Works (86)

Updated: July 5th, 2023 15:58

2020 journal article

Experimental study on texturability of filament yarns produced from recycled PET

TEXTILE RESEARCH JOURNAL, 90(23-24), 2703–2713.

By: M. Abbasi*, M. Mojtahedi* & R. Kotek n

author keywords: drawing; texturizing; recycled PET; filament; bottle grade
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: June 15, 2020

2019 journal article

Effects of drawing process on crimp formation-ability of side-by-side bicomponent filament yarns produced from recycled, fiber-grade and bottle-grade PET

JOURNAL OF THE TEXTILE INSTITUTE, 110(10), 1439–1444.

By: M. Abbasi* & R. Kotek n

author keywords: Bicomponent; PET; recycling; filament; draw ratio; side-by-side; crimp formation
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: June 24, 2019

2019 journal article

Mechanical properties of PTT fibers by sustainable horizontal isothermal bath process

SN APPLIED SCIENCES, 1(10).

By: M. Najafi n & R. Kotek n

author keywords: Poly(trimethylene terephthalate); Horizontal isothermal bath (HIB); Melt spinning process; Fiber tensile strength; Compact fibrillar morphology; Molecular orientation
Source: Web Of Science
Added: October 28, 2019

2019 journal article

Novel Membranes Regenerated from Blends of Cellulose/Gluten Using Ethylenediamine/Potassium Thiocyanate Solvent System

JOURNAL OF RENEWABLE MATERIALS, 7(1), 41–55.

By: Y. Yu*, R. Boy* & R. Kotek*

author keywords: Cellulose; gluten; blended film; novel; ED/KSCN solvent; physical and mechanical properties
Sources: Web Of Science, ORCID
Added: March 25, 2019

2018 journal article

Melt-spun PLA liquid-filled fibers: physical, morphological, and thermal properties

JOURNAL OF THE TEXTILE INSTITUTE, 110(1), 89–99.

author keywords: PLA hollow fibers; melt-spinning; biodegradable; microfluidics; liquid-filled fiber
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: February 25, 2019

2018 review

Recent advances in core/shell bicomponent fibers and nanofibers: A review

[Review of ]. JOURNAL OF APPLIED POLYMER SCIENCE, 135(21).

author keywords: bicomponent fibers; co-flowing; electrospinning; melt spinning; microfluidics
Source: Web Of Science
Added: August 6, 2018

2017 review

A review on aerogel: 3D nanoporous structured fillers in polymer-based nanocomposites

[Review of ]. POLYMER COMPOSITES, 39(10), 3383–3408.

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: November 5, 2018

2017 article

Production of polyolefins

POLYOLEFIN FIBRES: STRUCTURE, PROPERTIES AND INDUSTRIAL APPLICATIONS, 2ND EDITION, pp. 189–264.

By: R. Kotek n, M. Afshari*, H. Avci* & M. Najafi n

Source: Web Of Science
Added: August 6, 2018

2016 journal article

A Review of Cellulose and Cellulose Blends for Preparation of Bio-derived and Conventional Membranes, Nanostructured Thin Films, and Composites

Polymer Reviews, 58(1), 102–163.

author keywords: Cellulose; membranes; films; NFC; CNC
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Crossref, ORCID
Added: December 19, 2018

2016 journal article

Development of High-Tenacity, High-Modulus Poly(ethylene terephthalate) Filaments via a Next Generation Wet-Melt-Spinning Process

POLYMER ENGINEERING AND SCIENCE, 57(2), 224–230.

By: J. Yoon*, H. Avci*, M. Najafi n, L. Nasri, S. Hudson n & R. Kotek n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 journal article

Novel cellulose-collagen blend biofibers prepared from an amine/salt solvent system

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 92, 1197–1204.

By: R. Boy n, G. Narayanan n, C. Chung n & R. Kotek n

author keywords: Cellulose; Collagen; Polysaccharide-protein blend; Biofibers
MeSH headings : Cellulose / chemistry; Collagen / chemistry; Ethylenediamines / chemistry; Methanol / chemistry; Solutions; Solvents / chemistry; Tensile Strength; Thiocyanates / chemistry; Viscosity
TL;DR: The chemical and thermal analysis revealed an intermolecular interaction between cellulose and the protein and improved thermal stability, respectively, and biofibers containing higher cellulose content showed higher crystallinity, tensile, and birefringence properties of the composite fibers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, ORCID
Added: August 6, 2018

2016 journal article

Properties of cellulose–soy protein blend biofibers regenerated from an amine/salt solvent system

Cellulose, 23(6), 3747–3759.

By: R. Boy n, M. Bourham n & R. Kotek n

author keywords: Cellulose; Soy protein isolate; Blend; Biofiber; Biodegradation
Sources: Web Of Science, ORCID, NC State University Libraries, Crossref
Added: August 6, 2018

2015 journal article

High-performance filaments by melt spinning low viscosity nylon 6 using horizontal isothermal bath process

POLYMER ENGINEERING AND SCIENCE, 55(11), 2457–2464.

By: M. Najafi n, H. Avci* & R. Kotek n

UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Highly crystalline and oriented high-strength poly(ethylene terephthalate) fibers by using low molecular weight polymer

JOURNAL OF APPLIED POLYMER SCIENCE, 132(45).

By: H. Avci n, M. Najafi n, A. Kilic* & R. Kotek n

author keywords: extrusion; fibers; mechanical properties; polyesters; X-ray
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Properties of chitosan/soy protein blended films with added plasticizing agent as a function of solvent type at acidic pH

INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS, 65(1), 11–17.

By: R. Boy n, C. Maness n & R. Kotek n

author keywords: Chitosan; soy protein; blend films
Sources: Web Of Science, ORCID
Added: August 6, 2018

2014 journal article

Controlling of Threadline Dynamics via a Novel Method to Develop Ultra-High Performance Polypropylene Filaments

POLYMER ENGINEERING AND SCIENCE, 55(2), 327–339.

By: H. Avci n, R. Kotek n & B. Toliver

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Cellulose and Soy Proteins Based Membrane Networks

Macromolecular Symposia, 329(1), 70–86.

By: Y. Zhu*, E. Douglass*, T. Theyson, R. Hogan & R. Kotek n

author keywords: cellulose; crosslinking; glutaraldehyde; network; soy proteins
Source: Crossref
Added: February 24, 2020

2013 journal article

Characterization of Degradation of Polypropylene Nonwovens Irradiated by gamma-Ray

JOURNAL OF APPLIED POLYMER SCIENCE, 131(4).

By: B. Keene, M. Bourham n, V. Viswanath n, H. Avci n & R. Kotek n

author keywords: fibers; degradation; polyolefins; textiles
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2013 article

Developing an ecologically friendly isothermal bath to obtain a new class high-tenacity and high-modulus polypropylene fibers

Avci, H., Kotek, R., & Yoon, J. (2013, November). JOURNAL OF MATERIALS SCIENCE, Vol. 48, pp. 7791–7804.

By: H. Avci n, R. Kotek n & J. Yoon n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2013 journal article

Preparation of antibacterial PVA and PEO nanofibers containing Lawsonia Inermis (henna) leaf extracts

JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION, 24(16), 1815–1830.

By: H. Avci n, R. Monticello & R. Kotek n

author keywords: Lawsonia Inermis; henna; electrospinning; S. aureus; E. coli; PVA and PEO
MeSH headings : Anti-Bacterial Agents / chemistry; Anti-Bacterial Agents / isolation & purification; Anti-Bacterial Agents / pharmacology; Escherichia coli / drug effects; Lawsonia Plant / chemistry; Nanofibers / chemistry; Phenol / analysis; Plant Extracts / chemistry; Plant Extracts / isolation & purification; Plant Extracts / pharmacology; Plant Leaves / chemistry; Polyethylene Glycols / chemistry; Polyvinyl Alcohol / chemistry; Staphylococcus aureus / drug effects; Surface Properties
TL;DR: This study demonstrates that 2.793 wt.% Li in PVA and PEO based solutions showed bactericidal effects against Staphylococcus aureus and bacteriostatic action to Escherichia coli. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Durable hydrophobic cotton surfaces prepared using silica nanoparticles and multifunctional silanes

JOURNAL OF THE TEXTILE INSTITUTE, 103(4), 385–393.

By: B. Roe n, R. Kotek n & X. Zhang n

Contributors: B. Roe n, R. Kotek n & X. Zhang n

author keywords: cotton; silica nanoparticles; silane; surface treatment; hydrophobicity
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2012 journal article

Evaluation of the Food Day School Curriculum to Teach Children Why and How to EAT REAL

Journal of Nutrition Education and Behavior, 44(4), S71.

By: K. Porter*, P. Koch, R. Kotek*, M. Hays & I. Contento

UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Crossref
Added: February 24, 2020

2012 journal article

Modification of beta-cyclodextrin with itaconic acid and application of the new derivative to cotton fabrics

CARBOHYDRATE POLYMERS, 88(3), 950–958.

By: M. Nazi*, R. Malek* & R. Kotek n

author keywords: beta-Cyclodextrin itaconate; Cotton fabrics; Esterification; Graft copolymerisation
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2012 journal article

Relationship between tensile properties and ballistic performance of poly(ethylene naphthalate) woven and nonwoven fabrics

JOURNAL OF APPLIED POLYMER SCIENCE, 125(3), 2271–2280.

By: M. Afshari n, P. Chen* & R. Kotek n

author keywords: poly(ethylene naphthalate); ballistic performance; woven fabric; nonwoven fabric; tensile properties
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2011 journal article

The promotion of axon extension in vitro using polymer-templated fibrin scaffolds

Biomaterials, 32(21), 4830–4839.

By: J. Scott*, M. Afshari n, R. Kotek n & J. Saul*

author keywords: Fibrin; Micropatterning; Nerve guide; Nerve tissue engineering; Scaffold
MeSH headings : Axons / metabolism; Biocompatible Materials / chemistry; Elasticity; Fibrin / chemistry; Guided Tissue Regeneration / instrumentation; Guided Tissue Regeneration / methods; Materials Testing; Nerve Regeneration / physiology; Polymers / chemistry; Porosity; Tensile Strength; Tissue Scaffolds / chemistry
TL;DR: This work developed fibrin constructs fabricated by a sacrificial templating approach, yielding scaffolds with multiple 10-250 μm diameter conduits depending on the diameter of the template fibers, which showed mechanical properties comparable to native nerve. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Crossref, Web Of Science
Added: August 6, 2018

2010 journal article

Controlling the Formation of Silver Nanoparticles on Silica by Photochemical Deposition and Other Means dagger

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 86(4), 806–812.

By: J. Vinci n, P. Bilski*, R. Kotek n & C. Chignell*

MeSH headings : Light; Metal Nanoparticles / chemistry; Oxides / chemical synthesis; Oxides / chemistry; Particle Size; Photochemistry; Silicon Dioxide / chemistry; Silver / chemistry; Silver Compounds / chemical synthesis; Silver Compounds / chemistry; Surface Plasmon Resonance; Surface Properties; Time Factors
TL;DR: Various ways to control their production are presented through initial concentration adjustments, irradiation effects, gravitational fractionation, sonication and silver oxide formation to better utilize and understand Ag‐NP. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2010 patent

High modulus polyamide fibers

By: D. Jun, R. Kotek, A. Tonelli & N. Vasanthan

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Constrained/Directed Crystallization of Nylon-6. I. Nonstoichiometric Inclusion Compounds Formed with Cyclodextrins

MACROMOLECULES, 42(22), 8983–8991.

By: A. Mohan n, X. Joyner n, R. Kotek n & A. Tonelli n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Direct Formation and Characterization of a Unique Precursor Morphology in the Melt-Spinning of Polyesters

MACROMOLECULES, 42(15), 5437–5441.

By: P. Chen*, M. Afshari*, J. Cuculo* & R. Kotek*

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Electrospun hydrophilic fumed silica/polyacrylonitrile nanofiber-based composite electrolyte membranes

ELECTROCHIMICA ACTA, 54(13), 3630–3637.

By: H. Jung*, D. Ju*, W. Lee*, X. Zhang n & R. Kotek n

Contributors: H. Jung*, D. Ju*, W. Lee*, X. Zhang n & R. Kotek n

author keywords: Composite polymer electrolyte; Electrospinning; Polyacrylonitrile; Fumed silica
UN Sustainable Development Goal Categories
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2008 review

Advances in the production of poly(ethylene naphthalate) fibers

[Review of ]. POLYMER REVIEWS, 48(2), 392–421.

By: P. Chen n & R. Kotek n

author keywords: poly(ethylene naphthalate); high performance fibers; spin-draw; high-speed spinning; mechanical properties; morphology
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Enzymatic hydrolysis of PTT polymers and oligomers

JOURNAL OF BIOTECHNOLOGY, 135(1), 45–51.

By: A. Eberl*, S. Heumann*, R. Kotek n, F. Kaufmann*, S. Mitsche*, A. Cavaco-Paulo*, G. Guebitz*

author keywords: poly(trimethylene terephthalate); polyester; polyesterase; cutinase
MeSH headings : Esterases / chemistry; Fungal Proteins / chemistry; Hydrolysis; Polyethylene Terephthalates / chemistry; Polymers / chemistry
TL;DR: Oligomers and polymers of the linear aromatic polyester poly(trimethylene terephthalate) (PTT) were treated with polyesterases from Thermomyces lanuginosus, Penicillium citrinum, Thermobifida fusca and Fusarium solani pisi to investigate hydrophilicity changes and the degree of crystallinity changes were determined with DSC. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Photostability of isotactic polypropylene containing monoazo pigment

JOURNAL OF APPLIED POLYMER SCIENCE, 108(5), 2950–2957.

By: Z. Ahmadi n, M. Kish*, H. Freeman n, R. Kotek n & A. Katbab*

author keywords: photodegradation; polypropylene; organic pigment; photostabilizer; antioxidant
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

Porous Nylon-6 Fibers via a Novel Salt-Induced Electrospinning Method

MACROMOLECULES, 42(3), 709–715.

By: A. Gupta*, C. Saquing*, M. Afshari*, A. Tonelli*, S. Khan* & R. Kotek*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Properties of Lewis acid-base complex of nylon 6,6: Route to high performance fibers

Polymer, 49, 1297–1304.

By: M. Afshari, A. Gupta, D. Wook, R. Kotek, A. Tonelli & N. Vasanthan

Source: NC State University Libraries
Added: August 6, 2018

2008 journal article

Properties of films and fibers obtained from Lewis acid-base complexed nylon 6,6

POLYMER, 49(5), 1297–1304.

By: M. Afshari n, A. Gupta n, D. Jung n, R. Kotek n, A. Tonelli n & N. Vasanthan*

author keywords: nylon; complexation; GaCl3
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2008 review

Recent advances in polymer fibers

[Review of ]. POLYMER REVIEWS, 48(2), 221–229.

By: R. Kotek n

author keywords: polymer fibers; high performance fibers; shape memory fibers; eletrospinning; biopolymers; polyester fibers
TL;DR: The objectives of this issue are to provide readers an overview of significant advances for the production of high performance fibers such as Kevlar, PBO, Spectra and Dyneema fibers and to describe new super strong M5 fibers, highly elastic XLA™ fibers and self‐crimping T‐400, T‐800, and other fibers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2007 journal article

A novel method for producing porous Nylon 6 nanofibers

Polymer.

By: A. Tonelli, M. Ashrafi, A. Gupta & R. Kotek

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Morphology of electrospun nylon-6 nanofibers as a function of molecular weight and processing parameters

JOURNAL OF APPLIED POLYMER SCIENCE, 108(1), 308–319.

By: S. Ojha n, M. Afshari n, R. Kotek n & R. Gorga n

author keywords: electrospinning; molecular weight; nanofibers; morphology; mechanical properties
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Photo-stability of pigmented isotactic polypropylene

Journal of Applied Polymer Science, 104.

By: Z. Ahmadi, M. Kish, H. Freeman, R. Kotek & A. Katbab

Source: NC State University Libraries
Added: August 6, 2018

2007 chapter

Producing fibers by electrospinning

In P.J. Brown & K. Stevens (Eds.), Nanofibers and nanotechnology in textiles. Cambridge: Woodhead Publishing, in association with The Textile Institute.

By: M. Afshari, R. Kotek, D. Jung & A. Tonelli

Ed(s): . P.J. Brown & K. Stevens

Source: NC State University Libraries
Added: August 6, 2018

2007 chapter

Producing polyamide nanofibers by electrospinning

In P.J. Brown & K. Stevens (Eds.), Nanofibers and nanotechnology in textiles (pp. 71–87).

By: M. Afshari*, D. Wook, R. Kotek* & A. Tonelli*

Ed(s): . P.J. Brown & K. Stevens

Source: NC State University Libraries
Added: August 6, 2018

2007 conference paper

Spinning of semi-rigid polymers

In I. Krucin?ska & J. Zaja?czkowski (Eds.), Proceedings of IX international scientific conference: IMTEX 2007, Lo?dz?-Poland, October 8-9, 2007. Lo?dz? : Katedra Architektury Tekstylio?w Politechniki Lo?dzkiej.

By: H. Lee, J. Onori, M. Afshari, J. Cuculo & R. Kotek

Ed(s): I. Krucin?ska & J. Zaja?czkowski

Source: NC State University Libraries
Added: August 6, 2018

2006 chapter

Regenerated cellulose fibers

In Handbook of fiber chemistry (3rd. Ed.).

By: R. Kotek*

Source: NC State University Libraries
Added: August 6, 2018

2006 journal article

Reorganization of the chain packing between poly(ethylene isophthalate) chains via coalescence from their inclusion compound formed with gamma-cyclodextrin

JOURNAL OF APPLIED POLYMER SCIENCE, 102(6), 6049–6053.

By: K. Pang n, B. Schmidt n, R. Kotek n & A. Tonelli n

author keywords: poly(ethylene isophthalate); synthesis; gamma-cyclodextrin; inclusion complex; coalesced PEI
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 review

Review of conventional and novel polymerization processes for polyesters

[Review of ]. PROGRESS IN POLYMER SCIENCE, 31(11), 1009–1037.

By: K. Pang n, R. Kotek n & A. Tonelli n

author keywords: polyester; cyclic; oligoester; ring-opening; polymerization; gas-barrier
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Ring-opening polymerization of the cyclic dimer of poly(trimethylene terephthalate)

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 44(23), 6801–6809.

By: K. Pang n, R. Kotek n & A. Tonelli n

author keywords: macrocycles; oligomers; polyesters; ring-opening polymerization; synthesis
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 chapter

Conventional and novel polymerizations and physical properties of polyesters

In G.E. Zaikov & Y. B. Monakov (Eds.), Focus on polymer research. New York: Nova Science Publishers.

By: K. Pang, R. Kotek & A. Tonelli

Ed(s): . G.E. Zaikov & Y. Monakov

Source: NC State University Libraries
Added: August 6, 2018

2005 journal article

Mechanical and structural properties of melt spun polypropylene/nylon 6 alloy filaments

JOURNAL OF APPLIED POLYMER SCIENCE, 97(2), 532–544.

By: M. Afshari*, R. Kotek n, B. Gupta n, M. Kish* & H. Dast*

author keywords: polypropylene; nylon; alloys; orientation
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 review

Novel methods for obtaining high modulus aliphatic polyamide fibers

[Review of ]. JOURNAL OF MACROMOLECULAR SCIENCE-POLYMER REVIEWS, C45(3), 201–230.

By: R. Kotek n, D. Jung, A. Tonelli n & N. Vasanthan*

author keywords: high modulus polyamide fibers; aliphatic polyamides; recombinant spider silk proteins
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

High modulus nylon 6,6 fibers through lewis acid-base complexation to control hydrogen bonding to enhance drawing behavior

Polymeric Materials: Science and Engineering, 91, 354.

By: D. Jung, R. Kotek, N. Vasanthan & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2004 conference paper

High modulus nylon 66 fibers

Magic world of textiles: book of proceedings, International Textile Clothing & Design Conference, October 3rd to October 6th, 2004, Dubrovnik, Croatia. Zagreb: Faculty of Textile Technology, University of Zagreb.

By: R. Kotek, D. Jung & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2004 conference paper

Interface phenomena of hydrolyzed polyester fabric

Magic world of textiles: book of proceedings, International Textile Clothing & Design Conference, October 3rd to October 6th, 2004, Dubrovnik, Croatia. Zagreb: Faculty of Textile Technology, University of Zagreb.

By: A. Grancaric, V. Kovacevic, M. Leskovac, A. Tarbuk, R. Kotek & D. Jung

Source: NC State University Libraries
Added: August 6, 2018

2004 conference paper

Lewis acid-base complexation of polyamide 66 as a means to control hydrogen bonding to form high strength fibers and films

Papers presented at the Anaheim, California meeting : 227th ACS national meeting, Anaheim, CA, March 28 - April 1, 2004, 45(1), 787. Blacksburg, Va.: ACS, Div. of Polymer Chemistry.

By: N. Vasanthan, R. Kotek, D. Jung, D. Shin, D. Salem & A. Tonelli

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Lewis acid-base complexation of polyamide 66 to control hydrogen bonding, extensibility and crystallinity

Polymer, 45(12), 4077–4085.

By: N. Vasanthan, R. Kotek, D. Jung, D. Shin, A. Tonelli & D. Salem

Source: NC State University Libraries
Added: August 6, 2018

2004 journal article

Lewis acid–base complexation of polyamide 66 to control hydrogen bonding, extensibility and crystallinity

Polymer, 45(12), 4077–4085.

By: N. Vasanthan*, R. Kotek n, D. Jung n, D. Shin*, A. Tonelli n & D. Salem*

author keywords: polyamide 66; complexation; hydrogen bonding
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Crossref
Added: August 28, 2020

2004 journal article

Studies on poly(trimethylene terephthalate) filaments containing silver

JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION, 15(12), 1545–1559.

By: S. El Ola*, R. Kotek*, M. King*, J. Kim, R. Monticello & J. Reeve

author keywords: antimicrobial fibers; silver ions; zeolite; poly(trimethylene terephthalate)
MeSH headings : Anti-Infective Agents / chemistry; Biocompatible Materials / chemistry; Biocompatible Materials / pharmacology; Calorimetry, Differential Scanning; Escherichia coli / drug effects; Materials Testing; Polyethylene Terephthalates / chemistry; Polyethylene Terephthalates / pharmacology; Silver / chemistry; Silver / pharmacology; Tensile Strength; Viscosity; Zeolites / chemistry; Zeolites / pharmacology
TL;DR: It is shown that PTT fibers containing sufficient amounts of silver ions are effective in reducing pathological microorganisms such as Escherichia coli and thermal, tensile and antimicrobial properties of the spun filaments are reported. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2004 journal article

Surface hydrolysis of filaments based on poly(trimethylene terephthalate) spun at high spinning speeds

JOURNAL OF APPLIED POLYMER SCIENCE, 92(3), 1724–1730.

By: R. Kotek n, D. Jung n, J. Kim*, B. Smith n, P. Guzman n & B. Schmidt n

author keywords: poly(trimethylene terephthalate); polyesters; alkaline hydrolysis; porous fibers; high speed spinning; extrusion; polyesters; surfaces
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Synthesis and gas barrier characterization of poly(ethylene isophthalate)

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 42(23), 4247–4254.

By: R. Kotek n, K. Pang n, B. Schmidt n & A. Tonelli n

author keywords: barrier; diffusion; polyesters; step-growth polymerization
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Unusual polymerization of 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride on PET substrates

POLYMER, 45(10), 3215–3225.

By: S. El Ola*, R. Kotek n, W. White, J. Reeve, P. Hauser n & J. Kim*

author keywords: silane polymerization; trimethoxysilane; ammonium salts
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2003 conference paper

Surface hydrolysis of filaments based on poly(trimethylene terephthalate)

3rd AUTEX Conference: 25-27 June 2003, Gdan?sk-Poland: World Textile Conference. Lo?dz?

By: R. Kotek, D. Jung, J. Kim, B. Smith, P. Guzman & B. Schmidt

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Effect of blend ratio on bulk properties and matrix-fibril morphology of polypropylene/nylon 6 polyblend fibers

POLYMER, 43(4), 1331–1341.

By: M. Afshari*, R. Kotek n, M. Kish*, H. Dast* & B. Gupta n

author keywords: matrix-fibril morphology; polypropylene; nylon 6
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Alkaline depolymerization of poly(trimethylene terephthalate)

JOURNAL OF APPLIED POLYMER SCIENCE, 82(1), 99–107.

By: J. Kim*, J. Lee*, J. Yoon*, W. Lyoo* & R. Kotek n

author keywords: poly(trimethylene terephthalate) (PTT); alkaline depolymerization; rate constant; ethereal solvents
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2001 journal article

Effect of high speed spinning on physical properties and dyeing kinetics of PTT filaments

Chemical Fibers International, 51, 204.

By: R. Kotek, D. Jung, B. Smith & J. Kim

Source: NC State University Libraries
Added: August 6, 2018

2001 conference paper

Polymerization of silane quaternary ammonium salts on fibers

Papers presented at the San Diego, California, meeting., 42(1), 106. Newark, NJ: Division of Polymer Chemistry, American Chemical Society.

By: R. Kotek, S. Abo El Ola, W. White & P. Hauser

Source: NC State University Libraries
Added: August 6, 2018

2000 patent

Process of making hollow filaments

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek, W. Li., G. Shore & L. Yeh

Source: NC State University Libraries
Added: August 6, 2018

1999 patent

Reclaiming epsilon-caprolactam from nylon 6 carpet

Washington, DC: U.S. Patent and Trademark Office.

By: T. Corbin, A. Handerman, R. Kotek, W. Porter, J. Dellinger & E. Davis

Source: NC State University Libraries
Added: August 6, 2018

1997 patent

Fiber-forming modified polyamide blends

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek & H. Matthies

Source: NC State University Libraries
Added: August 6, 2018

1997 patent

Process for melt-spinning fibers from modified polyamide blends

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek & H. Matthies

Source: NC State University Libraries
Added: August 6, 2018

1997 patent

Saxony carpets having fibers formed of modified polyamide blends

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek & H. Matthies

Source: NC State University Libraries
Added: August 6, 2018

1996 patent

Modified nylon fibers

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek & H. Matthies

Source: NC State University Libraries
Added: August 6, 2018

1994 patent

Semi-continuous depolymerization of nylon 6 polymer

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek

Source: NC State University Libraries
Added: August 6, 2018

1993 patent

Hollow trilobal cross-section filament

Washington, DC: U.S. Patent and Trademark Office.

By: R. Kotek & Y. L.

Source: NC State University Libraries
Added: August 6, 2018

1992 journal article

Poly(p-Phenyleneterephthalamide) of high molecular weight by the modified Higashi phosphorylation reaction

Macromolecular Syntheses, 11.

By: J. Preston & W. Krigbaum

Source: NC State University Libraries
Added: August 6, 2018

1992 journal article

Poly(p-benzamide) of moderate molecular weight by Yamazaki phosphorylation reaction

Macromolecular Syntheses, 11.

By: J. Preston & W. Krigbaum

Source: NC State University Libraries
Added: August 6, 2018

1988 journal article

THERMOTROPIC POLYESTERS OF 4'-HYDROXYPHENYL-4-HYDROXYBENZOATE - A STUDY OF THE TRANSITION-TEMPERATURES

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 26(6), 1173–1186.

By: R. Kotek* & W. Krigbaum*

Source: Web Of Science
Added: August 6, 2018

1986 article

COMMENT ON A PAPER BY CLOSE, FORNES, AND GILBERT

KRIGBAUM, W. R., KOTEK, R., & PRESTON, J. (1986, March). JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, Vol. 24, pp. 713–715.

By: W. Krigbaum*, R. Kotek* & J. Preston*

Source: Web Of Science
Added: August 6, 2018

1985 journal article

NEMATOGENIC POLYMERS HAVING RIGID CHAINS .1. SUBSTITUTED POLY(PARA-PHENYLENE TEREPHTHALATES)

MACROMOLECULES, 18(5), 965–973.

By: W. Krigbaum, H. Hakemi & R. Kotek*

Source: Web Of Science
Added: August 6, 2018

1985 journal article

PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .10. A STUDY OF HIGASHI REACTION CONDITIONS

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 23(7), 1907–1916.

By: W. Krigbaum*, R. Kotek*, Y. Mihara* & J. Preston*

UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1984 article

PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .8.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Vol. 22, pp. 873–876.

By: W. Krigbaum*, R. Kotek* & J. Preston*

Source: Web Of Science
Added: August 6, 2018

1984 article

PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .9. EFFECT OF REACTION TEMPERATURE ON MOLECULAR-WEIGHT ON POLY(P-PHENYLENE TEREPHTHALAMIDE)

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Vol. 22, pp. 4045–4047.

By: W. Krigbaum*, R. Kotek*, Y. Mihara* & J. Preston*

Source: Web Of Science
Added: August 6, 2018

1984 journal article

THERMOTROPIC HOMOPOLYESTERS .6. A STUDY OF POLYMERS BASED ON 4'-HYDROXYPHENYL-4-HYDROXYBENZOATE

EUROPEAN POLYMER JOURNAL, 20(3), 225–235.

By: W. Krigbaum*, R. Kotek*, T. Ishikawa*, H. Hakemi* & J. Preston*

Source: Web Of Science
Added: August 6, 2018

1983 article

PREPARATION OF POLYAMIDES VIA THE PHOSPHORYLATION REACTION .7. SYNTHESIS OF POLYOXAMIDES AND REGULAR COPOLYOXAMIDES

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, Vol. 21, pp. 2837–2841.

By: R. Kotek*, W. Krigbaum* & J. Preston*

Source: Web Of Science
Added: August 6, 2018

1983 journal article

Thermotropic homopolyesters. IV: Study of fibers formation

Journal of Polymer Science. Part B, Polymer Physics, 21, 2027.

By: D. Acierno*, F. LaMantia*, G. Polizzotti*, A. Ciferri*, W. Krigbaum* & R. Kotek*

Source: NC State University Libraries
Added: August 6, 2018

1982 journal article

Synthesis of high-molecular-weight rodlike polyamides and block copolymers

Journal of Polymer Science. Part A, Polymer Chemistry, 20(11), 3241.

By: J. Preston*, W. Krigbaum* & R. Kotek*

Source: NC State University Libraries
Added: August 6, 2018

1981 journal article

Synthesis of cyclolinear phosphazene oligomers by reaction of cylcophosphazene dichloride trimer, dissodium salts of dihydroxy compounds and sodium p-bromophenolate

Macromolecular Materials and Engineering, 99, 1.

By: B. Laszkiewicz & R. Kotek

Source: NC State University Libraries
Added: August 6, 2018

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