Works (7)

Updated: July 5th, 2023 15:49

2015 journal article

Delignification of Lignocellulosic Biomass and Its Effect on Subsequent Enzymatic Hydrolysis

BIORESOURCES, 10(2), 2732–2743.

By: J. Park n, H. Shin*, S. Yoo n, J. Zoppe n & S. Park n

author keywords: Delignification; Enzymatic hydrolysis; Water retention value
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Effects of Delignification on Crystalline Cellulose in Lignocellulose Biomass Characterized by Vibrational Sum Frequency Generation Spectroscopy and X-ray Diffraction

BIOENERGY RESEARCH, 8(4), 1750–1758.

By: K. Kafle*, C. Lee*, H. Shin n, J. Zoppe n, D. Johnson*, S. Kim*, S. Park*

author keywords: Biomass; Crystalline cellulose; Delignification; Sum frequency generation spectroscopy; X-ray diffraction
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2011 journal article

Pickering emulsions stabilized by cellulose nanocrystals grafted with thermo-responsive polymer brushes

Journal of Colloid and Interface Science, 369(1), 202–209.

By: J. Zoppe n, R. Venditti n & O. Rojas n

author keywords: Pickering emulsions; Oil-in-water emulsions; Cellulose nanoparticles; Cellulose nanocrystals; Thermo-responsive emulsions; Poly(N-isopropylacrylamide); LCST; Grafts; Surface-initiated single-electron transfer; living radical polymerization
MeSH headings : Acrylic Resins / chemistry; Cellulose / chemistry; Emulsions / chemistry; Nanoparticles / chemistry; Nanoparticles / ultrastructure; Polymers / chemistry; Temperature
TL;DR: Cellulose nanocrystals from ramie fibers are studied as stabilizers of oil-in-water emulsions and the effect of temperature can be counterbalanced with the addition of salt which is explained by the reduction of electrostatic and steric interactions of poly(NIPAM)-g-CNCs at the oil-water interface. (via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2011 journal article

Surface Interaction Forces of Cellulose Nanocrystals Grafted with Thermoresponsive Polymer Brushes

Biomacromolecules, 12(7), 2788–2796.

By: J. Zoppe n, M. Österberg*, R. Venditti n, J. Laine* & O. Rojas n

MeSH headings : Acrylamides / chemistry; Acrylic Resins; Cellulose / chemistry; Nanoparticles / chemistry; Particle Size; Polymers / chemistry; Sodium Chloride / chemistry; Surface Properties; Temperature
TL;DR: The decreased mobility of polymer brushes upon partial collapse and decreased availability of hydrogen bonding sites with higher electrolyte concentration were hypothesized as the main reasons for the less prominent polymer bridging between interacting surfaces. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2010 journal article

Nanofiber Composites of Polyvinyl Alcohol and Cellulose Nanocrystals: Manufacture and Characterization

BIOMACROMOLECULES, 11(3), 674–681.

By: M. Peresin n, Y. Habibi n, J. Zoppe n, J. Pawlak n & O. Rojas n

MeSH headings : Calorimetry, Differential Scanning; Cellulose / chemistry; Hydrogen Bonding; Microscopy, Electron, Scanning; Nanofibers; Nanoparticles; Polyvinyl Alcohol / chemistry; Spectroscopy, Fourier Transform Infrared; Temperature
TL;DR: The elastic modulus of the nanocomposite mats increased significantly as a consequence of the reinforcing effect of CNs via the percolation network held by hydrogen bonds, but this organization-driven crystallization was limited as observed by the reduction in the degree of crystallinity of the CN-loaded composite fibers. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2010 journal article

Poly(<i>N</i>-isopropylacrylamide) Brushes Grafted from Cellulose Nanocrystals via Surface-Initiated Single-Electron Transfer Living Radical Polymerization

Biomacromolecules, 11(10), 2683–2691.

MeSH headings : Acrylamides / chemical synthesis; Acrylamides / chemistry; Acrylic Resins; Boehmeria / chemistry; Calorimetry, Differential Scanning; Cellulose / chemistry; Chromatography, Gel; Electron Transport; Nanoparticles / chemistry; Photoelectron Spectroscopy; Polymerization; Polymers / chemical synthesis; Polymers / chemistry; Spectroscopy, Fourier Transform Infrared; X-Ray Diffraction
TL;DR: It is expected that suspension stability, interfacial interactions, friction, and other properties of grafted CNCs can be controlled by changes in temperature and provide a unique platform for further development of stimuli-responsive nanomaterials. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2009 journal article

Reinforcing Poly(ε-caprolactone) Nanofibers with Cellulose Nanocrystals

ACS Applied Materials & Interfaces, 1(9), 1996–2004.

By: J. Zoppe n, M. Peresin n, Y. Habibi n, R. Venditti n & O. Rojas n

author keywords: cellulose nanocrystals; nanocrystalline cellulose; cellulose whiskers; surface grafting; electrospinning; fiber reinforcement; nanofibers; nanocomposites; nanoparticles; poly(epsilon-caprolactone)
MeSH headings : Calorimetry, Differential Scanning; Cellulose / chemistry; Materials Testing; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Nanofibers / chemistry; Nanoparticles / chemistry; Nanostructures / chemistry; Nanotechnology / methods; Polyesters / chemistry; Spectroscopy, Fourier Transform Infrared; Surface Properties; Temperature; Thermogravimetry; Tissue Engineering / instrumentation
TL;DR: Compared to the case of grafted nanocrystals, the unmodified ones imparted better morphological homogeneity to the nanofibrillar structure as well as thermal and mechanical properties of filled and unfilled nanofibers after reinforcement with unmodified CNXs. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

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