@article{park_banerjee_jin_li_beck_purser_ford_2023, title={Organophosphate-Cyclodextrin Inclusion Complex for Flame Retardancy in Doped Cellulose Acetate Butyrate Melt-Spun Fibers}, ISSN={["1520-5045"]}, DOI={10.1021/acs.iecr.3c00712}, abstractNote={Organophosphates are widely used flame retardants (FR) in everyday applications, and their leaching over time is a gaining concern. In this research, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was chosen as a representative organophosphate FR to examine inclusion complex (IC) formation with γ-cyclodextrins (γ-CD) to enhance char formation as well as prevent the unnecessary release of toxic FR chemicals. The addition of ionic salts, sodium chloride (NaCl), and calcium chloride (CaCl2) during the formation increased the yield of IC crystals by up to 50%. However, perfect crystals were formed only when pure IC was formed, devoid of only metal crystals. Continuous melt spinning of cellulose acetate butyrate (CAB) is practically very difficult in the presence of incompatible DOPO in the system. The formed IC was compatible with biopolymer CAB due to hydroxyl groups from γ-cyclodextrin at the periphery. CAB/IC fibers were melt-spun alongside reference pure CAB and CAB/CD fibers. CAB was found to form complexation with CD in the absence of DOPO in the cavity, as corroborated by FTIR and tensile properties. Furthermore, the response to flame was noted as compared to reference pure CAB and CAB/CD fibers. CAB/IC was found to have self-extinguishing behavior via the formation of a char layer even at ∼0.8 wt % DOPO fraction in the fiber.}, journal={INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH}, author={Park, Yaewon and Banerjee, Debjyoti and Jin, Soo Ah and Li, Shanshan and Beck, Susan and Purser, Lauren and Ford, Ericka}, year={2023}, month={Jul} }
 @article{researchers find new way to kick-start process of making of carbon fiber_2022, url={https://news.ncsu.edu/2022/01/researchers-find-new-way-to-kick-start-process-of-making-of-carbon-fiber/}, year={2022}, month={Jan} }
 @article{dutta_banerjee_ghosh_2021, title={Controlling foamability of polypropylene/gamma-irradiated ethylene acrylic elastomer blends by extent of crosslinking and domain microstructure of elastomer}, volume={12}, ISSN={["1530-8006"]}, url={https://doi.org/10.1177/00952443211058846}, DOI={10.1177/00952443211058846}, abstractNote={ Foams of polypropylene/elastomer blends can often lead to softer foams which may not be desirable every time. Incorporating rigidity to the foams can often be made possible by preferentially crosslinking the elastomer phase prior to blending. Although foamability of polypropylene/elastomer blends has been understood in the scientific community, the influence of the extent of crosslinking in the elastomer phase is not yet understood well. The purpose of this investigation is to identify the influence of the extent of elastomer crosslinking and the blend morphological attributes (achieved by varying screw speed during melt mixing) on foamability of polypropylene/partially crosslinked elastomer blends. Crosslinking of ethylene-acrylic elastomer is carried out using gamma radiation with several doses (0, 12.5, 25, 50 kGy) before melt blending and, subsequently, 10 wt.% of the irradiated elastomers (prior optimized) are mixed with polypropylene in a micro-compounder at three different screw speeds. The microstructure development in blends is characterized by scanning electron microscopy. Frequency sweep rheological analysis is done for selected blends to identify the ease of foamability among the series of blends. Foaming of blends is done with supercritical carbon dioxide in batch mode at three different temperatures. The density reduction along with the microcellular morphology development of blends with foaming is analyzed with the screw speed, the extent of crosslinking, and foaming temperature; furthermore, the individual input parameters (the elastomer domain size, controlled by the screw speed and the extent of crosslinking, controlled by gamma radiation dose) are optimized based on the foam morphology. A uniform and good foamability were achieved at 155 and 160°C for blends with elastomers, irradiated at 12.5 and 25 kGy radiation doses. The lowest density foam (0.37 g/cc) was obtained for polypropylene with 12.5 kGy irradiated crosslinked elastomer mixed at 200 rpm at 160°C foaming temperature. The final elastomer domain dispositions within the foam morphologies are characterized and the plausible foaming mechanism is proposed. }, number={4}, journal={JOURNAL OF ELASTOMERS AND PLASTICS}, publisher={SAGE Publications}, author={Dutta, Anindya and Banerjee, Debjyoti and Ghosh, Anup K.}, year={2021}, month={Dec} }
 @article{banerjee_dedmon_rahmani_pasquinelli_ford_2022, title={Cover Image, Volume 139, Issue 11}, url={https://doi.org/10.1002/app.51086}, DOI={10.1002/app.51086}, abstractNote={This cover image by Debjyoti Banerjee and co-authors shows a facile way to ionically cyclize polyacrylonitrile fiber precursors using aldaric acid sugars as anionic initiators. Carboxylate groups in the aldaric acid sugars are responsible for lowering the activation energy barrier needed to initiate the cyclization. This image depicts simulated extended polyacrylonitrile model chains of the fiber microstructure in succession with a cyclization reaction scheme that takes place under high temperatures. The scope of the work has direct applications in the carbon fiber industry. DOI: 10.1002/app.51781}, journal={Journal of Applied Polymer Science}, author={Banerjee, Debjyoti and Dedmon, Hannah and Rahmani, Farzin and Pasquinelli, Melissa and Ford, Ericka}, year={2022}, month={Mar} }
 @article{banerjee_dedmon_rahmani_pasquinelli_ford_2021, title={Cyclization kinetics of gel-spun polyacrylonitrile/aldaric-acid sugars using the isoconversional approach}, volume={10}, ISSN={["1097-4628"]}, url={https://doi.org/10.1002/app.51781}, DOI={10.1002/app.51781}, abstractNote={AbstractComonomers, such as methacrylic acid, itaconic acid, and acrylic acid, can minimize the activation energy of polyacrylonitrile (PAN) cyclization through their nucleophilic reaction with pendant nitrile groups. An understanding of how these comonomers affect the kinetics of PAN cyclization inspired this study on how the isomeric sugars (glucaric acid(cis) and mucic acid(trans)) would influence PAN cyclization. Until now, researchers have characterized the cyclization of PAN by single activation energy; however, this approach using differential scanning calorimetry does not represent the conversion dependent kinetics of cyclization. The isoconversional method was used to evaluate exotherms for cyclization at three different heating rates while allowing the calculation of activation energy at incremental increases in conversion (α). The aldaric acid sugars reduced the activation energy of initiation by ~five times in comparison to values observed for neat PAN fiber and the ratio of (k1/k2) (where k1 is the rate constant for initiation and k2 is the rate constant for propagation) improved by ~2 orders of magnitude. Based on molecular dynamic simulations, hydrogen bonding between the aldaric acids sugars and PAN lowered the activation energy at the onset of cyclization.}, number={11}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, publisher={Wiley}, author={Banerjee, Debjyoti and Dedmon, Hannah and Rahmani, Farzin and Pasquinelli, Melissa and Ford, Ericka}, year={2021}, month={Oct} }
 @article{dutta_banerjee_ghosh_2021, title={Improved tensile and impact responses of microcellular PP/γ-irradiated elastomer blends corroborating microstructure and crystallinity}, volume={8}, url={https://doi.org/10.1080/10601325.2021.1967168}, DOI={10.1080/10601325.2021.1967168}, abstractNote={Abstract The purpose of the present study was to compare the tensile and impact performances of foams of PP/γ-irradiated elastomer blends with that of the foams of PP/unirradiated elastomer blends. Furthermore, the morphological and crystallinity studies were considered to correlate the tensile and impact behavior of foams. Foaming of blends was carried out in a batch foaming set up with supercritical CO2. A continuous decrease in crystallinity was observed for both types of blends along with the relative change in the number of different crystal forms. Remarkable necking phenomenon and strain-induced crystallization were observed in foams. The tensile modulus of samples significantly increased up to 3 times than that of the neat samples at lower temperature foaming. The maximum modulus of foams was attained for the blends with 10% irradiated elastomer concentration. The impact strength of foam was also improved at the same condition, where the tensile modulus was highest. Graphical Abstract}, number={12}, journal={Journal of Macromolecular Science, Part A}, publisher={Informa UK Limited}, author={Dutta, Anindya and Banerjee, Debjyoti and Ghosh, Anup K.}, year={2021}, month={Dec}, pages={1–13} }
 @inbook{biswas_banerjee_saha_anjum_2021, title={Lignin-based nanoparticles}, url={http://dx.doi.org/10.1016/b978-0-12-824364-0.00007-1}, DOI={10.1016/b978-0-12-824364-0.00007-1}, abstractNote={Lignin is one of the most abundant bio-based macromolecules found in nature, second best to cellulose. Researchers all around the world have been putting their best efforts to extract the optimum potential of this abundant material, which could allow us to incorporate a cost-effective and eco-friendly approach to our lives. With the upcoming surge of awareness on sustainability, it is important to understand lignin as one of the most precious materials in today's times. This chapter specifically is dedicated to lignin as a wonder material and understanding its significance in light of the present context. The chapter starts with an introduction to lignin and its importance in guiding toward a sustainable future. Consequently, sources from where lignin can be effectively extracted have been discussed. A discussion on the composition, structure, and property of lignin has been put forward for the readers to get adequate clarity on the fundamentals. Furthermore, the chapter proceeds in describing the methods of synthesizing nanoparticles from lignin that involves conventional and green methods. Once the base is all set for the readers to understand the science from a materials perspective, specific applications have been discussed in this chapter based on the research that has been performed to date. On the basis of a meticulous understanding of lignin and its importance in nanomaterial applications, challenges and future directions have been proposed to inspire the readers to dive deep into the research area of lignin-based applications.}, booktitle={Biopolymeric Nanomaterials}, publisher={Elsevier}, author={Biswas, Manik Chandra and Banerjee, Debjyoti and Saha, Kowshik and Anjum, Samin}, year={2021}, pages={203–219} }
 @article{process for preparing de-lignified micro-fibrillated fibre_2020, year={2020}, month={Jul} }
 @article{banerjee_dutta_vimal_kapur_ghosh_2019, title={Correlation of Micro- and Macrostructural Attributes with the Foamability of Modified Polypropylene Using Supercritical CO2}, volume={58}, url={http://dx.doi.org/10.1021/acs.iecr.9b01258}, DOI={10.1021/acs.iecr.9b01258}, abstractNote={This study covers the micro- and macrostructural changes that take place prior to and after foaming in polypropylene (PP). Four industrial grades of PP with varying molecular weights and amorphous contents were considered. Batch foaming of the samples was carried out using supercritical CO2 at three different temperatures, keeping the saturation pressure constant. A straight correlation between the cell size and the density of foams was drawn. Differential scanning calorimetry measurements in coherence with wide-angle X-ray analysis gave unique insights into the crystallinity of foams. Furthermore, dynamic mechanical analysis (DMA) showed shifts in the transition peaks of foamed PPs as compared with their corresponding unfoamed states. The tensile properties of foams of impact copolymers, foamed at low temperature, possessed superior tensile toughness to that of the foams obtained from homopolymers and random copolymers. This tensile characteristic of foams was in coherence with the DMA analysis.}, number={27}, journal={Industrial & Engineering Chemistry Research}, publisher={American Chemical Society (ACS)}, author={Banerjee, Debjyoti and Dutta, Anindya and Vimal, Kakkarakkal Kottiyath and Kapur, Gurpreet Singh and Ghosh, Anup K.}, year={2019}, month={Jul}, pages={12054–12065} }
 @misc{polypropylene composites and method for preparation thereof_2019, year={2019}, month={Jun} }
 @article{qu_he_patil_wang_banerjee_gao_2019, title={Screen Printing of Graphene Oxide Patterns onto Viscose Nonwovens with Tunable Penetration Depth and Electrical Conductivity}, volume={11}, ISSN={["1944-8252"]}, url={http://dx.doi.org/10.1021/acsami.9b00715}, DOI={10.1021/acsami.9b00715}, abstractNote={Graphene-based e-textiles have attracted great interest because of their promising applications in sensing, protection, and wearable electronics. Here, we report a scalable screen-printing process along with continuous pad-dry-cure treatment for the creation of durable graphene oxide (GO) patterns onto viscose nonwoven fabrics at controllable penetration depth. All the printed nonwovens show lower sheet resistances (1.2-6.8 kΩ/sq) at a comparable loading, as those reported in the literature, and good washfastness, which is attributed to the chemical cross-linking applied between reduced GO (rGO) flakes and viscose fibers. This is the first demonstration of tunable penetration depth of GO in textile matrices, wherein GO is also simultaneously converted to rGO and cross-linked with viscose fibers in our processes. We have further demonstrated the potential applications of these nonwoven fabrics as physical sensors for compression and bending.}, number={16}, journal={ACS APPLIED MATERIALS & INTERFACES}, publisher={American Chemical Society (ACS)}, author={Qu, Jiangang and He, Nanfei and Patil, Shradha V. and Wang, Yanan and Banerjee, Debjyoti and Gao, Wei}, year={2019}, month={Apr}, pages={14944–14951} }
 @book{life cycle study of flex banner and its impact on the environment_2018, url={https://rgdoi.net/10.13140/RG.2.2.20105.19044/1}, DOI={10.13140/RG.2.2.20105.19044/1}, journal={Indian Institute of Technology Delhi}, year={2018} }