Activity
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Warm welcome to Prof. Debashis Roy, who has recently joined Chemical Engineering, IISc as an Assistant Professor. Prof. Roy completed his B.Tech -…
Warm welcome to Prof. Debashis Roy, who has recently joined Chemical Engineering, IISc as an Assistant Professor. Prof. Roy completed his B.Tech -…
Liked by Akanksha Patel
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We’re back at our favorite show of the year! Come to booth 121 to tell us about your materials needs and pick up some of our samples!
We’re back at our favorite show of the year! Come to booth 121 to tell us about your materials needs and pick up some of our samples!
Liked by Akanksha Patel
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If you have any questions on this excellent funding opportunity to accelerate your research in sustainable chemistry, please contact me. Our…
If you have any questions on this excellent funding opportunity to accelerate your research in sustainable chemistry, please contact me. Our…
Liked by Akanksha Patel
Publications
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Aqueous buffer solution-induced crystallization competes with enzymatic depolymerization of pre-treated post-consumer poly (ethylene terephthalate) waste
Elsevier
See publicationThe complex relationship between kinetics and substrate morphology during enzymatic depolymerization of melt processed poly(ethylene terephthalate) (PET) is explored and the effects of competing transformations are analyzed. Extruded PET substrates from post-consumer recycled PET (RPET) bottles flakes subjected to enzymatic depolymerization are examined to reveal increases in crystallinity from ∼10% post-extrusion to > 30% after 3 days of depolymerization as well as increases in glass…
The complex relationship between kinetics and substrate morphology during enzymatic depolymerization of melt processed poly(ethylene terephthalate) (PET) is explored and the effects of competing transformations are analyzed. Extruded PET substrates from post-consumer recycled PET (RPET) bottles flakes subjected to enzymatic depolymerization are examined to reveal increases in crystallinity from ∼10% post-extrusion to > 30% after 3 days of depolymerization as well as increases in glass transition temperature (Tg) from ∼66 °C to > 80 °C. Further investigation into this behavior shows that post-extrusion RPET substrates do not exhibit changes in crystallinity when subjected to dry annealing at 65 °C in an oven over 7 days, but they do experience annealing in depolymerization buffer solution with no enzymes at 65 °C within 3 days. This difference may be attributed to plasticization of PET in the presence of water, also known as solvent induced crystallization. The impact of this plasticized annealing behavior is demonstrated by subjecting RPET substrates to increasing enzyme-to-substrate loads. As enzyme load increases, overall conversion of substrates increases despite crystallinity also increasing to similar levels regardless of the initial enzyme loading. The competition between depolymerization and crystallization suggests that the rate at which PET substrates are depolymerized at the operational temperature is integral to achieving high conversion to monomeric product. This, in turn, also suggests that savings from lowered enzyme loadings may be more detrimental than helpful in pursuing the most cost-effective recycling systems.
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Melt Processing Pretreatment Effects on Enzymatic Depolymerization of Poly(ethylene terephthalate)
ACS Sustainable Chem. Eng. 2022
Patents
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GREEN MANUFACTURING PROCESS OF NANOLIGNIN
Filed IN 201911039238
Organizations
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Polymer Engineering Graduate Organization (PEGO-UML)
Secretory
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UML Graduate Student Association
Treasurer
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UML Indian Student Association
President
-Elected as the president of UML Indian Student Association. •Organized cultural events, campus events, and student orientations •Initiated new social media platforms for ISA •Provided first-hand guidance to the incoming students
More activity by Akanksha
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We have started a two-week IOCL-sponsored CEP program on Polymer Science and Technology for IOCL executives. The program was jointly inaugurated by…
We have started a two-week IOCL-sponsored CEP program on Polymer Science and Technology for IOCL executives. The program was jointly inaugurated by…
Liked by Akanksha Patel
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Congratulations Akanksha Patel for being recognised as one of the Women Breaking the Mold in the plastic University. We all are proud of you. Best…
Congratulations Akanksha Patel for being recognised as one of the Women Breaking the Mold in the plastic University. We all are proud of you. Best…
Liked by Akanksha Patel
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A big thanks to everyone who came out to see us at last week’s previewinseoul KOFOTI conference! Our team was busy, showing off our advanced…
A big thanks to everyone who came out to see us at last week’s previewinseoul KOFOTI conference! Our team was busy, showing off our advanced…
Liked by Akanksha Patel
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Thank you to all the amazing participants at this workshop that were thrilled to learn more and more about these useful tools to design greener…
Thank you to all the amazing participants at this workshop that were thrilled to learn more and more about these useful tools to design greener…
Liked by Akanksha Patel
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[5/100] Interesting enought, recycling, or in a narrow sense, the mechanical recyling, is never a way Nature uses for the circularity. Nature makes…
[5/100] Interesting enought, recycling, or in a narrow sense, the mechanical recyling, is never a way Nature uses for the circularity. Nature makes…
Liked by Akanksha Patel
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Oral communication is one of the most important skills in any profession, in particular, academia. Invest in ways to improve it. Answering questions…
Oral communication is one of the most important skills in any profession, in particular, academia. Invest in ways to improve it. Answering questions…
Liked by Akanksha Patel
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Tools have brought us here, intelligence will bring us to a harmonized and sustainable future.
Tools have brought us here, intelligence will bring us to a harmonized and sustainable future.
Liked by Akanksha Patel
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Hey buddy, please join to Green Chemistry for Sustainability platform to connect people and resources globally to accelerate research, innovation…
Hey buddy, please join to Green Chemistry for Sustainability platform to connect people and resources globally to accelerate research, innovation…
Liked by Akanksha Patel
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A journey starts on August 21st, 2024!
A journey starts on August 21st, 2024!
Liked by Akanksha Patel
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Next Week at the ACS National Meeting in Denver, The Natural Polymer Consortium will have a first session to discuss sustainable material innovation…
Next Week at the ACS National Meeting in Denver, The Natural Polymer Consortium will have a first session to discuss sustainable material innovation…
Liked by Akanksha Patel
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Get ready! With less than one month to go, the excitement is building for the Bioplastics event in Cincinnati, OH, USA on September 17-18…
Get ready! With less than one month to go, the excitement is building for the Bioplastics event in Cincinnati, OH, USA on September 17-18…
Liked by Akanksha Patel
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