Results 11 to 20 of about 114,109 (274)

Comprehensive Study on Thermal and Dynamic Mechanical Behavior of PET/PEN Blends [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
The effects of interchange reactions on the crystallization, melting, and dynamic mechanical thermal behavior of poly(ethylene terephthalate)/poly(ethylene naphthalate) (PET/PEN) blends prepared by melt mixing have been investigated.
Hossien Ali Khonakdar
doaj   +1 more source

Sourcing thermotolerant poly(ethylene terephthalate) hydrolase scaffolds from natural diversity

open access: yesNature Communications, 2022
Enzymatic deconstruction of poly(ethylene terephthalate) (PET) is under intense investigation, given the ability of hydrolase enzymes to depolymerize PET to its constituent monomers near the polymer glass transition temperature.
E. Erickson   +20 more
semanticscholar   +1 more source

Obtaining phthalate substituted post-consumer polyethylene terephthalate and its isothermal crystallization

open access: yesТонкие химические технологии, 2022
Objects. Due to the polymer waste accumulation, the search for new directions for their utilization is urgent. Chemical recycling methods are of considerable interest, which allow one to obtain the original monomers or change the compositions of the ...
K. A. Kirshanov   +3 more
doaj   +1 more source

Upcycling of poly(ethylene terephthalate) to produce high-value bio-products.

open access: yesCell Reports, 2022
More than 70 million tons of poly(ethylene terephthalate) (PET) are manufactured worldwide every year. The accumulation of PET waste has become a global pollution concern, motivating the urgent development of technologies to valorize post-consumer PET ...
Jinjin Diao   +4 more
semanticscholar   +1 more source

Effect of Reprocessing on the Crystallization of Different Polyesters

open access: yesActa Technica Jaurinensis, 2023
The changes in crystallization characteristics of four polyesters were investigated during multiple processing. Two of these were petroleum-based materials: poly (ethylene terephthalate) (PET) and poly (butylene terephthalate) (PBT), and two were bio ...
Zoubeida Taha Taha   +2 more
doaj   +1 more source

Application of reactive siloxane prepolymers for the synthesis of thermoplastic poly(ester-siloxane)s and poly(ester-ether-siloxane)s [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
Thermoplastic poly(ester-siloxane)s (TPES) and poly(ester-ether-siloxane) s, (TPEES), based on poly(butylene terephthalate) (PBT) as the hard segment and different siloxane-prepolymers as the soft segments, were prepared.
Antić Vesna V.   +2 more
doaj   +3 more sources

Tandem chemical deconstruction and biological upcycling of poly(ethylene terephthalate) to β-ketoadipic acid by Pseudomonas putida KT2440.

open access: yesMetabolic Engineering, 2021
Poly(ethylene terephthalate) (PET) is the most abundantly consumed synthetic polyester and accordingly a major source of plastic waste. The development of chemocatalytic approaches for PET depolymerization to monomers offers new options for open-loop ...
Allison Z. Werner   +15 more
semanticscholar   +1 more source

A marine bacterial community capable of degrading poly(ethylene terephthalate) and polyethylene.

open access: yesJournal of Hazardous Materials, 2021
Plastic wastes are becoming the most common form of marine debris and present a growing global pollution problem. Here, we used a screening approach on hundreds of plastic waste-associated samples and discovered a marine bacterial community capable of ...
Rongrong Gao, Chaomin Sun
semanticscholar   +1 more source

Kinetic Studies of Poly(ethylene terephthalate) Aminolysis Process without Catalyst [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2020
Hypothesis: Chemical recycling of poly(ethylene terephthalate) bottle waste and production of value-added materials are the most appropriate ways in accordance with the principles of sustainable development and environmental protection.
Hossein Bouhendi   +3 more
doaj   +1 more source

Techno-economic, life-cycle, and socioeconomic impact analysis of enzymatic recycling of poly(ethylene terephthalate)

open access: yes, 2021
Summary Esterases have emerged as important biocatalysts for enzyme-based polyester recycling of poly(ethylene terephthalate) (PET) to terephthalic acid (TPA) and ethylene glycol (EG).
Avantika Singh   +14 more
semanticscholar   +1 more source

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