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Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202210154
Abstract: Here, low‐energy poly(ethylene terephthalate) (PET) chemical recycling in water: PET copolymers with diethyl 2,5‐dihydroxyterephthalate (DHTE) undergo selective hydrolysis at DHTE sites, autocatalyzed by neighboring group participation, is demonstrated. Liberated oligomeric subchains further hydrolyze until only…
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Keywords:
trojan horse;
water;
pet;
dihydroxyterephthalate trojan ... See more keywords
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Published in 2022 at "ChemPlusChem"
DOI: 10.1002/cplu.202200029
Abstract: Our previously published non-toxic guanidine carboxy Zn catalysts, suitable for lactide ring opening polymerisation (ROP) under industrially preferred melt conditions, have been tested towards the alcoholysis of renewable polyesters. A structure-reactivity relationship has been found…
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Keywords:
renewable polyesters;
complexes chemical;
zinc complexes;
carboxy zinc ... See more keywords
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Published in 2023 at "ChemSusChem"
DOI: 10.1002/cssc.202300192
Abstract: A new aliphatic hybridguanidine N,O-donor ligand (TMGeech) and its zinc chloride complex ([ZnCl2(TMGeech)]) are presented. This complex displays a high catalytic activity for the ring opening polymerization (ROP) of lactide in toluene, exceeding the toxic…
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Keywords:
catalyst;
zncl2 tmgeech;
economy;
chemical recycling ... See more keywords
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Published in 2022 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200538
Abstract: Carbon fiber reinforced polymer (CFRP) composites are indispensable in a variety of applications, because of their high specific strength. CFRPs are generally constructed by carbon fibers as reinforcements and crosslinked polymers as binders. Due to…
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Keywords:
fiber reinforced;
carbon;
carbon fiber;
progress chemical ... See more keywords
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Published in 2020 at "ChemistryOpen"
DOI: 10.1002/open.202000243
Abstract: Abstract The chemical recycling of poly(lactide) was investigated based on depolymerization and polymerization processes. Using methanol as depolymerization reagent and zinc salts as catalyst, poly(lactide) was depolymerized to methyl lactate applying microwave heating. An excellent…
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Keywords:
zinc;
poly lactide;
depolymerization polymerization;
chemical recycling ... See more keywords
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Published in 2019 at "Journal of Polymers and the Environment"
DOI: 10.1007/s10924-018-1347-8
Abstract: An efficient method for chemical recycling of bio-based polymers Poly(3-hydroxybutyrate) (PHB) wastes was established from the perspective of biorefinery. This methanolysis reaction archived successfully transformation PHB into corresponding monomer catalyzed by imidazolium-based Fe-containing ionic liquid,…
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Keywords:
ionic liquid;
liquid;
chemical recycling;
hydroxybutyrate ... See more keywords
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Published in 2021 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2020.116389
Abstract: Abstract As a consequence of the widespread use of polyethylene terephthalate (PET), huge amounts of PET waste are generated annually, and thus a critical point of waste management strategy is to reduce these amounts. This…
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Keywords:
polyethylene terephthalate;
chemical recycling;
waste;
pet waste ... See more keywords
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Published in 2021 at "European Polymer Journal"
DOI: 10.1016/j.eurpolymj.2021.110441
Abstract: Abstract A series of terephthalamides were successfully produced by rapid catalyst-free microwave-assisted aminolysis of polyethylene terephthalate (PET). The produced terephthalamides from chemical recycling of PET were further utilized as reactants for fabrication of plastic films…
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Keywords:
chemical recycling;
assisted recycling;
microwave assisted;
ultrafast microwave ... See more keywords
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Published in 2019 at "Journal of Analytical and Applied Pyrolysis"
DOI: 10.1016/j.jaap.2019.104706
Abstract: Abstract Whereas increasing plastic solid waste production constitutes one of the main challenges of modern society, mainly due to the lack of suitable recycling technologies, chemical recycling represents an attractive solution for the conversion of…
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Keywords:
crosslinked poly;
poly methyl;
methyl methacrylate;
chemical recycling ... See more keywords
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Published in 2020 at "Journal of Cleaner Production"
DOI: 10.1016/j.jclepro.2020.124785
Abstract: Abstract Concrete is one of the most widely used materials globally, and therefore huge amounts of concrete waste, which is usually strongly alkaline, are generated. Concrete waste recycling and use are essential to avoid negative…
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Keywords:
chemical recycling;
waste;
review;
recycling use ... See more keywords
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Published in 2018 at "Polymer Degradation and Stability"
DOI: 10.1016/j.polymdegradstab.2018.01.016
Abstract: Abstract The chemical recycling of PLA by hydrolysis in water-ethanol solutions at moderate temperatures was investigated and the kinetic parameters of the hydrolysis, rate constant and activation energy (Ea) were assessed. Hydrolysis experiments of PLA…
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Keywords:
water ethanol;
chemical recycling;
water;
pla ... See more keywords