writer：Sheng Wang, Songqi Ma,* Jianfan Qiu, Anping Tian, Qiong Li, Xiwei Xu, Binbo Wang, Na
keywords：Plastics, covalent adaptable networks, thermosets, vitrimers, upcycling
source：期刊
specific source：Green Chemistry
Issue time：2021年

The huge amount of plastic waste is imperiling our daily life. Here, we designed a green and efficient large-scale one-pot method combining grafting and reversible cross-linking on a twin screw extruder. Post-consumer plastic bags were upcycled to covalent adaptable network (CAN) based on internally catalyzed anhydride monoesters transesterification, superior performance and reprocessability at elevated temperatures were achieved. This work provides a new idea for upcycling post-consumer polyolefin plastics, and the produced materials show great potential to be used in industrial scale.

论文链接：Upcycling of post-consumer polyolefin plastics to covalent adaptable networks via in situ continuous extrusion cross-linking - Green Chemistry (RSC Publishing)