a.Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
b.Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Divisions of Polymers and Composites, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
c.University of Chinese Academy of Sciences, Beijing 100049, China
songqi.ma@jiangnan.edu.cn or msqhyd@126.com
收稿:2024-04-30,
修回:2024-06-01,
录用:2024-06-03,
网络首发:2024-08-27,
纸质出版:2024-10-01
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Wang, B. B.; Huang, R.; Wang, X.; Jiang, T.; Wang, Y.; Du, S.; Li, F. L.; Zhu, J.; Ma, S. Q. Upcycling of poly(butylene adipate-co-terephthalate) into dual covalent adaptable networks through chain breaking-crosslinking strategy. Chinese J. Polym. Sci. 2024, 42, 1505–1513
Bin-Bo Wang, Rong Huang, Xin Wang, et al. Upcycling of Poly(butylene adipate-
Wang, B. B.; Huang, R.; Wang, X.; Jiang, T.; Wang, Y.; Du, S.; Li, F. L.; Zhu, J.; Ma, S. Q. Upcycling of poly(butylene adipate-co-terephthalate) into dual covalent adaptable networks through chain breaking-crosslinking strategy. Chinese J. Polym. Sci. 2024, 42, 1505–1513 DOI: 10.1007/s10118-024-3179-4.
Bin-Bo Wang, Rong Huang, Xin Wang, et al. Upcycling of Poly(butylene adipate-
Poly(butylene adipate-
co
-terephthalate) was efficiently upcycled into performance-enhanced dual covalent adaptable networks via chain breaking-crosslinking strategy while maintaining degradability and processability.
Poly(butylene adipate-
co
-terephthalate) (PBAT)
a widely studied biodegradable material
has not effectively addressed the problem of plastic waste. Taking into consideration the cost-effectiveness
upcycling PBAT should take precedence over direct composting degradation. The present work adopts a chain breaking-crosslinking strategy
upcycling PBAT into dual covalent adaptable networks (CANs). During the chain-breaking stage
the ammonolysis between PBAT and polyethyleneimine (PEI) established the primary crosslinked network. Subsequently
styrene maleic anhydride copolymer (SMA) reacted with the hydroxyl group
culminating in the formation of dual covalent adaptable networks. In contrast to PBAT
the PBAT-dual-CANs exhibited a
notable Young's modulus of 239 MPa
alongside an inherent resistance to creep and solvents. Owing to catalysis from neighboring carboxyl group and excess hydroxyl groups
the PBAT-dual-CANs exhibited fast stress relaxation. Additionally
they could be recycled through extrusion and hot-press reprocessing
while retaining their biodegradability. This straightforward strategy offers a solution for dealing with plastic waste.
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