Chemical recycling of poly(butylene terephthalate) into value-added biodegradable poly(butylene adipate-<i>co</i>-terephthalate)

Yan, Xiangxiang; Huang, Shujie; Huan, Jie; Li, Jing; Li, Xiaohong; Wang, Sheng; Li, Hongjuan; Guo, Xuehua; Ren, Jun; Tu, Yingfeng

doi:10.1039/d4py00068d

Polym. Chem.

2024

DOI: 10.1039/d4py00068d

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Chemical recycling of poly(butylene terephthalate) into value-added biodegradable poly(butylene adipate-co-terephthalate)

Xiangxiang Yan,

Shujie Huang,

Jie Huan

et al.

Abstract: We present here a high value-added strategy for the chemical recycling of engineering plastic poly(butylene terephthalate) (PBT) into biodegradable poly(butylene adipate-co-terephthalate) (PBAT) copolyesters. Cyclodepolymerization of postconsumer PBT in dilute solutions...

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Cited by 2 publications

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Incorporation of lactyl unit to PBAT for enhanced gas barrier property and biodegradability by direct polycondensation via alcoholysis of cyclic anhydride with lactic acid

Liu,

Yang

et al. 2024

Polymer

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Incorporation of lactyl unit to PBAT for enhanced gas barrier property and biodegradability by direct polycondensation via alcoholysis of cyclic anhydride with lactic acid

Liu,

Yang

et al. 2024

Polymer

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Main-Chain Azobenzene Poly(ether ester) Multiblock Copolymers for Strong and Tough Light-Driven Actuators

He,

Xiao,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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The stimulus-responsive polymeric materials have attracted great research interest, especially those remotely manipulated materials with potential applications in actuators and soft robotics. Here we report a photoresponsive main-chain actuator based on azobenzene poly(ether ester) multiblock copolymer (mBCP) thermoplastic elastomers, (PTAD-b-PTMOb-PTAD) n , which were synthesized by a cascade polycondensationcoupling ring-opening polymerization method using poly-(tetramethylene oxide) (PTMO) and azobenzene-containing cyclic oligoesters (COTADs) as monomers. The thermal, mechanical, and microphase separation behaviors of mBCPs could be flexibly tuned by altering the ratios of soft-to-hard segments and block number (n). The oriented azobenzene mBCP fibers were prepared by melt spinning, showing reversible photoresponsive properties with remarkably high strength (∼1000 MPa) and high elongation at break comparable to spider silks. Fast photoinduced bending and contraction were successfully achieved in these fibers with high work and power densities and energy conversion efficiency, enabling it to lift up about 250 times of its own weight. Moreover, it can take out materials inside the tube by UV-light control. These fibers could be applied in light-driven actuators or telecontrolled robot arms.

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Chemical recycling of poly(butylene terephthalate) into value-added biodegradable poly(butylene adipate-co-terephthalate)

Abstract: We present here a high value-added strategy for the chemical recycling of engineering plastic poly(butylene terephthalate) (PBT) into biodegradable poly(butylene adipate-co-terephthalate) (PBAT) copolyesters. Cyclodepolymerization of postconsumer PBT in dilute solutions...

Cited by 2 publications

References 61 publications

Incorporation of lactyl unit to PBAT for enhanced gas barrier property and biodegradability by direct polycondensation via alcoholysis of cyclic anhydride with lactic acid

Incorporation of lactyl unit to PBAT for enhanced gas barrier property and biodegradability by direct polycondensation via alcoholysis of cyclic anhydride with lactic acid

Main-Chain Azobenzene Poly(ether ester) Multiblock Copolymers for Strong and Tough Light-Driven Actuators

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