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A Facile Approach to Construct Novel Polyesters as Soft Midblock for Thermoplastic Elastomers.
Xia, Yun-Yun; Yang, Xing; Zhang, Wei; Fu, Yang; Cai, Zhongzheng; Cao, Peng; Zhu, Jian-Bo.
Afiliação
  • Xia YY; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, China.
  • Yang X; National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University.
  • Zhang W; Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, China.
  • Fu Y; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, China.
  • Cai Z; National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University.
  • Cao P; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, China.
  • Zhu JB; National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University.
Chemistry ; 30(51): e202401727, 2024 Sep 11.
Article em En | MEDLINE | ID: mdl-38979891
ABSTRACT
The development of innovative synthetic strategies to create functional polycaprolactones is highly demanded for advanced material applications. In this contribution, we reported a facile synthetic strategy to prepare a class of CL-based monomers (R-TO) derived from epoxides. They readily polymerize via well-controlled ring-opening polymerization (ROP) to afford a series of polyesters P(R-TO) with high molecular weight (Mn up to 350 kDa). Sequential addition copolymerization of MTO and L-lactide (L-LA) allowed to access of a series of ABA triblock copolymers with composition-dependent mechanical properties. Notably, P(L-LA)100-b-P(MTO)500-b-P(L-LA)100 containing the amorphous P(MTO) segment as a soft midblock and crystalline P(L-LA) domain as hard end block behaved as an excellent thermoplastic elastomer (TPE) with high elongation at break (1438±204 %), tensile strength (23.5±1.7 MPa), and outstanding elastic recovery (>88 %).
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2024 Tipo de documento: Article