Crystalline and Elastomeric Poly(monothiocarbonate)s Prepared from Copolymerization of COS and Achiral Epoxide
作者： Wei-Min Ren , Tian-Jun Yue , Ming-Ran Li , Zhao-Qian Wan , Xiao-Bing Lu
DOI: 10.1021/ACS.MACROMOL.6B02089
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摘要: The semicrystalline poly(monothiocarbonate)s were prepared by the copolymerization of carbonyl sulfide (COS) and ethylene oxide, an achiral epoxide, using a bifunctional chromium(III) complex as catalyst. resultant copolymer, possessing perfectly alternating structure, high molecular weight, narrow polydispersity, has melting temperature 128.2 °C, with enthalpy up to 75.44 J/g. Moreover, ABA triblock copolymer containing “hard” poly(ethylene monothiocarbonate) (A) “soft” amorphous poly(propylene (B) is synthesized stepwise addition epoxides. tensile testing demonstrates may have potential thermoplastic elastomer.
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