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1. Poly(trimethylene monothiocarbonate) from the Alternating Copolymerization of COS and Oxetane: A Semicrystalline Copolymer.

Author

Hai-Lin Wu, Jia-Liang Yang, Ming Luo, Rui-Yang Wang, Jun-Ting Xu, Bin-Yang Du, Xing-Hong Zhang, and Darensbourg, Donald J.

Subjects
*COPOLYMERIZATION, *CYCLOPROPANE, *CRYSTALLINE polymers, *PHOSGENE, *TEMPERATURE effect, *CRYSTALLIZATION
Abstract

A semicrystalline poly(trimethylene monothiocarbonate) (PTMMTC) has been synthesized via the selective and alternating copolymerization of carbonyl sulfide and oxetane. This reaction was catalyzed by (salen)CrCl accompanied by organic bases over a wide range of temperatures from 40 to 130 °C. PTMMTC is shown to exhibit similar crystallization behavior to high-density polyethylene (HDPE), i.e., being spherulite and possessing melting temperatures (Tm) up to 127.5 °C and a degree of crystallinity (Xc) of up to 71%. Moreover, PTMMTC has a wide processing temperature window of ca. 100 °C. [ABSTRACT FROM AUTHOR]

Published
2016
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