“Arm-first” approach for the synthesis of star-shaped stereoregular polymers through living coordination polymerization

文献情報

出版日 2017-01-31

DOI 10.1039/C6PY02097F

インパクトファクター 5.582

著者

Zhenghai Shi, Fang Guo, Rui Tan, Hui Niu, Tingting Li, Yang Li

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要旨

The synthesis of stereoregular star polymers, including star cis-1,4-PB, star cis-1,4-PB-ran-3,4-PI and star cis-1,4-PB-b-syn-PS, through an “arm-first” approach via a living coordination polymerization mechanism is reported in this work for the first time. The half-sandwich scandium catalyst (C5Me4SiMe3)Sc(CH2SiMe3)2(THF) activated with [Ph3C][B(C6F5)4] is used herein. Star cis-1,4-PB compounds with various arm lengths and arm numbers ranging from 1.0 × 104 to 6.5 × 104 g mol−1 and 7.6 to 26.4, respectively, are produced by tuning the polymerization parameters. Additionally, the stereoregular star cis-1,4-PB-ran-3,4-PI and star cis-1,4-PB-b-syn-PS are also explored in the same way with average arm numbers of 21.4 and 16.5 and 35% and 41% star yield, respectively.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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“Arm-first” approach for the synthesis of star-shaped stereoregular polymers through living coordination polymerization

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