Synthesis and Characterization of Long-chain Branched Isotactic-rich Polystyrenes via Cationic Polym

来源 :Sixth International Symposium On Engineering Plastics (第六届工程 | 被引量 : 0次 | 上传用户：jxpyq

【摘要】

：

【作者】

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Beite Li Wenhong Liu Hong Cheng Yixian Wu

【机构】

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State Key Laboratory of Chemical Resource Engineering,Key Laboratory of Carbon Fiber and Functional

【出处】

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Sixth International Symposium On Engineering Plastics (第六届工程

【发表日期】

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2013年11期

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The kinetics for cationic polymerization of styrene coinitiated by AlCl3 at-80 ℃ was investigated by in-situ ATR-FTIR spectroscopy.The stereospecific cationic polymerization of styrene or p-methylstyrene could be achieved and high molecular weight polymers with isotactic-rich segments (≥ 75％ of meso dyad) along macromolecular chains could be successfully synthesized.Some crystalline regions in iPS formed after flow-induced crystallization and the crystallinity increased with increasing molecular weight of polymers.

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Synthesis and Characterization of Long-chain Branched Isotactic-rich Polystyrenes via Cationic Polym

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