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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis of Poly(cyclooctene) by Ring-Opening Metathesis Polymerization: Characterization and Shape Memory Properties
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Synthesis of Poly(cyclooctene) by Ring-Opening Metathesis Polymerization: Characterization and Shape Memory Properties

机译：开环复分解聚合法合成聚环辛烯的表征和形状记忆性能

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摘要

Cis-cyclooctene was polymerized via ringopening metathesis polymerization using a well-defined ruthenium catalyst (Grubbs’ type) under varying reaction conditions. Control over molecular weight was achieved by the inclusion of a chain transfer agent and its influence on the behavior of the obtained polymers was evaluated. The resulting polymers were characterized by means of differential scanning calorimetry, thermogravimetric analysis, and dynamic mechanical thermal analysis. Taking into account their thermal behavior, samples of appropriate molecular weight were subjected to a suitable treatment by chemical crosslinking to obtain a material showing thermally induced shape memory effect. The material recovers its original shape after several cycles of deformation into different shapes.
机译：通过使用明确定义的钌催化剂（Grubbs型）在不同的反应条件下通过开环易位聚合反应来聚合顺式环辛烯。通过包含链转移剂来实现对分子量的控制，并评估了其对所得聚合物的行为的影响。所得聚合物通过差示扫描量热法，热重分析和动态机械热分析来表征。考虑到它们的热行为，通过化学交联对适当分子量的样品进行适当处理，以获得显示出热致形状记忆效应的材料。经过数次变形为不同形状的材料后，材料恢复了其原始形状。

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