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首页> 外文期刊>Journal of Polymer Research >Shape-memory behavior of poly (methyl methacrylate-co -N-vinyl-2- pyrrolidone) / poly (ethylene glycol) semi-interpenetrating polymer networks based on hydrogen bonding
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Shape-memory behavior of poly (methyl methacrylate-co -N-vinyl-2- pyrrolidone) / poly (ethylene glycol) semi-interpenetrating polymer networks based on hydrogen bonding

机译：基于氢键的聚甲基丙烯酸甲酯-共-N-乙烯基-2-吡咯烷酮/聚乙二醇半互穿聚合物网络的形状记忆行为

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摘要

Based on hydrogen bonding interactions, Poly(methyl methacrylate-co-N- vinyl-2-pynolidone) (P(MMA-co-VP)) networks and linear poly(ethylene glycol) (PEG) can form semi-interpenetrating polymer networks (semi-IPNs), i.e. P(MMA-co-VP)/PEG semi-IPNs, which has shape memory behaviour; its maximum storage modulus ratio can be more than 400, and its shape recovery ratio could reach 99%. The morphology, thermal behaviors and dynamic mechanical properties of P(MMA-co-VP)/PEG semi-IPNs were studied by FTIR, TEM, DSC and DMA. When PEG with higher molecular weight was introduced into P(MMA-co-VP) networks, they possess higher glassy state modulus and higher recovering rate. In such a system, the maximum molecular weight of PEG required for the semi-IPN formation reaches 1000.
机译：基于氢键相互作用，聚甲基丙烯酸甲酯-co-N-乙烯基-2-吡啶酮（P（MMA-co-VP））网络和线性聚乙二醇（PEG）可以形成半互穿聚合物网络（半IPN），即具有形状记忆行为的P（MMA-co-VP）/ PEG半IPN;最大储能模量比可达400以上，形状恢复率可达99％。通过FTIR，TEM，DSC和DMA研究了P（MMA-co-VP）/ PEG半IPNs的形貌，热行为和动态力学性能。当较高分子量的PEG引入P（MMA-co-VP）网络时，它们具有较高的玻璃态模量和较高的回收率。在这样的系统中，半IPN形成所需的PEG的最大分子量达到1000。

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