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首页> 外文会议>International symposium on polymer physics : Preprints >FTIR STUDY OF HYDROGEN BONDING AND CRYSTALLIZATION BEHAVIOR OF BIODEGRADABLE MULTIBLOCK POLY(ESTER URETHANE) COPOLYMER
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FTIR STUDY OF HYDROGEN BONDING AND CRYSTALLIZATION BEHAVIOR OF BIODEGRADABLE MULTIBLOCK POLY(ESTER URETHANE) COPOLYMER

机译：可生物降解的多嵌段多（酯）乙烷共聚物的氢键键合和结晶行为的FTIR研究

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摘要

@@Shape-memory polymers (SMPs) are a kind of materials that are able to remember and recover their permanent shapes in certain condition after shape deformation.1,2 Recently SMPs have attracted great attention from researchers because they are able to remember two shapes at different conditions, thus having great potential in applications such as smart fabrics, intelligent medical devices, implants for minimally invasive surgery. Generally SMP consists of two components, cross-linkages (hard segments) that determine the permanent shape, and switching segments (soft segment) fixing the temporary shape at temperatures below the transition temperature (Ttrans) which is either the glass transition or the melting temperature of the switching segments. An important class of thermoplastic shape memory polymers are segmented polyurethanes1,2, which are multi-block copolymers of the type (AB)n composed of alternating soft and hard segments along the molecular chain. The hard segments are based on diisocynates and diols, while the soft segments are polyester glycol blocks. In the transitions and crystallization of segmented polyurethanes hydrogen bonding often plays an important role, and FTIR thermal analysis is commonly used to study the hydrogen bonding and crystallization of polyurethane and their copolymers3,4.
机译：@@形状记忆聚合物（SMP）是一种能够在形状变形后在一定条件下记住并恢复其永久形状的材料。1,2最近，SMP由于能够记住两种形状而受到了研究人员的极大关注。在不同的条件下，因此在智能织物，智能医疗设备，微创手术植入物等应用中具有巨大潜力。通常，SMP由两个部分组成：确定永久形状的交联（硬链段）和在低于玻璃化转变温度或熔融温度的转变温度（Ttrans）以下的温度下固定临时形状的转换链段（软链段）的交换段。热塑性形状记忆聚合物的重要一类是嵌段聚氨酯1，2，它们是（AB）n型的多嵌段共聚物，由沿着分子链的交替的软链段和硬链段组成。硬链段是基于二异氰酸酯和二醇，而软链段是聚酯二醇嵌段。在嵌段聚氨酯的转变和结晶中，氢键通常起着重要的作用，FTIR热分析通常用于研究聚氨酯及其共聚物3,4的氢键和结晶。

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  • 来源
  • 会议地点 Xiamen(CN);Xiamen(CN)
  • 作者

    Wei Wang; Wenshou Wang; Xuesi Chen; Xiabin Jing; Zhaohui Su;

  • 作者单位

    State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,P.R.China;

    State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,P.R.China;

    State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,P.R.China;

    State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,P.R.China;

    State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,Jilin 130022,P.R.China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化学（高聚物）;
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