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首页> 外文期刊>Journal of Materials Chemistry, A. Materials for energy and sustainability >New stimulus-responsive shape-memory polyurethanes capable of UV light-triggered deformation, hydrogen bond-mediated fixation, and thermal-induced recovery
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New stimulus-responsive shape-memory polyurethanes capable of UV light-triggered deformation, hydrogen bond-mediated fixation, and thermal-induced recovery

机译：能够UV光触发变形，氢键介导的固定和热诱导的回收的新型刺激响应形状记忆聚氨酯

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摘要

Shape-memory polymers (SMPs) have been rapidly developed in recent decades because they can be fixed in deformed shapes and their original shapes can be recovered by applying an external stimulus. There is an urgent need for SMPs that can deform spontaneously upon an external stimulus. Light acts as a remote and clean stimulus for inducing changes in shape, but light-based deformations cannot be fixed under ambient conditions. Here, we report a novel stimulus-responsive SMP that is capable of shape deformation under UV light and shape fixation in visible light. Finally, the original shape is recovered at higher temperature. This work expands the current understanding of the inherent staging-responsive features in both light-and thermal-induced SMPs, illuminating a new mechanism of staging-responsive shape-memory effects.
机译：近几十年来，形状记忆聚合物（SMPs）已迅速发展，因为它们可以固定在变形的形状中，并且可以通过施加外部刺激来恢复它们的原始形状。 迫切需要可以在外部刺激上自发地变形的SMP。 光作为遥控和清洁刺激，以诱导形状的变化，但在环境条件下不能固定光线变形。 这里，我们报告了一种新型刺激响应性SMP，其能够在可见光下以UV光和形状固定形状变形。 最后，在较高温度下恢复原始形状。 这项工作扩展了目前对光线和热诱导的SMPS中固有的持续响应功能的了解，照亮了响应形状记忆效应的新机制。

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    Ban Jianfeng; Mu Luona; Yang Jinghao; Chen Shaojun; Zhuo Haitao;

  • 作者单位

    Shenzhen Univ Guangdong Res Ctr Interfacial Engn Funct Mat Nanshan Dist Key Lab Biopolymers &

    Safety Evaluat Coll Mat Sci &

    Engn Shenzhen Key Lab Polymer Sci Shenzhen 518060 Peoples R China;

    Shenzhen Univ Guangdong Res Ctr Interfacial Engn Funct Mat Nanshan Dist Key Lab Biopolymers &

    Safety Evaluat Coll Mat Sci &

    Engn Shenzhen Key Lab Polymer Sci Shenzhen 518060 Peoples R China;

    Shenzhen Univ Guangdong Res Ctr Interfacial Engn Funct Mat Nanshan Dist Key Lab Biopolymers &

    Safety Evaluat Coll Mat Sci &

    Engn Shenzhen Key Lab Polymer Sci Shenzhen 518060 Peoples R China;

    Shenzhen Univ Guangdong Res Ctr Interfacial Engn Funct Mat Nanshan Dist Key Lab Biopolymers &

    Safety Evaluat Coll Mat Sci &

    Engn Shenzhen Key Lab Polymer Sci Shenzhen 518060 Peoples R China;

    Shenzhen Univ Coll Chem &

    Environm Engn Shenzhen Key Lab Funct Polymer Shenzhen 518060 Peoples R China;

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  • 正文语种 eng
  • 中图分类 工程材料学;
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