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Catenane Crosslinked Mechanically Adaptive Polymer Gel
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-08-10 , DOI: 10.1002/marc.201700361 Hao Xing 1 , Zhengtao Li 1 , Zi Liang Wu 2 , Feihe Huang 1
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-08-10 , DOI: 10.1002/marc.201700361 Hao Xing 1 , Zhengtao Li 1 , Zi Liang Wu 2 , Feihe Huang 1
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A new strategy is introduced to prepare an adaptive polymer gel that has a unique adaptability in response to environmental stimuli. This gel is prepared by the thiol‐ene “click” reaction between a bisvinyl [2]catenane and a poly(ethylene glycol) derivative containing multiple thiol groups. The catenane crosslinker is responsive to external stimuli due to the existence of intercomponent hydrogen bonding (IHB). The strong IHB restricts the rotation and movement of the crosslinker, giving it a rigid feature; however, the crosslinker becomes flexible when the IHB is destroyed. In consequence, the resulting gel can be reversibly switched between tough and soft states under stimulations.
中文翻译：
链烯交联的机械适应性聚合物凝胶
引入了一种新的策略来制备自适应聚合物凝胶，该凝胶对环境刺激具有独特的适应性。该凝胶是通过双乙烯基[2]环戊烷与含有多个硫醇基团的聚（乙二醇）衍生物之间的硫醇-“点击”反应制备的。由于组分间氢键（IHB）的存在，链烷交联剂对外部刺激有反应。强健的IHB限制了交联剂的旋转和运动，使其具有刚性。但是，当IHB被破坏时，交联剂就会变得柔软。结果，在刺激下，所得到的凝胶可以在坚硬状态和柔软状态之间可逆地切换。
更新日期：2017-08-10
中文翻译：
链烯交联的机械适应性聚合物凝胶
引入了一种新的策略来制备自适应聚合物凝胶，该凝胶对环境刺激具有独特的适应性。该凝胶是通过双乙烯基[2]环戊烷与含有多个硫醇基团的聚（乙二醇）衍生物之间的硫醇-“点击”反应制备的。由于组分间氢键（IHB）的存在，链烷交联剂对外部刺激有反应。强健的IHB限制了交联剂的旋转和运动，使其具有刚性。但是，当IHB被破坏时，交联剂就会变得柔软。结果，在刺激下，所得到的凝胶可以在坚硬状态和柔软状态之间可逆地切换。
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