A Tri-Stimuli-Responsive Shape-Memory Material Using Host-Guest Interactions as Molecular Switches
A Tri-Stimuli-Responsive Shape-Memory Material Using Host-Guest Interactions as Molecular Switches
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利用主客体相互作用作为分子开关的三刺激响应形状记忆材料
DOI：
10.1002/marc.201500602
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发表时间：
2016
影响因子：
4.6
通讯作者：
Li Bang-Jing
中科院分区：
文献类型：
--
作者：
Pan Min;Yuan Qi-Juan;Gong Xiao-Lei;Zhang Sheng;Li Bang-Jing
将α-环糊精(α-CD)和偶氮苯(AZO)引入到聚丙烯酸酯/海藻酸盐(PAA/Alg)网络中，成功地制备了一种具有热、光和化学响应的形状记忆材料。αCD-偶氮分子的三刺激响应性形成/解离作为分子开关冻结或增加分子迁移率。在此得到的薄膜可以根据需要加工成临时形状，并且在独立地施加光照射、加热或化学试剂时恢复其初始形状。琼脂扩散实验表明，α-CD-Alg/偶氮-聚丙交酯对L929成纤维样细胞具有良好的生物相容性。
A thermo‐, photo‐ and chemoresponsive shape‐memory material is successfully prepared by introducing α‐cyclodextrin (αCD) and azobenzene (Azo) into a poly(acrylate acid)/alginate (PAA/Alg) network. The tri‐stimuli‐responsive formation/dissociation of αCD‐Azo acts as molecular switches freezing or increasing the molecular mobility. The resulting film herein can be processed into temporary shapes as needed and recovers its initial shape upon the application of light irradiation, heating, or chemical agent independently. Furthermore, the agar diffusion test suggests that the α‐CD‐Alg/Azo‐PAA has good biocompatibility for L929 fibroblast‐like cells.