Effects of solvent, casting temperature, and guest/host stoichiometries on the properties of shape memory material based on partial α-CD-PEG inclusion complex
Effects of solvent, casting temperature, and guest/host stoichiometries on the properties of shape memory material based on partial α-CD-PEG inclusion complex
复制标题
DOI：
10.1002/polb.21982
复制
发表时间：
2010-05
期刊：
影响因子：
--
通讯作者：
Zhijun Yu;Yan Liu;Minmin Fan;Xianwei Meng;Bang‐Jing Li;S. Zhang
中科院分区：
文献类型：
--
作者：
Zhijun Yu;Yan Liu;Minmin Fan;Xianwei Meng;Bang‐Jing Li;S. Zhang
将α-环糊精（alpha-CD）分子按一定比例与聚乙二醇（PEG）交联，制备了一系列超分子包合物（IC）膜。由于含有作为物理交联的α-CD-PEG包合物微晶和作为“开关相”的未被包合的PEG微晶，所得到的超分子α-CD-PEG部分IC显示出形状记忆效应。通过核磁共振氢谱、X射线衍射、差示扫描量热、动态力学分析和溶胀测试等手段对材料的性能进行了研究。结果表明，流延温度、溶剂、α-CD-PEG包合物/PEG的比例对α-CD-PEG部分离子交换膜的形成和性能有很大影响。提出了不同条件下的配合物模式。(C)2010 Wiley Periodicals，Inc.聚合物科学杂志B部分：聚合物物理48：951-957，2010年
A series of supramolecular inclusion complex (IC) films were formed by threading alpha-cyclodextrin (alpha-CD) molecules over poly(ethylene glycol) (PEG), according to the designed ratio of alpha-CD/PEG. Because of containing alpha-CD-PEG inclusion crystallites as physical crosslinks and uncovered PEG crystallites as "switch phase", the resulting supramolecular alpha-CD-PEG partial ICs displayed a shape memory effect. The properties of the materials were investigated by H-1-NMR, X-ray diffraction (XRD), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), and swelling measurement. It was found that the casting temperature, solvent, and the ratio of alpha-CD-PEG inclusion/PEG had great influence on the formation and properties of alpha-CD-PEG partial ICs. The modes of complexes on different conditions were proposed. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 951-957, 2010