Temperature and solvent-dependent morphological sol gel transformation: an in situ microscopic observation.
Temperature and solvent-dependent morphological sol gel transformation: an in situ microscopic observation.
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DOI：
10.1021/la904264u
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
Yaqun Huang;Fenglin Liao;Weiran Zheng;Xiulan Liu;Xiaojun Wu;Xinlin Hong;S. Tsang
中科院分区：
文献类型：
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作者：
Yaqun Huang;Fenglin Liao;Weiran Zheng;Xiulan Liu;Xiaojun Wu;Xinlin Hong;S. Tsang
本文首次用原位偏光显微镜、XRD、（1）HNMR、SEM、SAXRD、FTIR和液滴形状分析等手段，对烷基胺-乙二醇体系中从凝胶（纤维）到溶胶（囊泡）的热可逆自组装过程进行了监测。研究发现，溶剂分子与烷基胺分子发生插层反应，形成有机凝胶和囊泡结构。因此，提出了一个模型的基础上，这些烷基胺胶凝剂-溶剂组件的结构转换。
A thermoreversible self-assemble process from gel (fiber) to sol (vesicle) state in the system alkylamine-ethylene glycol is for the first time monitored by in situ polarized optical microscopy, XRD, (1)H NMR, SEM, SAXRD, FTIR and drop shape analysis. It is found that the solvent molecules are intercalated with alkylamine molecules to form the organogel and vesicle structures. A model based on structural transformation with respect to these alkylamine gelator-solvent assembles is therefore proposed.