| 一种席夫碱凝胶因子的制备及凝胶化研究 |
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| 引用本文： | 陈发胜,薛伟,郭敏,尹桂.一种席夫碱凝胶因子的制备及凝胶化研究[J].南京大学学报(自然科学版),2009(5). |
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| 作者姓名： | 陈发胜 薛伟 郭敏 尹桂 |
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| 作者单位： | 南京大学化学化工学院; |
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| 基金项目： | 江苏省自然科学基金(BK2006717) |
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| 摘 要： | 合成并表征了一种可自组装的Schiff碱凝胶因子(gelator)N,N-′(1,4-苯基二亚甲基叶立德)-二3,4,5-三(十二烷氧基)苯胺](简称PBBA);研究了该凝胶因子在一些有机溶剂中凝胶化性能;用傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)、扫描电镜(SEM)等分析方法对凝胶进行了表征;研究了不同浓度的凝胶因子对溶胶-凝胶以及凝胶-溶胶转变温度的影响.研究表明该凝胶因子是通过范德华力,π-π堆积等次价键的作用而聚集自组装成三维网状结构,再与溶剂相互作用形成凝胶的.
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| 关 键 词： | 凝胶因子 席夫碱 凝胶化 自组装 |
A new low-molecular-weight organogelator based on long chain substituted phenyl Schiff base |
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| Chen Fa-Sheng,Xue Wei,Guo Min,Yin Gui.A new low-molecular-weight organogelator based on long chain substituted phenyl Schiff base[J].Journal of Nanjing University: Nat Sci Ed,2009(5). |
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| Authors: | Chen Fa-Sheng Xue Wei Guo Min Yin Gui |
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| Institution: | School of Chemistry and Chemical Engineering;Nanjing University;Nanjing;210093;China |
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| Abstract: | We report on the synthesis and self-assembly of a Schiff-based molecules N,N'-1,4-phenylenebis(methan-1-yl-1-ylidene)]bis3,4,5-tris(dodecyloxy)aniline](PBBA).It was found that PBBA could form stable gels in several weak polar solvents such as benzyl alcohol,octanol,1-butanol and 2-propanol.The gel-to-solution phase-transition temperatures(Tg) of gels in selected solvents increase with the enhancing of gelator concentration.Scanning electron microscopy(SEM) images revealed that their xerogel morphologies w... |
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| Keywords: | gelator Schiff base gelation self-assembly |
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