两亲性1,7-二酚氧基苝二酰亚胺凝胶化过程的溶剂化作用
Solvent effect on the gelation of a H-aggregated 1,7-bis- phenoxy perylene diimide amphiphile
设计并合成了一个两亲性苝二酰亚胺化合物（PDI 1），研究了其在两种混合溶剂中形成的凝胶（I）和（II）的性质。紫外和荧光研究表明两种凝胶都是H型聚集，変温紫外表明随着温度变化单体和聚集体在溶液和凝胶之间可以相互转变。用XRD和AFM进一步研究了凝胶的内部结构和形貌，研究结果表明分子间π-π作用是PDI分子面对面排列的主要驱动力，并且形成了纳米带和网络结构。因此，本文的研究结果成功地说明了溶剂化作用对PDI成凝胶过程有重要影响。
new amphiphilic perylene tetracarboxylic diimide (PDI 1) compound has been designed and prepared. The gelation abilities of it have been investigated in two kinds of mixed solvents. The results indicate that compound 1 form fluorescent gel I and II in different solvents . The photophysical properties of the diluted gel have been investigated by UV-vis absorption spectra, temperature-dependent absorption and emission spectra. The results indicate that the gel of compound 1 is composed of the H aggregates. The transformation between the monomer and aggregates at different temperature induce the interconversion between solution and gel states. The gelation behavior of compound 1 in solid state has been investigated the X-ray diffraction (XRD) experiments and the morphology of the solid gel has been measured by atomic force microscopy (AFM).
薛林、李希友、吴海霞、石岩
有机化学工业高分子化合物工业精细化学工业
物理化学苝二酰亚胺溶剂效应π-π 作用有机凝胶
physical chemistryperylene tetracarboxylic diimidesolvent effectπ-π stackingorganogel
薛林,李希友,吴海霞,石岩.两亲性1,7-二酚氧基苝二酰亚胺凝胶化过程的溶剂化作用[EB/OL].(2011-01-14)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/201101-781.点此复制
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