Elasticity and Molecular Rearrangement during Polymerization of the Mixed Monolayer of 10,12-Pentacosadiynoic Acid and Ru(dpphen)32+
Elasticity and Molecular Rearrangement during Polymerization of the Mixed Monolayer of 10,12-Pentacosadiynoic Acid and Ru(dpphen)32+
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DOI：
10.1021/la0208070
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发表时间：
2003-04
期刊：
影响因子：
3.9
通讯作者：
Z. Gang;A. Kun;H. Pingsheng
中科院分区：
文献类型：
--
作者：
Z. Gang;A. Kun;H. Pingsheng
研究了Ru（dpphen）32+（dpphen = 4，7-二苯基-1，10-菲咯啉）（Ru（II））与10，12-二十五碳二炔酸（PDA）不同摩尔比的混合单分子膜在纯水中的溶解性和相行为。Ru（II）是水不溶性的，并且充当表面抗衡离子。两种组分的相容性由混合单分子层的坍塌压力和混合的超额自由能证实。结果表明，Ru（II）/PDA = 1：1是制备混合单分子膜的最佳混合比，任何过量的Ru（II）或PDA都不利于混合单分子膜的稳定性。讨论了Ru（II）/PDA最佳配比为1：1时混合单分子膜的动态弹性和可能的凝聚态结构。PDA和Ru（II）的混合单分子层的紫外光聚合与不同的施加的表面压力和聚合时间。结果表明，PDA/Ru（II）分子在聚合过程中形成的网状结构使其分散在小的区域内，从而形成了一个有序的聚合物网络。
The miscibility and phase behavior of mixed monolayers of Ru(dpphen)32+ (dpphen = 4,7-diphenyl-1,10-phenanthroline) (Ru(II)) and 10,12-pentacosadiynoic acid (PDA) with different molar proportions on pure water were investigated in detail. Ru(II) is water insoluble and acts as a surface counterion. The miscibility of the two components was confirmed by the collapse pressure of the mixed monolayer and the excess free energy of mixing. It was found that Ru(II)/PDA = 1:1 is the best mixing ratio for the mixed monolayer on pure water, and any surplus Ru(II) or PDA is not favorable for the miscibility of the mixed monolayer. The dynamic elasticity and the possible condensed structure of the mixed monolayer with the optimum ratio of Ru(II)/PDA = 1:1 were discussed as well. The mixed monolayer of PDA and Ru(II) was UV-polymerized with different applied surface pressures and polymerization times. It was found that the PDA/Ru(II) molecules were isolated in small domains by the formed network during the polymerizati...