文献类型：期刊文章

作　　者：白玉勤[1] 郭金宝[1] 王影[1] 魏杰[1]

机构地区：[1]北京化工大学材料科学与工程学院,北京市水性聚合物合成与应用工程技术研究中心,北京100029

出　　处：《Chinese Journal of Chemical Physics》

年　　份：2013

卷　　号：26

期　　号：1

起止页码：95-101

语　　种：中文

收录情况：AJ、CAS、CSCD、CSCD2013_2014、INSPEC、JST、RSC、SCIE、SCOPUS、ZGKJHX、普通刊

摘　　要：A polymerized lyotropic liquid crystal monomer of sodium 3,4,5-tris（11-acryloxyundecyloxy）- benzoate was synthesized by a convenient route starting from 3,4,5-trihydroxybenzoic acid via esterification followed by etherification, acylation and finally neutralization. The chemi- cal structure was confirmed by Fourier transform infrared （FT-IR） and 1H nuclear magnetic resonance spectral analysis. The self-organization behavior of the monomer with deionized water in methanol at room temperature was also demonstrated. The assemblies were char- acterized by polarized optical microscope and X-ray diffraction. The results show that a solution containing 80：20 of the monomer to water was found to be able to self-organize into Lamellar （La） phase and 92：8 with inverted hexagonal （H]I） phase, which was in ac- cordance with the theoretical calculation of critical packing parameter. It suggests that the concentration of the monomer was the key factor to influence assembly structure. Addi- tionally, the acrylate conversion with different photoinitiators and nanostructure retention after polymerization were investigated. The research shows that the acrylate conversion of the monomer with Darocur2959 could reach up to 78% when irradiated by 30 mW/cm2 UV light of 365 nm for 30 min characterized by Real-time FT-IR as well as the sol-gel method. Meanwhile, the La and HII phase nanostructures were both retained after polymerization.

关 键 词：Polymerized lyotropic liquid crystal  SELF-ASSEMBLY La phase  HII phase  UV-CURING

分 类 号：O]