功能大分子咔唑基光敏剂的合成及光固化性能研究
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- 英文论文题名：Preparing and Photo-curing of Multi-functional Macromolecule Carbazole Photosensitizers
- 论文作者：贾小琴 ; 晁鹏杰 ; 王涛
- 英文论文作者：Xiaoqin Jia ; Pengjie Chao ; Tao Wang ; Department of Organic Chemistry ; College of Science ; Beijing University of Chemical Technology
- 年：2016
- 作者机构：北京化工大学理学院有机系;
- 论文关键词：噻吩取代咔唑 ; 硅氧烷 ; 阳离子光聚合 ; 增感剂 ; 疏水性
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十七分会：光化学
- 语种：中文
- 分类号：TQ314.24
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十七分会 ; 光化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：164k
- 原文格式：D
- 会议级别：全国
摘要
传统光聚合引发剂吸收波长短,需使用能耗高伤害大的紫外光源,但合成用于可见光波长范围的光引剂比较困难,在光聚合体系中加入染料增感剂是解决这一问题的重要手段。咔唑衍生物对碘鎓盐引发的阳离子光聚合具有良好的增感作用。以高含氢硅油、1,3,5,7-四甲基环四硅氧烷为原料,3-(3-噻吩)-N-烯丙基咔唑(Th Cz)和3,6-二(3-噻吩)-N-烯丙基咔唑(Th2Cz)为增感基团,4-乙烯基环氧环己烷为可光固化交联基团,硅氢加成得到一系列多功能性大分子光敏剂Ep-ThCz-SiO、Ep-Th2Cz-SiOEp-Th Cz-DSiO和Ep-Th2Cz-DSiO。光聚合实验表明该类增感剂在卤素灯下对碘鎓盐引发的双酚A型环氧树脂(E51)光固化有很强增感作用,且固化后材料表面疏水性明显增强,材料表面静态接触角随着有机硅氧烷含量的增加而增大。
Dyes with interesting long wavelength light absorption properties and high molar extinction coefficients find marvelous applications in photopolymerization. Thiophene and carbazole derivatives were used as photosensitizers in iodonium salt initiated cationic photopolymerization. A series of epoxy-siloxanes modified thiophene-substituted carbazole sensitizers were synthesized via the hydrosilylation reaction. The photo-curing of E51 under halogen lamp showed that these multi-functional macromolecular photosensitizers have strong photosensitive effect to iodonium salt, and the surface hydrophobicity of cured materials was enhanced.
Dyes with interesting long wavelength light absorption properties and high molar extinction coefficients find marvelous applications in photopolymerization. Thiophene and carbazole derivatives were used as photosensitizers in iodonium salt initiated cationic photopolymerization. A series of epoxy-siloxanes modified thiophene-substituted carbazole sensitizers were synthesized via the hydrosilylation reaction. The photo-curing of E51 under halogen lamp showed that these multi-functional macromolecular photosensitizers have strong photosensitive effect to iodonium salt, and the surface hydrophobicity of cured materials was enhanced.
引文
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[2]Chen Y.;Yamamura T.;Igarashi K.J.Polym.Sci.Part A:Polym.Chem.2000,38:90.
[2]Chen Y.;Yamamura T.;Igarashi K.J.Polym.Sci.Part A:Polym.Chem.2000,38:90.