Synthesis and Luminescent Property of Polycarbazole/Polyhedral Oligomeric Silsesquioxane Nanocomposites

被引：5
作者：
Zhu Yu-fang [1 ,2 ]
Zhao Jun-feng [3 ]
Wang Xi [1 ]
Li Qi-fang [1 ,2 ]
机构：
[1] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
[3] Henan Inst Engn, Zhengzhou 451191, Peoples R China
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2008年 / 24卷 / 05期
基金：
国家高技术研究发展计划(863计划); 北京市自然科学基金;
关键词：
Polyhedral oligomeric silsesquioxane; Luminescence; Polyvinylcarbazole; Nanocomposite;
D O I：
10.1016/S1005-9040(08)60120-8
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polyvinylcarbazole(PVK) composites containing organic-inorganic hybrid polyhedral oligomeric silsesquioxane(POSS) PVK-POSS were prepared by free radical polymerization. POSS monomers reacted with vinylcarbazole and were completely dispersed at molecular level in PVK matrix and PVK-POSS nanocomposites display higher glass transition temperature(T-g) in comparison with neat PVK. Optical properties of PVK/POSS nanocomposites were investigated by UV-spectrum and PL-spectrum and the results show that the PVK-POSS nanoparticles have a good interface effect and improve color purity effectively. The maximum absorption wavelength bathochromically shifts gradually with the increasing of the content of POSS. The luminescent intensity becomes higher and higher with the increase of POSS content, and reaches its maximum luminescent intensity when the POSS content is 3% (mass fraction), while some POSS-rich nanoparticles are present in matrix when contents of POSS are beyond 5%.
引用
收藏
页码：570 / 574
页数：5
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