Epoxy/polyhedral oligomeric silsesquioxane nanocomposites from octakis(glycidyidimethylsiloxy)octasilsesquioxane and small-molecule curing agents

被引：50
作者：
Liu, Ying-Ling [1 ]
Chang, Gung-Pei
Hsu, Keh-Ying
Chang, Feng-Chih
机构：
[1] Chung Yuan Christian Univ, Dept Chem Engn, Taoyuan 320, Taiwan
[2] Chung Yuan Christian Univ, R&D Ctr Membrane Technol, Taoyuan 320, Taiwan
[3] Natl Chiao Tung Univ, Dept Appl Chem, Hsinchu 300, Taiwan
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2006年 / 44卷 / 12期
关键词：
curing of polymers; nanocomposites; silicons; crosslinking;
D O I：
10.1002/pola.21484
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Epoxy/polyhedral oligomeric silsesquioxane (POSS) nanocomposites were obtained from octakis(glycidyldimethylsiloxy)octasilsesquioxane (OG) and diglycidyl ether of bisphenol A cured with small-molecule curing agents of diethylphosphite (DEP) and dicyandiamide (DICY). An increase in the POSS contents of the nanocomposites and an improvement in the nanocomposite homogeneity were observed with the use of the small-molecule curing agents. Phosphorus in DEP and nitrogen in DICY also performed synergism with POSS for thermal stability enhancement and flammability improvement in the nanocomposites. The nanocomposites possessing high OG contents exhibited good thermal stability, improved flammability, and high storage moduli. (c) 2006 Wiley Periodicals, Inc.
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页码：3825 / 3835
页数：11
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