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POSS/PS复合材料的制备及其热性能
引用本文:郭晓冉,王文平,费明,刘磊,王鹏.POSS/PS复合材料的制备及其热性能[J].复合材料学报,2009,26(6):31-36.
作者姓名:郭晓冉  王文平  费明  刘磊  王鹏
作者单位:合肥工业大学化学工程学院,合肥,230009
基金项目:国家自然科学基金,合肥工业大学学生创新基金 
摘    要:单官能团3-氯丙基笼形倍半硅氧烷(POSS)与官能化的聚苯乙烯(PS)进行缩合反应,得到POSS/PS复合材料,其热性能得到明显改善。单官能团3-氯丙基POSS由顶端封角法制备;PS经过3步处理以引入醇钠基团:Friedel-Crafts酰基化反应将羰基引入到PS的苯基上,羰基被硼氢化钠还原为羟基,金属钠与羟基反应生成醇钠基团;单官能团3-氯丙基 POSS分子上的C—Cl与PS上的醇钠基团缩合从而制备POSS接枝的POSS/PS复合材料。利用1H NMR和FTIR技术表征中间产物和POSS/PS复合材料,结果表明POSS笼上的C—Cl与官能化后PS链上的醇钠官能团之间的缩合反应效率很高。XRD测试表明POSS具有良好的分散性。TGA、DSC分析结果表明,由于POSS的引入,POSS/PS复合材料比纯PS的初始分解温度提高69℃,玻璃化转变温度提高16℃。

关 键 词:低聚笼型倍半硅氧烷  聚苯乙烯  复合材料  热性能
收稿时间:2008-12-12
修稿时间:2009-04-10

Synthesis and thermal properties of POSS/PS composite
GUO Xiaoran,WANG Wenping,FEI Ming,LIU Lei,WANG Peng.Synthesis and thermal properties of POSS/PS composite[J].Acta Materiae Compositae Sinica,2009,26(6):31-36.
Authors:GUO Xiaoran  WANG Wenping  FEI Ming  LIU Lei  WANG Peng
Affiliation:(School of Chemical and Engineering, Hefei University of Technology, Hefei 230009, China)
Abstract:POSS/PS composite was synthesized through the condensation reaction of 3-chloropropylheptaisooctyl-POSS and functional PS.Sodium alkoxide group was attached to PS chain by three steps and the monofunctional-POSS molecule containing one single 3-chloropropyl group was synthesized by the corner-capping method.The structures of all intermediates and the POSS/PS composite were well characterized by 1H NMR,FTIR and XRD.The results show that the condensation reaction of 3-chloropropylheptaisooctyl-POSS and functi...
Keywords:polyhedral oligomeric silsesquioxane(POSS)  polystyrene(PS)  composite  thermal properties
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