摘要
以工业级的3-氯丙基三氯硅烷和七聚(苯基)倍半硅氧烷三硅醇钠为原料,通过顶端封角法合成了含有一个3-氯丙基、七个苯基的单官能团POSS(3-氯丙基POSS),并以其作为聚苯乙烯的添加剂,采用化学接枝的方法制备POSS/PS复合材料。利用傅立叶转变红外光谱(FT-IR)、核磁共振(~1H-NMR ^(29)Si-NMR)和X-射线衍射(XRD)技术对中间产物和笼型倍半硅氧烷(POSS)/聚苯乙烯(PS)的结构及组成进行了表征。研究表明,POSS分子能成功地接枝到聚苯乙烯主链上,且POSS分子以分子级水平均匀分散在聚苯乙烯基体中。
The monofunctional-polyhedral oligomeric silsesquioxane (POSS) molecule containing one single 3- chloropropyl group was synthesized by the comer-capping method using industrial raw material of phenyltrichlorosilane and heptaphenyltricycloheptasiloxane trisodium silanolate, which was used as filler to modify the functional polystyrene to prepare POSS/polystyrene (PS) composite. The structures of the all intermediates and POSS/PS composite were well characterized by nuclear magnetic resonance spectrum (1H-NMR, 29 Si-NMR), Fourier transform infrared spectrum(FT-IR) and X-ray diffraction (XRD). The results show that the condensation reaction of 3-chloropropylheptaisooctyl-POSS with the functional PS is efficient, and POSS molecule is well dispersed in the composite.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2011年第6期146-149,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50673023)
关键词
笼型倍半硅氧烷
聚苯乙烯
复合材料
接枝法
polyhedral oligomeric silsesquioxane
polystyrene
composite
grafted method