茂钛催化剂苯乙烯原位间规聚合制备sPS/蒙脱土纳米复合材料  

Preparation of sPS/Montmorillonite Nanocomposites via Styrene Syndiotactic Polymerization with Metallocene

作　　者：祝方明[1] 曾希果[1] 洪小云[1] 林尚安[1] 

机构地区：[1]中山大学高分子研究所,广州510275

出　　处：《高等学校化学学报》2003年第2期368-370,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 990 40 10 );广东省自然科学基金 (批准号 :990 2 70 )资助

摘　　要：Novel syndiotactic polystyrene/montmorillonite nanocomposites were prepared via in situ intercalative coordination polymerization with Cp *Ti(OBz) 3/MTN/MAO/TIBA catalytic system. The effect of polymerization conditions such as MTN/St mass ratio, temperature and monomer concentration on the styrene syndiospecific polymerization was investigated. The intercalation spacing in the nanocomposites as well as the exfoliation of the layer host was characterized with wide angle X-ray diffraction and transmission electron microscopy. The dispersibility of the nanoscale elemnets depended on the polymerization conditions and whether a surfactant is added or not into the montmorillonite.Novel syndiotactic polystyrene/montmorillonite nanocomposites were prepared via in situ intercalative coordination polymerization with Cp *Ti(OBz) 3/MTN/MAO/TIBA catalytic system. The effect of polymerization conditions such as MTN/St mass ratio, temperature and monomer concentration on the styrene syndiospecific polymerization was investigated. The intercalation spacing in the nanocomposites as well as the exfoliation of the layer host was characterized with wide angle X-ray diffraction and transmission electron microscopy. The dispersibility of the nanoscale elemnets depended on the polymerization conditions and whether a surfactant is added or not into the montmorillonite.

关 键 词：茂钛催化剂 苯乙烯 原位间规聚合 制备 纳米复合材料 间规聚苯乙烯 蒙脱土 季铵盐 化学修饰 

分 类 号：TB332[一般工业技术—材料科学与工程] O632.13[理学—高分子化学]