作　　者： ; ; ; ; ; ;

机构地区： 吉林大学化学学院超分子结构与材料国家重点实验室

出　　处： 《高分子学报》 2003年第2期293-297,共5页

摘　　要： Cross linked polystyrene microspheres with quarternary ammonium have been prepared via surfactant\|free emulsion polymerization. It was confirmed that the sizes of the microspheres decreased at a certain extent when the contents of the initiator,cross linked reagent or functional monomer were increased.TEM observation indicated that the size of polymer microspheres ranged from tens of nanometer to hundreds of nanometer. The XPS results showed that the hydrophilic quarternary ammonium groups tended to be rich on the surface of the microspheres during the polymerization.In addition,their swelling ratio can be investigated by using the “ in situ" swelling measurement of polymer microspheres. Cross-linked polystyrene microspheres with quarternary ammonium have been prepared via surfactant-free emulsion polymerization. It was confirmed that the sizes of the microspheres decreased at a certain extent when the contents of the initiator, Cross-linked reagent or functional monomer were increased. TEM observation indicated that the size of polymer microspheres ranged from tens of nanometer to hundreds of nanometer. The XPS results showed that the hydrophilic quarternary ammonium groups tended to be rich on the surface of the microspheres during the polymerization. In addition, their swelling ratio can be investigated by using the 'in-situ' swelling measurement of polymer microspheres.

关 键 词： 表面富集 季胺盐 交联剂 聚苯乙烯 合成 表征 溶胀行为 无皂乳液聚合

领　　域： [理学] [理学]