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研究以苯乙烯为初始原料 ,通过自由基本体聚合为聚苯乙烯 ;经付克烷化反应 ,使聚苯乙烯芳环上的氢亲电取代为磺酸基、羧酸基等亲水端基 ,从而将聚苯乙烯改性为两亲分子 ;再利用单分子成膜法制备纳米级聚苯乙烯超薄薄膜的制备工艺。研究了压膜和提膜速度、温度及高靶压等工艺条件对超薄薄膜成膜性能的影响 ,用原子力显微镜表征了聚苯乙烯超薄薄膜的形貌。 2 0nm厚的聚苯乙烯磺酸薄膜的表面呈现团簇结构
In the present study, styrene was used as the starting material and polymerized by free radical to polystyrene. After the alkylation reaction, the electrophilic hydrogen on the aromatic ring of polystyrene was substituted by the hydrophilic end groups , Which will be modified into amphipathic polystyrene molecules; and then the use of single-molecule film-forming preparation of nanoscale polystyrene ultra-thin film preparation. The effects of filming and filming speed, temperature and high target pressure on the film forming properties of ultrathin films were investigated. The morphology of ultrathin polystyrene films was characterized by atomic force microscopy. The surface of 2 0 nm thick polystyrenesulfonic acid film showed a cluster structure