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电荷稳定分散聚合制备光活性聚苯乙烯微球
引用本文:张芬,马育红,刘莲英,曹乐,杨万泰.电荷稳定分散聚合制备光活性聚苯乙烯微球[J].北京化工大学学报(自然科学版),2011,38(1):77-82.
作者姓名:张芬  马育红  刘莲英  曹乐  杨万泰
作者单位:北京化工大学,碳纤维及功能高分子教育部重点实验室,北京,100029;北京化工大学,碳纤维及功能高分子教育部重点实验室,北京,100029;北京化工大学,碳纤维及功能高分子教育部重点实验室,北京,100029;北京化工大学,碳纤维及功能高分子教育部重点实验室,北京,100029;北京化工大学,碳纤维及功能高分子教育部重点实验室,北京,100029
基金项目:长江学者和创新团队发展计划
摘    要:采用苯乙烯磺酸钠电荷稳定分散聚合体系,在甲醇/水混合溶剂中,通过后滴加功能单体4-烯丙氧基-2-羟基苯甲酮(BP-OH),制备出表面带有二苯甲酮光引发基团的聚苯乙烯(PS)微球。研究了功能单体BP-OH的补加时间及总反应时间对微球形貌及功能基团结合量的影响,并将所制备的功能性PS微球在紫外光辐照下引发荧光单体7-甲基丙烯酰氧乙基-4-甲基香豆素(MCMA)反应;并通过场发射扫描电子显微镜(FESEM)、傅里叶变换红外光谱(FT-IR)、紫外可见光谱(UV-Vis)及荧光显微镜(FM)对微球进行测试表征。结果表明,所制备的微球具有光引发活性。

关 键 词:分散聚合  电荷稳定  光活性  聚苯乙烯  微球
收稿时间:2010-05-19

Preparation of photoreactive polystyrene particles by charge-stabilized dispersion polymerization
ZHANG Fen,MA YuHong,LIU LianYing,CAO Le,YANG WanTai.Preparation of photoreactive polystyrene particles by charge-stabilized dispersion polymerization[J].Journal of Beijing University of Chemical Technology,2011,38(1):77-82.
Authors:ZHANG Fen  MA YuHong  LIU LianYing  CAO Le  YANG WanTai
Affiliation:Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
Abstract:Polystyrene(PS) microspheres with benzophenone groups on the surface have been produced by a two-step polymerization method using sodium styrenesulfonate-stabilized dispersion polymerization in a methanol-water mixed solvent.The effects on the particles of varying the addition time of the functional monomer 4-allyloxy-2-hydroxybenzophenone(BP-OH),and the polymerization time were studied.Under UV irradiation,the fluorescent monomer 7-methacryloyl-4-methylcoumarin could undergo polymerization with the functional PS particles.Characterization of the particles was performed by field emission scanning electron microscopy(FESEM),Fourier transform infrared spectroscopy(FT-IR),UV-Visible spectroscopy and fluorescence microscopy(FM).The results indicated that the resulting particles possessed photoreactivity.
Keywords:dispersion polymerization  charge-stabilized  photoreactive  polystyrene  microsphere
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