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分散聚合-种子溶胀聚合法制备中空微球的研究

Preparation of Hollow Microspheres by Dispersion Polymerization-Seeded Swelling Polymerization

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【Author】 LIU Qi1,2,HUANG Chi1,LUO Shi1,2,LIU Zong-hui1,LIU Bai-ling1(1.Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,Chengdu 610041,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China)

【机构】中国科学院成都有机化学研究所；中国科学院成都有机化学研究所四川成都610041；中国科学院研究生院；北京100049；四川成都610041；

【摘要】采用分散聚合法制备聚苯乙烯(PSt)。以甲苯-正辛醇作致孔溶剂,过氧化苯甲酰为引发剂,PSt为单分散种球,反应单体苯乙烯和交联单体二乙烯基苯(DVB)通过种子溶胀聚合法,在水介质中制备了呈单分散的中空聚合物微球[P(St-DVB),粒径5μm~8μm],其形态及热力学行为经SEM,DSC和TGA表征。讨论了DVB用量及溶剂组成对P(St-DVB)形态的影响。更多还原

【Abstract】 Polystyrene(PSt) was prepared by dispersion polymerization.Monodisperse hollow microspheres[P(St-DVB),diameter size 5 μm~8 μm] were synthesized from PSt(monodisperse seeded spheres),styrene(reaction monomer) and divinylbenzene(DVB,crosslinking monomer) by dispersion polymerization-seeded swelling polymerization in water medium using toluene-n-octanol as the hollowing solvent system,benzoyl peroxide as an initiator.The morphology and thermodynamics behavior of P(St-DVB) were characterized by SEM,DSC and TGA.The influence of DVB amount and solvent system on morphology of P(St-DVB) were investigated.更多还原

【关键词】苯乙烯；二乙烯基苯；聚苯乙烯；分散聚合；种子溶胀聚合；中空微球；
【Key words】 styrene； divinyl benzene； dispersion polymerization； seeded swelling polymerization； hollow microspheres；

【文献出处】合成化学 ,Chinese Journal of Synthetic Chemistry , 编辑部邮箱 ,2008年02期

【分类号】O631.5
【被引频次】8
【下载频次】666

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