分散聚合法AM/SSS/SMA疏水缔合聚合物微球的研究  

Investigation on AM/SSS/SMA Hydrophobically Associating Copolymer Microsphere By Dispersion Polymerization

作　　者：宋茂生[1] 万涛[1] 卜道露[1] 张海波[1] 罗雷[1] 王登慧[1] 

机构地区：[1]成都理工大学矿产资源化学高校重点实验室,四川成都610059

出　　处：《广州化工》2013年第2期5-7,11,共4页GuangZhou Chemical Industry

基　　金：中国博士后科学基金特别资助项目(201003688);中国博士后科学基金项目(20070421140);油气藏地质及开发工程国家重点实验室基金项目(PLN1114)

摘　　要：以偶氮二异丁腈为引发剂,乙醇/N,N-二甲基甲酰胺为分散介质,聚乙烯吡咯烷酮(PVP)为分散剂,将丙烯酰胺、甲基丙烯酸十八酯和苯乙烯磺酸钠进行分散聚合制备了AM/SSS/SMA疏水缔合聚合物微球,考察了乙醇/N,N-二甲基甲酰胺体积比、引发剂用量、PVP用量和甲基丙烯酸十八酯含量对疏水缔合聚合物微球粒径的影响。结果表明疏水缔合聚合物微球粒径可调,在本实验条件范围内粒径为1.5～7.8μm,具有较好的分散性。FTIR谱图初步证实疏水缔合聚合物的结构,TGA表明疏水缔合聚合物起始分解温度为275℃,耐热性较好。Hydrophobically associating polymer microsphere was prepared by dispersion copolymerization of acrylamide（AM）,stearyl methacrylate（SMA） and sodium styrene sulfonate（SSS）,using ethanol/DMF as dispersion medium,polyethylene pyrrole（PVP） as dispersant,and AIBN as initiator.Factors affecting particle size of hydrophobically associating polymer microsphere,such as ethanol/DMF volume ratio,initiator amount,dispersant amount and SMA amount were investigated.Results showed that the hydrophobically associating polymer microsphere had adjustable particle size with average particle sizes of 1.5~7.8 μm,together with good dispersion.FTIR spectrum indicated the structure of hydrophobically associating polymer.TGA indicated good thermostability of hydrophobically associating polymer microsphere with the onset decomposition temperature of 275 ℃.

关 键 词：疏水缔合 微球 分散聚合 引发剂 

分 类 号：O645.1[理学—物理化学]