AM-NaAMPS-St三元共聚物的合成及溶液性能研究  

Synthesis of Acrylamide-Sodium 2-Acrylamido-2-Methylpropanesulfonate-Styrene Copolymer and Study of its Aqueous Solution Properties

作　　者：吴念[1] 高保娇[1] 李延斌[1] 徐立[1] 

机构地区：[1]华北工学院化学工程系,山西太原030051

出　　处：《石油化工》2004年第1期46-50,共5页Petrochemical Technology

基　　金：山西省自然科学基金项目(94012)。

摘　　要：在微乳液介质中制备了组成系列变化的丙烯酰胺(AM)-2-丙烯酰胺基-2-甲基丙磺酸钠(NaAMPS)-苯乙烯(St)三元共聚物P(AM-NaAMPS-St)。通过红外光谱、紫外光谱、复合作用电导滴定法对共聚物的结构和组成进行了表征。用稀释外推粘度法测定了共聚物的特性粘数及Huggins常数kH。用荧光探针法与表观粘度法研究了大分子链间的疏水缔合作用,考察了共聚物结构对其水溶液性能的影响。Copolymerization of acrylamide(AM),sodium 2-acrylamido-2-methylpropanesulfonate (NaAMPS) and styrene (St) was carried out in microemulsion medium.A series of amphiphilic block copolymers P(AM-NaAMPS-St) with various composition were prepared.Structure and composition of copolymers were characterized by FTIR spectrum,ultraviolet spectrophotometry(UV) and complex reaction conductometric titration.Copolymer viscosity was determined by means of Ubbelohde viscometer.Intrinsic viscosity was determined by dilution extension method from which molecular weight can be indicated relatively.Huggins constants were obtained at the same time.Hydrophobic association property of copolymers could be investigated by florescence probe technology and rheological property measurement,by which relationships between structure and properties of the copolymers P(AM-NaAMPS-St) were studied emphatically.

关 键 词：嵌段共聚物 疏水缔合 结构与性能 丙烯酰胺 2-丙烯酰胺基-2-甲基丙磺酸钠 苯乙烯 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]