不同聚合方法对AM/MADQUAT共聚物序列分布的影响  

Sequence Distribution of the P(AM-MADQUAT) Prepared by Different Methods

作　　者：申迎华[1] 武根壮[1] 王双孝[1] 王志忠[1] 

机构地区：[1]太原理工大学化学化工学院,山西太原030024

出　　处：《高分子材料科学与工程》2008年第2期23-26,共4页Polymer Materials Science & Engineering

基　　金：山西省科技攻关项目(2006031139);山西省青年基金(20031018)

摘　　要：采用溶液聚合和反相微乳液聚合两种方法对丙烯酰胺(AM)、(2-甲基丙烯酰氧乙基)三甲基氯化铵(MADQUAT)在较低单体浓度下进行共聚合。计算得出两种方法中单体AM、MADQUAT的竞聚率,溶液中rAM=0.30,rMADQUAT=1.31;微乳液中rAM=0.63,rMADQUAT=1.12。并用测得的竞聚率数据,通过计算机程序计算了共聚物的瞬时组成、平均组成,在研究溶液和微乳液中共聚物的组成及序列分布的差异时,发现微乳液聚合得到的聚合物的平均组成更均一。Binary polymerizations of AM/MADQUAT by solution and inverse microemulsion copolymerization with low monomer concentration were studied. Reactivity ratios of AM/MADQUAT in solution and inverse mieroemulsion have been calculated. Solution.. rAM = 0.30; rMADQUAT = 1.31; Mieroemulsion： rAM = 0.63, rMADQUAT = 1.12. Using the data of reactivity ratio to calculate variation of copolymer instantaneous composition, and figure average composition of eopolymer. The different composition and sequence distribution of copolymer were disscussed. The results show that microemulsion polymerization process makes eopolymers more homogeneous in mean composition than solution polymerization.

关 键 词：竞聚率 平均组成 瞬时组成 序列分布 

分 类 号：TQ316.342[化学工程—高聚物工业]