苯乙烯-马来酸交替共聚物的合成及水溶液性质  

Synthesis and Solution Property of Styrene-Maleic Acid Alternating Copolymer

作　　者：唐炳涛[1] 杨振宇[1] 张淑芬[1] 贾超[1] 赵杰[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116012

出　　处：《高分子材料科学与工程》2011年第11期40-44,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20804007);教育部高等学校博士学科点专项科研基金(200801411032);教育部长江学者和创新团队发展计划(IRT0711);中央高校基本科研业务费专项资金(893381)

摘　　要：以过氧化苯甲酰为引发剂,采用沉淀聚合法合成了苯乙烯-马来酸酐交替共聚物,用核磁共振(13C-NMR),红外光谱(IR)和凝胶渗透色谱(GPC)对共聚物进行了表征。利用苯乙烯-马来酸酐交替共聚物的水解反应制备了苯乙烯-马来酸交替共聚物,并对其水溶液性质进行了研究。结果表明,苯乙烯-马来酸交替共聚物为二元羧酸,且随着共聚物浓度的降低,其比浓黏度迅速增加,在同一浓度下,随着溶液pH值升高,水溶液黏度先增大后减小,当pH值达到6时,溶液黏度达到最大值。Styrene-maleic anhydride copolymer（SMA） was synthesized by solution sediment polymerization method,with benzoyl peroxide（BPO） as the initiator.The structure of the copolymer was confirmed by 13C nuclear magnetic resonance spectrum（13C-NMR）,infrared spectrum（IR） and gel permeation in chromatography（GPC） analysis.Styrene-maleic acid alternating copolymer（HSMA） was synthesized by the free radical polymerization-hydrolysis method,its solution property and influence factors were investigated.The experimental results indicate that HSMA is a binary carboxylic acid,and the solution viscosity increases when the concentration of copolymer decreases.At the same concentration,with the increase of the pH value of the solution,the viscosity of the solution increases at first and then decreases.The viscosity reaches the maximum value when the pH value of the solution is 6.

关 键 词：苯乙烯-马来酸交替共聚物 水溶液 溶液性质 黏度 

分 类 号：TQ316.342[化学工程—高聚物工业]