紫外光引发合成阴离子聚丙烯酰胺及其表征  

Ultraviolet-Initiated Synthesis and Characterization of Anionic Polyacrylamide

作　　者：马江雅[1] 郑怀礼[1] 卢伟[1] 吉方英[1] 刘力维[1] 朱俊任[1] 孙永军[1] 

机构地区：[1]重庆大学教育部三峡库区生态环境重点实验室,重庆400045

出　　处：《光谱学与光谱分析》2012年第12期3385-3389,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(51078366;21177164);教育部高等学校科技创新工程重大项目培育资金项目(708071)资助

摘　　要：选择了三种单体:丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和丙烯酸(AA),在复合引发剂的作用下,紫外光照射共聚得到阴离子聚丙烯酰胺(APAM)。研究了单体配比、单体总质量分数以及引发剂浓度等因素对聚合反应的影响,以产物特性粘度为目标进行了制备条件的优化,并对聚合产物的紫外、红外、电镜等结构和热性能进行表征。结果表明,在单体配比为70∶10∶10、单体质量分数为40%、引发剂浓度0.20%、反应体系pH值为9.0以及光照60min条件下,能够制得特性粘度为1.6×103 mL.g-1的阴离子聚丙烯酰胺。APAM was prepared under the action of composite initiator and UV irradiation, using acryl amide （AM）, 2-acrylami- do-2- methyl propane sulfonic acid （AMPS） and acrylic acid（AA） as raw materials. The paper studied the effect of proportion between monomers, monomer ratio, initiator concentration and other factors on intrinsic viscosity of the polymer, and optimized preparation conditions. The chemical structure and thermal stability of APAM were characterized by UV, FTIR, SEM and DTA-TGA respectively. The results showed that the APAM with the intrinsic viscosity 1.6 × 103 mL · g^-1 can prepared when the proportion between monomers was 70 ： 10 ： 10, the monomer ratio was 40%, initiator concentration was 0. 20%, pH was 9 and the illu mination time was 60 min.

关 键 词：紫外光聚合 阴离子聚丙烯酰胺 光谱分析 特性粘度 

分 类 号：X703[环境科学与工程—环境工程] O631[理学—高分子化学]