二甲基二烯丙基氯化铵及其聚合物的红外光谱研究  

Determination of dimethyl diallyl ammonium chloride by infrared spectroscopy

作　　者：李波[1] 于慧[2] 邵秀梅[3] 

机构地区：[1]上海大学环境与化学工程学院,上海200072 [2]山东大学环境科学与工程学院,济南250100 [3]华中科技大学环境工程学院,武汉430074

出　　处：《分析试验室》2002年第2期41-43,共3页Chinese Journal of Analysis Laboratory

摘　　要：对二甲基二烯丙基氯化铵 (DMDAAC)不同聚合度的均聚物和它与丙烯酰胺的共聚物进行了结构分析 ,讨论了红外光谱吸收峰随聚合物特性粘度、单体的质量分数变化的规律及原因。结果表明 ,在均聚物中 ,随粘度的升高 ,峰位分别为 1 2 6 2cm- 1 和 6 78cm- 1 处的碳氮键的伸缩与变形振动吸收峰增强 ;在共聚物中 ,当粘度不是很大时 ,粘度或单体的质量分数的升高都会使 3 0 1 7cm- 1 处碳氢键的伸缩振动吸收峰增强。The structure of polymers of dimethyl diallyl ammonium chloride (DMDAAC) with different polymerization degree was determined by infrared spectroscopy. Changes of absorption peak positions with polymers′ viscosity and DMDAAC content were studied. For polymers of DMDAAC (PDMDAAC), peaks at 1262 cm -1 and 678 cm -1 for flexible and deformable vibration of carbon-nitrogen bond became stronger with the increase of viscosity. For DMDAAC′s copolymers with acrylamide(PDMDAAC-AM), when viscosity was not high enough, the peak at 3017 cm -1 for flexible vibration of carbon-hydrogen bond became stronger with the increase of viscosity or DMDAAC content.

关 键 词：二甲基二烯丙基氯化铵 水处理 结构 粘度 红外光谱 丙烯酰胺 均聚物 高分子絮凝剂 均聚物 共聚物 

分 类 号：TQ085.4[化学工程] O631[理学—高分子化学]