文档介绍：·78·
刘
勇等,甲基丙烯酸甲酯悬浮聚合工艺条件的研究
Vol. 32,No. 5,2010
甲基丙烯酸甲酯悬浮聚合工艺条件的研究
刘
勇 1,王
俏 2
(,陕西延安 716000 716000)
摘要:通过悬浮聚合法制取了聚甲基丙烯酸甲酯(PMMA)。主要研究了分散剂、引发剂、温度、搅拌速度以及水和单体的比
对聚合物的影响。结果表明:当单体的量为 12mL 时,水和单体比为 5∶1 (体积比);引发剂的量为 ;分散剂的量为 MgCl2:
3mL、NaOH:6mL;温度控制在 75~78℃,反应约 ;搅拌速度为 250r/min 的实验条件下,制得了颗粒均匀、透明度良好、产率较
高的聚甲基丙烯酸甲酯。
关键词:甲基丙烯酸甲酯;悬浮聚合;工艺研究
中图分类号:
文献标识码:B
文章编号:1001-0017(2010)05-0078-03
Study on the Technical Condition of MMA Suspension Polymerization
(1. Department of Chemical Engineering and Chemistry,Yan’an Institute of Vocational Technology,Yan’an 716000,China; 2. College of Chemistry
and Chemical Engineering,Yan’an University,Yan’an 716000,China)
Abstract: Polymethyl methacrylate (PMMA) is prepared by the method of suspension polymerization. The effects of the dispersing agent ,
temperature,and initiator,stirring speed and ratio of water to monomer on the product are studied. The result shows the optimal experimental
conditions are as follows: the monomer volume is 12mL,the volume ratio of water to monomer is 5 ∶1,the amount of initiator is ,the amount of
dispersing agent MgCl2 and NaOH is 3mL and 6mL respectively,the temperature is about 75~78 ℃,the reaction time is about ,the stirring
speed is 250 r/min,under these conditions,the PMMA prepared has uniform particles,good transparency and h