石油化工2024，Vol.53Issue(7)：992-998,7.DOI:10.3969/j.issn.1000-8144.2024.07.012
后处理工艺对均一马来酸酐/α-甲基苯乙烯交联聚合物微球性能的影响
Effects of post-treatment on properties of uniform cross-linked maleic anhydride/α-methylstyrene copolymer microspheres
刘振杰 1张洁 1张晓尘 1张嘉桐 1代增悦 1林秀怡1
作者信息
- 1. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
The uniform cross-linked maleic anhydride/α-methylstyrene copolymer microspheres were prepared by self-stable precipitation polymerization.The polymer microspheres were post-treated by washing with methanol,vacuumizing and drying.The effects of the post-treatment process such as methanol washing amount,drying temperature and time on the properties of the polymer microspheres were studied.Properties of polymers were characterized by SEM,FTIR,TG,TG-FTIR,and 1H NMR.The results show that washing twice with methanol at room temperature,followed by vacuum extraction and drying at 130℃ for 12 h did not change morphology,structure,particle size and its distribution of polymer microspheres.Washing with methanol helps to reduce the volatile content and control the yellow index(YI)of polymer microspheres.Washing twice with 144 g methanol,vacuuming and drying at 150-160℃ for 8-12 h can effectively reduce the volatile content in the polymer microspheres,the resultant polymer microspheres exhibit a YI of lower than 6.关键词
均一微球/自稳定沉淀聚合/后处理/挥发分Key words
uniform microsphere/self-stable precipitation polymerizaiton/post-treatment/volatile content分类
化学化工引用本文复制引用
刘振杰,张洁,张晓尘,张嘉桐,代增悦,林秀怡..后处理工艺对均一马来酸酐/α-甲基苯乙烯交联聚合物微球性能的影响[J].石油化工,2024,53(7):992-998,7.
