文献类型：期刊文献

中文题名：溶胀法制备单分散微米级PMMA微球

英文题名：Preparation of Monodisperse PMMA Microspheres by Swelling Procedure

作者：刘琨[1];杨景辉[1];陈雪梅[1]

机构：[1]华东理工大学国家超细粉末工程研究中心,上海200237

年份：2008

卷号：34

期号：2

起止页码：225

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：20081911245040);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：二步溶胀法;单分散;PMMA微球

外文关键词：two-stage swelling procedure; monodisperse; PMMA microspheres

摘要：采用二步溶胀法制备单分散PMMA微球,首先用分散聚合法制备出单分散的PMMA微球为种子,然后对种子进行溶胀并聚合。重点研究了溶胀温度、PMMA微球种子粒径、活化剂种类、加料时间对溶胀效果的影响,发现溶胀温度在35℃,PMMA微球种子粒径在2.0μm左右,以1,6-己二醇二丙烯酸酯作为活化剂,加料时间1 h对PMMA微球的溶胀效果最好。
The PMMA seed of microsphere was prepared by dispersion polymerization, and monodisperse microspheres were prepared by two-stage swelling procedure. The factors including swelling temperature, size of PMMA seeds activated reagents and feeding times were investigated. When the swelling temperature is 35 ℃, size of PMMA seeded microspheres is 2 μm, EM221 is used as activated reagent and feeding time is 1 h, the good result could be obtained.