基于酸碱溶胀法制备微米级中空聚合物微球的研究  

Synthesis of Hollow Polymer Microspheres by Acid Alkali Swelling Method

作　　者：段涛[1] 聂冬梅[1] 竹文坤[1] 唐永建[1] 

机构地区：[1]西南科技大学极端条件物质特性实验室,四川绵阳621010

出　　处：《西南科技大学学报》2012年第2期14-19,共6页Journal of Southwest University of Science and Technology

基　　金：四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地开放基金资助(10zxfk33)

摘　　要：通过种子乳液聚合法制备得到亲水核与核壳结构微球,采用酸碱溶胀法处理核壳微球,制备了微米级中空微球。扫描电子显微镜、透射电子显微镜等测试分析表明,单分散性的亲水核平均直径约465 nm;单分散的核壳微球表面略显粗糙,平均直径约560 nm,疏水壳层厚度约100 nm;微米级中空微球的直径约1.20μm,中空度为21.6%,其单分散性与球形度良好。在亲水核聚合过程中,当m(MMA)/m(MAA)=1.771时,乳液反应体系稳定,得到亲水核微球的单分散性最好。Hollow polymer microspheres in micrometer scale based on latex polymerizing and acid alkai swelling were successfully prepared. As clearly revealed by the Scanning electron microscopy（SEM） and transmission electron microscope（TEM） indicates that the diameter of uniform hydrophilic latex cores is a- bout 465 nm. And the surfaces of core/shell particles with mean diameter 560 nm and thickness of hydro- phobic shell 100 nm are a little rough. The size of monodisperse hollow polymer microspheres is about 1.20μm. Their hollowness is 21.6%. When m （ MMA）/rn （MAA） equals to 1.77 ： 1, the latex sys- tem is stable and the synthesized hydrophilie latex cores show a significant monodisperse.

关 键 词：中空聚合物微球 乳液聚合 酸碱溶胀法 核壳结构 

分 类 号：TQ316[化学工程—高聚物工业]