Preparation of narrow-dispersion or monodisperse polymer microspheres with active hydroxyl group by distillation-precipitation polymerization

被引：26

作者：

Bai, F ^{[1
]}

Li, R ^{[1
]}

Yang, XL ^{[1
]}

Li, SN ^{[1
]}

Huang, WQ ^{[1
]}

机构：

[1] Nankai Univ, Inst Polymer Chem, Minist Educ, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China

来源：

POLYMER INTERNATIONAL | 2006年 / 55卷 / 03期

关键词：

divinylbenzene; ethyleneglycol dimethacrylate; hydroxyethyl methacrylate; monodisperse microspheres; hydroxyl group; distillation-precipitation polymerization; morphology; loading capacity;

D O I：

10.1002/pi.1963

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Narrow-dispersion or monodisperse polymer microspheres with active hydroxyl groups were prepared by distillation-precipitation polymerization in the absence of any stabilizer. The monomer hydroxyethyl methacrylate (HEMA) was copolymerized with either commercial divinylbenzene (DVB) (containing 80% of DVB isomers) or ethyleneglycol dimethacrylate (EGDMA) as crosslinker by distillation-precipitation polymerization technique with 2,2'-azobisisobutyronitrile (AIBN) as initiator in neat acetonitrile. The effects of the crosslinker and the crosslinking degree on the morphology and the loading of the active hydroxyl group of the resultant microspheres were investigated. The agitation caused by distilling off a portion of the polymerization solvent during the polymerization avoided coagulation and resulted in the narrow-dispersion or monodisperse polymer microspheres for the distillation precipitation technique. (C) 2005 Society of Chemical Industry.

引用

页码：319 / 325

页数：7