Effect of PVA in dispersion polymerization of MMA

被引：52

作者：

Kim, OH ^{[1
]}

Lee, K ^{[1
]}

Kim, K ^{[1
]}

Lee, BH ^{[1
]}

Choe, S ^{[1
]}

机构：

[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea

来源：

POLYMER | 2006年 / 47卷 / 06期

关键词：

dispersion polymerization; monodispersity; methylmethacrylate;

D O I：

10.1016/j.polymer.2006.01.025

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Monodisperse poly(methylmethacrylate) microspheres having a diameter of 2.6 mu m and a molecular weight of 102.277 g/mol with 5.3% of the C-v (the coefficient of variation) were synthesized by the dispersion polymerization using hydrophilic polyvinylalcohol (PVA) in methanol/water mixture media. Then, the structural verification of the synthesized materials is confirmed by using H-1 NMR and FT-IR spectroscopy. The effects of PVA and the polymerization parameters such as the initiator, monomer and stabilizer concentrations. and the reaction time on the characteristics of the final particles were studied. Thus, the role of PVA in the dispersion polymerization of MMA is not only a steric stabilizer by physically adsorbed in methanol phase, but also a colloid protective to give relatively monodisperse polymer particles in water phase, simultaneously. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1953 / 1959

页数：7

共 15 条

[1]

Barrett KEJ, 1975, DISPERSION POLYM ORG

[2] SURFACE PRETREATMENT OF ZINC AND ITS ADHESION TO EPOXY-RESINS [J].