Micron-size uniform poly(methyl methacrylate) particles by dispersion polymerization in polar media. IV. Monomer partition and locus of polymerization

被引：16

作者：

Cao, K ^{[1
]}

Li, BG ^{[1
]}

Pan, ZR ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Polymer Sci & Engn, Polymerizat Engn Branch, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1999年 / 153卷 / 1-3期

关键词：

dispersion polymerization; monodisperse polymer particles; monomer partition behavior; poly(methyl methacrylate);

D O I：

10.1016/S0927-7757(98)00441-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

A thermodynamic model has been proposed for the simulation of monomer partition between the particles phase and the continuous phase in the dispersion polymerization of methyl methacrylate in methanol/water medium. The monomer concentrations in the polymer particles and in the continuous phase decrease as the polymerization proceeds. It is strongly dependent not only on initial monomer concentration but also polymerization temperature. The partition coefficient of methyl methacrylate between the polymer particles phase and continuous phase is almost constant in limited range with increasing conversion. There are two polymerization loci in dispersion polymerization, namely the continuous and particle phases, based on the molecular weight and its distribution, and the monomer partition study. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：179 / 187

页数：9

共 37 条

[1]

MONODISPERSE POLYMERIC SPHERES IN THE MICRON SIZE RANGE BY A SINGLE STEP PROCESS [J].

ALMOG, Y ;

REICH, S ;

LEVY, M .

BRITISH POLYMER JOURNAL, 1982, 14 (04) :131-136

[2]

Barret K. E. J., 1975, DISPERSION POLYM ORG

[3]

BRAUNDUP J, 1975, POLYM HDB

[4]

CAO K, 1997, 2 JOINT CHIN US CHEM, P1260

[5]

POLY-ELECTROLYTE STABILIZED LATTICES .1. PREPARATION [J].

CORNER, T .

COLLOIDS AND SURFACES, 1981, 3 (02) :119-129

[6]

FORLY PJ, 1953, PRINCIPLES POLYM CHE, pCH12

[7]

GUILLOT J, 1990, MAKROMOL CHEM-M SYMP, V35, P557

[8]

HIGHLY CROSS-LINKED POLYMER PARTICLES BY DISPERSION POLYMERIZATION [J].

HATTORI, M ;

SUDOL, ED ;

ELAASSER, MS .

JOURNAL OF APPLIED POLYMER SCIENCE, 1993, 50 (11) :2027-2034

[9]

KOBAYASHI S, 1992, MAKROMOL CHEM, V193, P2355

[10]

KOBAYASHI S, 1991, POLYM PREPR JPN, V40, P189

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