Emulsion polymerization of styrene with iso-octyl-3-mercaptopropionate as chain transfer agent

被引：5

作者：

Minari, R. J. ^{[1
]}

Vega, J. R. ^{[1
,2
]}

Gonzalez-Sierra, M. ^{[3
]}

Meira, G. R. ^{[1
]}

Gugliotta, L. M. ^{[1
]}

机构：

[1] Univ Nacl Litoral CONICET, INTEC, RA-3000 Guemes, Santa Fe, Argentina

[2] Univ Tecnol Nacl, Fac Reg Santa Fe, RA-3000 Lavaisse, Santa Fe, Argentina

[3] Univ Nacl Rosario CONICET, IQUIOS, RA-2000 Rosario, Santa Fe, Argentina

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 109卷 / 06期

关键词：

polystyrene; emulsion polymerization; molecular weight distribution; chain transfer agent; isooctyl; 3-mercaptopropionate;

D O I：

10.1002/app.28490

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Four batch and unseeded emulsion polymerizations of styrene were investigated, which included isooctyl 3-mercaptopropionate (iOMP) as chain transfer agent (CTA). This compound was analyzed by C-13 NMR and GC/MS, resulting in a mixture of over 10 isomers. Because of different reactivities of the CTA isomers, the produced polystyrenes presented broad and bimodal molecular weight distributions (MWDs). A mathematical model was adjusted to the measurements, and the measured MWDs were adequately predicted when assuming the CTA as a binary mixture of high but different reactivities. (C) 2008 Wiley Periodicals, Inc.

引用

页码：3944 / 3952

页数：9

共 30 条

[1] EFFECT OF PHENOLS AND AROMATIC THIOLS ON POLYMERIZATION OF METHYL METHACRYLATE
BARTON, SC
RUSSELL, KE
BIRD, RA
[J]. CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1963, 41 (11): : 2737 - &
[2] Brandrup J., 1999, PEOPLE LEARN BRAIN 3
[3] Diffusion limited chain transfer in styrene emulsion polymerization: Use of n-dodecanethiol to regulate molecular weight
Cunningham, MF
Witty, T
[J]. POLYMER REACTION ENGINEERING, 2003, 11 (03): : 519 - 540
[4] Cunningham MF, 2000, J APPL POLYM SCI, V78, P217, DOI 10.1002/1097-4628(20001003)78:1<217::AID-APP260>3.0.CO
[5] 2-3
[6] CHAIN TRANSFER CONSTANTS OF MERCAPTANS IN THE EMULSION POLYMERIZATION OF STYRENE
DIETRICH, BK
PRYOR, WA
WU, SJ
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 1988, 36 (05) : 1129 - 1141
[7] DINABURG VA, 1954, ZH OBSHCH KHIM+, V24, P840
[8] Molecular-weight distribution control in emulsion polymerization
Echevarria, A
Leiza, JR
de la Cal, JC
Asua, JM
[J]. AICHE JOURNAL, 1998, 44 (07) : 1667 - 1679
[9] Gilbert R. G., 1995, Emulsion Polymerization: A Mechanistic Approach
[10] Emulsion polymerization of styrene.: Use of n-nonyl mercaptan for molecular weight control
Gugliotta, LM
Salazar, A
Vega, JR
Meira, GR
[J]. POLYMER, 2001, 42 (07) : 2719 - 2726

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