Emulsion polymerisation of MMA employing a chain transfer agent of low environmental impact: ISO-octyl-3-mercaptopropionate

被引：2

作者：

Ronco, Ludmila I. ^{[1
]}

Minari, Roque J. ^{[1
]}

Cian, Lorena ^{[1
]}

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

Gugliotta, Luis M. ^{[1
]}

机构：

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

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

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 2013年 / 91卷 / 04期

关键词：

poly(methyl methacrylate); emulsion polymerisation; molecular weight distribution; chain transfer agent; iso-octyl-3-mercaptopropionate; FREE-RADICAL POLYMERIZATION; MOLECULAR-WEIGHT CONTROL; COMPUTER-SIMULATION; MATHEMATICAL-MODEL; RATE COEFFICIENTS; CALORIMETRIC MEASUREMENTS; INCREASING PRODUCTION; METHYL-METHACRYLATE; REDUCING TRANSIENTS; INDUSTRIAL REACTOR;

D O I：

10.1002/cjce.21777

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The unseeded batch-emulsion polymerisation of methyl methacrylate (MMA) was investigated using the chain transfer agent iso-octyl-3-mercaptopropionate (iOMP), which exhibits a low environmental impact. The commercial iOMP is a mixture of over 10 isomers that proved adequate to control the molecular weights of poly(methyl methacrylate) with a decreasing evolution of both the number- and weight-average molecular weights along the reactions. The iOMP also affects the polymerisation kinetics as a consequence of the lower reactivity of the iOMP radicals with respect to the MMA-ended radicals. Experimental results were interpreted with the help of a first principles mathematical model. (c) 2013 Canadian Society for Chemical Engineering

引用

页码：599 / 605

页数：7

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