High solids content emulsions. II. Preparation of seed latices

被引:32
作者
Schneider, M [1 ]
Graillat, C [1 ]
Guyot, A [1 ]
McKenna, TF [1 ]
机构
[1] ESCPE Lyon, CNRS, LCPP, F-69616 Villeurbanne, France
关键词
high solids content emulsion; emulsion polymerization; seed latices; bimodal latices; trimodal latices; semibatch reactor;
D O I
10.1002/app.10512
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The preparation of concentrated seed latices for use in bimodal and trimodal formulations is presented in the current work. Various recipes of surfactant and initiator were tested in order to allow us to control the number of particles produced during the nucleation stage. Following this, a semi-batch feed recipe that combined the use of oil-soluble initiators and pre-emulsified monomer was used to produce well-defined latices having well defined particle size distributions. It was found that the primary concern in maintaining latex stability and favorable viscosity was the reduction of undesirable secondary nucleation. (C) 2002 Wiley Periodicals, Inc.
引用
收藏
页码:1897 / 1915
页数:19
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