A series of surfactant-free monodisperse latices were prepared with varying glass transition temperatures (Tg) and particle sizes using methyl methacrylate (MMA) and butyl acrylate (BA) monomers. Latices with Tgs between -11 and 105°C were synthesized by varying the MMA to BA ratio during batch polymerization. The particle size of latices with a Tg of 19°C was varied by independently changing temperature, initiator concentration and ionic strength of the aqueous reaction medium. These latices provide a model matrix starting material for carbon black-filled electrically conductive polymer composites. When latex with a number average particle diameter (Dn) of 930 nm is substituted for a solution-based polymer the percolation threshold of the final conductive composite drops from 14.5 to 1.45 vol% carbon black.
|Original language||English (US)|
|Number of pages||9|
|State||Published - Jul 2001|
Bibliographical noteFunding Information:
The authors would like to acknowledge the Eastman Kodak Company, the University of Minnesota Graduate School, through its Doctoral Dissertation Fellowship, and the Industrial Partnership for Research in Interfacial and Materials Engineering (IPRIME) along with its industrial supporters, through its Coating Process Fundamentals Program, for financial support of this research. The authors also wish to thank Francisco Bloom for assistance with latex synthesis and Erin Arlinghaus for assistance with minimum film formation temperature measurement.
Copyright 2018 Elsevier B.V., All rights reserved.
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