Monodisperse latex with variable glass transition temperature and particle size for use as matrix starting material for conductive polymer composites

J. C. Grunlan, Y. Ma, M. A. Grunlan, W. W. Gerberich, L. F. Francis

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

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 languageEnglish (US)
Pages (from-to)6913-6921
Number of pages9
JournalPolymer
Volume42
Issue number16
DOIs
StatePublished - Jul 2001

Keywords

  • Ethynylated aromatic Schiff bases polymerization
  • Substituted polyacetylenes
  • Transition metal catalysts

Fingerprint Dive into the research topics of 'Monodisperse latex with variable glass transition temperature and particle size for use as matrix starting material for conductive polymer composites'. Together they form a unique fingerprint.

Cite this