Skip to main content
Article
Studies in the Thermal Diffusion of Copolymers Using Field-Flow Fractionation
JCT, Journal of Coatings Technology
  • Martin E. Schimpf, Boise State University
  • Chad A. Rue, Boise State University
  • G. Mercer, Boise State University
  • L. M. Wheeler, Boise State University
  • P. F. Romeo, Boise State University
Document Type
Article
Publication Date
1-1-1993
Disciplines
Abstract

Earlier studies of copolymer thermal diffusion are extended here to include several new random and block copolymers of polystyrene and polyisoprene. Thermal diffusion coefficients for these polymers in tetrahydrofuran and cyclohexane were obtained by thermal field-flow fractionation (ThFFF). The results confirm the dependence of thermal diffusion (and therefore ThFFF retention) on the radial distribution of monomeric units in the solvated macromolecule. For random copolymers and block copolymers that assume a random configuration, the thermal diffusion coefficient DT is a linear function of copolymer composition. This relationship provides a basis for obtaining compositional information on such copolymers by ThFFF.

Citation Information
Martin E. Schimpf, Chad A. Rue, G. Mercer, L. M. Wheeler, et al.. "Studies in the Thermal Diffusion of Copolymers Using Field-Flow Fractionation" JCT, Journal of Coatings Technology (1993)
Available at: http://works.bepress.com/martin_schimpf/41/