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Effect of Sequence Distribution on the Miscibility of Polymer/Copolymer Blends
Macromolecules (1985)
  • William MacKnight, University of Massachusetts Amherst
  • Anna C. Balazs
  • Isaac C. Sanchez
  • Irving Epstein
  • F. E. Karasz
Previous theories describing the phase behavior of copolymer blends have ignored the sequence distribution of monomer unit.a in the copolymer. We introduce a parameter, 8, that describes the binary sequence distribution of the monomers in a copolymer chain. By varying 8, we can describe a block, random, or alternating copolymer. It is assumed that the interaction energy between a monomer of homopolymer C and the monomer A (or B) in the copolymer AB is mediated by the nearest neighbors chemically bonded to the A (or B) structural 
unit. It is found that the sequence distribution may significantly affect the degree of compatibility between the polymers AB and C. For a fixed composition, there is an optimal range of(} values (or sequence distributions) 
for which the C/AB system is miscible. 
  • Sequence,
  • Distribution,
  • Miscibility,
  • Polymer,
  • Copolymer,
  • Blends
Publication Date
Citation Information
William MacKnight, Anna C. Balazs, Isaac C. Sanchez, Irving Epstein, et al.. "Effect of Sequence Distribution on the Miscibility of Polymer/Copolymer Blends" Macromolecules Vol. 18 (1985) p. 2188 - 2191
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