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Thermodynamic stability of mixtures containing statistical copolymers, 1. Phantom-lattice treatment of chemically modified polymers
Makromolecular Chemie (1989)
  • William MacKnight, University of Massachusetts Amherst
Abstract
For two statistical copolymers containing the same repeating units to be miscible their chemical compositions should not differ by more than a maximum tolerable composition difference. Measurements of the miscibility behaviour of mixtures of brominated polystyrenes by Karnbour et al. can be interpreted if the small changes in molecular volume caused by bromination are taken into account with a simple extension of Scott's model. The feature is in accordance with the well-known sensitivity of polymer blend miscibility to small changes in chain length. The relatively small extension of the model already changes the value of the pair­interaction parameter (chi) drastically, which exemplifies the necessity to let chi values in literature be accompanied by precise information about the model used in the evaluation. 
Keywords
  • Thermodynamic stability,
  • mixtures,
  • statistical copolymers,
  • Phantom-lattice,
  • chemically modified,
  • polymers
Disciplines
Publication Date
1989
Citation Information
William MacKnight. "Thermodynamic stability of mixtures containing statistical copolymers, 1. Phantom-lattice treatment of chemically modified polymers" Makromolecular Chemie Vol. 190 (1989) p. 419 - 426
Available at: http://works.bepress.com/william_macknight/178/