Flory theorem for structurally asymmetric mixtures.

Journal Article (Journal Article)

The generalization of the Flory theorem for structurally asymmetric mixtures was derived and tested by direct visualization of conformational transformations of brushlike macromolecules embedded in a melt of linear chains. Swelling of a brush molecule was shown to be controlled not only by the degree of polymerization (DP) of the surrounding linear chains, N(B), but also by the DP of the brush's side chains, N, which determines the structural asymmetry of the mixed species. The boundaries of the swelling region were established by scaling analysis as N(2) < N (B) < N (A)/N, where N (A) is the degree of polymerization of the brush backbone. Experiment and theory demonstrated good agreement.

Full Text

Duke Authors

Cited Authors

  • Sun, FC; Dobrynin, AV; Shirvanyants, D; Lee, H-I; Matyjaszewski, K; Rubinstein, GJ; Rubinstein, M; Sheiko, SS

Published Date

  • September 24, 2007

Published In

Volume / Issue

  • 99 / 13

Start / End Page

  • 137801 -

PubMed ID

  • 17930638

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.99.137801


  • eng