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Liquid-crystalline ordering in the solution of partially flexible macromolecules

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  • Khokhlov, A.R.
  • Semenov, A.N.

Abstract

The liquid-crystalline ordering in the solution of persistent chains which length, L, is comparable with the length of the effective Kuhn segment, l, is considered by means of a generalization of the Onsager method. The orientational entropy for this case is calculated using the method proposed by I.M. Lifshitz (for another problem) in 1968. It is shown that a slight flexibility of the persistent chain is sufficient for the complete change in the properties of the liquid-crystalline transition: for example, at Ll∼0.1 these properties are more similar to those which are characteristic for the semi-flexible limit (Ll⪢1), than for the rigid rod limit (Ll⪡1), although at such Ll the geometric form of the macromolecule is much closer to the rodlike one.

Suggested Citation

  • Khokhlov, A.R. & Semenov, A.N., 1982. "Liquid-crystalline ordering in the solution of partially flexible macromolecules," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 112(3), pages 605-614.
    • Handle: RePEc:eee:phsmap:v:112:y:1982:i:3:p:605-614
    DOI: 10.1016/0378-4371(82)90199-6
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    1. Khokhlov, A.R. & Semenov, A.N., 1981. "Liquid-crystalline ordering in the solution of long persistent chains," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 108(2), pages 546-556.
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    Cited by:

    1. Rill, Randolph L. & Strzelecka, Teresa E. & Davidson, Michael W. & Van Winkle, David H., 1991. "Ordered phases in concentrated DNA solutions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 176(1), pages 87-116.

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    1. Rill, Randolph L. & Strzelecka, Teresa E. & Davidson, Michael W. & Van Winkle, David H., 1991. "Ordered phases in concentrated DNA solutions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 176(1), pages 87-116.

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