Free Energy of Rigid Rods: Contribution of Rotational Entropy to Frank Elasticity

Jun Ichi Fukuda, Hiroshi Yokoyama

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)

抄録

We apply the density functional formalism developed by the present authors [J. Fukuda and H. Yokoyama: J. Chem. Phys. 115 (2001) 4930] for the calculation of the free energy of rigid rods as a functional of the compositional scalar order parameter φ and the orientational order parameter of second-rank tensor Qij We model rigid rods as semiflexible wormlike chains with infinite bending elasticity and the exact expression for the entropic part of the free energy up to the second order in the gradients can be obtained. Discussion is devoted to the contribution of rotational entropy to Frank elasticity. Although none of the previous molecular theories for the Frank elasticity of liquid crystals has taken rotational entropy into account, our results indicate that rotational entropy can give a non-negligible contribution to Frank elasticity.

本文言語英語
ページ(範囲)1463-1470
ページ数8
ジャーナルjournal of the physical society of japan
71
6
DOI
出版ステータス出版済み - 6月 1 2002
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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