Nematic polymers: Excluded-volume effects
โ Scribed by Y. H. Kim; P. Pincus
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1979
- Tongue
- English
- Weight
- 351 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0006-3525
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โฆ Synopsis
Abstract
We present a theoretical model which describes a cooperative helixโcoil liquidโcrystal phase transition. We show that this model predicts a firstโorder phase transition where certain types of chainlike macromolecules in solution make a transition from a nearly coiled to a nearly rigid conformation accompanied by a simultaneous development of longโrange nematicโtype liquid crystalline orientational order. From this model, the phase boundaries between nematic and isotropic phases are obtained as functions of concentration of macromolecules and of other physical parameters.
๐ SIMILAR VOLUMES
An equation for the mean square of the end-toend distance of a polymer chain is proposed. An asymptotic solu-tiOIl Of the QUatiOil iwnfOXnls wvttb plory's resuit and shows tire correlation between Link directions and their ~epr\ra-Con.
Reactions in which tmmobllii molecules are inaclivated by mobile species reprwnt a Iargel-annihilation problem For ideahzed. interpenetrating parttcles the day follows an exact, closed form Based on simulations, we also present the decay for the realistic situation of short-range repulsive mteractio