Transport properties of a side-chain liquid-crystalline polymer. Poly(4-acryloyloxy biphenyl)

The transport properties of a side‐chain liquid‐crystalline polymer forming a smectic A phase have been investigated using dichloromethane as a permeant. Samples differing in the isotropization enthaoly were analyzed. A. Correlation between this thermal parameter and sorption has been found, while t...

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Bibliographic Details
Published in:Journal of polymer science. Part B, Polymer physics Polymer physics, 1991-08, Vol.29 (9), p.1163-1168
Main Authors: Vittoria, V., Russo, R., De Candia, F., Magagnini, P. L., Bresci, B.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surface properties
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Summary:The transport properties of a side‐chain liquid‐crystalline polymer forming a smectic A phase have been investigated using dichloromethane as a permeant. Samples differing in the isotropization enthaoly were analyzed. A. Correlation between this thermal parameter and sorption has been found, while the diffusion coefficient is substantially the same in all samples. The results obtained can be explained in terms of a biphasis model in which a disordered permeable phase is present within the liquid‐crystalline phase, which is impermeable to the diffusant molecules.
ISSN:0887-6266
1099-0488
DOI:10.1002/polb.1991.090290915