Transport properties of a thermotropic liquid‐crystalline polymer with the mesogenic group in the main chain were analyzed. Different samples were examined as films obtained by pressure molding and rapid quenching to 0°C. Thermal and transport parameters of the quenched films were measured. The results show that the isotropization enthalpy and sorption coefficient are interdependent, while the diffusion coefficient is substantially constant in all the samples analyzed. These results suggest that the permeable component behaves in the same way in the different samples but is present in different amounts, the transport phenomena occurring in amorphous, or less ordered, interphase regions within impermeable mesomorphic and crystalline domains.
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Candia et al. (1990) studied this question.
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