Phase behavior and elastic properties of a slightly crosslinked liquid crystalline main-chain polymer

6533b874fe1ef96bd12d5fbb

RESEARCH PRODUCT

Phase behavior and elastic properties of a slightly crosslinked liquid crystalline main-chain polymer

K. H. Hanus B. Stoll Wolfgang Pechhold F. Soergel Rudolf Zentel

subject

chemistry.chemical_classification Phase transition Materials science Polymers and Plastics Isotropy Polymer Shear modulus Colloid and Surface Chemistry Differential scanning calorimetry chemistry Chemical engineering Liquid crystal X-ray crystallography Materials Chemistry Organic chemistry Physical and Theoretical Chemistry Elasticity (economics)

description

A liquid crystalline main-chain polymer was slightly crosslinked by a reaction withα, ω-difunctionalized oligo-siloxanes. Crosslinking does not disturb the liquid crystalline phases, which are identified by x-ray measurements as smecticB and smecticA phases. Measurements of the elastic properties of the crosslinked sample show rubber-like elasticity, even in the liquid crystalline phases. A difference of 7 K was found between cooling and heating for the smecticA/isotropic transition from DSC and mechanical measurements.

year	journal	country	edition	language
1990-03-01	Colloid & Polymer Science

https://doi.org/10.1007/bf01490246

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