3-(4-Bromophenyl)-5-(4-hydroxyphenyl)isoxazole: a versatile, new molecular building block for side-chain liquid crystal oligomers and polymers

doi:10.1007/s00289-015-1529-7

Paper

3-(4-Bromophenyl)-5-(4-hydroxyphenyl)isoxazole: a versatile, new molecular building block for side-chain liquid crystal oligomers and polymers

Published Apr 1, 2016 · G. D. Vilela, T. H. Fernandes, R. R. D. Rosa

Polymer Bulletin

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Abstract

AbstractThe synthesis and liquid crystalline behaviour of new comb-shaped methacrylate oligomers, derived from a new key intermediate in the synthesis of heterocyclic liquid crystals, i.e., 3-(4-bromophenyl)-5-(4-hydroxyphenyl)isoxazole, are reported. These new thermotropic liquid crystals exhibit a smectic A mesophase (SmA) above a soft crystal phase (CrE). The new methacrylate oligomers were synthesized by free radical polymerization of the corresponding monomers. Additionally, one main-chain liquid crystal polymer (MCLCPs) was prepared using a Mizoroki–Heck polymerization.Graphical abstract3-(4-Bromophenyl)-5-(4-hydroxyphenyl)isoxazole (2) is a new key intermediate in the synthesis of polymer and non polymer ordered liquid crystal phase.

Study Snapshot

3-(4-bromophenyl)-5-(4-hydroxyphenyl)isoxazole is a versatile new molecular building block for side-chain liquid crystal oligomers and polymers, with potential applications in thermotropic liquid crystals.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

3-(4-Bromophenyl)-5-(4-hydroxyphenyl)isoxazole: a versatile, new molecular building block for side-chain liquid crystal oligomers and polymers

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