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Show moreSecond-order nonlinear optical (NLO) polymers, which polymers are functionalized with second-order NLO chromophores, offer advantages of large susceptibilities, high laser damage threshold, faster response time, a high density of NLO moieties, versatility of molecular structural modifications, improved processability and relatively higher thermal stability compared with small molecular weight organic materials. The design, synthesis and characterization of novel elastic-polymer containing NLO chiral conjugated chromophores based on the derivatives of chiral camphorquinone, which would be expected to display large three dimensional polarity and more thermal stable NLO optical materials are discussed.
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Show moreThe formation of double-twisted helix in achiral liquid crystal and isoregic chiral smectic C polyesters is presented. Mixing chlorinated and the non-chlorinated banana liquid crystals at an appropriate formulation have lowered the transition temperature of the switchable banana phase. The achiral liquid crystal exhibit a polarization of 50 nC/cm2 in the switchable banana phase. The isoregic chiral polyesters exhibit a smectic C and A phases. Optoelectronic studies of the isoregic chiral smectic C polyesters require a well aligned sample, which the development of an improved methods is in progress.
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