Ferroelectric liquid crystalline polysiloxanes designed for high second-order nonlinear susceptibilities

6533b861fe1ef96bd12c42a2

RESEARCH PRODUCT

Ferroelectric liquid crystalline polysiloxanes designed for high second-order nonlinear susceptibilities

Rudolf Zentel Harry J. Coles Erik Wischerhoff Maura Redmond Olivier Mondain-monval

subject

Polymers and Plastics Chemistry Mesogen Organic Chemistry Second-harmonic generation Nonlinear optics Chromophore Condensed Matter Physics Ferroelectricity Crystallography Liquid crystal Phase (matter)Polymer chemistry Materials Chemistry Side chain Organic chemistry Physical and Theoretical Chemistry

description

Ferroelectric liquid crystalline (FLC) copolysiloxanes containing suitable comonomers («NLO-chromophores») for second harmonic generation (SHG) have been prepared. Their important feature is a donor-acceptor x-system sited perpendicular to the long axis of the side-group moieties in order to adopt the polar ordering of the ferroelectric LC phase. The influcences of the mesogen structure and of the content of NLO-chromophores on the liquid crystalline and ferroelectric properties are studied. The desired chiral smectic C * phase is retained up to 30 mol-% of chromophore. Also, first measurements of second harmonic generation have been performed

year	journal	country	edition	language
1994-05-01	Macromolecular Chemistry and Physics

https://doi.org/10.1002/macp.1994.021950511

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