Compositions – Light transmission modifying compositions
Patent
1991-04-02
1993-05-04
Stoll, Robert L.
Compositions
Light transmission modifying compositions
25229901, 528289, 528290, 528292, 528293, 528295, 528308, F21V 900, C09K 1952, C08G 6724
Patent
active
052079520
ABSTRACT:
Side chain liquid crystalline polymers which exhibit nonlinear optical responses, particularly second and third harmonic generation, are presented together with methods for making them. These polymers derive their nonlinear optical behavior from selective pendant groups that are attached via spacers to the backbone. Several embodiments having chiral structures are subject to efficient dipolar and molecular alignment by electric field poling. The methods disclosed for making these polymers are polycondensation, graft polymerization, and copolycondensation.
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Stoll Robert L.
University of Southern Mississippi
Wu Shean C.
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