Hj. Lee et al., SYNTHESIS AND ELECTROOPTICAL PROPERTIES OF METHACRYLATE POLYMERS CONTAINING HEXYL SULFONE STILBENE CHROMOPHORE, Polymer bulletin, 36(3), 1996, pp. 279-285
Methacrylate polymers bearing pendant stilbene chromophore containing
4'-dialkylamino electron donor and 4-hexylsulfonyl electron acceptor h
as been synthesized. Owing to the introduced flexible alkyl chain to t
he NLO chromophore terminal group, soluble polymers was obtained up to
64 mol % of chromophore monomer portion in the copolymer. These amorp
hous polymers exhibited good film-forming abilities, thermal stability
, and excellent optical clarity. The electrooptic coefficient (r(33))
as high as 6.4 pm/V were measured at 1.3 mu m by reflection method. Th
ese polymers were easily photobleached by irradiation of light at 350
similar to 450 nm wavelength for lateral confinement in channel wavegu
ide.