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Photorefractivity formulations

Chart 4.2 Low molar mass compounds employed in photorefractive formulations. [Pg.107]

An organic photorefractive system has to contain different functional groups providing for the generation, transport, and trapping of charge carriers. Moreover, a plasticizing function is required for certain formulations. Apart from the... [Pg.105]

Because of the versatility of the polyurethane system it is possible to introduce comonomers which can affect the physical properties of the derived polymers. For example, photo cross-linkable polyurethanes are formulated using 2,5-dimethoxy-2,4 -diisocyanato stilbene as a monomer (76). Comonomers, having an azoaromatic chromophore, are used in optical bleaching applications (77), or in the formation of photorefractive polymers (78). The latter random poljnners have second-order nonlinear optical (NLO) properties. Linear poljnners are also obtained from HDI/PTMG and diacetylenic diols. These polymers can be cross-linked through the acetylenic linkages producing a network polymer with properties similar to poly(diacetylenes) (79). [Pg.6680]

See other pages where Photorefractivity formulations is mentioned: [Pg.39]    [Pg.39]    [Pg.39]    [Pg.105]    [Pg.105]    [Pg.106]    [Pg.23]    [Pg.23]    [Pg.39]    [Pg.39]    [Pg.39]    [Pg.105]    [Pg.105]    [Pg.106]    [Pg.23]    [Pg.23]    [Pg.105]    [Pg.107]    [Pg.5644]    [Pg.5654]    [Pg.5654]    [Pg.909]    [Pg.919]    [Pg.919]   
See also in sourсe #XX -- [ Pg.39 ]

See also in sourсe #XX -- [ Pg.23 ]



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