SummaryA new chromophore, C1, based on a similar DA-structure of the FTC-chromophore but with a hydroxyalkyl spacer perpendicular to the direction of the dipole moment was synthesized.Both chromophores and the CLD-chromophore were used to prepare high Tg nonlinear optical vinyl polymers. The influence of the position of the spacer on the DA-system on the nonlinear optical response of the resulting polymers was investigated.

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Nonlinear optical vinyl polymers with high glass transition temperature (Tg) were prepared by the functionalization of a fluorinated acrylate‐methyl vinyl isocyanate copolymer. A modified pathway to obtain a thiophene bridged chromophore was worked out. Poled films of the polymers show a fairly high and stable nonlinear optical response, even at elevated temperatures.