Abstract
Abstract Nonlinear optical chromophores with thiophene groups incorporated in the conjugated system were synthesized. Their second-order nonlinear response was evaluated by electric-field-induced second-harmonic generation (EFISHG) measurements. Off-resonant values μβ 0 as high as 589.10 −48 esu were obtained. Some of the D π A (donor-accepted conjugated) systems were incorporated as side chain into MMA-chromophore functionalised methacrylate copolymers in various concentrations. The copolymers show a decrease in T g with increasing chromophore content.
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