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2,4-Di-(2′-hydroxyethoxy)benzylidenemalononitrile was prepared and condensed with terephthaloyl chloride to yield a novel Y-type polyester containing dioxybenzylidenemalononitrile, nonlinear optical chromophores as part of the polymer backbone. The resulting polymer was soluble in common organic solvents such as acetone and N,N-dimethylformamide and displayed thermal stability up to 300°C with a glass-transition...
3,4-Di-(2′-hydroxyethoxy)benzylidenemalononitrile (3) was prepared and condensed with terephthaloyl chloride and adipoyl chloride to yield novel Y-type polyesters (4–5) containing 3,4-dioxybenzylidenemalononitrile groups as NLO-chromophores, which constituted parts of the polymer main-chains. The resulting polymers 4–5 are soluble in common organic solvents such as acetone and N,N-dimethylformamide...
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