Schiff bases of p‐ and m‐aminostyrenes with perfume aldehydes such as citral, cinnamaldehyde, piperonal, vanillin, and ethyl vanillin were synthesized in ethanol in more than 50% yield. Water‐soluble copolymers of these Schiff bases with N‐vinyl‐2‐pyrrolidone or with N,N‐dimethylacrylamide were obtained. The hydrolytic behavior of Schiff base monomers and copolymers to liberate perfume aldehydes was structure dependent, thereby affording chemical release control.
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Kamogawa et al. (1982) studied this question.
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