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J. Pączkowski


Spectroscopic and photochemical properties of some polymeric and monomeric derivatives

of p-(N, N-dimethylamino)cinnamic acid


Polimery 1989, No 11, 499


DOI: dx.doi.org/10.14314/polimery.1989.499

Summary

The spectroscopic properties (electronic absorption and fluorescencje spectra) of polystyrene modified with p-(N,N-dimethylamino)cinnamic acid and those of benzyl ester of this acid as a low-molecular-weight model compound have been investigated. It has been found th a t the light sensitive polymer containing the rest of p-(N,N-dimethylamino)cinnamic acid as a light sensitive grouping is characterized by light sensitive properties typical of polycinnamates. Macromolecules of this polymer can be used as a perfect „spectroscopic probe” used in the determination of local changes in viscosity and polarity in dilute solutions of polymers. This is revealed by a hypsochromic shift of the fluorescence band maximum as well as by an increase in the halfwidth of the same band.


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