STUDY OF PHOTOCHEMICAL-REACTIONS OF CONIFERYL ALCOHOL - II - COMPARATIVE STRUCTURAL STUDY OF A PHOTOCHEMICAL AND ENZYMATIC POLYMER OF CONIFERYL ALCOHOL
K. Radotic et al., STUDY OF PHOTOCHEMICAL-REACTIONS OF CONIFERYL ALCOHOL - II - COMPARATIVE STRUCTURAL STUDY OF A PHOTOCHEMICAL AND ENZYMATIC POLYMER OF CONIFERYL ALCOHOL, Photochemistry and photobiology, 68(5), 1998, pp. 703-709
The structure of the polymer synthesized by UV irradiation of conifery
l alcohol was studied, using UV-visible, Raman, IR, LH-NMR and C-13-NM
R spectroscopy. The photochemical polymer was compared with the struct
ure of the polymer obtained by peroxidase-catalyzed polymerization of
coniferyl alcohol. General similarity of the spectra of the two polyme
rs was shown. However, differences in the fine structure of particular
regions of the NMR spectra, as well as in certain bands in the Raman
and IR spectra, could be explained through the various bond types and
organization within the polymers. These results are consistent with mo
lecular mass distribution of the polymers. Two fractions of enzymatic
polymer correspond to the main two fractions of photochemical polymer.
The later polymer has additional fractions that are probably the main
reason for the observed spectral differences.