The structure of the polymer synthesized by UV irradiation of coniferyl alcohol was studied, using UV-visible, Raman, IR, LH-NMR and C-13-NMR spectroscopy. The photochemical polymer was compared with the structure of the polymer obtained by peroxidase-catalyzed polymerization of coniferyl alcohol. General similarity of the spectra of the two polymers 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 molecular 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.
Кључне речи:
coniferyl alcohol / dehydrogenative polymer / UV irradiation / 1H NMR / 13C NMR / IR and Raman spectroscopy
Извор:
Photochemistry and Photobiology, 1998, 68, 5, 703-709
TY - JOUR
AU - Radotić, Ksenija
AU - Todorović, S.
AU - Zakrzewska, Joanna
AU - Jeremić, M.
PY - 1998
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/45
AB - The structure of the polymer synthesized by UV irradiation of coniferyl alcohol was studied, using UV-visible, Raman, IR, LH-NMR and C-13-NMR spectroscopy. The photochemical polymer was compared with the structure of the polymer obtained by peroxidase-catalyzed polymerization of coniferyl alcohol. General similarity of the spectra of the two polymers 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 molecular 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.
PB - American Society for Photobiology
T2 - Photochemistry and Photobiology
T1 - Study of photochemical reactions of coniferyl alcohol. II. Comparative structural study of a photochemical and enzymatic polymer of coniferyl alcohol
EP - 709
IS - 5
SP - 703
VL - 68
DO - 10.1111/j.1751-1097.1998.tb02533.x
ER -
@article{
author = "Radotić, Ksenija and Todorović, S. and Zakrzewska, Joanna and Jeremić, M.",
year = "1998",
abstract = "The structure of the polymer synthesized by UV irradiation of coniferyl alcohol was studied, using UV-visible, Raman, IR, LH-NMR and C-13-NMR spectroscopy. The photochemical polymer was compared with the structure of the polymer obtained by peroxidase-catalyzed polymerization of coniferyl alcohol. General similarity of the spectra of the two polymers 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 molecular 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.",
publisher = "American Society for Photobiology",
journal = "Photochemistry and Photobiology",
title = "Study of photochemical reactions of coniferyl alcohol. II. Comparative structural study of a photochemical and enzymatic polymer of coniferyl alcohol",
pages = "709-703",
number = "5",
volume = "68",
doi = "10.1111/j.1751-1097.1998.tb02533.x"
}
Radotić, K., Todorović, S., Zakrzewska, J.,& Jeremić, M.. (1998). Study of photochemical reactions of coniferyl alcohol. II. Comparative structural study of a photochemical and enzymatic polymer of coniferyl alcohol. in Photochemistry and Photobiology
American Society for Photobiology., 68(5), 703-709.
https://doi.org/10.1111/j.1751-1097.1998.tb02533.x
Radotić K, Todorović S, Zakrzewska J, Jeremić M. Study of photochemical reactions of coniferyl alcohol. II. Comparative structural study of a photochemical and enzymatic polymer of coniferyl alcohol. in Photochemistry and Photobiology. 1998;68(5):703-709.
doi:10.1111/j.1751-1097.1998.tb02533.x .
Radotić, Ksenija, Todorović, S., Zakrzewska, Joanna, Jeremić, M., "Study of photochemical reactions of coniferyl alcohol. II. Comparative structural study of a photochemical and enzymatic polymer of coniferyl alcohol" in Photochemistry and Photobiology, 68, no. 5 (1998):703-709,
https://doi.org/10.1111/j.1751-1097.1998.tb02533.x . .
