Summary
The aim of this work was to investigate the influence of UV light absorbing additives on the rate of ultra violet light initiated degradation of polystyrene (PS) in solutions. Anthracene (ANT), chloranil (CA) nitrobenzene (TNB) which can form cnarge transfer complexes between each other were used. It was found for illuminated PS-solutions by light of λ=254 nm that independently of the screening efficiency of these compounds, tne formed CT complexes ANT-CA and ANT-TNB cause a decrease of tne rate constant of degradation and of the value of the number average of chain scission S. This effect is due to the energy transfer from the excited polymer chain segments to the low energy triplets of these CT-complexes thus hindering the rection of polymer chain segments with oxygen leading to slowing down of photodegradation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
RANBY, B., and RABEK, J.F., “Photodegradation, Photooxidation and Photostabilization of Polymers”, New York, J.Wiley-Sons (1975)
HELLER, H.J., Europ.Polymer J.Supplement 105 (1969)
GEORGE, G.A., J.Appl.Polym.Sci 18, 117 (1974a)
KLÖPFFER, W., Kunstroffe 60, 385 (1970)
KRYSZEWSKI, M., and NADOLSKI, B., in “Singlet Oxygen-Reactions with Organic Compounds and Polymers”. Ranby, B., and Rabek, J., Ed.New.York, J.Wiley-Sons 1978, p.244
REINISCH, R.F., GLORIA, H.R., and ANDROES, G.M., in “Photochemistry of Macromolecules”, Reinisch, R.F., Ed. Plenum Press, New York 1970 p.
RABEK, J., and RANBY, B., J.Polym.Sci, Polym.Chem.Ed. 12, 273 (1974a)
CARSTENSEN, P., Makromol.Chem., 142, 131 (1971)
DEGORSKI, A., and KRYSZEWSKI, M., J.Chem.Soc.Farad.Trans. II 71, 1503 (1975)
RABEK, J.F., and RANBY, B., J.Polym.Sci.Chem.Ed. 12, 295 (1974b)
GEORGE, G.A., J.Appl.Polym.Sci. 18, 119 (1974b)
KILP, T., and GUILLET, J.E., Macromolecules 10, 90 (1977)
NEMZEK, T.L., and GUILLET, J.E., Macromolecules 10, 94 (1977)
DANUSSO, F., and MARAGLIO, G., J.Polym.Sci, 24, 161 (1957)
COWEL, G.W., and PITTS, J., J.Am,Chem.Soc. 90, 110 (1968)
FOSTER, R., Organic Charge-Transfer Complexes, Academic Press, London (1969)
RABEK J.F., and RANBY, B., Photochem.Photobiol. 28, 557 (1978)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Wandelt, B., Kryszewski, M. & Paradowska, B. Photo-oxidation stabilization of polystyrene by aromatic ultraviolet light absorbers forming charge transfer complexes. Polymer Bulletin 8, 377–384 (1982). https://doi.org/10.1007/BF00264929
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00264929