Abstract
The oxidation photoproducts resulting from the UV irradiation of a polyphasic polymer P-E/EPR in conditions of artificial accelerated exposure have been identified by different analytical methods. These methods included FTIR analysis of the polymeric matrix coupled with derivatization reactions. The identification of the low molecular weight photoproducts was carried out by chromatography and mass spectroscopy analysis. It was shown that the oxidation photoproducts were those of the polypropylene phase, which is by far the most oxidizable. Moreover our results showed unambiguously that the formation of the photoproducts was resulting from the oxidation of the tertiary carbon atom, which is consistent with the expected reactivities.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
J.H. Adams, Analysis of the non volatile oxidation products of polypropylene. I. Thermal oxidation, J. Polym. Sci. A-l 8:1077 (1970).
DJ. Carlsson, and D.M. Wiles, The photodegradation of polypropylene films, Macromolecules 2:597 (1969).
J.M. Ginhac, J.L. Gardette, R. Arnaud, and J. Lemaire, Influence of hydroperoxides on the photothermal oxidation of polyethylene, Makromol. Chem. 182:1017 (1981).
J. Lacoste, D. Vaillant, and D. Carlsson, Gamma-photo and thermally initiated oxidation of isotactic polypropylene, J. Polym. ScL, Polym. Chem. Ed 31:715 (1993).
P. Delprat, X. Duteurtre, and J.L. Gardette, Photooxidation of unstabilized and HALS-stabilized polyphasic ethylene-propylene polymers, Polym. Deg. Stab. 50:1 (1995).
R.P. Singh, R. Mani, S. Sivaram, J. Lacoste, and J. Lemaire, Thermooxidative degradation of heterophasic ethylene-propylene copolymers and their fractions, Polym. Int. 32:189 (1993).
J.L. Philippart, F. Posada, and J.L. Gardette, Mass spectroscopy analysis of volatile photoproducts in photooxidation of polypropylene, Polym. Deg. Stab. 49:285 (1995).
P. Delprat, and J.L. Gardette, Analysis of photooxidation of polymer materials by photoacoustic Fourier transform infrared spectroscopy, Polymer 34:933 (1993).
P. Galli, T. Simonazzi, and D. Del Duca, New frontiers in polymer blends: the synthesis alloys, Acta Polym. 39:81 (1988).
J. Lemaire, R. Arnaud, and J.L. Gardette, Le vieillissement des polymères. II. Principes d’étude du photovieillissement, Rev. Gen. Caoutch. Plast. 613:87 (1981).
X. Jouan, and J.L. Gardette, Development of a micro(FTIR) spectrometric method for characterization of heterogeneities in polymer films, Polymer 28:329 (1987).
D.J. Carlsson, R. Brousseau, C. Zhang, and D.M. Wiles, Identification of products from polyolefin oxidation by derivatization reactions, ACS Symp. Ser. 364:676 (1988).
W. Smith, The chemistry of sulfur tetrafluoride, Angew. Chem. Internation. Edit. 1:467 (1962).
C. Wilhelm, and J.L. Gardette, Infrared identification of carboxylic acids formed in polymer photooxidation, J. Appl. Polym. Sci. 51:1411 (1994).
J.L. Gardette, and J. Lemaire, Advantages and limits of hydroperoxide titration methods in solid polymers, J. Polymer Photochem. 7:409 (1986).
J. Lacoste, and D.J. Carlsson, Gamma-, photo-and thermally-initiated oxidation of linear low density polyethylene: a quantitative comparison of oxidation products, J. Polym. Sci, Polym. Chem. 30:493 (1992).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media New York
About this chapter
Cite this chapter
Gardette, JL., Delprat, P. (1998). Photooxidation of Polyphasic Ethylene-Propylene Polymers. In: Prasad, P.N., Mark, J.E., Kandil, S.H., Kafafi, Z.H. (eds) Science and Technology of Polymers and Advanced Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0112-5_51
Download citation
DOI: https://doi.org/10.1007/978-1-4899-0112-5_51
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-0114-9
Online ISBN: 978-1-4899-0112-5
eBook Packages: Springer Book Archive