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High-impact polystyrene, degradation

The photo- and thermooxidative degradation of different grades of high-impact polystyrene containing various amounts of polybutadiene were studied using FTIR spectroscopy. All samples gave similar oxidation products, but in varying quantities. The results are discussed. 17 refs. [Pg.108]

The rubber-modified aromatic polymeric materials, for example, high-impact polystyrene (HIPS) and acrylonitrile-butadiene-styrene (ABS) are the least stable because of the rapid photooxidation of the rubber component, which sensitizes the polymer to further oxidation. Diene-based rubbers are also susceptible to degradation by ozone, which causes chain scission of the main-chain... [Pg.322]

Ghaffar A, Scott GA, Scott G. The chemical and physical changes occurring during UV degradation of high impact polystyrene. Eur Polym J 1976 11 271-275. [Pg.180]

Parres, F. Sdnchez, L. Balart, R. Lopez, J. Determination of the photo-degradation level of high-impact polystyrene (HIPS) using pyrolysis-gas chromatography-mass spectrometry. J. Anal. Appl. Pyrol. 2007, 78, 250-256. [Pg.1859]

X. X. Zheng and C. A. Wilkie, Nanocomposites based on poly(epsilon-caprolactone) (PCL)/clay hybrid Polystyrene, high impact polystyrene, ABS, polypropylene and polyethylene. Polymer Degradation and Stability, 82 (2003), 441-50. [Pg.358]

Hace, D., Kovacevic, V., Pajc-Liplin, D. Thermally Stimulated Oxidative Degradation of High Impact Polystyrene With Nitric Acid, Polymer Engineering and Science, 36 (1996) 8, p. 1140 - 1151... [Pg.1392]

As block copolymers are still rather expensive materials, it may be advantageous to use them as additives to important industrial polymers. In this domain, possibilities are extremely numerous and diverse. They include an improvement of chemical properties such as resistence to degradation agents, or rheological properties such as adhesion of vinylic paints, high impact properties of conventional thermoplastics, or a compatibilization of polyolefins, polystyrene and poly(vinyl chloride) allowing the reuse of polymeric waste products. The above examples illustrate the great intrinsic potential of block copolymers in the quest of new materials with specific properties. [Pg.87]

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Impact polystyrene

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