ISSN:
0142-2421
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) has been employed to monitor the chemical changes occurring with continuous UV irradiation in the surface region of neat films of polystyrene and the copolymer of styrene and 2-(2-hydroxy-3-vinyl-5-methylphenyl)benzotriazole (HVB, 2% w/w). Previous conclusions concerning the relative rates of oxygen uptake of these systems have been confirmed. New data are presented that enable delineation of two different surface reactions and demonstrate activation of the polymer surface by HVB with respect to polymer degradation as well as oxygen uptake. Some conclusions are drawn concerning the mechanism by which this activation is achieved.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/sia.740180906
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