ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Light scattering was used to evaluate the resulting changes in molecular weight, root-mean-square radius of gyration, degree of polymerization, number of chain scissions per single chain kngth, degree of degradation, specific rate constant, energy of activation, enthalpy, entropy and free energy of activation for the photo-oxidative degradation of poly(2,6-dimethyl-1,4-phenylene oxide) (poly(oxy-2,6-dimethyl-1,4-phenylene)) film, both in the presence and absence of 0,1 wt.-% zinc bis(O,O'-diisopropyldithiophosphate) (ZnDTP) as photostabilizer, undergoing random chain scission and crosslinking processes in the temperature range 313-363 K with light of wavelength 365 nm. The inhibitive action of ZnDTP was discussed from the viewpoint of the amount of gel fraction.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1984.021850111
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