ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Single crystals of poly(diacetylene) 1a with p-tosyloxymethyl side groups undergo photooxidation when irradiated with visible light of wavelength 520 nm or less. The presence of molecular oxygen adsorbed on the surface of the crystals and its subsequent photochemical reaction with the polymer were monitored using resonance Raman spectroscopy and the formation of holographic gratings. Reaction products which were identified include hydroperoxy groups, p-toluenesulfonic acid and poly(diacetylene) oligomers. The photooxidation reaction appears to proceed by the “ene” mechanism; the polymer reacts with singlet oxygen produced by energy transfer with the photoexcited poly(diacetylene) backbone.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1989.021901122
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