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Real‐time monitoring of laser photochemical reactions of polyvinylchloride
Author(s) -
Sheu L.,
Imen K.,
Allen S. D.
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(20000705)77:1<59::aid-app9>3.0.co;2-o
Subject(s) - irradiation , conjugated system , photochemistry , ultraviolet , materials science , laser , polymer , transmittance , kinetics , double bond , polymer chemistry , wavelength , chemistry , optoelectronics , optics , composite material , physics , quantum mechanics , nuclear physics
The formation of conjugated double bonds in polyvinylchloride (PVC) films by ultraviolet (UV) irradiation is analyzed using an in situ laser‐monitoring technique we have developed to measure changes in transmittance of thin UV‐irradiated PVC films. Conjugated polyenes of different lengths are produced by laser irradiation at 193 and 248‐nm wavelengths. This technique promises to have broader applications in the study of polymer reaction mechanisms and kinetics. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 59–63, 2000