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Ultraviolet‐induced graft reaction of quinoid compounds onto polypropylene films: Effect of synthesis conditions on hydroquinone‐ g ‐polypropylene
Author(s) -
Chun HeungJae,
Beard Richard B.
Publication year - 1995
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/app.1995.070561112
Subject(s) - benzophenone , polypropylene , hydroquinone , yield (engineering) , photosensitizer , materials science , polymer chemistry , surface tension , chemistry , nuclear chemistry , ultraviolet , photochemistry , composite material , organic chemistry , physics , optoelectronics , quantum mechanics
The liquid‐phase graft reaction of hydroquinone (HQ) was carried out onto the surface of medical‐grade polypropylene (PP) films with the photosensitizer, benzophenone (BP). The effects of various reaction conditions on the graft yield of the samples and the changes in physicochemical properties of the surface of the samples were determined by FTIR/FMIR and surface tension measurements. As BP concentration was increased, the graft yield increased up to a maximum at 2.5 wt % of BP and then decreased. Graft yield was increased with irradiation time and HQ concentration before leveling at 3.5 wt %, in 150 min. The surface tension of samples were increased of graft yield up to 37 dyn/cm. © 1995 John Wiley & Sons, Inc.