UV-INDUCED GRAFT POLYMERIZATION ON SURFACE UNDER HIGH-POWER UV IRRADIATION AND THE PROPERTIES OF THE SURFACE-GRAFTED POLYMER
Abstract
UV-induced graft polymerization of acrylic acid on the polypropylene film surface under high-power (750 mW/cm2 ) irradiation from UV-LEDs was investigated. The maximum amount of grafted polymer was reached in 30 s, while using low-power irradiation (10–15 mW/cm2 ) takes tens of minutes for the same amount of product. IR FTIR spectroscopy with different radiation penetration depth reflection elements of ZnSe–45° и Ge–45° showed the grafted polymer to be formed in a thin surface layer without any significant insertion throughout the film. Contact angle for water showed a minimum (21°) at 15 s of UV-irradiation time at small amounts of grafted polymer.
About the Authors
A. A. Gorbachev
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Junior researcher
Belarus
Junior researcher
T. M. Sheipak
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Junior researcher
Belarus
Junior researcher
A. V. Danilchyk
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Researcher
Belarus
Researcher
E. V. Lutsenko
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Ph. D. (Physics and Mathematics), Associate Professor, Senior researcher
Belarus
Ph. D. (Physics and Mathematics), Associate Professor, Senior researcher
O. N. Tretinnikov
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
D. Sc. (Physics and Mathematics), Head of Laboratory
Belarus
D. Sc. (Physics and Mathematics), Head of Laboratory
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