Mechanistic study on radiation-induced graft polymerization into a fluorinated polymer film

Ko, B.-S.*; Hasegawa, Shin; Hamada, Takashi; Yoshimura, Kimio; Maekawa, Yasunari

The mechanism of radiation-induced graft polymerization (RGP) have been investigated through swelling-induced detachment phenomenon of graft-polymers from poly(ethylene-co-tetrafluoroethylene) films, prepared using various styrene/solvent mixture. This method newly provides various properties of graft polymers, such as number-average molecular weights (Mn), weight-average molecular weights (Mw), polymer distribution index (PDI: 1.9-2.5), and a number of graft polymers (: 7.5 10 $^{17}$ -1.4 10 $^{18}$ g $^{-1}$ ). These results reveal that the effect of monomer concentration is not significant on the RGP kinetics; however, the polarity of the solvents affects the RGP kinetics. Namely, poor solvents delayed initiation of polymerization and induced "gel-effect" significantly, resulting in faster kinetics of RGP.

Language	:	English
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Meeting title	:	15th International Congress of Radiation Research (ICRR 2015)
Held date	:	2015/05
Location (city)	:	Kyoto
Location (country)	:	Japan
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Keywords	:	no keyword
Research Facility	:	コバルト60照射施設
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Registration No. : BB20150380
JAEA Abstracts No. :
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