Study of radiation-induced polymerization of vinyl monomers adsorbed on inorganic substances. III. Effect of p-benzoquinone and ammonia on radiation-induced polymerization of styrene adsorbed on silica gel

Journal Article · Wed Jan 01 00:00:00 EST 1975 · J. Polym. Sci., Polym. Chem. Ed.; (United States)

DOI:https://doi.org/10.1002/pol.1975.170130914· OSTI ID:7251622

Fukano, K; Kageyama, E

In order to elucidate the mechanism of radiation-induced polymerization of styrene adsorbed on silica gel, the effect of p-benzoquinone and ammonia was investigated. The high molecular weight GPC peaks of both graft polymers and homopolymers decreased with increasing p-benzoquinone concentration, while the low molecular weight peaks of both graft copolymers and homopolymers decreased with increasing ammonia concentration. The results indicate that the high molecular weight peaks of both graft and homopolymers are formed as a result of a radical mechanism and that the low molecular weight peaks of both types of polymers are formed by a cationic mechanism. In formation of both graft polymers and homopolymers both radical and cationic polymerization take place at the same time.

• Research Organization: Japan Atomic Energy Research Inst., Gumma
• OSTI ID: 7251622
• Journal Information: J. Polym. Sci., Polym. Chem. Ed.; (United States), Vol. 13
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
STYRENE
CHEMICAL RADIATION EFFECTS
AMMONIA
BENZOQUINONES
CHEMICAL REACTION KINETICS
MOLECULAR WEIGHT
POLYMERIZATION
SILICA GEL
ADSORBENTS
AROMATICS
CHEMICAL REACTIONS
CHEMISTRY
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
KINETICS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
QUINONES
RADIATION CHEMISTRY
RADIATION EFFECTS
REACTION KINETICS
400600* - Radiation Chemistry