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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 6, Number 1
February 20, 1962 

Studies on the Graft Polymerization-Graft Polymerization of Styrene to Polyvinyl Alcohol by Ultraviolet Light

Graft 중합에 관한 연구-자외선 조사에 의한 Polyvinyl alcohol 과 Styrene 의 Graft 중합에 관하여
Jyong Sup Shim, Kyong Chul Jun

심정섭, 전경철
The graft polymerization of styrene to polyvinyl alcohol using a photosensitizer(benzophenone) and ultraviolet light was studied. Styrene was grafted onto polyvinyl alcohol up to when polyvinyl alcohol was pre-immersed in water and irradiated by ultraviolet light for 24 hours styrene solution of benzophenone(0.01 molarity). The highest percentage of graft obtained in the grafting which was proceeded in the presence of water added immediately before irradiation was 29%. The grafting was proportional to irradiation time within a certain limit of time, i.e., 24 hours, and presumably was initiated at the surface. After a certain degree of grafting a definite maximum was reached. Graft polymer prepared in this experiment showed high resistance to various solvents.
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