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Journal of the Korean Chemical Society (대한화학회지)
- Volume 6 Issue 1
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- Pages.64-68
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- 1962
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- 1017-2548(pISSN)
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- 2234-8530(eISSN)
Studies on the Graft Polymerization-Graft Polymerization of Styrene to Polyvinyl Alcohol by Ultraviolet Light
Graft 重合에 關한 硏究-紫外線 照射에 依한 Polyvinyl alcohol 과 Styrene 의 Graft 重合에 關하여
- Shim, Jyong-Sup (Department of Chemical Engineering, College of Engineering, Seoul National University) ;
- Jun, Kyong-Chul (Department of Chemical Engineering, College of Engineering, Seoul National University)
- Published : 19620200
Abstract
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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