Faculty of Agriculture, Shimane University
ISSN:0370-940X
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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/1577
Bulletin of the Faculty of Agriculture, Shimane University 10
1976-12-15 発行
木質材料の改良に関する研究(第17報) : オゾン処理木材におけるメタクリル酸メチルの重合
Studies on the Improvement of Wooden Materials(XVII) : Polymerization of Methyl Methacrylate in Ozone-Treated Wood
Onishi, Hirotsugu
Jodai, Susumu
Goto, Teruo
Takahama, Fuminori
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Conditions for the polymerization of methyl methacrylate (MMA) in ozone-treated wood in the presence of water were investigated. The wood meal (20-40 mesh) of heartwood of Hinoki (Chamaecyparis obtusa Sieb. et Zucc.) was treated with oxygen containing 3% ozone. Water, MMA and the wood meal were mixed in this order to initiate polymerization.
The conversion and the grafting efficiency increased as the polymerization temperature was raised and the amount of water increased. They decreased with increasing amount of ozone-treated wood meal. It was recognized that the conversion of 90% and the grafting efficiency of 60% can be achieved under the following conditions :
The time of ozone treatment : 2 hours.
The amount of water, MMA and ozone-treated wood meal : 10 ml, 5 ml and 0.3g, respectively.
The polymerization temperature and time : 90℃ and 3 hours.
The conversion and the grafting efficiency increased as the polymerization temperature was raised and the amount of water increased. They decreased with increasing amount of ozone-treated wood meal. It was recognized that the conversion of 90% and the grafting efficiency of 60% can be achieved under the following conditions :
The time of ozone treatment : 2 hours.
The amount of water, MMA and ozone-treated wood meal : 10 ml, 5 ml and 0.3g, respectively.
The polymerization temperature and time : 90℃ and 3 hours.
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