| 摘要 |
PURPOSE:To enable polymerization in the atmosphere wherein polymerization inhibition due to oxydation is easily caused by performing ultraviolet rays irradiation for a substance which is made to a thin membrane by adding a polymerization initiator to a membrane material having >=3 functionality as a photoreactive group in one molecular and polymerizing and curing it. CONSTITUTION:A membrane material having >=3 functionality as a photoreactive functional group such as acryloyl group, methacryloyl group and vinyl group is used. A silicone compd. is suitable as the membrane material when considering high permeability and stability. As a polymerization initiator, either of a radical reaction type and an ion reaction type may be used and benzoins such as a structure of 1-(4-alkylphenyl)-2-hydroxy-2-methylpropane-1-one is high in polymerization starting efficiency and preferably used and the loadings are 0.1-30wt%. A soln. of this mixture is made to a membrane having <=10mum thickness and polymerization is performed by irradiating ultraviolet rays thereon.
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