ポリメチルメタアクリレート中の残存モノマーの定量法

概要

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The presence of an unpolymerized monomer is found to be one of an important factor in determining the properties polymethyl methacrylate, especially, quantitative determination of residual monomer in polymerized product became important for studies in the progress of polymerization. Though there are many reports on the determination of the monomer, these methods are not applicable for those containing the monomer less than several percent, therefore, studies are made for estimation of less than one percent of the monomer in polymerized product. Remarkable difference in this method from other known methods is that the double bond is not an object of the test but it is based on the fact of coloration of a complex salt of unsabstituted aliphatic acid ester and Fe<SUP>3+</SUP>, in which selection of solvent, conditions for development of color and its colorimetry, and the effect of the presence of B. P. O. are investigated, and a superior method of determination as low as 0. 05% monomer in theopolymerized product in 25 minutes is established.
社団法人日本分析化学会の論文