ポリメチルメタアクリレート中のモノマーの定量

概要

論文の詳細を見る
The importance of problem of the determination of residual monomer in polymethyl methacrylate is increasing and it is desirable to find a simple and rapid method for its analysis. The following method is to dissolve the sample in glacial acetic acid, to which water is added, and distill to obtain a liquid containing the monomer, water and acetic acid, and the distilate is used for ultraviolet spectroscopic analysis. The acetic acid contained therein is estimated by titration with alkali and the value obtained from spectroscopic analysis is corrected. This method gives a simple and good reproducible result, provided that the necessary caution is taken as it has absorption in ultraviolet zone, also it gives an error when the sample contained some substance which distill off during the distillation, and this problem has been discussed.
社団法人日本分析化学会の論文