P-61 常温重合レジンに残留する物質に関する抽出法の開発(生体材料,一般講演(ポスター発表),第66回日本歯科理工学会学術講演会)

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  • P-61 Development of extraction of materials remaining in the autopolymerizing acrylic resin

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The purpose of this study was to develop the solvent extraction method of the residual substances from polymerized base polymers. Polymerized base polymers were dissolved with tetrahydrofuran containing 20 μg/ml hydroquinone, and then aliquots of 50% acetonitrile-H_2O containing 20 μg/ml hydroquinone were added to this solution in order to precipitate the dissolved polymer. The recovery of the residual substances such as MMA, benzoyl peroxide, N,N-dimethyl-p-toluidine, N-methyl-p-toluidine, and 4-aminotoluene was good. It is considered to be a useful method to the residue determination by tetrahydrofuran-acetonitrile system since the stability of the residual substances is good compared to acetone-methanol system.

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