P25 感温性ポリマーマイクロゲルの膨潤挙動における超音波照射効果

抄録

We examined sono-responsibility of volume phase trasition of cross-linked polyN-isopropylacrylamide (PNIPAM) , P(NIPAM-co-acrylic acid) (PNAM) and P(NIPAM-co-methacrylic acid) (PNMM) microgels, which were produced by surfactant-free emulsion polymerization. The volume phase transition behaviors of these microgels were investigated in the absence and presence of ultrasound (24, 48, 100kHz, 300W). The results shows that the volume phase transition of PNAM was shifted toward higher temperature region by ultrasound exposure, while that of PNMM and PNM was un-changed.