원문정보
초록
영어
Monoolein (1-Oleoyl-rac-glycerol, MO) cubic phase containing poly(hydroxyethyl acrylate-co-propyl methacrylate-co-methacrylic acid) (P(HEA/PMA/MAA)) in its water channel was prepared by a melt-hydration method. P(HEA/PMA/MAA) whose HEA/PMA/MAA molar ratio was 100/2.8/0, 100/6.0/1.6, and 100/6.2/2.5 was prepared by a free radical reaction, confirmed by 1H NMR spectroscopy. Only P(HEA/PMA/MAA)(100/6.0/1.6) exhibited its lower critical solution temperature around 32.8 ℃. The air water/interfacial measurement revealed that the copolymers were surface-active. On the transmission electron microscopy photo, the copolymer had little effect on the structure of the cubic phase. On the differential scanning calorimetry thermogram, MO cubic phase without the copolymer exhibited its phase transition temperature (PTT) around 68.1 ℃ and the inclusion of copolymer in the cubic phase caused the PTT to decrease by 3 to 4 ℃. The effect on the electric field promoted amaranth (dye) emission on the cubic phase. Release by the electric field was further enhanced in copolymers with a high ratio of MAA.