| 학회 | 한국고분자학회 |
| 학술대회 | 2004년 가을 (10/08 ~ 10/09, 경북대학교) |
| 권호 | 29권 2호, p.483 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Synthesis and Characterization of the Thermo-Sensitive Hydrogel Based on Methyl 2 – Acetamido Acrylate and Methyl Acrylate |
| 초록 | Developing novel thermo-responsive polymer gels is of great interest because of their many potential applications. A key issue in their development is controlling hydrophilic-hydrophobic balance of the polymer. In this study, we also found that delicate adjustment of hydrophilic-hydrophobic balance is critical in achieving thermosensitivity from methyl 2 – acetamido acrylate (MAA) and methyl acrylate (MA) copolymers, a new chemically cross-linked thermo-responsive polymer gels. We prepared chemically cross-linked MMA-MA copolymers in various monomer compositions using a cross-linker, 2,2'-[(1,4-dioxo-1, 4-butanediyl) diimino] bis (2-propenoic acid). Only the hydrogel containing 18mol% of MAA showed Low Critical Solution Temperature (LCST) behavior at the temperature range between 50 °C and 60 °C as shown in Figure 1. This presentation will further discuss the thermal properties of the MAA-MA hydrogels and the effect of salts, pH, polymerization time, and molar ratio of monomers and the cross-linker on their thermosensitivity of hydrogels. Fig 1. Swelling ratio dependence on temperature for MAA-MA hydrogels with different contents: (a) polymerization time, 72 h; (b) polymerization time, 12 h. |
| 저자 | 박춘호, 백현종, 이장우 |
| 소속 | 부산대 |
| 키워드 | thermosensitive hydrogel; methyl 2 – acetamido acrylate; swelling transition |
