| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.537 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Structural study of non-stoichiometric polyelectrolyte-surfactant complexes in dried state |
| 초록 | Polyelectrolyte-surfactant complexes have attracted a great deal of interest in the last two decades. The main characteristic of amphiphiles is their tendency to intramolecular microphase separation and spontaneous self-organization into well-defined supramolecular assemblies. The interactions between polyelectrolyte and oppositely charged surfactants are quite strong and can induce complex formation, often resulting in highly ordered structure. Both electrostatic interactions between the charged components and hydrophobic interactions between the polymer backbone and the alkyl chains of the surfactant are important in driving the self-assembly of surfactant molecules to form ordered structures. In the experiments, CTACl(Cetyltrimethylammoniumchloride) and PAA(polyacrylic acid) in the complexes have a hexagonal structure in aqueous solution when the ratio of CTACl and PAA is from 1/3 to 1/8. Our first aim is that CTACl and PAA complexes maintain the hexagonal structure in dried state. For the purpose, we cross-link the unreacted PAA sites(5%~30%) by use of calcium chloride. Because CTACl and PAA complexes have the hexagonal structures, calcium ion doesn’t uniformly penetrate the whole complexes. Now these complexes will be precipitated and dried. And then, removing the core material(CTACl) in the complexes is next experiments. Through the experiments, we will fabricate the porous polymer that porous sizes are uniform. |
| 저자 | 박정규1, 강윤석2, 문식원1, 진왕철1 |
| 소속 | 1포항공과대, 2삼성종합기술원 |
| 키워드 | polyelectrolyte-surfactant complexes; self-assembly; porous polymer |
