| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
고분자 가공/복합재료 |
| 제목 |
Effects of Solvent on the Intercalation and Exfoliation Behavior of Clay in the Synthesis of Poly(methylmethacrylate)/Montmorillonite Clay Nanocomposites |
| 초록 |
PMMA/MMT nanocomposites were synthesized via free radical polymerization of MMA in the presence of alkyl ammonium substituted polysilsesquioxane(POSS) surfactant-modified clay and AIBN in scCO2/EtOH. The reactions were also conducted by adding a water to observe the solvent effects for the intercalation and exfoliation behavior of the nanocomposites. MMT clay was initially cation exchanged with the surfactant to enhance its hydrophobicity and to expand the interlamellar spaces of silicate platelets. Organophilization with the surfactant and water molecules reduce surface energy of the clay which promotes miscibility of the nanocomposites. The intercalation and dispersion of clay were quantified by both XRD and TEM. The alkyl ammonium substituted POSS surfactant not only acts as a suitable surface modifier but also enhances thermal and mechanical properties. ifferent distribution of clay also plays an important role in physical properties. TGA and DSC were employed to investigation. |
| 저자 |
Md. Daloar Hossain, 황하수, 배재현, 임권택
|
| 소속 |
부경대 |
| 키워드 |
Poly(methylmethacrylate); montmorillonite clay; nanocomposites; polysilsesquioxane; exfoliation.
|
| E-Mail |
|
