| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 복합재료 |
| 제목 | Aminosilane functionalization of Montmorillonite clay: Influence of solvents on the degree of intercalation |
| 초록 | Abstract Montmorillonite clay has been treated with 3-aminopropyltriethoxysilane in the presence of various solvents such as water, tetrahydrofuran, ethylene glycol and toluene. Presence of organosilanes in modified clays has been further confirmed from the –CH asymmetric and symmetric stretching of ＞CH2 groups at 2920 and at 2855 cm-1. This interaction between the clay platelet and silane is further supported by 13C and 29Si-nuclear magnetic resonance spectroscopy. Intercalation of aminosilanes between the clay layers have been confirmed from the increase in the average d-spacing obtained from X-ray diffraction (XRD). The two peaks observed in the x-ray diffraction results of clay modified with organosilanes in the water medium confirms the intercalation of amino silane as well as the tactoid formation. Thermogravimetric analysis reveals that the overall grafting yield of silane increases with increase in solvent surface energy. Figure.1 Variation of average d-spacing with the solvent surface energy |
| 저자 | 샨묵하라즈, 류승훈 |
| 소속 | 경희대 |
| 키워드 | Montmorillonite clay; 3-aminopropyltriethoxysilane |
