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제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Preparation of Intercalative Layer Nanocomposites of Dipeptide Molecules and Montmorillonite

등록일
2014년 8월 28일 15시 49분 17초
접수번호
1145
발표코드
MAT.P-1125 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
변미림, 윤주영1, 최진주1, 한양수1,*
(주)세일에프에이 연구소, Korea
1(주)나노스페이스 연구소, Korea
Intercalative layered nanocomposites of expandable clay (montmorillonite, Kunipia G, CEC = 119 mequiv./100g) and dipeptide molecules were prepared by intercalation reaction in an aqueous solution. 4 kinds of dipeptide compounds (KJ-A~D) were used as guest molecules. In the typical preparation, clay particles were preswelled at first in aqueous solution, then dipeptide molecules of 3 times excess of CEC were added into the clay suspension solution, and then reacted at 60 ℃ for 4 hours. It was observed that the dipeptide molecules are easily intercalated between the silicate layers to form dipeptide-silicate layer complexes with the basal spacing (d001) of 13.5 ~ 13.8 Å. Upon washing with deionized water a partial deintercalation of dipeptide molecules were observed, leading to a collapse of ordered stacking structure. It was also found that the solution pH played an important role in intercalation and deintercalation of guest molecules due to the zwitterionic nature of dipeptide molecules

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