abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 04일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제114회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Small Angle X-ray Scattering study of the lamella phase separation for alcohol binary mixture

등록일
2014년 8월 28일 14시 30분 25초
접수번호
0987
발표코드
PHYS.P-417 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 15일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
서성욱, 정병서, 조한국*
인천대학교 화학과, Korea
Splitting of the scissoring as well as rocking band has been considered a useful probe for micro-phase separation of a binary mixture of long chain hydrocarbons. The extent of splitting reflects the size of the micro-domain, which grows with time, and the earlier reports show that the difference in chain length should be at least 4 to observe a band split. In contrast, The IR spectra of alcohol-n-alkane mixtures indicate immediate phase separation regardless of the difference in length and mixing ratio. While chain disorders increase with approaching to the melting point, the spectra suggest that phase separation still remains. The SAXS (small angle X-ray scattering) method is also newly employed to investigate the lamellar structures from the Q-vector spectra. It is interesting that two Q-vector points (lamellar thicknesses) are observed from an alcohol binary mixture, instead of three (three possible combinations via hydrogen bonding of two long chain alcohols). Noticeable changes in the Q-vector spectra also occur after annealing (50℃, below the melting point). The results along with our interpretation will be presented.

상단으로