서지주요정보
PMMA-MEK-Methanol 삼성분계 고분자용액의 상태도와 임계영역에서의 미세구조와 물성 = Phase diagrams of ternary PMMA-MEK-Methanol polymer solutions, their microstructures and properties
서명 / 저자 PMMA-MEK-Methanol 삼성분계 고분자용액의 상태도와 임계영역에서의 미세구조와 물성 = Phase diagrams of ternary PMMA-MEK-Methanol polymer solutions, their microstructures and properties / 반용병.
저자명 반용병 ; Ban, Yong-Byung
발행사항 [서울 : 한국과학기술원, 1987].
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소장정보

등록번호

4104624

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8715

SMS전송

도서상태

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반납예정일

초록정보

The phase diagrams and the critical point of poly(methylmethacrylate) / methyl ethyl ketone / methanol systems were determined by measuring turbidities and viscosities, and microstructures near the phase separation regions and at the plait point were also observed by the electron microscope of the samples prepared from rapid freeze-drying. The turbidity measurements titrating precipitant (methanol) were performed on the polymer solutions with three different molecular weights of 42000, 96000 and 416000. Thus the concentrations of the phase separations and the extent of turbidity were determined. At the concentrations of a strongly turbid condition for each titration path, the maximum turbidity was observed near the plait point and the approximated linear behaviour of the relative intensity was shown in a log-log plot with the scaling exponent. In the single phase region of the phase diagram at 40℃, the viscosities of dilute solutions were also determined for the polymer with molecular weight of 96000 and the maximum viscosities along the paths of fixed polymer concentrations were obtained. For the rapid freeze-dried samples near the phase separation regions, electron micrographs show the large interspatial microstructures near critical solution but very different in regions far from plait point and it is responsible for the divergence of turbidities and viscosities.

서지기타정보

서지기타정보
청구기호 {MCE 8715
형태사항 ix, 71 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : A, 임계지수들의 실험적인 값과 관계식. - B, 고분자의 농도와 부피분율의 관계. - C, 실험경로 B 에 따른 점도 data
저자명의 영문표기 : Yong-Byung Ban
지도교수의 한글표기 : 김종득
지도교수의 영문표기 : Jong-Duk Kim
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 61-62
주제 Phase diagrams.
고분자 용액. --과학기술용어시소러스
상분리. --과학기술용어시소러스
Polymer solutions.
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