화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2007년 가을 (10/11 ~ 10/12, 일산킨텍스)
권호 32권 2호
발표분야 고분자 가공/복합재료
제목 Preparation of PBT/Clay Nanocomposites using Supercritical Process.
초록 Recently, polymer/clay nanocomposites have received considerable attention from both fundamental research and application point of view. This polymer/clay nanocomposite system could be followed by the in situ preparation of poly (butylene terephthalate) using a supercritical process. The ring-opening polymerization of butylene terephthalate cyclic oligomers was initiated by cyclic stannoxane 1 was carried out in supercritical chlorodifluoromethane(HCFC-22) at various pressure and temperature range. Chlorodifluoromethane was used as a solvent which has critical point (Tc=96.2℃, Pc=49.7bar). The nanocomposites are characterized by X-ray diffraction, transmisson electron microscopy, capillary viscometer, differential scanning calorimetry.
저자 홍영기1, 윤호규2, 이윤우3, 이상수1, 박민1, 김준경1, 임순호1
소속 1한국과학기술(연), 2고려대, 3서울대
키워드 supercritical; clay; nanocomposite; PBT
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