화학공학소재연구정보센터
학회 한국화학공학회
학술대회 1998년 가을 (10/23 ~ 10/24, 조선대학교)
권호 4권 2호, p.2453
발표분야 열역학
제목 Quasi-Chemical Thermodynamic Frame-Work에 기준한 이성분계 고분자 용액의 용매 활동도
초록 We propose a fundamental thermodynamic frame-work to describe the solvent activity for polymer solution. The significant free-volume differences between solvents and polymers that occur in most polymer-solvent solutions generally lead to the underestimation of solvent activities. To take into account the free-volume differences, we employ simple free-volume expression proposed by Elbro et al. Binary parameters are obtained from LLE data. Our proposed model has no adjustable parameters. The predicted results are compared with the experimental data for some binary polymer solutions at various temperatures.
저자 장봉호, 배영찬
소속 한양대
키워드 Fundamental thermodynamic frame-work; Solvent activity; Free-volume
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