| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Phase equilibria and surface tension of castor oil-based polyols in mixed-solvent |
| 초록 |
Thermodynamic framework of phase equilibrium and surface tension of castor oil-based polyol (CP) solutions were performed. Cloud points of CP soultions were measured by thermo optical analysis (TOA) method. Phase diagrams of CP solutions were described based on modified double lattice (MDL) model to account for specific interactions by hydrogen bonding. MDL model corresponded well with experimental data. The binary and ternary phase diagrams of CPs represent UCST behaviors in methanol and Treybal Type 2 behaviors in mixed solvent (water + methnaol), respectively. Pendent drop method was used for determination of surface tension of CP solutions. The surface tension of CP solutions was calculated using MDL model incorporated with Guggenheim's theory using same interaction parameter from LLE. |
| 저자 |
문준호1, 양한얼2, 이찬희2, 최지수2, 배영찬2, 오정석1
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| 소속 |
1경상대, 2한양대 |
| 키워드 |
Castor oil-based polyol; Molecular thermodyanamics; Modified double lattice model; Liquid-liquid equilibrium; Surface tension
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| E-Mail |
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