| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
대학원생 구두발표(발표10분) |
| 제목 |
Molecular thermodynamic analysis for an abnormal feature of Poly(methyl methacrlyate) in water/alcohol mixed solvent |
| 초록 |
We investigated the phase behavior of Poly(methyl methacrylate) (PMMA) in water/alcohol cosolvent system and compared it with PMMA particle gel’s re-collapsing behavior. Nanometer-sized PMMA gel particles were prepared by precipitation polymerization and their swelling behavior were determined using photon correlation spectroscopy (PCS). With increasing water fraction in alcohol/water mixed solvent, PMMA gel particles exhibit re-collapsing behavior within cosolvency range of PMMA/water/alcohol ternary system. The modified double lattice model (MDL) and the Flory-Rhener theory were employed to calculate the Helmholtz energy of mixing and elastic contributions, respectively. The advantage of this work is to be suitable for qualitatively predicting the re-collapsing swelling behavior of the given system. |
| 저자 |
이상민, 배영찬
|
| 소속 |
한양대 |
| 키워드 |
Poly(methyl methacrylate); Cosolvency; re-collapsing
|
| E-Mail |
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