| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 봄 (04/23 ~ 04/24, 광주 김대중컨벤션센터) |
| 권호 |
15권 1호, p.23 |
| 발표분야 |
고분자 |
| 제목 |
Prediction of the Glass Transition Temperature of Semicrystalline Polymer/Salt Complexes |
| 초록 |
An explicit expression based on the configurational entropy model, the FloryHuggins theory and Guggenheim’s form of Debye-Hckel theory has been derived for predicting the glass transition temperatures (Tg) of binary semicrystalline polymer/salt complexes The proposed configurational entropy (Sc) of polymer/salt systems consists of the disorientation entropy of polymer 1 (Sdiso-1), the dissociation entropy of salt (Sdiss-2), the mixing entropy (Smix-12) and the specific interaction entropy (Sspe-12). In particular, the effect of crystalline segments was accounted for by the current model. The prediction of the proposed Tg model is in good agreement with experimental data. Our results demonstrate that the small change of the Tg in semicrystalline polymer/salt complexes compared to amorphous systems is mostly attributable to the reduced configurational entropy due to the presence of crystalline segments. |
| 저자 |
박정태1, 서진아2, 증효뢰1, 고주환2, 김종학1
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| 소속 |
1연세대 화공생명공학, 2수소연료전지 특성화 사업단 |
| 키워드 |
glass transition; polymer/salt complex; interaction parameter; configurational entropy; thermodynamics
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| E-Mail |
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| 원문파일 |
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