Thermodynamic description of geometrical confinement. Application to the glassy state and the glass transition of amorphous polymers
文献类型：期刊论文
| 作者 | Zheng, YM; Shi, YQ; Chen, GW |
| 刊名 | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
 |
| 出版日期 | 2003-03-01 |
| 卷号 | 319页码:80-98 |
| 关键词 | Geometrical Confinement Amorphous Polymer Thermodynamics Glassy State Kauzmann Temperature |
| ISSN号 | 0378-4371 |
| 英文摘要 | Based on the analysis of the geometrical confinements and the interactions between neighbor segments in polymeric systems, besides the quasi-lattice model used in Gibbs-DiMarzio entropy theory, an alternative theoretical method was developed here to investigate the thermodynamic aspect of the glassy state and the glass transition of amorphous polymers. A glass forming process through solvent evaporation from amorphous polymer-good solvent system was investigated, and the functional relationship between the glass transition temperature (T-q) and Kauzmann temperature (T-K) at which configurational entropy equals zero was derived. The ratio T-theta/T-K = e(1/4) was also deduced as a good approximation for a large amount of glassy polymers. The ratio is consistent with the empirical result T-g/T-K = 1.30 +/- 8.4%, which was proposed by Adam and Gibbs. The theoretical method presented here was also applied to investigate the compositional variation of glass transition temperatures; equations, which are consistent with experiments, were also derived. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000181280700007 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80381]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Chen, GW |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, YM,Shi, YQ,Chen, GW. Thermodynamic description of geometrical confinement. Application to the glassy state and the glass transition of amorphous polymers[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2003,319:80-98. |
| APA | Zheng, YM,Shi, YQ,&Chen, GW.(2003).Thermodynamic description of geometrical confinement. Application to the glassy state and the glass transition of amorphous polymers.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,319,80-98. |
| MLA | Zheng, YM,et al."Thermodynamic description of geometrical confinement. Application to the glassy state and the glass transition of amorphous polymers".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 319(2003):80-98. |
入库方式： OAI收割
来源：化学研究所
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