ICCAS OpenIR
Thermodynamic description of geometrical confinement. Application to the glassy state and the glass transition of amorphous polymers
Zheng, YM; Shi, YQ; Chen, GW
2003-03-01
Source PublicationPHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
ISSN0378-4371
Volume319Pages:80-98
AbstractBased 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.
KeywordGeometrical Confinement Amorphous Polymer Thermodynamics Glassy State Kauzmann Temperature
Indexed BySCI
Language英语
WOS IDWOS:000181280700007
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/80382
Collection中国科学院化学研究所
Corresponding AuthorChen, GW
AffiliationChinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
Recommended Citation
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.
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