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Concerning the negative thermal expansion for extended chain polyethylene

✍ Scribed by R. S. Porter; N. E. Weeks; N. J. Capiati; R. J. Krzewki

Publisher
Springer Netherlands
Year
1975
Tongue
English
Weight
514 KB
Volume
8
Category
Article
ISSN
0022-5215

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Calculation of the temperature dependenc
Calculation of the temperature dependence of the negative thermal expansion of polyethylene chains by means of the self-consistent harmonic approximation
✍ Rainer A. Stobbe; Peter C. HΓ€gele πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 389 KB πŸ‘ 1 views

A parameter-free model based on molecular mechanics with zero Kelvin potentials is developed to describe quantitatively the shortening of the unit cell of polyethylene crystals in chain direction with increasing temperature. Based on the well-known conception that an increase of the amplitudes of th