ISSN:
1435-1536
Keywords:
Condis phase
;
high temperature transition of polyethylene
;
cluster-entropy hypothesis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract On the basis of atomistic calculations a rotator model of the high temperature Condis phase of polyethylene is proposed. Its cooperative statistical treatment (using CEH for the lateral packing of chains) explains the first order transition from the all-trans crystal as well as the transition dataT t ,ΔS t ,ΔV t . We found that the normal melting (i. e. at pressures below the triple point) is also governed by the onset of the Condis phase.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01419545
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