CONFORMATIONAL PROPERTIES OF STRETCHED POLYETHYLENE CHAIN*

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CONFORMATIONAL PROPERTIES OF STRETCHED POLYETHYLENE CHAIN*

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- CONFORMATIONAL PROPERTIES OF STRETCHED POLYETHYLENE CHAIN*
- Vol. 18, Issue 6, Pages: 521-525(2000)
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- Published：20 December 2000
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CONFORMATIONAL PROPERTIES OF STRETCHED POLYETHYLENE CHAIN*[J]. 2000, 18(6): 521-525.
DOI：

CONFORMATIONAL PROPERTIES OF STRETCHED POLYETHYLENE CHAIN*[J]. 2000, 18(6): 521-525. DOI：

摘要

When polyethylene chains are stretched

the chains are regarded as being confined in an infinite cylinder withdecreasing diameter. The conformational properties of polyethylene chains confined in an infinite cylinder are investigatedby using rotational isomeric state model. Using the average conformational energy and entropy and the average length

wecan determine the elastic force f or the fraction of the energy term to the total forcefe/f

where fe=?/?and f=?/?.Comparisons with experimental data are also made.The results of these microscopic calculations are discussed in therms of the macroscopic phenomena of rubber elasticity.

Abstract

When polyethylene chains are stretched

wecan determine the elastic force f or the fraction of the energy term to the total forcefe/f

where fe=?/?and f=?/?.Comparisons with experimental data are also made.The results of these microscopic calculations are discussed in therms of the macroscopic phenomena of rubber elasticity.

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