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DIRECT MEASUREMENT OF THE TEMPERATURE-DEPENDENCE OF THE UNPERTURBED DIMENSIONS OF A POLYMER
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UNSPECIFIED. (1991) DIRECT MEASUREMENT OF THE TEMPERATURE-DEPENDENCE OF THE UNPERTURBED DIMENSIONS OF A POLYMER. EUROPHYSICS LETTERS, 15 (7). pp. 715-719. ISSN 0295-5075
Full text not available from this repository.Abstract
We demonstrate for the first time that small-angle neutron scattering can be used as a direct and accurate method to determine the temperature dependence of the unperturbed dimensions of a polymer. The sensitivity of the technique arises from the remarkable accuracy with which the random walk model can be used to describe the single-chain structure factor, and enables us to detect changes in the polymer radius of gyration of less than 0.5%. We present results for molten polyethylene and verify the accepted value of the temperature coefficient of thermal expansion.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | EUROPHYSICS LETTERS | ||||
| Publisher: | EDITIONS PHYSIQUE | ||||
| ISSN: | 0295-5075 | ||||
| Official Date: | 1 August 1991 | ||||
| Dates: |
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| Volume: | 15 | ||||
| Number: | 7 | ||||
| Number of Pages: | 5 | ||||
| Page Range: | pp. 715-719 | ||||
| Publication Status: | Published | ||||
| URI: | http://wrap.warwick.ac.uk/id/eprint/22580 |
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