COUTRY, S. and SPELLS, S. (2002). The effect of short chain branching on local chain organisation in isotopically labelled blends of polyethylene. Polymer, 43 (18), 4957-4965.
Full text not available from this repository.Abstract
The complementary techniques of small angle neutron scattering (SANS) and infra-red spectroscopy have been used to determine features of molecular trajectory for isotopic blends incorporating linear polyethylene and copolymers containing butyl or hexyl branches. SANS data show both a more compact conformation for a copolymer guest molecule than for a linear guest and also a smaller molecular expansion with increasing molecular weight when both guest and host are copolymers. These blends also show the smallest proportion of {110} isolated guest stems, while wholly linear blends show the largest proportion, on the evidence of the infra-red CD2 bending band profiles. Estimates are made of the sizes of ‘groups’ of adjacent stems, and these also show a corresponding dependence on the sample type, indicating a higher proportion of adjacent re-entry for copolymer blends than for linear blends.
Item Type: | Article |
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Additional Information: | Copyright © 2002 Elsevier Science Ltd |
Research Institute, Centre or Group - Does NOT include content added after October 2018: | Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Polymers, Composites and Spectroscopy Group |
Identification Number: | https://doi.org/10.1016/S0032-3861(02)00334-8 |
Page Range: | 4957-4965 |
Depositing User: | Ann Betterton |
Date Deposited: | 16 Aug 2007 |
Last Modified: | 19 Mar 2021 01:00 |
URI: | https://shura.shu.ac.uk/id/eprint/928 |
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