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Title: Crystallisation from anisotropic polyethlene melts
Author: Thornley, Sarah
ISNI:       0000 0001 3532 8469
Awarding Body: The University of Reading
Current Institution: University of Reading
Date of Award: 2006
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Research was directed towards further understanding the process of templating, whereby the crystallisation of the bulk material (branched polyethylene) Is altered from unoriented to oriented after melt shear by mapping it on to a pre-existing minority structure (linear polyethylene). Due to the rotational component in shear flow It Is considered a weaker flow, as compared to elongatlonal flow, for providing chain extension. Removal of the rotational component might lead to higher levels of anisotropy being detected in the melt, thus aiding in the understanding of templating. This was achieved by utilising a custom-built channel die to impart plane-strain compression in the melt.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available