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The structure and rheology of molten ultra-high-molecular-mass polyethylene

Authors Gao, Ping View this author's profile
Mackley, Malcolm R.
Issue Date 1994
Source Polymer , v. 35, (24), 1994, p. 5210-5216
Summary We report optical scattering and birefringence observations on molten ultra-high-molecular-mass polyethylene (UHMMPE) and correlate these observations with a structure in the melt relating to the original reactor powder. In the quiescent state, pressure annealing can cause the observed light scattering to disappear; however, subsequent flow of the material causes the scattering to develop again. A simple microrheological model is proposed to explain some of the structure, pressure annealing and flow effects that have been observed.
ISSN 0032-3861
Language English
Format Article
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