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Linear nucleation of polymers

Bassett, D. C. (2006) Linear nucleation of polymers. Polymer, 47 (15). pp. 5221-5227. ISSN 0032-3861

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Abstract/Summary

The use of high-melting fibres as linear nuclei for quiescent polymeric melts is instrumental in providing the superior mechanical properties of polymeric self-composites. It also has inherent advantages in the elucidation of fundamental aspects of polymeric crystallization and self-organization, not least in allowing systematic microscopic studies of polymeric crystallization from nucleation through to the growth interface. This has demonstrated explicitly that lamellae develop in two distinct ways, for slower and faster growth, depending on whether fold packing has or has not time to order before the next molecular layer is added with only the former leading to banded growth in linear polyethylene. Other gains in understanding concern cellulation and morphological instability, internuclear interference, isothermal lamellar thickening and banded growth being a consequence of the partial relief of initial surface stress. (c) 2006 Elsevier Ltd. All rights reserved.

Item Type:Article
Divisions:Faculty of Science > School of Mathematical, Physical and Computational Sciences
ID Code:5591
Uncontrolled Keywords:polyethylene linear nucleation oriented crystallization HIGH-MODULUS POLYETHYLENE ULTRA-HIGH-STRENGTH MORPHOLOGICAL INSTABILITY CRYSTALLIZATION GROWTH MELT CRYSTALS FIBERS POLYPROPYLENE CELLULATION

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