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Rheologica Acta

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01-01-2015 | Original Contribution

Flow-induced crystallization studied in the RheoDSC device: Quantifying the importance of edge effects

Authors: Peter C. Roozemond, Martin van Drongelen, Leander Verbelen, Peter Van Puyvelde, Gerrit W. M. Peters

Published in: Rheologica Acta | Issue 1/2015

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Abstract

Flow-induced crystallization is investigated through short-term shear flow experiments on poly(1-butene) in the RheoDSC device. We demonstrate that the DSC signal shows contributions from spherulitic morphology in the center of the sample and oriented structures at the edge of the sample, the latter being induced by edge effects at the free surface. It is shown that, although small in terms of volume, the crystallization at the edge has a dominating influence on the measured rheology. We show how these kinds of effects can be recognized in stand-alone rheometric studies of flow-induced crystallization.

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Title: Flow-induced crystallization studied in the RheoDSC device: Quantifying the importance of edge effects
Authors: Peter C. Roozemond
Martin van Drongelen
Leander Verbelen
Peter Van Puyvelde
Gerrit W. M. Peters
Publication date: 01-01-2015
Publisher: Springer Berlin Heidelberg
Published in: Rheologica Acta / Issue 1/2015
Print ISSN: 0035-4511
Electronic ISSN: 1435-1528
DOI: https://doi.org/10.1007/s00397-014-0820-0

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