Ultrasonic characterization of the crystallization behavior of poly(ethylene terephthalate)

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DOIResolve DOI: http://doi.org/10.1002/app.30668
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Journal titleJournal of Applied Polymer Science
Pages27312739; # of pages: 9
Subjectultrasonic signal; DSC measurement; crystallization; poly(ethylene terephthalate) (PET); pressure-volume-temperature (PVT); polymer chain movement; crystallization behavior
AbstractBased on previous observations that the ultrasonic signals are sensitive to the crystallization of polymers (Tatibouet, J., Piché, L. Polymer 1991, 32, 3147), we have expanded our efforts to study the detail relationship between the ultrasonic signals and crystallization process in the present work. The nonisothermal and isothermal crystallization of virgin poly(ethylene terephthalate) (PET) and PET samples after degradation were studied by using a specially designed pressure-volume-temperature (PVT) device, with which an ultrasonic detector was combined. The results showed that the evolution of the ultrasonic signals not only can be used to probe the crystallization process, but also can qualitatively characterize crystallization rate, crystallinity, crystallite size and amorphous. DSC measurement was used to verify such results. Ultrasonic signals could be as a complementary tool to polymer chain movement and well be applied to characterize the crystallization behaviour. Furthermore, the ultrasonic measurement has the potential use to characterize crystallization of products in-line during processing (i.e., injection molding, microcoulding).
Publication date
PublisherWiley Periodicals, Inc.
Copyright noticeMaterial in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the informationsource and, in specific instances, to prohibit reproduction of materials without written permission.
AffiliationNRC Industrial Materials Institute (IMI-IMI); National Research Council Canada
Access conditionavailable
Peer reviewedYes
NRC number51084
NPARC number10831264
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Record identifier6c07d420-31d9-4df6-9a1c-abe1adb25c84
Record created2009-10-03
Record modified2016-05-09
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