Recrystallization rates and processes in laser-amorphized poly(ethylene terephthalate)

Recrystallization rates and processes in laser-amorphized poly(ethylene terephthalate)

The recrystallization of laser-amorphized poly(ethylene terephthalate)(PET) films has been followed in real time using infrared spectroscopy. The laser amorphization process produces a unique set of conditions which makes possible a simplified interpretation of the data obtained during recrystalliza...

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Veröffentlicht in:Macromolecules 1993-11, Vol.26 (6), p.1254-1259
Hauptverfasser: Richards, Philip D, Weitz, Eric, Ouderkirk, A. J, Dunn, D. S
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Sprache:eng
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Applied sciences
Crystallization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
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container_end_page 1259
container_issue 6
container_start_page 1254
container_title Macromolecules
container_volume 26
creator Richards, Philip D
Weitz, Eric
Ouderkirk, A. J
Dunn, D. S
description The recrystallization of laser-amorphized poly(ethylene terephthalate)(PET) films has been followed in real time using infrared spectroscopy. The laser amorphization process produces a unique set of conditions which makes possible a simplified interpretation of the data obtained during recrystallization of thin films. The observed data for the time dependence of the growth of recrystallized PET fits well to a kinetic model which includes both primary and secondary crystallization processes. Values obtained for the rate of the primary process agree well with literature values for spherulitic growth in PET, reaching a maximum rate of 94 nm/s at 170 deg C. The nature of the primary and secondary processes is discussed.
doi_str_mv 10.1021/ma00058a009
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subjects Applied sciences
Crystallization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
title Recrystallization rates and processes in laser-amorphized poly(ethylene terephthalate)
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