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Rough-surface crystallization: Some applications to poly(ethylene oxide) by D. M. Sadler is a Materials Science article available to read on EtoBox.

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## Abstract A model incorporating a rough (disordered) crystal growth surface is capable of treating many of the observations and measurements on the crystal growth of short chains of poly(ethylene oxide) from the melt. A simple preliminary treatment if presented which aims primarily to analyze the growth rate data within one growth “branch,” i.e., for a regime in which crystal thickness is approximately constant. Under these conditions the growth rate is approximately linear with crystallization temperature, as expected for rough growth surfaces, but not for smooth (faceted) ones. Simulation results are included which are in agreement with a simple equation and with experiment. The analysis enables the growth rates for different branches to be compared in a systematic way. A very steep decrease in growth rate with increasing crystal thickness is clearly illustrated, together with some influence of molecular weight. The general trend for chain folding can be seen as a consequence of this steep decrease. Parallel work on systems in which crystal thicknesses vary continuously with crystallization temperature led to the realization that “rounding off” will occur at the crystal perimet

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Author

D. M. Sadler

Publisher

Wiley (John Wiley & Sons); Interscience Publishers; Wiley (ISSN 0098-1273)

Published

1985

Language

EN

Field

Materials Science (Physical Sciences)