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Small Angle X-Ray Scattering of Crystalline PolymerBlends

Published online by Cambridge University Press:  15 February 2011

Peter P. Huo ,
Peggy Cebe  and
Malcolm Capel
Peter P. Huo
Affiliation:
Department of Materials Science and Engineering, Room 13–5082, Massachusetts Institute of Technology, Cambridge, MA 02139
Peggy Cebe
Affiliation:
Department of Materials Science and Engineering, Room 13–5082, Massachusetts Institute of Technology, Cambridge, MA 02139
Malcolm Capel
Affiliation:
Biology Department, Brookhaven National Laboratory, Upton, NY 11973
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Abstract

Binary blends of a semicrystalline polymer, poly (butylene terephthalate),PBT, with an amorphous polymer, polyarylate, PAr, were studied for a widerange of compositions. SMall angle x-ray scattering, thermal and mechanicalanalyses were conducted to determine the location of the uncrystallizablePAr relative to the crystal lamellae of PBT, for blends crystallized byheating from the quenched state. Comparison of experimental and calculatedlong periods indicates that interlamellar PAr placement becomes lessprobable as the PAr composition increases. When PBT crystallizes in theseblends, Most PAr is rejected from the regions near the crystal surfaces whenPAr fraction exceeds about 0.40.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 321: Symposium E – Crystallization and Related Phenomena in Amorphous Materials—Ceramics, Metals, Polymers, and Semiconductors , 1993 , 555
Copyright
Copyright © Materials Research Society 1994

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