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Small Angle X-Ray Scattering of Crystalline Polymer Blends

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 wide range of compositions. SMall angle x-ray scattering, thermal and mechanical analyses were conducted to determine the location of the uncrystallizable PAr relative to the crystal lamellae of PBT, for blends crystallized by heating from the quenched state. Comparison of experimental and calculated long periods indicates that interlamellar PAr placement becomes less probable as the PAr composition increases. When PBT crystallizes in these blends, Most PAr is rejected from the regions near the crystal surfaces when PAr 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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