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Bulgarian Journal of Physics
Print: 1310-0157 Online: 1314-2666
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RECOGNIZED BY THE EUROPEAN PHYSICAL SOCIETY 
Bulg. J. Phys. vol.16 no.4 (1989), pp. 421-428
Structure and Crystallization Kinetics of Poly(ether ester)s Based on Poly(butylene terephthalate) and Poly(ethylene oxide)
A.A. Apostolov, S. Fakirov
Laboratory on Structure and Properties of Polymers, University of Sofia, 1126 Sofia, Bulgaria
go backLaboratory on Structure and Properties of Polymers, University of Sofia, 1126 Sofia, Bulgaria
Abstract. The crystal structure and kinetics of crys!allization from the melt of poly(ether ester)s (PEE) based on poly(butylene terephthalate) (PBT) and poly(ethylene) oxide (PEO) are studied. It is found that in PEE only the PBT segments are in the crystalline state, the latter having the same structure as the homopolymer PBT. Data on Avrami constants and half-times of crystallization from the melt are obtained by means of small angle X-ray scattering with synchrotron radiation.