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Journal of Polymer Research
Published in: Journal of Polymer Research 5/2012

01-05-2012 | Original Paper

Structural investigation of Poly(ethylene terephthalate)/Poly(trimethylene terephthalate) transesterificated blends

Authors: Maurizio Canetti, Maila Castellano

Published in: Journal of Polymer Research | Issue 5/2012

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Abstract

Wide-Angle X-ray Diffraction (WAXD) and Small-Angle X-ray Scattering analyses were carried out to evaluate the evolution of the crystalline and supermolecular structure of poly(ethylene terephthalate) (PET) blended with poly(trimethylene terephthalate) (PTT). The conditions adopted in preparing the PET/PTT 50/50 blend induce transesterification between the polyesters; these reactions produce a new molecular characteristics based on PET/PTT copolymer that exhibits its own WAXD profile. The PET/PTT 50/50 copolymers prepared by melt mixing of the homopolymers for increasing times evidence spherulitic morphology and an evolution of the crystalline structure in terms of crystallinity and crystal dimensions. The periodicity of the transesterificated samples is intermediate between the long periods observed for pure PET and pure PTT. For the PET/PTT 50/50 copolymers the value of periodicity and lamellar thickness increase with the increasing of the processing time.
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Metadata
Title
Structural investigation of Poly(ethylene terephthalate)/Poly(trimethylene terephthalate) transesterificated blends
Authors
Maurizio Canetti
Maila Castellano
Publication date
01-05-2012
Publisher
Springer Netherlands
Published in
Journal of Polymer Research / Issue 5/2012
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-012-9874-9

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