A Nuclear Magnetic Resonance Study of Poly(e-caprolactone) and Its Blends with Poly (vinyl chloride)

[en] NMR T1 T2, and T10 data are reported for poly(c-caprolactone) (PCL) and its blends with poly (vinyl chloride) (PVC). The relaxation behavior of PCL is similar to that of poly(ethylene oxide) and to that of polyethylene for temperatures below the melting point of PCL. Blends with PVC exhibit small-scale heterogeneity even for component concentrations at which the PCL is recognized as an amorphous material. It is proposed that PCL forms an intimate blend with part of the PVC component through hydrogen bonding and, once mobile, acts as a plasticizer for the PVC. The remaining, excess PVC in the 30/70 and 20/80 PCL/PVC blends studied is unplasticized and remains relatively immobile until temperatures close to the melting point are reached. In the light of these findings, the assignment of a single glass transition temperature to the blends rich in PVC must be reviewed. © 1984, American Chemical Society. All rights reserved.

Disciplines :

Chemistry

Author, co-author :

Albert, Brigitte; Université de Liège - ULiège

Jérôme, Robert ; Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)

Teyssié, Philippe ; Université de Liège - ULiège > Relations académiques et scientifiques (Sciences)

Smyth, Gerard; Department of Pure and Applied Physics, Trinity College, University of Dublin, Sart-Tilman, Dublin, 2, Ireland

McBrierty, Vincent J.; Department of Pure and Applied Physics, Trinity College, University of Dublin, Sart-Tilman, Dublin, 2, Ireland

Language :

English

Title :

A Nuclear Magnetic Resonance Study of Poly(e-caprolactone) and Its Blends with Poly (vinyl chloride)

Publication date :

1984

Journal title :

Macromolecules

ISSN :

0024-9297

eISSN :

1520-5835

Publisher :

American Chemical Society, United States - District of Columbia

Volume :

Issue :

Pages :

2552-2556

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 05 January 2020

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