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Title: Deformation Behaviour During Cold Drawing of Nanocomposites Based on Single Wall Carbon Nanotubes and Poly(ether ester) Copolymers

Abstract

Relationships between the macroscopic deformation behaviour and microstructure of a pure (PBT-b-PTMO) block copolymer and a polymer nanocomposite (PBT-b-PTMO + 0.2 wt% SWCNT) were investigated by simultaneous small- and wide-angle X-ray scattering (SAXS and WAXS) during tensile deformation using synchrotron radiation. The Young's modulus was found to be 15% higher for the nanocomposite than for the pure block copolymer as well as the yield strength, while the elongation-to-break was less than a half. This different behaviour can be explained by taking into account the different structural features revealed by SAXS and WAXS and thus considering that SWCNT act as anchors in the nanocomposite, sharing the applied stress with the PBT crystals and partially preventing the flexible, non-crystallisable PTMO chains to elongate.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
930473
Report Number(s):
BNL-81225-2008-JA
Journal ID: ISSN 0032-3861; POLMAG; TRN: US0901397
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Polymer; Journal Volume: 48; Journal Issue: 11
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 43 PARTICLE ACCELERATORS; CARBON; CHAINS; COPOLYMERS; DEFORMATION; MICROSTRUCTURE; NANOTUBES; POLYMERS; SCATTERING; SYNCHROTRON RADIATION; YIELD STRENGTH; national synchrotron light source

Citation Formats

Hernandez,J., Garcia-Gutierrez, M., Nogales, A., Rueda, D., Sanz, A., Sics, I., Hsiao, B., Roslaniec, Z., Broza, G., and Ezquerra, T. Deformation Behaviour During Cold Drawing of Nanocomposites Based on Single Wall Carbon Nanotubes and Poly(ether ester) Copolymers. United States: N. p., 2007. Web. doi:10.1016/j.polymer.2007.03.070.
Hernandez,J., Garcia-Gutierrez, M., Nogales, A., Rueda, D., Sanz, A., Sics, I., Hsiao, B., Roslaniec, Z., Broza, G., & Ezquerra, T. Deformation Behaviour During Cold Drawing of Nanocomposites Based on Single Wall Carbon Nanotubes and Poly(ether ester) Copolymers. United States. doi:10.1016/j.polymer.2007.03.070.
Hernandez,J., Garcia-Gutierrez, M., Nogales, A., Rueda, D., Sanz, A., Sics, I., Hsiao, B., Roslaniec, Z., Broza, G., and Ezquerra, T. Mon . "Deformation Behaviour During Cold Drawing of Nanocomposites Based on Single Wall Carbon Nanotubes and Poly(ether ester) Copolymers". United States. doi:10.1016/j.polymer.2007.03.070.
@article{osti_930473,
title = {Deformation Behaviour During Cold Drawing of Nanocomposites Based on Single Wall Carbon Nanotubes and Poly(ether ester) Copolymers},
author = {Hernandez,J. and Garcia-Gutierrez, M. and Nogales, A. and Rueda, D. and Sanz, A. and Sics, I. and Hsiao, B. and Roslaniec, Z. and Broza, G. and Ezquerra, T.},
abstractNote = {Relationships between the macroscopic deformation behaviour and microstructure of a pure (PBT-b-PTMO) block copolymer and a polymer nanocomposite (PBT-b-PTMO + 0.2 wt% SWCNT) were investigated by simultaneous small- and wide-angle X-ray scattering (SAXS and WAXS) during tensile deformation using synchrotron radiation. The Young's modulus was found to be 15% higher for the nanocomposite than for the pure block copolymer as well as the yield strength, while the elongation-to-break was less than a half. This different behaviour can be explained by taking into account the different structural features revealed by SAXS and WAXS and thus considering that SWCNT act as anchors in the nanocomposite, sharing the applied stress with the PBT crystals and partially preventing the flexible, non-crystallisable PTMO chains to elongate.},
doi = {10.1016/j.polymer.2007.03.070},
journal = {Polymer},
number = 11,
volume = 48,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}