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Microphase separation assisted reduction in the percolation threshold of MWCNT/block polymer composites
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Topcu, Gokhan, Reinoso-Arenas, David, McNally, Tony and Becer, C. Remzi (2023) Microphase separation assisted reduction in the percolation threshold of MWCNT/block polymer composites. Soft Matter, 19 (6). pp. 1109-1114. doi:10.1039/D2SM01277D ISSN 1744-683X.
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WRAP-Microphase-separation-assisted-reduction-in-the-percolation-threshold-of-MWCNT-block-polymer-composites-Topcu-2023.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution. Download (1318Kb) | Preview |
Official URL: http://dx.doi.org/10.1039/D2SM01277D
Abstract
Block copolymers continue to attract a great deal of interest since they allow the formation of microphase-separated domains, useful for nanopatterning/templating. Herein, we present the drastic effect of microphase separation of a diblock copolymer on the electrical properties of polymer nanocomposites. Microphase-separated poly(styrene-b-2-ethylhexyl acrylate) (P(St-b-EHA)) block copolymers having different block lengths were synthesized and utilized as templates for multi-walled carbon nanotubes (MWCNTs). The percolation threshold of the films decreased from 0.46 to 0.19 vol.% with decreasing styrene phase fraction. More importantly, we observed a non-linear and unique reduction in percolation threshold with transforming phase into lamellar structures.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Library of Congress Subject Headings (LCSH): | Block copolymers, Carbon nanotubes, Percolation, Diblock copolymers, Nanocomposites (Materials) | ||||||||
Journal or Publication Title: | Soft Matter | ||||||||
Publisher: | Royal Society of Chemistry | ||||||||
ISSN: | 1744-683X | ||||||||
Official Date: | 14 February 2023 | ||||||||
Dates: |
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Volume: | 19 | ||||||||
Number: | 6 | ||||||||
Page Range: | pp. 1109-1114 | ||||||||
DOI: | 10.1039/D2SM01277D | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 9 January 2023 | ||||||||
Date of first compliant Open Access: | 9 January 2023 | ||||||||
RIOXX Funder/Project Grant: |
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