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Composites of poly(ε-caprolactone) and Mo6S3I6 nanowires
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Chin, Seow Jecg, Hornsby, Peter, Vengust, Damjan, Mihailović, Dragan, Mitra, J., Dawson, Paul and McNally, Tony (2012) Composites of poly(ε-caprolactone) and Mo6S3I6 nanowires. Polymers for Advanced Technologies, Vol.23 (No.2). pp. 149-160. doi:10.1002/pat.1838 ISSN 1042-7147.
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Official URL: http://dx.doi.org/10.1002/pat.1838
Abstract
Composites of poly(ε-caprolactone) (PCL) and molybdenum sulfur iodine (MoSI) nanowires were prepared using twin-screw extrusion. Extensive microscopic examination of the composites revealed the nanowires were well dispersed in the PCL matrix, although bundles of Mo6S3I6 ropes were evident at higher loadings. Secondary electron imaging (SEI) showed the nanowires had formed an extensive network throughout the PCL matrix, resulting in increased electrical conductivity of PCL, by eight orders of magnitude, and an electrical percolation threshold of 6.5 × 10−3 vol%. Thermal analysis (DSC), WAXD, and hot stage polarized optical microscopy (HSPOM) experiments revealed Mo6S3I6 addition altered PCL crystallization kinetics, nucleation density, and crystalline content. A greater number of smaller spherulites were formed via heterogeneous nucleation. The onset of thermal decomposition (TGA) of PCL decreased by 70°C, a consequence of the thermal degradation of Mo6S3I6 to MoO3, which in turn accelerates the formation of volatile gases during the first stage of PCL decomposition.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
| Journal or Publication Title: | Polymers for Advanced Technologies | ||||
| Publisher: | John Wiley & Sons Ltd. | ||||
| ISSN: | 1042-7147 | ||||
| Official Date: | February 2012 | ||||
| Dates: |
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| Volume: | Vol.23 | ||||
| Number: | No.2 | ||||
| Page Range: | pp. 149-160 | ||||
| DOI: | 10.1002/pat.1838 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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