Chemical Imaging of the Spatial Distribution and Interactions of Tannin Dispersal in Bioplastic Systems |
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| Journal | Advanced Materials Research (Volumes 29 - 30) |
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| Volume | Advanced Materials and Processing IV |
| Edited by | Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek |
| Pages | 173-176 |
| DOI | 10.4028/www.scientific.net/AMR.29-30.173 |
| Citation | Marc Gaugler et al., 2007, Advanced Materials Research, 29-30, 173 |
| Online since | November, 2007 |
| Authors | Marc Gaugler, Warren Grigsby, D. Harper, T. Rials |
| Keywords | Biodegradable Plastic, Condensed Tannin, Infrared Imaging, Polyphenolics |
| Abstract | IR chemical imaging has been used to characterise the dispersion of condensed tannin additives in a biodegradable plastic, poly(butylene succinate). By mapping key FTIR absorptions, acetylated tannin was found to remain in discrete aggregates, though the outer of these particles contained a mixed phase with PBS. In particles >100 μm, PBS does not appear to ingress the tannin core, only wetting the outer region. Analysis of a second tannin derivative indicated that there was a more uniform dispersion of the additive in the PBS matrix. |
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