Infrared microspectroscopic mapping of the homogeneity of extruded blends: application to starch/polyester blends
Moghaddam, Lalehvash, Rintoul, Llew, Halley, Peter J., & Fredericks, Peter M. (2006) Infrared microspectroscopic mapping of the homogeneity of extruded blends: application to starch/polyester blends. Polymer Testing, 25(1), pp. 16-21.
Blends of starch and a biodegradable polyester, produced by an extrusion process which included a cross-linker/compatibilizer (maleic anhydride) and an initiator (dicumyl peroxide), were studied by infrared (IR) microspectroscopy using an attenuated total reflectance (ATR) objective. Extruded material, which had a diameter of about 3 mm, was sectioned and embedded in epoxy resin prior to IR analysis. Spectra were collected in a grid pattern across the sectioned face of the sample. Measurement of various band parameters from the spectra allowed IR maps to be constructed containing semi-quantitative information about the distribution of blend components. These maps showed the quality of the blend on a microscopic scale and showed how it varied with different concentrations of compatibilizer and initiator.
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|Item Type:||Journal Article|
|Keywords:||infrared spectroscopy, imaging, extrusion, polymer|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)|
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MACROMOLECULAR AND MATERIALS CHEMISTRY (030300) > Chemical Characterisation of Materials (030301)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2006 Elsevier|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||06 Dec 2005|
|Last Modified:||25 Feb 2013 13:52|
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