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Investigations into the free-volume changes within starch/plasticizer/nanoclay systems using Positron Annihilation Lifetime Spectroscopy

Liu, Huihua; Chaudhary, Deeptangshu; Campbell, Colin; Roberts, Jason; Buckman, Stephen; Sullivan, James


The free-volume of a matrix is a fundamental parameter that relates to its molecular and bulk characteristics, such as crystalline change and glass transition behavior. In starch-based bionanocomposite, we investigated the effect of the addition of montmorillonite nanoclay (MMT) and food plasticizers (glycerol and sorbitol) on changes of molecular pore size (including pore volume and pore distribution) using the Positron Annihilation Lifetime Spectroscopy (PALS) method. The results demonstrated...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Materials Chemistry and Physics
DOI: 10.1016/j.matchemphys.2014.07.054


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