Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5206827 | Polymer Testing | 2012 | 12 Pages |
Abstract
An FTIR-ATR technique was developed to investigate the multiple-component diffusion properties of 2-octanone, hexyl acetate, octanal, limonene and linalool (equal volume mixture) in a linear low density polyethylene film. Diffusion coefficient (D) values determined for these compounds in the mixture were 7.02 Ã 10â10, 2.86 Ã 10â9, 1.09 Ã 10â9, 7.49 Ã 10â9 and 5.81 Ã 10â9 cm2/s, respectively. Compared with the diffusion of the individual permeants (1:4 permeant:ethanol, v/v), the D values of 2-octanone, hexyl acetate and limonene were lower in the mixture solution, while those of octanal and linalool were higher. Hansen solubility parameters (HSP) were used to elucidate the solubility properties of the permeants. Two-dimensional FTIR data analysis showed that diffusion of the test permeants in LLDPE occurred in the following sequence: limonene (first) â linalool â hexyl acetate â octanal â 2-octanone (last).
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Yucheng Fu, Loong-Tak Lim,