Permeation of alkylbenzene isomers of molecular weight 120 through nitrile gloves

✍ Scribed by Chin-Hsiang Tsai; Shane S. Que Hee

• Book ID: 102654957
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 893 KB
• Volume: 60
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19960509)60:6<833::aid-app6>3.0.co;2-k

✦ Synopsis

Factors determining the permeation of eight alkylbenzene isomers of molecular weight 120.19 (three ethyl toluenes, three trimethylbenzenes, and two propyl benzenes) were investigated for a lined nitrile industrial type glove using an ASTM-type cell, liquid collection, and gas chromatography/mass spectrometry. The initial permeation rate Pi correlated inversely with the logarithm of the lag time tl. The logarithm of the steady-state permeation rate P, correlated inversely with the logarithm of the breakthrough time tb. PJPi for a given compound correlated directly with P, and with tl/tb. Pi depended directly on the logarithm of the entropy of fusion divided by the square of the refractive index and divided by the solubility parameter. The t b was inversely correlated to the logarithm of the water solubility. The logarithm of tl was most directly correlated to the entropy of vaporization. High P, for 1,2,4-trimethylbenzene, m-ethyltoluene, and p-ethyl toluene was linked to a common structural similarity to 1,2,4-trimethylbenzene relative to the unhindered geometry of the methyl group in the ethyl side chain. The existence of optimum radii of gyration for enhanced P, and for long t b suggested that the protective properties of nitrile followed discontinuous relationships rather than continuous ones and so are not explainable by correlative relationships of continuous functions.