Study of diffusion and sorption of bis-(2-chloroethyl)sulfide (SM) and bis-(2-chloroethyl)ether (OM) through polypropylene (PP) and biaxial-oriented polypropylene (bopp) films by the FTIR–ATR spectroscopic method
✍ Scribed by Rajendra P. Semwal; Susanta Banerje; Lakhi R. Chauhan; A. Bhattacharya; N. B. S. N. Rao
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 446 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
The diffusion of sulfur mustard (SM) and oxygen mustard (OM) in polypropylene (PP) and biaxial-oriented PP (BOPP) was measured using Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy, which allows one to study the diffusion of liquid through thin polymer films in situ. The temperature-dependent diffusion coefficients of OM and SM for PP and BOPP are also reported; these are in good agreement with the values obtained by the weight gain method. The activation energy of difision is determined by both methods. The polymer-penetrant interaction parameter ( K ) and transport number ( n ) are calculated for the system PP/OM and BOPP/OM by weight gain method. The "n" values indicate a Fickian mode of diffusion.