Toluene diffusion in butyl rubber

Autor:	James A. Moseman, Nak-Ho Sung, Nathaniel S. Schneider
Rok vydání:	1994
Předmět:	Self-diffusion Polymers and Plastics Diffusion Analytical chemistry Concentration effect Sorption Butyl rubber Condensed Matter Physics Fick's laws of diffusion Toluene chemistry.chemical_compound chemistry Volume fraction Materials Chemistry Organic chemistry Physical and Theoretical Chemistry
Zdroj:	Journal of Polymer Science Part B: Polymer Physics. 32:491-499
ISSN:	1099-0488 0887-6266
DOI:	10.1002/polb.1994.090320310
Popis:	The sorption isotherm and the polymer mass-fixed diffusion coefficients, D, for toluene in butyl rubber have been measured by the incremental sorption method to concentrations of 130%, corresponding to a solvent volume fraction of 0.578. The increase in D with concentration is strongly exponential to a concentration of 30% and then begins to level out. Since the nature of the dimensional change occurring in vapor sorption was not known, the values of D were converted to solvent self-diffusion coefficients, D 1 , assuming both swelling in the thickness direction (1D) and isotropically (3D)
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8abb789a26c814150126c5c37acf688f https://doi.org/10.1002/polb.1994.090320310 Zobrazit plný text záznamu Plný text