کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9635761 | 1427486 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase behavior of crosslinked polyisoprene rubber and supercritical carbon dioxide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The phase behavior of crosslinked polyisoprene rubber (PIR) in CO2 at temperatures ranging from 293 to 453Â K and pressures ranging from 0.1 to 20Â MPa were investigated. Visual swelling measurements based on the sample dimensions were performed using a high-pressure view cell. The change of the degree of swelling with time provided a diffusion coefficient of CO2 in crosslinked PIR. The solubility measurements were carried out by using a magnetic suspension balance (MSB) method. The weight change of the sample in CO2 under elevated pressure and temperature was converted to solubility taking the buoyancy effect and the degree of swelling into account; the degree of swelling was derived both from the visual swelling measurement and from theoretical estimation on the basis of the Sanchez-Lacombe equation of state. The solubility from the two methods was in good agreement with each other in the range from 8 to 13Â MPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 35, Issue 3, October 2005, Pages 175-181
Journal: The Journal of Supercritical Fluids - Volume 35, Issue 3, October 2005, Pages 175-181
نویسندگان
Masaaki Kojima, Masatoshi Tosaka, Eita Funami, Kouei Nitta, Masahiro Ohshima, Shinzo Kohjiya,