کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5188801 | 1381169 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Empirical determination of equation of state for zero internal pressure in rare gas solids and semi-crystalline polymers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An equation of state for zero internal pressure in rare gas solids and semi-crystalline polymers has been determined based on the empirical functions of thermal pressure coefficient γV with respect to volume at constant pressure. The experimental data of PVT over wide range of temperature and pressure published by Anderson and Swenson and Syassen and Holzapfel for rare gas solids and Olabisi and Simha and Zoller for semi-crystalline polymers are used to evaluate γV. The function of γV with respect to volume determined at constant pressure is given by γV=A{(VâV0)/V}É(V0/V)1+cexp{âc(VâV0)/V} where V0 is the volume at 0 K, A, É and c are constants. The function of internal pressure Pi = γVT â P with respect to temperature at constant pressure is determined by converting the function of γV(V) to a function of temperature γV(T). An empirical equation of state for zero internal pressure determined by pressure Pâ, volume Vâ and temperature Tâ at which Pi = 0 is expressed by PâVâ/RTâ=CââDâVâ for rare gas and semi-crystalline polymer where Câ and Dâ are constants. The practical meaning of the equation of state for Pi = 0 in the semi-crystalline polymers has been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 21, 4 October 2006, Pages 7455-7459
Journal: Polymer - Volume 47, Issue 21, 4 October 2006, Pages 7455-7459
نویسندگان
S. Saeki, F. Wang, Y. Tanaka,