Fluid-liquid and fluid-solid transitions of poly(ethylene-co-octene-1) in sub- and supercritical propane solutions

被引:25
作者
Chan, KC
Adidharma, H
Radosz, M
机构
[1] Louisiana State Univ, Dept Chem Engn, Baton Rouge, LA 70803 USA
[2] Louisiana State Univ, Macromol Studies Grp, Baton Rouge, LA 70803 USA
关键词
D O I
10.1021/ie990761e
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Fluid-liquid (FL) and fluid-solid (FS) phase transitions are measured and correlated with two SAFT equations of state for poly(ethylene-co-octene-1) solutions in sub- and supercritical propane. The polymer concentration is found to have a weak effect on both FL and FS transitions in the range of this study (0.01-0.1 polymer weight fraction). Increasing molecular weight is found to increase the FL pressure and FS temperature, whereas increasing branch density is found to decrease the FL pressure and FS temperature.
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页码:3069 / 3075
页数:7
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