Fluid-liquid transitions of poly(ethylene-co-octene-1) in supercritical ethylene solutions

被引：27

作者：

Chan, AKC

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

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2000年 / 39卷 / 11期

关键词：

D O I：

10.1021/ie990851j

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Fluid-liquid pressures are measured and correlated with two SAFT equations of state for poly(ethylene-co-octene-1) solutions in supercritical ethylene at temperatures up to 180 degreesC. These cloud-point pressures are found to depend strongly on the molecular weight of the polymer and the branch density but weakly on the polymer concentration in the range from 0.05 to 0.15 polymer weight fraction. EO solutions in ethylene are found to exhibit U-LCST behavior.

引用

页码：4370 / 4375

页数：6

共 15 条

[1] Prototype of an engineering equation of state for heterosegmented polymers
Adidharma, H
Radosz, M
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1998, 37 (11) : 4453 - 4462
[2] Copolymer SAFT equation of state. Thermodynamic perturbation theory extended to heterobonded chains
Banaszak, M
Chen, CK
Radosz, M
[J]. MACROMOLECULES, 1996, 29 (20) : 6481 - 6486
[3] Chan AKC, 2000, FLUID PHASE EQUILIBR, V173, P149
[4] Fluid-liquid and fluid-solid transitions of poly(ethylene-co-octene-1) in sub- and supercritical propane solutions
Chan, KC
Adidharma, H
Radosz, M
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (08) : 3069 - 3075
[5] Phase equilibria of dilute poly(ethylene-co-1-butene) solutions in ethylene, 1-butene, and 1-butene plus ethylene
Chen, AQ
Radosz, M
[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1999, 44 (04) : 854 - 859
[6] PHASE-BEHAVIOR OF POLY(ETHYLENE-1-BUTENE) IN SUBCRITICAL AND SUPERCRITICAL PROPANE - ETHYL BRANCHES REDUCE SEGMENT ENERGY AND ENHANCE MISCIBILITY
CHEN, SJ
BANASZAK, M
RADOSZ, M
[J]. MACROMOLECULES, 1995, 28 (06) : 1812 - 1817
[7] DENSITY-TUNED POLYOLEFIN PHASE-EQUILIBRIA .1. BINARY-SOLUTIONS OF ALTERNATING POLY(ETHYLENE PROPYLENE) IN SUBCRITICAL AND SUPERCRITICAL PROPYLENE, 1-BUTENE, AND 1-HEXENE - EXPERIMENT AND FLORY-PATTERSON MODEL
CHEN, SJ
RADOSZ, M
[J]. MACROMOLECULES, 1992, 25 (12) : 3089 - 3096
[8] The influence of branching on high-pressure vapor-liquid equilibria in systems of ethylene and polyethylene
deLoos, TW
Poot, W
Lichtenthaler, RN
[J]. JOURNAL OF SUPERCRITICAL FLUIDS, 1995, 8 (04) : 282 - 286
[9] FLUID PHASE-EQUILIBRIA IN THE SYSTEM POLYETHYLENE + ETHYLENE .1. SYSTEMS OF LINEAR POLYETHYLENE + ETHYLENE AT HIGH-PRESSURE
DELOOS, TW
POOT, W
DIEPEN, GAM
[J]. MACROMOLECULES, 1983, 16 (01) : 111 - 117
[10] PHASE-EQUILIBRIA IN HIGH-PRESSURE POLYETHYLENE TECHNOLOGY
FOLIE, B
RADOSZ, M
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1995, 34 (05) : 1501 - 1516

← 1 2 →