Flory-Huggins model of equilibrium polymerization and phase separation in the Stockmayer fluid

被引：60

作者：

Dudowicz, J

Freed, KF

Douglas, JF

机构：

[1] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

[2] NIST, Div Polymers, Gaithersburg, MD 20899 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.92.045502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The competition between chain formation and phase separation in the Stockmayer fluid (SF) of dipolar particles is analyzed using a renormalized Flory-Huggins model of equilibrium polymerization. Calculated critical properties (T(c), phi(c), Z(c)) for the SF compare favorably with simulations over a wide range of the dimensionless dipolar (or "sticking") energy mu(*). We find that the polymerization transition preempts phase separation for a large mu(*), i.e., (mu(*))(2)>22.

引用

收藏

页码：4 / 455024

页数：4

相关论文

共 35 条

[1] Living polymers in a size-asymmetric electrolyte [J].

Bastea, S .

PHYSICAL REVIEW E, 2002, 66 (02) :1-020801

[2] A MONTE-CARLO METHOD FOR SIMULATING ASSOCIATING FLUIDS [J].

BUSCH, NA ;

WERTHEIM, MS ;

CHIEW, YC ;

YARMUSH, ML .

JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (04) :3147-3156

[3] Direct observation of dipolar chains in iron ferrofluids by cryogenic electron microscopy [J].

Butter, K ;

Bomans, PHH ;

Frederik, PM ;

Vroege, GJ ;

Philipse, AP .

NATURE MATERIALS, 2003, 2 (02) :88-91

[4]

DEGENNES PG, 1970, PHYS KONDENS MATER, V11, P189

[5] Phase transitions and tricriticality in the lattice restricted primitive model supplemented by short-range interactions [J].

Diehl, A ;

Panagiotopoulos, AZ .

JOURNAL OF CHEMICAL PHYSICS, 2003, 118 (11) :4993-4998

[6] Statistical model for the structure and gelation of smectite clay suspensions [J].

Dijkstra, M ;

Hansen, JP ;

Madden, PA .

PHYSICAL REVIEW E, 1997, 55 (03) :3044-3053

[7] Lattice model of living polymerization. I. Basic thermodynamic properties [J].

Dudowicz, J ;

Freed, KF ;

Douglas, JF .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (15) :7116-7130

[8] Lattice model of equilibrium polymerization. IV. Influence of activation, chemical initiation, chain scission and fusion, and chain stiffness on polymerization and phase separation [J].

Dudowicz, J ;

Freed, KF ;

Douglas, JF .

JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (23) :12645-12666

[9] Lattice model of living polymerization. II. Interplay between polymerization and phase stability [J].

Dudowicz, J ;

Freed, KF ;

Douglas, JF .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (02) :1002-1010

[10] Lattice model of living polymerization. III. Evidence for particle clustering from phase separation properties and "rounding" of the dynamical clustering transition [J].

Dudowicz, J ;

Freed, KF ;

Douglas, JF .

JOURNAL OF CHEMICAL PHYSICS, 2000, 113 (01) :434-446

← 1 2 3 4 →