LOCAL COMPOSITION MODEL FOR SQUARE-WELL CHAINS USING THE GENERALIZED FLORY DIMER THEORY

被引:14
作者
BOKIS, CP
DONOHUE, MD
HALL, CK
机构
[1] JOHNS HOPKINS UNIV,DEPT CHEM ENGN,BALTIMORE,MD 21218
[2] N CAROLINA STATE UNIV,DEPT CHEM ENGN,RALEIGH,NC 27695
关键词
D O I
10.1021/j100205a072
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The generalized Flory dimer (GFD) theory of Hall and co-workers Provides a highly accurate equation of state for hard-chain molecules. It has been extended here to treat chain molecules that interact with a square-well site-site potential by using closed-form expressions for the equations of state for square-well monomer and dimer fluids based on local composition theory and using the analytic solution of the Percus-Yevick theory for monomers and RISM/MSA calculations for dimers. Comparison with Monte Carlo calculations for square-well molecules of lengths 4, 8, and 16 shows that there is very good agreement between this theory and simulation data.
引用
收藏
页码:11004 / 11009
页数:6
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