Effects of porous media on the phase behaviour of polypeptide solutions

Abstract

The generalized van der Waals equation for anisotropic fluids in porous media, proposed by the authors in previous works, is used to describe the effect of porous media on the phase behavior of polypeptide solutions. By introducing the temperature dependence for the depth of the potential well and the geometric parameters of the spherocylinder, the main features of phase behavior of the polypeptide poly ($\gamma$-benzyl-$L$-glutamate) (PBLG) in a solution of dimethylformamide, including the existence of two nematic phases, is reproduced. It is shown that the presence of a porous medium shifts the phase diagram to the region of lower densities and lower temperatures.

arXiv comment13 pages, 5 figures

References in corpus (4)

• Scaled particle theory for a hard spherocylinder fluid in a disordered porous medium: Carnahan-Starling and Parsons-Lee corrections
• On generalization of Van der Waals approach for isotropic-nematic fluid phase equilibria of anisotropic fluids in disordered porous medium
• Generalization of the van der Waals equation for anisotropic fluids in porous media
• Nematic-isotropic transition in a density-functional theory for hard spheroidal colloids

Cited by in corpus (1)

• Dimerizing hard spherocylinders in porous media