An integral equation approach to effective interactions between polymers in solution

Article Abstract:

The thread model is used for linear chains of interacting monomers and the polymer reference interaction site model (PRISM) formalism to analyze the monomer-monomer pair correlation function h(sub mm)(r) for dilute and semidilute polymer solutions, over a range of temperatures. This theory proves to be an integral equation approach theory of effective pair potentials between macromolecules in solution, which could bypass costly simulations for the determination of the centers of mass (c.m.) pair correlation function.

All Other Basic Organic Chemical Manufacturing, Vinyl Chloride Monomer, Macromolecules, Monomers

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Molecular aggregation and luminescence behavior of bulk poly(2,5,2',5' - tetrahexyloxy-8,7'-dicyano-di-p-phenylenevinylene)

Article Abstract:

Structural evolution and its effect on the optical absorption behavior of poly(2,5,2',5'-tetrahexyloxy-8,7'-dicyano-di-p-phenylenevinylene) (DH-CNPPV) upon short term isothermal heat treatment at evaluated temperatures were studied. Results indicated that Kinetic preference for mesomorphic order in bulk DH-CNPPV, with the isotropizavicinity of 210 degree C.

Electroluminescence

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Liquid-state theory of structure, thermodynamics, and phase separation in suspensions of rod polymers and hard spheres

Article Abstract:

A new theory, polymer reference interaction site model (PRISM) is formulated, to treat rigid rod-particle suspensions. For this, a new microscopic site-site integral equation approach for needle-sphere suspensions, which includes nonlocal entropic repulsion effects within a thermodynamically self-consistent framework, is developed.

Thermodynamics, Colloid chemistry

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