A theoretical model of supramolecular SLCP induced by H-bonds

The supramolecular SLCP induced by H-bonds is an oriented blend, By introdu ction of the self-assembly into Flory-Huggins theory, the free energy of mi xing and chemical potential of components in isotropic phase were described , The free energy of mixing and chemical potential of components in nematic phase were calculated based on Maier-Saupe theory. The theoretical model o n the equilibrium phase diagram of the oriented blend was thus set up. Dire ction and saturation of hydrogen bonds in self-assembly determine the capab ility of Host-Guest complex, This is a balance point at which the supramole cule has the highest stability, the Ti is the highest, so there is a peak i n the phase diagram. The factors which affect the capability of the Host-Gu est complex balance point are the interaction parameter of hydrogen Lends a nd carboxyl concentration in the copolymer, The stability increases with in crease in interaction parameter of H-bond and carboxyl concentration; furth ermore, the peak shifts to a low concentration of low mass molecule. There is a critical value for the molecular weight, which affects the stability o f mesophase. Over it, Ti is independent on the molecular weight, and the se lf-assembly is decoupled completely.