The size of a polymer molecule in a strong solution

The actual expression for the probability distribution is deduced as a function of temperature and solute density, since experiment is now reaching the point where such systems can be studied, and also because the problem is one of the rare problems in polymer theory which can be solved, and is non-trivial. If the effective repulsive interaction near the Flory theta temperature is nu = omega (T- theta ), rho is the solute density and l is the step length of the polymer, the end-to-end distance ((R(L)-R(0)) 2 )=Ll(1+a omega (T- theta ) 1/2 rho -1/2 ) under conditions in which the correction term is small, where a is a constant. This expression vanishes at T= theta and rho = infinity , as it must.