Second Virial Coefficient of Oligo- and Poiyacrylonitrile

摘要

In this paper the observed dependences of the second virial coefficient. A_2, on she molecular weight, over a large domain of molecular weights for polyacrylonitrile (PAN) in dilute solutions were quantitatively explained by the Yamakawa theory that taks into accoumt the effects of chain ends (A_2~(E)) and chain stiffness(A_2~(HW)).