Statistical thermodynamics of swollen polymer networks

摘要: To obtain an expression for the entropy S of a polymer network at volume V, assumption is made that V0 can be defined which distribution end-to-end distances same as in solution freely dispersed chains and Gaussian, V likewise Gaussian. Although these assumptions are those by Flory, formula obtained differs from Flory's. The results where n number solvent molecules, ϕ fraction polymer, G (i. e., chain portions between crosslinks), Ω factor structural pattern reduces accessible configurations. customary independent. consequences result discussed. Flory's method was to calculated “entropy crosslinking” considering probability certain segments found each other's vicinity. error calculation lies two arbitrary vicinity independent whether other pairs or not. If this avoided, becomes identical with one derived present article. Arguments given show assumed Guth James erroneous. A consideration equilibrium proves their must rejected also on experimental grounds.