W Carothers 1929 step-growth nylon vs chain-growth polymerization distinction; Flory 1936 statistics; gel-point Stockmayer 1944; Mn = M0/(1-p) Carothers eqn.
W Carothers 1929 step-growth nylon vs chain-growth polymerization distinction; Flory 1936 statistics; gel-point Stockmayer 1944; Mn = M0/(1-p) Carothers eqn.