Figure 7
(a) Speculated profiles of the crystal thickness distribution function Fc(lc) at φ ≃ 0.48, (b)–(e) long period distribution functions FL(L) (solid lines) and second-order scattering intensity distribution functions S2(φ)FL(L) (broken lines) at several different crystallinity φ values. The shapes of these asymmetric functions were estimated from the function (lc − lc*)exp[−B(lc* + δl)/kT] defined in the range lc > lc*. (B is a constant.) The first factor represents the driving force of crystallization and the second factor represents the barrier for chain folding. The convergence of distribution with increasing temperature can be accounted for by the second factor. |