Tetrachlorobisphenol-A adipate polymers. II. Spherulitic crystallization of poly(tetrachlorobisphenol-A adipate)

The spherulitic radical growth rate G of poly(tetrachlorobisphenol-A adipate) was studied at different crystallization temperatures as a function of molecular weight using an optical polarizing microscope. By assuming a two-dimensional growth mechanism, with a jump factor G₀ depending on the molecular weight, and assuming surface energy terms σ_u and σ_e essentially constant, it is possible to correlate the growth-rate data with the model of Hoffman.