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Any predictive method for polymer properties is complicated by effects absent from most small molecule systems such as molecular weight, thermal history and non ideal structure. Therefore most predictive methods for polymer properties limit the problem by assuming a reference for these effects and focusing on the fundamental effect of polymer structure. Typically these methods assume a well annealed monodisperse infinite molecular weight system, with no branching or structural variation. However, since the models are derived from experimental measurements that qualitatively approach these limits they do contain some inherent error due to these effects. |
