Characteristics Of Compatible Binary Polymer Blendsdeduced From Dsc Thermograms. 1. A Study On Polyvinylrnalcohol - Polyvinyl Pyrrolidone Mixtures

摘要

Effects of interchain interactions on the thermal processes of glass transition, melting and crystallization were evidenced for the mixture of polyvinyl alcohol and polyvinyl pyrrolidone. The experimental data were analyzed by using theoretical calculations to obtain information about the relative strength of the homo and hetero-interchain interactions. A deduction is that the known calculation expressions for the thermal parameters and effects are rather specificless and, therefore, both the theory and the measurement accuracy should be still improved. The DSC method was exhaustively used.