Useful Relationship for the DSC (Differential Scanning Calorimetry) Determination of Phase Purity in Partially Phase Mixed Copolymers.

摘要

This paper reports the derivation of a useful-relationship (Equation 4) for the quantitative DSC determination of soft and hard segment purity without restricting the value of the hard segment change in heat capacity (Delta CpH). The strength of this process lies in its ability to produce a complete description of the microphase separation behavior, providing information about the soft and hard phases. By using Equation 4 and related equations, a complete description of phase purity can be obtained by DSC analysis for a wider variety of microphase separated materials. Also, the relationship between Equation 4 and the existing equations is explored, resulting in a better understanding of the conditions which allow for simplification. Keywords: Differential scanning calorimetry (DSC); Microphase separation; Reprints. (SDW)