Structure of poly(imide siloxane)

The structure of poly(imide siloxane) films was studied to understand mechanical and thermal (annealing) properties as a function of siloxane content. A three phase model with a broad interface is proposed to explain the observed properties. The three phase model proposed differs from the earlier two phase models for segmented copolymers of siloxanes. The structure-property relationship obtained in the present study will be helpful in defining process conditions for optimized mechanical and adhesive properties of these materials.