多相高分子系の粘弾性と分子強化

概要

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It was indicated that the viscoelastic measurements are useful tools for characterization of polymeric solids when they are employed in addition to the superstructural characterization. After crystalline relaxation was established by using single crystal mats, relaxation curves of highly oriented crystalline polymers were analyzed as a function of direction of external force. As a result the concept of tie molecule was proposed. One method for increasing the tie molecule fraction is to introduce the rigid rod-like molecules into the flexible chain matrix as reinforcements. Preparation methods, modulus evaluation and stress-strain behavior of molecular composites are discussed. Several successful examples are cited and the necessary conditions for the molecular composites are indicated. This method is similarly effective for reinforcing amorphous multiphase systems.
日本レオロジ-学会の論文