The paper represents the situation of internal friction researches for polymer blends and composites

and analyses specially the correlation between internal friction behavior and microstructure.It is found that both intermolecular interaction in polymer blends and composite interface interaction are reflected by internal friction features at molecular level

therefore

internal friction measurement is sensitive probe for characterizing supermolecular structure in polymer blend and composite interface microstructure.The intrival problem needed to be considered in the future includes the studying of internal friction mechanism

establishing appropriate model to describe the internal friction behavior and giving definite physical meaning for characteristic parameters.