Rheological study of microstructures and properties for polymeric materials

摘要

Rheological measurement has been a preferred approach in the characterization of the formation and evolu-tion of microstructures for multi-component or multi-phase polymeric material systems owing to its sensitive response to changes of microstructures for heterogeneous polymers.In the present paper,based on applications of dynamic rheologi- cal measurements to multi-component polymer systems, some of the latest progress in studies on the correlations between the microstructure change and rheological response has been introduced as two aspects:relationships between viscoelastic behavior and microstructure of nano-composites and relationships between rheological behavior and liquid- solid transition in isothermal crystallization of polyolefins. By means of rheological measurements,not only some valu-able particulars responsible for the evolution of morphology and structure dealing with these polymer systems can be obtained,but also the corresponding results are in favor of designing and preparing novel polymer-based composites and functional materials.