The restrictive relationship between "structure

properties and molecular motion" is the core theory of

Polymer Physics

among which "molecular motion" is extreme abstract and brings about great difficulties for students to learn. In response to this problem

a comprehensive experiment about "structure and properties of shape memory poly(lactic acid)/poly(propylene carbonate) blend materials" was designed by integrating the scientific research results of teachers’. By this experiment

students will systematically and specifically understand the relationships of "phase structure and molecular motion"

"molecular motion and mechanical properties"

"molecular motion and shape memory function" . Meanwhile

they will master the experimental technology of thermal analysis

scanning electron microscopy

mechanical properties and shape memory function

and experience the typical application of basic polymer theory in the creation of new materials.