A review of the slow relaxation processes in the glass–rubber transition region of amorphous polymers

Abstract

This article is a review that introduces several articles about slow relaxation processes, also known as slower segmental dynamics. According to the literature, the coupling effect and free volume holes are two important elements for slower micro-dynamics. In addition, the slower processes of many-body systems (blend and diluted systems) are summarised. A good numerical method for detecting multiple modes in the glass–rubber transition region is introduced.

Keywords:

• slow relaxation process
• molecular motion
• coupling model
• diluted and blend systems
• two-dimensional correlation analyses

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the open fund (PLN1429) of the State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University). The authors also gratefully acknowledge financial support from the Sichuan Provincial Department of Education Natural Science Foundation of China [Project No. Province 596102A071] and projects (new material B026, new material B046) from the Geological Research Institute of Shengli Oil Field, Sinopec Ltd. Corp.