Low-Temperature Mobility at Surfaces of Amorphous Polymeric Solids
Low-temperature processing of polymer materials is a technological challenge in the field of materials science and engineering.Compared with the molecules in the bulk,polymer chains at the surfaces have depressed glass transition temperature,reduced viscosity,enhanced plasticity,as well as increased ability to be deformed and flow at reduced temperatures,thus providing unique insights into low-temperature processing of polymer materials.In this paper,we summarized the recent research advances on the surface molecular motion of amorphous polymer materials and discussed the origin of the enhanced surface mobility at a low temperature.Moreover,we elaborated the exploration of exploiting the enhancement of low-temperature mobility at polymeric surfaces to enhance cold bonding,self-healing and low-temperature processing of polymer materials.This paper is helpful in deepening our understanding of the polymer surface chain dynamics and could inspire further works to enhance the processability of polymer materials at a reduced low-temperature through well harnessing of the surface mobility.
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维普
