Thermal glass transition beyond kinetics of a non-crystallizable glass-former. Issue 18 (25th April 2018)

• Record Type: Journal Article
• Authors: Philipp, Martine; Nies, Christophe; Ostermeyer, Martin; Possart, Wulff; Krüger, Jan K.
• Is Part Of: Soft matter. Volume 14:Issue 18(2018)
• Page Start: 3601
• Page End: 3611
• Publication Date: 2018-04-25
• Subjects: Soft condensed matter -- Periodicals; 530.413
• DOI: 10.1039/c7sm02359f
• Languages: English
• ISSNs: 1744-683X

Abstract

Abstract : Simultaneous access to thermodynamics and dynamics of glass-forming poly(vinylacetate) via static and dynamic thermal expansion. Abstract : A long-debated problem related to glass formation in amorphous materials is the interplay of thermodynamic, kinetic and α-relaxation processes. For the first time, low-frequency dynamics, as well as kinetic or quasi-static thermal expansion coefficients of a non-crystallizable glass-former are simultaneously measured. Based on the feedback between low-frequency dynamics and morphology, the study supports the viewpoint that glass formation can be observed in internal equilibrium, i.e. beyond kinetics, and might stem from spontaneous local-scale morphological changes.