Length scale of mechanical heterogeneity in a glassy polymer determined by atomic force microscopy

Abstract

Articles you may be interested inMolecular dynamic simulation of tip-polymer interaction in tapping-mode atomic force microscopy

Roles of intermediate-range orders on the glass transition process: Fictive temperature, residual entropy, relaxation time and boson peak

“…The experimental value of S 0 is obtained using T f = T f1 in Eq. (16). Narayanaswamy [22] experimentally observed that there are two relaxation mechanisms in borosilicate crown glass with widely different relaxation times and presented a model with two fictive temperatures.…”

“…The curve ① is an equilibrium line expected to be calculated by Eqs. (11) and (16). The curve ② is a nonequilibrium line expected to be obtained by experiments.…”

“…4 shows the temperature dependence of the viscosity of metaphosphate glass. The data (○) were obtained by our method [21] and the data 11) and (16). The curve ② is a nonequilibrium line expected to be obtained by experiments.…”

“…Especially, Eckstein et al [13] showed by X-ray diffraction the existence of IROs in low molecular weight organic liquids. For glasses, Sokolov et al [14] showed that they existed in a silica glass by Raman and X-ray spectroscopies, Hirotsu et al [15] showed their existence in a metallic glass by transmission electric microscopy, and Wang et al [16] observed IROs in a polymeric glass by atomic force microscopy. It is considered that IROs have different forms and appear as CRRs in simple liquids, as broken bonds in network glasses, as topological distributions of atomic centers in metallic glasses, and as groups of segments in polymers.…”

The order parameter of glass transition: Spontaneously delocalized nanoscale solitary wave with transverse ripplon-like soft wave

“…In this short article it has been referred to as the Nanoscale Heterogeneity theory. 15 The replica trick is a way of accounting for the frozen randomness. By comparing Edwards' replica trick 16 with the inverse cascade -cascade mode, the picture of the latter coinciding with the description of Edwards' replica theory has been confirmed.…”