Second-order Phase Transition Behavior in a Polymer above the Glass Transition Temperature

14 September 2021, Version 5
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Glass transition was primarily considered to be not phase transition; however, it has similarity to the second-order phase transition. Recent single-molecule spectroscopy developments have prompted re-investigating glass transition at the microscopic scale, revealing that glass transition includes phenomena similar to second-order phase transition. They are characterized by microscopic collective polymer motion and discontinuous changes in temperature dependent relaxation times, later of which is similar to critical slowing down, within a temperature window that includes the polymer calorimetric glass transition temperature. Considering that collective motion and critical slowing down are accompaniments to critical phenomena, second-order phase transition behavior was identified in polymer glass transition.

Keywords

fluorescence
glass phase
glass transition physics
Single Molecule

Supplementary materials

Title
Description
Actions
Title
ver 5.0 ChemRxiv SupportingInfo MIshikawa
Description
The ver 5.0 Supporting Information included new data on DSC measurements and replaced data on temperature dependent relaxation times.
Actions

Supplementary weblinks

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.