Highly Soluble Fluorinated Polyimides Synthesized with Hydrothermal Process towards Sustainable Green Technology release_nt6bzecupzdzncyjgufasot264

by Juheon Lee, Seungho Baek, Jinsu Kim, Sangrae Lee, Jinyoung Kim, Haksoo Han

Published in Polymers by MDPI AG.

2021   Volume 13, Issue 21, p3824

Abstract

Polyimides, a widely used engineering plastic, require use of large amounts of toxic and hazardous organic solvents which threaten our daily lives, calling for new and easy synthetic methods for sustainable environmentally friendly development. In this paper, highly soluble fluorinated polyimides based on 4,4′-(hexafluoroisopropylidene) diphthalic anhydride were synthesized via hydrothermal process without using any toxic organic solvents and the advantages of the newly demonstrated synthetic methods are shown by comparative analysis performed with the two conventional synthetic methods using organic solvent: thermal and chemical imidization. Lower temperature is required (~200 °C) compared to thermal imidization and functional groups for high fusibility formed more easily compared to chemical imidization. According to the comparative analysis, hydrothermally synthesized PIs showed excellent solubility and maintained high thermal stability (>500 °C) and glass transition temperature (>300 °C) compared to conventional PI. The hydrothermally synthesized polyimide is much more convenient to store and manage than other form of polyimide which is much more stable when it is exposed to humidity as it is a powder form. The hydrothermal synthetic method is verified to be a "Green" and facile method for sustainable PI synthesis.
In application/xml+jats format

Archived Files and Locations

application/pdf  4.1 MB
file_xmqooogrsvcwpipx6lp3fsswpa
mdpi-res.com (publisher)
web.archive.org (webarchive)

Web Captures

https://www.mdpi.com/2073-4360/13/21/3824/htm
2021-11-27 16:54:27 | 43 resources
webcapture_lecrsll4lnhgje3khcsil2gaue
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article-journal
Stage   published
Date   2021-11-05
Language   en ?
Container Metadata
Open Access Publication
In DOAJ
In ISSN ROAD
In Keepers Registry
ISSN-L:  2073-4360
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 75166a89-dd6a-40e1-9dfb-8a2bab4ea1d7
API URL: JSON