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A Structure‐Properties Relationship Study of Self‐Healing Materials Based on Styrene and Furfuryl Methacrylate Cross‐Linked via Diels–Alder Chemistry.

Authors :
Raffa, Patrizio
Kassi, Adamantia
Gosschalk, Julian
Migliore, Nicola
Polgar, Lorenzo Massimo
Picchioni, Francesco
Source :
Macromolecular Materials & Engineering. Apr2021, Vol. 306 Issue 4, p1-14. 14p.
Publication Year :
2021

Abstract

A series of copolymers of styrene and furfuryl methacrylate characterized by various molecular structures (linear and star, block and random) is synthesized via atom transfer radical polymerization, and cross‐linked with a bismaleimide by means of thermally reversible Diels–Alder (DA) reaction, to obtain self‐healing materials. The prepared materials are studied in terms of gelation, swelling, thermal, and dynamic‐mechanical analysis, with the aim of correlating relevant properties to their chemical structure. It is found that the furan/styrene ratio, as well as the molecular architecture, have a major influence on the properties. It is also found that the reversibility of the DA reaction is not complete in the solid state for materials with high cross‐linking density. This study provides some important tools for the design of materials characterized by thermally reversible behavior, which find usually application as self‐healing thermosets, coatings, or adhesives. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14387492
Volume :
306
Issue :
4
Database :
Academic Search Index
Journal :
Macromolecular Materials & Engineering
Publication Type :
Academic Journal
Accession number :
149847491
Full Text :
https://doi.org/10.1002/mame.202000755