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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
Author(s) -
Raffa Patrizio,
Kassi Adamantia,
Gosschalk Julian,
Migliore Nicola,
Polgar Lorenzo Massimo,
Picchioni Francesco
Publication year - 2021
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.202000755
Subject(s) - materials science , copolymer , styrene , diels–alder reaction , atom transfer radical polymerization , furan , polymerization , methyl methacrylate , thermosetting polymer , furfuryl alcohol , polymer chemistry , methacrylate , self healing material , self healing , chemical engineering , polymer , composite material , organic chemistry , chemistry , medicine , alternative medicine , pathology , catalysis , engineering
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.