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Thermally Reversible Cross‐Linked Polyamides with High Toughness and Self‐Repairing Ability from Maleimide‐ and Furan‐Functionalized Aromatic Polyamides
Author(s) -
Liu YingLing,
Chen YiWen
Publication year - 2007
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200600445
Subject(s) - maleimide , polyamide , polymer chemistry , furan , toughness , polymer , materials science , chemistry , organic chemistry , composite material
Polyamides having various amounts of maleimide (PA‐MI) and furan (PA‐F) pendent groups, respectively, as well as their cross‐linked polymers (PA‐MI/PA‐F) were prepared. PA‐MI/PA‐F cross‐linked polymers showed thermally reversible cross‐linking behavior via Diels‐Alder (DA) and retro‐DA reactions. Cross‐linked PA‐MI/PA‐F films exhibited enhanced toughness and mechanical properties compared to PA‐MI and PA‐F precursors. Moreover, PA‐MI/PA‐F films also showed thermal self‐repairing behavior, which was observed in the micrographs and instron tests.