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1. (WO2015119688) SHAPE-MEMORY-SELF-HEALING POLYMERS (SMSHPS)

Pub. No.:    WO/2015/119688    International Application No.:    PCT/US2014/064986
Publication Date: Fri Aug 14 01:59:59 CEST 2015 International Filing Date: Wed Nov 12 00:59:59 CET 2014
IPC: C08G 18/32
C08L 75/04
Applicants: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
Inventors: SODANO, Henry, A.
HEO, Yunseon
Title: SHAPE-MEMORY-SELF-HEALING POLYMERS (SMSHPS)
Abstract:
A shape-memory self-healing polymeric network (SMSHP) is useful as a molded part or coating that can be repaired by heating to a controlled temperature. The SMSHP has thermally reversible repeating units where a thermally reversible adduct is situated between two common linking units formed during a polymerization process between thermally reversible monomers and cross-linking monomers. Optionally, other repeating units can be present from other monomers. Shape-memory results when the SMSHP is warmed to a temperature in excess of its glass transition temperature and self-healing then proceeds when a higher temperature is achieved where thermally reversible adducts dissociates to complementary groups that subsequently reform the adduct without distortion of the memorized shape. The thermally reversible adducts can be Diels-Alder (DA) adducts in a polyurethane, poly urea, or amine epoxy SMSHP network.