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Enhanced chemical reworkability of DGEBA thermosets cured with rare earth triflates using aromatic hyperbranched polyesters (HBP) and multiarm star HBP-b-poly(e-caprolactone) as modifiers

Autor
Tomuta, A.; Fernandez-Francos, X.; Ferrando, F.; Ramis, X.; Serra, M. À.
Tipus d'activitat
Article en revista
Revista
Polymers for advanced technologies
Data de publicació
2013-11
Volum
24
Número
11
Pàgina inicial
962
Pàgina final
970
DOI
10.1002/pat.3171
Resum
A hyperbranched aromatic polyester (HBPOH) has been synthesized, and poly(e-caprolactone) arms have been grown on some of its end hydroxyl groups (HBPCL). These modifiers have been used in cationic diglycidyl ether of bisphenol A formulations cured with ytterbium triflate as cationic initiator. The effect of HBPOH and HBPCL on the curing kinetics has been studied using differential scanning calorimetry (DSC). The obtained materials have been characterized by dynamomechanical analysis, DSC, therm...
Paraules clau
Dgeba, Hyperbranched Polymer, Impact Strength, Reworkability, Thermoset
Grup de recerca
POLTEPO - Polímers Termoestables Epoxídics

Participants