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Toughening of trifunctional epoxy using an epoxy-functionalized hyperbranched polymer

journal contribution
posted on 29.08.2003, 00:00 authored by D Ratna, Russell VarleyRussell Varley, G P Simon
Chemorheology of curing as well as the phase separation behavior of an epoxy-functionalized hyperbranched polymer (HBP)-modified triglycidyl p-amino phenol (TGAP) epoxy mixtures has been studied by several techniques. There was little change in gel time as a result of addition of HBP up to 10% of HBP, even though the HBP reacts at a slower rate with amine hardeners compared to the TGAP alone. The thermal and dynamic viscoelastic behavior of the modified matrices have been examined and compared with the unmodified TGAP matrix. Finally, impact properties have been discussed in terms of the morphological behavior for a TGAP matrix modified with various amounts of HBP.

History

Journal

Journal of applied polymer science

Volume

89

Issue

9

Pagination

2339 - 2345

Publisher

Wiley

Location

Hoboken, N.J.

ISSN

0021-8995

eISSN

1097-4628

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2003, Wiley