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Bioactive composites with designed interphases based on hyperbranched macromers
Author(s) -
Oréfice Rodrigo L.,
Clark Arthur E.,
Brennan Anthony. B.
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22326
Subject(s) - materials science , interphase , composite material , silane , grafting , polymer , phase (matter) , adhesion , chemical engineering , chemistry , organic chemistry , genetics , engineering , biology
A series of designed interphases was produced by grafting chemically modified poly (aryl ether sulfones) (PSF) onto bioactive glass (BAG) particles. Macromolecular architecture, polymer morphology, composition and crosslink density of these PSF hybrid interphases were studied with respect to influence on mechanical properties. The hybrid PSF interphases improved mechanical strength by 20% over conventional silane treatments and increased the overall energy to failure by nearly 100%. The structure of the interphase was modeled with a three‐phase viscoelastic model. The results demonstrated the ability to engineer an interphase having hyperstructures containing mobile species and inorganic functionalities that improve adhesion and favor energy release during fracture processes. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 1153–1166, 2006