Cavitation in block copolymer modified epoxy revealed by in situ small-angle X-ray scattering

Carmelo Declet-Perez, Lorraine F. Francis, Frank S. Bates

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Simultaneous small-angle X-ray scattering (SAXS) and tensile experiments were performed on epoxies modified with approximately 30 nm diameter rubbery and glassy core block copolymer micelles. The in situ SAXS data, interpreted using established analytical models, reveals efficient and coherent cavitation of the spherical rubbery cores coincident with yielding and absence of cavitation in the glassy nanodomains. These results are quantitatively anticipated by recent theory that accounts for cavitation in rubber toughened plastics as a function of particle size.

Original languageEnglish (US)
Pages (from-to)939-943
Number of pages5
JournalACS Macro Letters
Volume2
Issue number10
DOIs
StatePublished - Oct 28 2013

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