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Erica M. Redline, Lorraine F. Francis and Frank S. Bates Radical-cured block copolymer-modified thermosets Journal of Polymer Science Part B: Polymer Physics 49

Version of Record online: 3 JAN 2011 | DOI: 10.1002/polb.22196

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A high degree of crosslinking makes thermoset plastics brittle and prone to fracture, limiting the applications of these otherwise very interesting materials. Amphiphilic block copolymers have been shown to be effective tougheners for epoxy-thermosets. Instead, the fracture resistance of radical-cured thermosets is not significantly improved by the addition of the block copolymers, as inherent differences in network formation and the presence of network defects in the chain growth polymerized plastics somehow inhibit the ability of the micelles to toughen these materials.

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