Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 25, Issue 23, Pages 1973-1978Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200400380
Keywords
carbon black; montmorillonite; nanocomposites; positron annihilation; styrene-butadiene rubber
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The size and concentration of free-volume holes of two kinds of montmorillonite (MMT)/styrene-butadiene rubber (SBR) nanocomposites were investigated by positron annihilation lifetime spectroscopy (PALS). Strong interfacial interaction caused an apparent reduction of the free-volume fraction of rubber probably by depressing the formation of free-volume holes in the interfacial region. Interfacial interaction in MMT/SBR nanocomposites was weaker than that in SBR filled with carbon black.
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