Silica-filled elastomers: Polymer chain and filler characterization by a SANS-SAXS approach

A. Botti, W. Pyckhout-Hintzen, V. Urban, J. Kohlbrecher, D. Richter, E. Straube

Research output: Contribution to journalArticlepeer-review

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Abstract

A study of composites based upon commercially available silica fillers and networks of blends of protonated and deuterated anionically prepared polyisoprene is presented. The extraction of the single chain structure factor for SANS in the polymeric soft phase in isotropic and deformed state has been performed for the first time. The quasi three-component system could not be compositionally matched due to the internal structures of the activated fillers. For this, a parallel SAXS investigation provided the necessary information on the filler structure which was lacking in the SANS analysis. Whereas mechanically clear reinforcement at low strains and filler-networking can be observed, the microscopic characterization of the chain deformation in the framework of the network tube model agrees with the estimates for hydrodynamic reinforcement of fractal fillers.

Original languageEnglish
Pages (from-to)S513-S515
JournalApplied Physics A: Materials Science and Processing
Volume74
Issue numberSUPPL.I
DOIs
StatePublished - Dec 2002
Externally publishedYes

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