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Dresden 2006 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 9: SYMPOSIUM Disperse Polymer Systems II

CPP 9.2: Talk

Tuesday, March 28, 2006, 14:30–14:45, ZEU 160

A microscopic look at the reinforcement of silica filled rubber — •Ekkehard Straube1, Alberto Botti2, Wim Pyckhout-Hintzen3, and Dieter Richter31Uni Halle-Saale — 2Uni Roma TRE, Italy — 3Forschungszentrum Jülich

The deformed state of filled rubbers under uniaxial strain has been investigated by a combination of SAXS and SANS. Using an extraction procedure the single chain scattering behavior as well as filler properties could be obtained. For the first time the deformation of the rubbery matrix on the length scale of a network chain is determined and no overstrain is observed. Likewise, the determination of filler deformation and filler destruction enables a first microscopic observation of possible mechanisms of the stress-softening Mullins-effect.

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