TY - JOUR
T1 - Silica-filled elastomers
T2 - Polymer chain and filler characterization by a SANS-SAXS approach
AU - Botti, A.
AU - Pyckhout-Hintzen, W.
AU - Urban, V.
AU - Kohlbrecher, J.
AU - Richter, D.
AU - Straube, E.
PY - 2002/12
Y1 - 2002/12
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0037004746&partnerID=8YFLogxK
U2 - 10.1007/s003390201525
DO - 10.1007/s003390201525
M3 - Article
AN - SCOPUS:0037004746
SN - 0947-8396
VL - 74
SP - S513-S515
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - SUPPL.I
ER -