TY - JOUR
T1 - Disorientation kinetics of aligned polymer layered silicate nanocomposites
AU - Ren, Jiaxiang
AU - Casanueva, Barbara F.
AU - Mitchell, Cynthia A.
AU - Krishnamoorti, Ramanan
PY - 2003/6/3
Y1 - 2003/6/3
N2 - The kinetics of disorientation of polymer layered silicate nanocomposites following alignment of the silicate layers by prolonged large amplitude oscillatory shear are examined using linear viscoelastic measurements. Nanometer thick disks with diameters of 30 nm, 0.3-0.6 μm, and 5 μm dispersed in polymer matrices exhibit disorientation kinetics that are non-Brownian. The disorientation process exhibits signatures of aging observed in soft-colloidal glasses and is shown to be independent of temperature, nanoparticle size, and chemical details, viscoelasticity and molecular weight of the polymeric matrix.
AB - The kinetics of disorientation of polymer layered silicate nanocomposites following alignment of the silicate layers by prolonged large amplitude oscillatory shear are examined using linear viscoelastic measurements. Nanometer thick disks with diameters of 30 nm, 0.3-0.6 μm, and 5 μm dispersed in polymer matrices exhibit disorientation kinetics that are non-Brownian. The disorientation process exhibits signatures of aging observed in soft-colloidal glasses and is shown to be independent of temperature, nanoparticle size, and chemical details, viscoelasticity and molecular weight of the polymeric matrix.
UR - http://www.scopus.com/inward/record.url?scp=0038407496&partnerID=8YFLogxK
U2 - 10.1021/ma025703a
DO - 10.1021/ma025703a
M3 - Article
SN - 0024-9297
VL - 36
SP - 4188
EP - 4194
JO - Macromolecules
JF - Macromolecules
IS - 11
ER -