TY - JOUR
T1 - A mode coupling theory analysis of viscoelasticity near the kinetic glass transition of a copolymer micellar system
AU - Mallamace, Francesco
AU - Tartaglia, Piero
AU - Chen, Wei Ren
AU - Faraone, Antonio
AU - Chen, Sow Hsin
PY - 2004/11/27
Y1 - 2004/11/27
N2 - We report a set of viscoelastic measurements in concentrated aqueous solutions of a copolymer micellar system with short-range inter-micellar attractive interactions, a colloidal system characterized, in different regions of the composition-temperature phase diagram, by the existence of a percolation line (PT) and a kinetic glass transition (KGT). Both these transitions cause dramatic changes in the system viscoelasticity. Whereas the observed variations of the shear moduli at the PT are described in terms of percolation models, for the structural arrest at the KGT we investigate the frequency-dependent shear modulus behaviours by using a mode coupling theory (MCT) approach.
AB - We report a set of viscoelastic measurements in concentrated aqueous solutions of a copolymer micellar system with short-range inter-micellar attractive interactions, a colloidal system characterized, in different regions of the composition-temperature phase diagram, by the existence of a percolation line (PT) and a kinetic glass transition (KGT). Both these transitions cause dramatic changes in the system viscoelasticity. Whereas the observed variations of the shear moduli at the PT are described in terms of percolation models, for the structural arrest at the KGT we investigate the frequency-dependent shear modulus behaviours by using a mode coupling theory (MCT) approach.
UR - http://www.scopus.com/inward/record.url?scp=8344281327&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/16/42/013
DO - 10.1088/0953-8984/16/42/013
M3 - Article
AN - SCOPUS:8344281327
SN - 0953-8984
VL - 16
SP - S4975-S4986
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 42
ER -