TY - JOUR
T1 - Depletion interactions
T2 - A new control parameter for the self-assembly of diblock copolymer micelles
AU - Abbas, Sayeed
AU - Lodge, Timothy P.
PY - 2007/9/28
Y1 - 2007/9/28
N2 - Small angle neutron scattering was performed on disordered mixtures of nonadsorbing homopolymer (A) chains and diblock (A-B) copolymer micelles in an A selective solvent. Increasing the molecular weight or concentration of A led to an increase in the aggregation number, and a decrease in the effective hard-sphere diameter of the micelles. Furthermore an intermicellar attractive force developed, which was successfully modeled by the Asakura-Oosawa depletion potential. Via an alternative model we also extracted information about mesoscopic clusters of micelles formed due to this attractive force.
AB - Small angle neutron scattering was performed on disordered mixtures of nonadsorbing homopolymer (A) chains and diblock (A-B) copolymer micelles in an A selective solvent. Increasing the molecular weight or concentration of A led to an increase in the aggregation number, and a decrease in the effective hard-sphere diameter of the micelles. Furthermore an intermicellar attractive force developed, which was successfully modeled by the Asakura-Oosawa depletion potential. Via an alternative model we also extracted information about mesoscopic clusters of micelles formed due to this attractive force.
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U2 - 10.1103/PhysRevLett.99.137802
DO - 10.1103/PhysRevLett.99.137802
M3 - Article
C2 - 17930639
AN - SCOPUS:34848818305
SN - 0031-9007
VL - 99
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 137802
ER -