We develop a "first principles" coarse-graining procedure based on a soft effective segment representation of an athermal AB diblock copolymer model in selective solvent, to map out the self-assembly phase diagram for several asymmetry ratios f using Monte Carlo free energy calculations. We find that the free energy per unit volume is surprisingly insensitive to the aggregation number of monodisperse cubic and cylindrical phases for a given polymer volume fraction. The cylindrical phase is found to pre-empt the cubic micellar phases for nearly symmetric (f ≃ 0.6) copolymers. © 2010 The Royal Society of Chemistry.
Capone, B., Hansen, J.-., Coluzza, I. (2010). Competing micellar and cylindrical phases in semi-dilute diblock copolymer solutions. SOFT MATTER, 6(24), 6075-6078 [10.1039/c0sm00738b].
Competing micellar and cylindrical phases in semi-dilute diblock copolymer solutions
Capone B.
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2010-01-01
Abstract
We develop a "first principles" coarse-graining procedure based on a soft effective segment representation of an athermal AB diblock copolymer model in selective solvent, to map out the self-assembly phase diagram for several asymmetry ratios f using Monte Carlo free energy calculations. We find that the free energy per unit volume is surprisingly insensitive to the aggregation number of monodisperse cubic and cylindrical phases for a given polymer volume fraction. The cylindrical phase is found to pre-empt the cubic micellar phases for nearly symmetric (f ≃ 0.6) copolymers. © 2010 The Royal Society of Chemistry.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
