Quantum Physics Division

Publications

Computer simulation of structure and microphase separation in model A-B-A triblock copolymers

M. Banaszak^{1}
,
S. Wołoszczuk^{1}
,
T. Pakuła^{2}
,
S. Jurga^{1}

^{1} Macromolecular Physics Laboratory, Institute of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznan, Poland

^{2} Max-Planck-Institute for Polymer Research, P.O. Box 3148, D-55021 Mainz, Germany

**Physical Review E, 66, 031804 (2002)**

**DOI:** 10.1103/PhysRevE.66.031804

Abstract:

A set of computer simulations for three symmetric A-B-A triblock copolymer microarchitectures at varying temperatures is reported. By using the cooperative motion algorithm we obtain energy, specific heat, end-to-end distance, and bridging fraction as a function of the reduced temperature. The order- disorder transition temperatures are determined, an outline of a symmetric A-B-A triblock copolymer phase diagram is presented, and the visualization of different microstructures is given. A bicontinuous microstructure is reported at 67% fraction of A component.

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