Browsing University of Waterloo by Author "Rasmussen, Kim O."
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Improved convergence in block copolymer self-consistent field theory by Anderson mixing
Thompson, Russell B.; Rasmussen, Kim O.; Lookman, Turab (American Institute of Physics, 2004)A modification to real space polymeric self-consistent field theory algorithms that greatly improves the convergence properties is presented. The method is based on Anderson mixing (D. G. Anderson, J. Assoc. Comput. Mach. ... -
Ordering mechanisms in triblock copolymers
Maniadis, P.; Thompson, Russell B.; Rasmussen, Kim O.; Lookman, Turab (American Physical Society, 2004)The ordering mechanisms for an ABC triblock copolymer system are studied using self-consistent field theory. We find a two-phase mechanism, similar to what has been suggested experimentally two-step mecha- nism. Analysis ... -
Origins of Elastic Properties in Ordered Block Copolymer/Nanoparticle Composites
Thompson, Russell B.; Rasmussen, Kim O.; Lookman, Turab (American Chemical Society, 2004)We predict a diblock copolymer melt in the lamellar phase with added spherical nanoparticles that have an affinity for one block to have a lower tensile modulus than a pure diblock copolymer system. This weakening is due ...