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Author: august bosse
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1. Block Copolymer Ordering With a Spatiotemporally Inhomogeneous Mobility
August W. Bosse, Jack F Douglas, Brian Berry, Ronald Leland Jones, Alamgir Karim
Motivated by recent measurements of zone annealing in block copolymer films at low temperatures, we implement a spatiotemporal mobility gradient with intrinsic variations associated with dynamic heterogeneities in the saddle point relaxation of a dib ...
2. Microdomain Ordering in Laterally Confined Block Copolymer Thin Films
August W. Bosse, Carlos Garcia-Cervera, Glenn Fredrickson
We examine the effects of small-scale, hexagonal, lateral confinement on microdomain ordering in $AB$ diblock copolymer thin films using self-consistent field theory (SCFT) simulations. Specifically, we examine a hexagonal confinement well with side ...
3. Orientational Order in Block Copoloymer Films Zone Annealed Below the Order-Disorder Transition Temperature
Brian Berry, August W. Bosse, Jack F Douglas, Ronald Leland Jones, Alamgir Karim
Cold zone annealing (CZA) is a thermal treatment involving pulling a thin block copolymer (BCP) film over a heated region having a temperature significantly above the glass-transition temperature, but well below the film order-disorder temperature. W ...
4. Well-Ordered Polymer Melts with 5 nm Lamellar Domains from Blends of a Disordered Block Copolymer and a Selectively Associating Homopolymer of Low or High Molar Mass
Vijay Tirumala, August W. Bosse, Eric K Lin, Vikram Daga, Alvin Romang, Jan Ilavsky, J J. Watkins
The use of short chain block copolymer melts as nanostructured templates for sub-10 nm domains is often limited by their low segregation strength (N). Since increasing molar mass to strengthen segregation also increases the interdomain spacin ...