Orientational order in block copolymer films zone annealed below the order--disorder transition temperature.
basic_science · Level V
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Abstract
We report measurements of rapid ordering and preferential alignment in block copolymer films zone annealed below the order-disorder transition temperature. The orientational correlation lengths measured after approximately 5 h above the glass-transition temperature ( approximately 2 microm) were an order of magnitude greater than that obtained under equivalent static annealing. The ability to rapidly process polymers with inaccessible order-disorder transition temperatures suggests zone annealing as a route toward more robust nanomanufacturing methods based on block copolymer self-assembly.
Medical subject headings
- Crystallization
- Membranes, Artificial
- Nanostructures
- Nanotechnology
- Polymethyl Methacrylate
- Polystyrenes