Probing the Spatial Ordering and Orientation of Block Copolymer Nanodomains On a Layer of Cross-Linked Homopolymer by Grazing Incident Small
In this proposal, we aim to understand how the diffusion and penetration depth of block copolymer (BCP) chains within a PS layer with varied cross-linking densities influence the spatial ordering and orientation of BCP nanodomains at an elevated temperature using grazing incident small angle neutron scattering (GISANS) technique. The motion of polymeric chains will be controlled by thermal annealing at 210 and 230 oC. To gain an in-depth understanding of correlations between penetration length and cross-linking density, we will characterize PS-b-PMMA thin films of different MWs on a layer of dPS with different cross-linking densities after thermal annealing of varying durations at 210 and 230 oC.
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WU Chun-Ming; CHANG Iris; CHEN Yi Fang; GUTFREUND Philipp; PORCAR Lionel and SUN Ya-Sen. (2018). Probing the Spatial Ordering and Orientation of Block Copolymer Nanodomains On a Layer of Cross-Linked Homopolymer by Grazing Incident Small. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1851
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