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• W3110147287 endingPage "17486" @default.
• W3110147287 startingPage "17476" @default.
• W3110147287 abstract "Bottlebrush block copolymers (BBCPs) are intriguing architectural variations on linear BCPs with highly tunable structure. Confinement can have a significant impact on polymer assembly, giving rise to changes in morphology, assembly kinetics, and properties like the glass transition. Given that confinement leads to significant changes in the persistence length of bottlebrush homopolymers, it is reasonable to expect that BBCPs will see significant changes in their structure and periodicity relative to the bulk morphology. Understanding how confinement influences assembly will be important for designing BBCPs for thin film applications including membranes, integrated photonic structures, and potentially BCP lithography. In order to study the effects of confinement on BBCP conformation and morphology, a blade coating was used to prepare films with continuous variation in film thickness. Unlike thin films of linear BCPs, islands/holes were not observed, and instead mixtures of parallel and perpendicular morphologies emerge after annealing. The lamellar periodicity (L0) of the morphologies is found to be thickness dependent, increasing L0 with decreasing film thickness for blade coated films. Films coated out of tetrahydrofuran (THF) resulted in a single well-defined lamellar periodicity, verified through atomic force microscopy (AFM) and grazing incidence small-angle X-ray scattering (GISAXS), which increases dramatically from the bulk value (30.6 nm) and continues to increase as the film thickness decreases. The largest observed L0 was 65.5 nm, and this closely approaches the estimated upper limit of 67 nm corresponding to a fully extended backbone in a bilayer arrangement. Films coated out of propylene glycol methyl ether acetate (PGMEA) resulted in a mixture of perpendicular lamellae and a smaller, likely cylindrical morphology. The lamellar portion of the film shows the same thickness dependence as the lamellae observed in the THF coated films. The scaling of the lamellar L0 with respect to film thickness follows predictions for confined semiflexible polymers with weak excluded volume interactions and can be related to models for confinement of DNA. Spin coated films shows the same reduction in periodicity, although at very different film thicknesses. This result suggests that the material has shallow free-energy barriers to transitioning between different L0 and morphologies, a property that could be taken advantage of for patterning diverse structures with a single material." @default.
• W3110147287 created "2020-12-07" @default.
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• W3110147287 date "2020-11-23" @default.
• W3110147287 modified "2023-10-12" @default.
• W3110147287 title "Confinement and Processing Can Alter the Morphology and Periodicity of Bottlebrush Block Copolymers in Thin Films" @default.
• W3110147287 cites W1510322961 @default.
• W3110147287 cites W1800156099 @default.
• W3110147287 cites W1967698204 @default.
• W3110147287 cites W1968915344 @default.
• W3110147287 cites W1973013237 @default.
• W3110147287 cites W1973905275 @default.
• W3110147287 cites W1974374350 @default.
• W3110147287 cites W1979078855 @default.
• W3110147287 cites W1982271883 @default.
• W3110147287 cites W1989504779 @default.
• W3110147287 cites W1990137737 @default.
• W3110147287 cites W1992699718 @default.
• W3110147287 cites W1995560608 @default.
• W3110147287 cites W2001299122 @default.
• W3110147287 cites W2005599681 @default.
• W3110147287 cites W2005799666 @default.
• W3110147287 cites W2006049330 @default.
• W3110147287 cites W2016722302 @default.
• W3110147287 cites W2016843974 @default.
• W3110147287 cites W2019256737 @default.
• W3110147287 cites W2022815376 @default.
• W3110147287 cites W2029707199 @default.
• W3110147287 cites W2031167698 @default.
• W3110147287 cites W2034501059 @default.
• W3110147287 cites W2038948035 @default.
• W3110147287 cites W2039789272 @default.
• W3110147287 cites W2040319930 @default.
• W3110147287 cites W2044219602 @default.
• W3110147287 cites W2055144274 @default.
• W3110147287 cites W2057212082 @default.
• W3110147287 cites W2058185657 @default.
• W3110147287 cites W2058827055 @default.
• W3110147287 cites W2066350682 @default.
• W3110147287 cites W2068814171 @default.
• W3110147287 cites W2071049393 @default.
• W3110147287 cites W2072043794 @default.
• W3110147287 cites W2080218250 @default.
• W3110147287 cites W2087055966 @default.
• W3110147287 cites W2089693947 @default.
• W3110147287 cites W2090446559 @default.
• W3110147287 cites W2124463114 @default.
• W3110147287 cites W2151418211 @default.
• W3110147287 cites W2172949807 @default.
• W3110147287 cites W2290203704 @default.
• W3110147287 cites W2310993694 @default.
• W3110147287 cites W2314542120 @default.
• W3110147287 cites W2324839749 @default.
• W3110147287 cites W2326446927 @default.
• W3110147287 cites W2329795503 @default.
• W3110147287 cites W2507562132 @default.
• W3110147287 cites W2508120663 @default.
• W3110147287 cites W2510876866 @default.
• W3110147287 cites W2512535536 @default.
• W3110147287 cites W2518375234 @default.
• W3110147287 cites W2521788163 @default.
• W3110147287 cites W2543265758 @default.
• W3110147287 cites W2588780497 @default.
• W3110147287 cites W2590644803 @default.
• W3110147287 cites W2607125907 @default.
• W3110147287 cites W2609299764 @default.
• W3110147287 cites W2623930691 @default.
• W3110147287 cites W2760669964 @default.
• W3110147287 cites W2765731926 @default.
• W3110147287 cites W2766731298 @default.
• W3110147287 cites W2783703525 @default.
• W3110147287 cites W2792166503 @default.
• W3110147287 cites W2794989242 @default.
• W3110147287 cites W2889954002 @default.
• W3110147287 cites W2891556428 @default.
• W3110147287 cites W2911640057 @default.
• W3110147287 cites W2924779930 @default.
• W3110147287 cites W2936818046 @default.
• W3110147287 cites W2969698910 @default.
• W3110147287 cites W2979944480 @default.
• W3110147287 cites W3006060852 @default.
• W3110147287 cites W3007177870 @default.
• W3110147287 cites W4233417203 @default.
• W3110147287 cites W4235024652 @default.
• W3110147287 cites W4254556493 @default.
• W3110147287 cites W909557875 @default.
• W3110147287 doi "https://doi.org/10.1021/acsnano.0c07777" @default.
• W3110147287 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33225683" @default.
• W3110147287 hasPublicationYear "2020" @default.
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