Sangam: A Confluence of Knowledge Streams

Resolving Triblock Terpolymer Morphologies by Vapor-Phase Infiltration

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dc.creator Lee, Sangho
dc.creator Subramanian, Ashwanth
dc.creator Tiwale, Nikhil
dc.creator Kisslinger, Kim
dc.creator Mumtaz, Muhammad
dc.creator Shi, Ling-Ying
dc.creator Aissou, Karim
dc.creator Nam, Chang-Yong
dc.creator Ross, Caroline A
dc.date 2022-05-18T16:50:12Z
dc.date 2022-05-18T16:50:12Z
dc.date 2020
dc.date 2022-05-18T16:46:17Z
dc.date.accessioned 2023-02-17T20:29:52Z
dc.date.available 2023-02-17T20:29:52Z
dc.identifier https://hdl.handle.net/1721.1/142589
dc.identifier Lee, Sangho, Subramanian, Ashwanth, Tiwale, Nikhil, Kisslinger, Kim, Mumtaz, Muhammad et al. 2020. "Resolving Triblock Terpolymer Morphologies by Vapor-Phase Infiltration." Chemistry of Materials, 32 (12).
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/242598
dc.description © 2020 American Chemical Society. The spontaneous formation of well-organized three-dimensional (3D) nanostructures from self-assembled block copolymers (BCPs) holds promise for nanofabrication and lithography. The addition of a third block to BCPs provides access to a plethora of 3D geometries, but it remains difficult to resolve the geometry of such "three-color"structures when there is low contrast between the polymeric components at length scales of a few nanometers. Here, we apply vapor-phase infiltration synthesis to a silicon-containing triblock terpolymer, poly(1,1-dimethyl silacyclobutane-b-styrene-b-lactide) (PDMSB-b-PS-b-PLA or DSL) to distinguish the 3D microdomain morphologies of the two organic blocks, PLA and PS. Selective infiltration of ZnO within the PLA microdomains reveals morphologies consisting of three-color lamellae or lamellae combined with vertically aligned core-shell cylinders, depending on the volume fractions of each block. The infiltration produces ZnO nanoparticles throughout the 260 nm thickness of the DSL film, generating 3D nanocomposites containing ZnO and SiOx. These results provide a strategy for synthesizing multicomponent 3D nanostructures as well as visualizing the phase behavior of multiblock copolymers.
dc.format application/pdf
dc.language en
dc.publisher American Chemical Society (ACS)
dc.relation 10.1021/ACS.CHEMMATER.0C01647
dc.relation Chemistry of Materials
dc.rights Attribution-NonCommercial-ShareAlike 4.0 International
dc.rights https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.source Other Repository
dc.title Resolving Triblock Terpolymer Morphologies by Vapor-Phase Infiltration
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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