2020
DOI: 10.1021/acs.langmuir.0c02261
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Strategy for Enhancing Ultrahigh-Molecular-Weight Block Copolymer Chain Mobility to Access Large Period Sizes (>100 nm)

Abstract: Assembling ultra-high molecular weight (UHMW) block copolymers (BCPs) in rapid timescales is perceived as a grand challenge in polymer science due to slow kinetics. Through surface engineering and identifying a non-volatile solvent (propylene glycol methyl ether acetate, PGMEA) we showcase the impressive ability of a series of lamellar poly(styrene)-block-poly(2-vinylpyridine) (PS-b-P2VP) BCPs to self-assemble directly after spin-coating. In particular, we show the formation of large period (≈ 111 nm) lamellar… Show more

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Cited by 16 publications
(16 citation statements)
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“…Moreover, this is a multifaceted concern requiring attention to BCP synthesis, film development and postinfiltration of metals/dielectrics. However, in the past 5 years, several encouraging reports have detailed BCP processes that move the field forward and ever closer to meeting fab grade compatibility, e.g., solvent vapor annealing, [294][295][296] selective material infiltration, [297,298] and defect characterization. [299,300]…”
Section: Bcp and Metamaterials Future Directionsmentioning
confidence: 99%
“…Moreover, this is a multifaceted concern requiring attention to BCP synthesis, film development and postinfiltration of metals/dielectrics. However, in the past 5 years, several encouraging reports have detailed BCP processes that move the field forward and ever closer to meeting fab grade compatibility, e.g., solvent vapor annealing, [294][295][296] selective material infiltration, [297,298] and defect characterization. [299,300]…”
Section: Bcp and Metamaterials Future Directionsmentioning
confidence: 99%
“…Deposition of inorganic materials into polymer brush matrix or self-assembled nanodomains of BCPs can also be achieved using liquid deposition processes such as spin coating [ 11 , 18 , 130 , 131 ]. Other methods of metal inclusion are ALD and low temperature vapour phase deposition and sequential infiltration (SIS) [ 12 , 62 , 132 ].…”
Section: Bottom-up Versus Top-down Lithographymentioning
confidence: 99%
“…Microphase separation produces self-assembled architectures [15]. Structural modulation by selection of molecular composition and weight [12,125]. Polymer brush's metal binning sites facilitate deposition of inorganic films [18].…”
Section: Principle Of Operationmentioning
confidence: 99%
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“…Syndiotactic poly­(polar styrene)­s, which have not only excellent properties of syndiotactic polystyrene ( s PSt) such as fast crystallization rate, chemical heat and solvent resistance, and good dielectric performance but also special properties of poly­(polar olefin)­s such as superior hydrophilicity, adhesion, printability, and compatibility with polyolefins, are much more promising semicrystalline engineering plastics having greater potential commercial application in high-durability parts, high-end medical materials, electronic and electrical appliances, auto parts, special fibers, packaging materials, coating industry, release agents, and lubricants. Moreover, some alkoxyl, silyloxy, halogen, or amino-substituted syndiotactic poly­(polar styrene)­s might undergo postpolymerization functionalization to afford hydroxyl-substituted syndiotactic poly­(polar styrene)­s or other macromolecules with more special properties and applications. Furthermore, like proteins and nucleic acids, ultrahigh-molecular-weight syndiotactic poly­(polar styrene)­s (UHMW, number average molecular weight ( M n ≥ 10 6 )) will have more excellent chemical, biological, and mechanical properties such as high impact strength and distortion strength with wide and potential applications. However, syndiotactic poly­(polar styrene)­s have not been prepared by traditional polymerization such as radical, cationic, or anionic polymerization for a long time. Then, half-sandwich titanium trialkyl or trichloride catalysts could promote the coordination polymerization of protected polar styrene (Scheme a).…”
Section: Introductionmentioning
confidence: 99%