Szczegóły publikacji

Opis bibliograficzny

Surface engineering of mixed conjugated/polyelectrolyte brushes – tailoring interface structure and electrical properties / Karol Wolski, Joanna Smenda, Anna Grobelny, Paweł Dąbczyński, Mateusz MARZEC, Adrian Cernescu, Magdalena WYTRWAŁ, Andrzej BERNASIK, Jakub Rysz, Szczepan ZAPOTOCZNY // Journal of Colloid and Interface Science ; ISSN 0021-9797. — 2023 — vol. 634, s. 209-220. — Bibliogr. s. 218-220, Abstr. — Publikacja dostępna online od: 2022-12-11

Autorzy (10)

Wolski KarolSmenda JoannaGrobelny AnnaDąbczyński PawełAGHMarzec Mateusz M.Cernescu AdrianAGHWytrwał-Sarna MagdalenaAGHBernasik AndrzejRysz JakubAGHZapotoczny Szczepan

Słowa kluczowe

conductivitymixed polymer brushespoly(sodium 4-styrenesulfonate)controlled radical polymerizationssurface dynamicsmemristive effectconjugated polymers

Dane bibliometryczne

ID BaDAP145061
Tekst źródłowyURL
Rok publikacji2023
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Czasopismo/seriaJournal of Colloid and Interface Science


Hypothesis Mixed polymer brushes (MPBs) could be synthesized by surface dilution of homopolymer brushes and subsequent grafting of other type of chains in the formed voids. Nanophase separation and dynamics of surface-grafted chains could be tailored by modification of their molecular architecture. Mixed polyelectrolyte and conjugated chains contribute synergistically to tailor properties of the coating. Experiments A new synthetic strategy that allowed spatially controlled grafting of poly(sodium 4-styrenesulfonate) chains (PSSNa) in close neighborhood of poly(3-methylthienyl methacrylate) (PMTM) brushes (precursors of the conjugated chains) using surface-initiated polymerizations was developed. The final mixed conjugated/polyelectrolyte brushes were prepared by template polymerization of pendant thiophene groups in PMTM chains. Surface dynamics and nanophase separation of MPBs were studied by nanoscale resolution IR imaging, SIMS profiling and AFM mapping in selective solvents. Findings Unconjugated MPBs were shown to undergo vertical, and horizontal nanophase separation, while the size and shape of the nanodomains were dependent on molar ratio of the mixed chains and their relative lengths. Generation of the conjugated chains led to diminishing of nanophase separation thanks to stronger mutual interactions of conjugated PMTM and PSSNa (macromolecular mixing). The obtained systems demonstrated tunable interfacial structure and resistance switching phenomenon desired in construction of smart surfaces or memristive devices.

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