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Carbohydrate-attached Fullerene Derivative for Selective Localization in Ordered Carbohydrate-block-Poly(3-hexylthiophene) Nanodomains

Abstract : A carbohydrate-based fullerene derivative (AcMal7-C61) is designed, synthesized and applied to a lamellar-forming high-c block copolymer system, poly(3-hexylthiophene)-blockperacetylated maltoheptaose (P3HT-b-AcMal7), to actualize an ordered donor/acceptor (D/A) network. A well-defined D/A lamellar structure of the P3HT-b-AcMal7:AcMal7-C61 blend with sub-10 nm domain features is achieved upon thermal annealing. The AcMal7-C61 molecules are localized in the phase-separated AcMal7 nanodomains without causing the formation of fullerene crystals while maintaining the lamellar morphology up to 1:0.5 (D:A) blending ratio. The cross-sectional TEM observation and GISAXS measurement reveals that the P3HT-b-AcMal7 tends to spontaneously organize into lamellar structures oriented perpendicular to the film surface at the air/film interface while the domain orientation at the bottom interface depends on the nature of the substrate.
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https://hal.archives-ouvertes.fr/hal-03431862
Contributor : Yu Ogawa Connect in order to contact the contributor
Submitted on : Tuesday, November 16, 2021 - 11:10:56 PM
Last modification on : Friday, April 1, 2022 - 3:47:35 AM
Long-term archiving on: : Thursday, February 17, 2022 - 9:33:11 PM

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Yoko Sakai-Otsuka, Yu Ogawa, Toshifumi Satoh, Wen-Chang Chen, Redouane Borsali. Carbohydrate-attached Fullerene Derivative for Selective Localization in Ordered Carbohydrate-block-Poly(3-hexylthiophene) Nanodomains. Carbohydrate Polymers, Elsevier, 2021, 255, pp.117528. ⟨10.1016/j.carbpol.2020.117528⟩. ⟨hal-03431862⟩

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