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Rapid access to discrete and monodisperse block co-oligomers from sugar and terpenoid toward ultrasmall periodic nanostructures
Abstract : Discrete block co-oligomers (BCOs) are gaining considerable attention due to their potential to form highly ordered ultrasmall nanostructures suitable for lithographic templates. However, laborious synthetic routes present a major hurdle to the practical application. Herein, we report a readily available discrete BCO system that is capable of forming various selfassembled nanostructures with ultrasmall periodicity. Click coupling of propargylfunctionalized sugars (containing 1-7 glucose units) and azido-functionalized terpenoids (containing 3, 4, and 9 isoprene units) afforded the discrete and monodisperse BCOs with a desired total degree of polymerization and block ratio. These BCOs microphase separated into lamellar, gyroid, and cylindrical morphologies with the domain spacing (d) of 4.2-7.5 nm. Considering easy synthesis and rich phase behavior, presented BCO systems could be highly promising for application to diverse ~4-nm nanofabrications.
https://hal-cnrs.archives-ouvertes.fr/hal-03086355
Contributor : Redouane Borsali Connect in order to contact the contributor
Submitted on : Friday, November 26, 2021 - 6:41:13 PM
Last modification on : Thursday, December 2, 2021 - 2:14:02 PM
Contributor : Redouane Borsali Connect in order to contact the contributor
Submitted on : Friday, November 26, 2021 - 6:41:13 PM
Last modification on : Thursday, December 2, 2021 - 2:14:02 PM
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s42004-020-00385-y-2.pdf
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