Pino, Guillaume;
Cummins, Cian;
Mantione, Daniele;
Demazy, Nils;
Alvarez-Fernandez, Alberto;
Guldin, Stefan;
Fleury, Guillaume;
... Brochon, Cyril; + view all
(2022)
Design and Morphological Investigation of High-χ Catechol-Containing Styrenic Block Copolymers.
Macromolecules
, 55
(15)
pp. 6341-6350.
10.1021/acs.macromol.2c00476.
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Abstract
We report the synthesis of multifunctional block copolymers (BCPs) showing a high Flory–Huggins interaction parameter (χ), which enable sub-10 nm line-space structures for a low degree of polymerization (N). The high χ BCPs are based on a poly(3,4-dihydroxystyrene)–block-poly(4-trimethylsilylstyrene) (PDHS-b-PTMSS) architecture. The controlled synthesis of the PDHS-b-PTMSS precursors was performed using user-friendly sequential nitroxide mediated polymerization (NMP) of poly(3,4-diacetoxystyrene) and block-poly(4-trimethylsilylstyrene) (PDAS-b-PTMSS). Thereafter, acid-catalyzed deprotection of the acetoxy moieties produced a library of PDHS-b-PTMSS BCPs with molecular weights ranging from 2.1 to 44.5 kg/mol. Bulk lamellar and cylindrical structures with periodicities as small as 8 nm were revealed by small-angle X-ray scattering. Moreover, PDHS-b-PTMSS thin films were assembled using solvent vapor annealing to define 10 nm line-space patterns in favorable conditions, i.e., at 20 °C for 20 min. In summary, our work brings further knowledge to the BCP toolbox for next-generation nanomanufacturing needs.
| Type: | Article |
|---|---|
| Title: | Design and Morphological Investigation of High-χ Catechol-Containing Styrenic Block Copolymers |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.macromol.2c00476 |
| Publisher version: | https://doi.org/10.1021/acs.macromol.2c00476 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Chemical structure, Plastics, Polymers, Solvents, X-ray scattering |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10154840 |
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