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Article

Polymerization Initiated by Graphite Intercalation Compounds Revisited: One-Pot Synthesis of Amphiphilic Pentablock Copolymers †

1
Versogen, Inc., 200 Powder Mill Road, Wilmington, DE 19803, USA
2
Department of Chemistry, State University of New York–ESF, Syracuse, NY 13210, USA
3
The Michael M. Szwarc Polymer Research Institute, State University of New York, Syracuse, NY 13210, USA
*
Author to whom correspondence should be addressed.
This paper is dedicated with best wishes to Professor Iliya Bl. Rashkov on his 80th birthday.
Academic Editor: Ana María Díez-Pascual
Received: 10 March 2022 / Revised: 11 May 2022 / Accepted: 11 May 2022 / Published: 14 May 2022
This study reports the first attempt to employ a potassium–graphite intercalation compound (KC24) as an initiator for the one-pot synthesis of a multi-block copolymer. The results obtained show that KC24 successfully initiated the copolymerization, leading to a copolymer consisting of poly(styrene), poly(methyl methacrylate) and poly(ethylene oxide) blocks. When all three comonomers were introduced simultaneously or in a specific sequence, the resulting copolymers had molecular masses in the range between 170,000 Da and 280,000 Da. Their composition was investigated by size-exclusion chromatography with triple detection (dRI/UV/IR) and 1H-NMR. The analyses indicated that all copolymers were enriched in methyl methacrylate (50–66 mol%) despite the fact that the comonomers were added in equimolar amounts. Due to the layered structure of the initiator, the polymerization took place in the graphite interlayer spaces and lead to extensive delamination, indicating at the potential to produce in situ graphite/copolymer composite materials. View Full-Text
Keywords: graphite intercalation compounds; anionic polymerization; block copolymers graphite intercalation compounds; anionic polymerization; block copolymers
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MDPI and ACS Style

Vladimirov, N.G.; Gitsov, I. Polymerization Initiated by Graphite Intercalation Compounds Revisited: One-Pot Synthesis of Amphiphilic Pentablock Copolymers. Macromol 2022, 2, 184-193. https://0-doi-org.brum.beds.ac.uk/10.3390/macromol2020012

AMA Style

Vladimirov NG, Gitsov I. Polymerization Initiated by Graphite Intercalation Compounds Revisited: One-Pot Synthesis of Amphiphilic Pentablock Copolymers. Macromol. 2022; 2(2):184-193. https://0-doi-org.brum.beds.ac.uk/10.3390/macromol2020012

Chicago/Turabian Style

Vladimirov, Nikolay G., and Ivan Gitsov. 2022. "Polymerization Initiated by Graphite Intercalation Compounds Revisited: One-Pot Synthesis of Amphiphilic Pentablock Copolymers" Macromol 2, no. 2: 184-193. https://0-doi-org.brum.beds.ac.uk/10.3390/macromol2020012

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