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http://doi.org/10.25358/openscience-9503| Authors: | Meier-Merziger, Moritz Imschweiler, Jan Hartmann, Frank Niebuur, Bart-Jan Kraus, Tobias Gallei, Markus Frey, Holger |
| Title: | Bifunctional carbanionic synthesis of fully bio-based triblock structures derived from β-farnesene and LL-dilactide : thermoplastic elastomers |
| Online publication date: | 29-Sep-2023 |
| Year of first publication: | 2023 |
| Language: | english |
| Abstract: | Current environmental challenges and the shrinking fossil-fuel feedstock are important criteria for the next generation of polymer materials. In this context, we present a fully bio-based material, which shows promise as thermoplastic elastomer (TPE). Due to the use of β-farnesene and L-lactide as monomers, bio-based feedstocks, namely sugar cane and corn can be used. A bifunctional initiator for the carbanionic polymerization was employed, to permit an efficient synthesis of ABA-type block structures. In addition, the “green” solvent MTBE (methyl tert-butyl ether) was used. This afforded low dispersity (Đ = 1.07 to 1.10) and telechelic polyfarnesene macroinitiators. These were employed for lactide polymerization to obtain H-shaped triblock copolymers. TEM and SAXS revealed clearly phase-separated morphologies and tensile tests revealed elastic mechanical properties. The materials featured two glass transition temperatures, at - 66 °C and 51 °C as well as gyroid or cylindrical morphologies, resulting in soft elastic materials at room temperature. |
| DDC: | 540 Chemie 540 Chemistry and allied sciences |
| Institution: | Johannes Gutenberg-Universität Mainz |
| Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
| Place: | Mainz |
| ROR: | https://ror.org/023b0x485 |
| DOI: | http://doi.org/10.25358/openscience-9503 |
| Version: | Published version |
| Publication type: | Zeitschriftenaufsatz |
| License: | CC BY-NC |
| Information on rights of use: | https://creativecommons.org/licenses/by-nc/4.0/ |
| Journal: | Angewandte Chemie Version of Record (VoR) |
| Pages or article number: | e202310519 |
| Publisher: | Wiley |
| Publisher place: | Weinheim |
| Issue date: | 2023 |
| ISSN: | 1521-3773 |
| Publisher DOI: | 10.1002/anie.202310519 |
| Relations: | is version of 10.25358/openscience-10181 |
| Appears in collections: | DFG-491381577-H |
Files in This Item:
| File | Description | Size | Format | ||
|---|---|---|---|---|---|
 | bifunctional_carbanionic_synt-20230929092746017.pdf | 4.73 MB | Adobe PDF | View/Open |