Sustainable Myrcene-Based Elastomers via a Convenient Anionic Polymerization
| Autor: | Carmine Capacchione, David Hermann Lamparelli, Malte Winnacker, Magdalena Maria Kleybolte |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Polymers and Plastics
Chemistry Anionic polymerization Myrcene Sodium hydride sodium hydride General Chemistry Elastomer Article Styrene anionic polymerization lcsh:QD241-441 chemistry.chemical_compound Anionic addition polymerization Monomer lcsh:Organic chemistry Polymer chemistry Copolymer Glass transition Isoprene myrcene |
| Zdroj: | Polymers, Vol 13, Iss 838, p 838 (2021) Polymers Volume 13 Issue 5 |
| ISSN: | 2073-4360 |
| Popis: | Soluble heterocomplexes consisting of sodium hydride in combination with trialkylaluminum derivatives have been used as anionic initiating systems at 100 °C in toluene for convenient homo-, co- and ter-polymerization of myrcene with styrene and isoprene. In this way it has been possible to obtain elastomeric materials in a wide range of compositions with interesting thermal profiles and different polymeric architectures by simply modulating the alimentation feed and the (monomers)/(initiator systems) ratio. Especially, a complete study of the myrcene-styrene copolymers (PMS) was carried out, highlighting their tapered microstructures with high molecular weights (up to 159.8 KDa) and a single glass transition temperature. For PMS copolymer reactivity ratios, rmyr = 0.12 ± 0.003 and rsty = 3.18 ± 0.65 and rmyr = 0.10 ± 0.004 and rsty = 3.32 ± 0.68 were determined according to the Kelen–Tudos (KT) and extended Kelen–Tudos (exKT) methods, respectively. Finally, this study showed an easy accessible approach for the production of various elastomers by anionic copolymerization of renewable terpenes, such as myrcene, with commodities. |
| Databáze: | OpenAIRE |
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