Sustainable Myrcene-Based Elastomers via a Convenient Anionic Polymerization

Polymers

卷:13

Carmine Capacchione¹  DavidHermann Lamparelli¹  MagdalenaMaria Kleybolte²  Malte Winnacker² 

[1] Department of Chemistry and Biology “Adolfo Zambelli”, University of Salerno, Giovanni Paolo II Str., 84084 Fisciano, Italy;

[2] WACKER-Chair of Macromolecular Chemistry, Technische Universität München, Lichtenbergstraße 4 Str., 85747 Garching bei München, Germany;

关键词: myrcene;    sodium hydride;    anionic polymerization;   

DOI  :  10.3390/polym13050838

来源: DOAJ

【 摘 要 】

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, r_myr = 0.12 ± 0.003 and r_sty = 3.18 ± 0.65 and r_myr = 0.10 ± 0.004 and r_sty = 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.

【 授权许可】

Unknown