Issue 72, 2020, Issue in Progress

Introducing random bio-terpene segments to high cis-polybutadiene: making elastomeric materials more sustainable

Abstract

In this work, we explore the statistical copolymerization of 1,3-butadiene with the terpenic monomers myrcene and farnesene, carried out via coordination polymerization using a neodymium-based ternary catalytic system. The resultant copolymers, poly(butadiene-co-myrcene) and poly(butadiene-co-farnesene), were synthesized at different monomer ratios, elucidating the influence of the bio-based monomer content over the kinetic variables, molecular and thermal properties, and the reactivity constants (Fineman–Ross and Kelen–Tüdös methods) of the resultant copolymers. The results indicate that through the herein employed conditions, it is possible to obtain “more sustainable” high-cis (≈95%) polybutadiene elastomers with random and tunable content of bio-based monomer. Moreover, the polymers exhibit fairly high molecular weights and a rather low dispersity index. Upon copolymerization, the Tg of high-cis PB can be shifted from −106 to −75 °C (farnesene) or −107 to −64 °C (myrcene), without altering the microstructure control. This work contributes to the development of more environmentally friendly elastomers, to form “green” rubber materials.

Graphical abstract: Introducing random bio-terpene segments to high cis-polybutadiene: making elastomeric materials more sustainable

Supplementary files

Article information

Article type
Paper
Submitted
31 Oct 2020
Accepted
02 Dec 2020
First published
15 Dec 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 44096-44102

Introducing random bio-terpene segments to high cis-polybutadiene: making elastomeric materials more sustainable

J. L. González-Zapata, F. J. Enríquez-Medrano, H. R. López González, J. Revilla-Vázquez, R. M. Carrizales, D. Georgouvelas, L. Valencia and R. E. Díaz de León Gómez, RSC Adv., 2020, 10, 44096 DOI: 10.1039/D0RA09280K

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