Reversible addition–fragmentation chain transfer polymerization of myrcene derivatives: an efficient access to fully bio-sourced functional elastomers with recyclable, shape memory and self-healing properties

Abstract

Rubber industry has been faced with critical challenges including unsustainable fossil-based monomer source, lack of functionality and growing environmental concerns of waste vulcanizates. Development of bio-sourced functional polydienes deems a...

Toward Bio‐Sourced Elastomers with Reactive/Polar Groups. Myrcene – Glycidyl Methacrylate Copolymerization: Reactivity Ratios, Properties, and Preliminary RAFT Emulsion Polymerization

“…On the other hand, when a RAFT agent is present, the MW is much lower due to the controlling effect of the agent; this is consistent with the results of other works very recently published. [ 15,38 ]…”

“…On the other hand, when a RAFT agent is present, the MW is much lower due to the controlling effect of the agent; this is consistent with the results of other works very recently published. [15,38] 3.6. Thermal Analysis DSC analyses were carried out (see Figure 8) to better understand the behavior of some of the synthesized copolymers.…”

Anionic Polymerization of Terpene Monomers: New Options for Bio-Based Thermoplastic Elastomers

“…Terpenoids offer a possibility to overcome the lack of functional 1,3-diene monomers for the living anionic polymerization, caused by synthetic difficulties due to the high reactivity of the 1,3-diene entity. By protection of the hydroxyl groups of terpenoids like β-myrcenol with appropriate protective groups for the living anionic polymerization (e.g., silyl groups), a novel type of monomer is obtained. , Furthermore, in recent work myrcenol was copolymerized with β-myrcene or isoprene by using reversible addition–fragmentation chain transfer (RAFT) polymerization or neodymium- or cobalt-catalyst based polymerization. − …”

“…Relying on coordination polymerization, there are several recent works by Gong et al in which a hydroxylmyrcene derivative (2-methyl-6-methyleneoct-7-en-2-ol) was copolymerized with β-myrcene or isoprene, applying neodymium or cobalt catalyst systems for polymerization. , Furthermore, Gong et al polymerized functionalized myrcene derivatives by RAFT polymerization, albeit with rather low monomer conversions of 40–80%. In comparison, complete monomer conversion is generally obtained by living anionic polymerization techniques . In a recent work, we were able to introduce the first reported hydroxyl-group-containing 1,3-diene monomer for the living anionic polymerization based on β-myrcenol (2-methyl-6-methylidene­octa-2,7-dienol), which was prepared by allylic oxidation of β-myrcene .…”

Bioelastomers: current state of development

“…The designed elastomer could be a sustainable option for smart and promising materials in applications of stimuli-responsive and self-healing materials, where other thermoresponsive polymers can be explored for use within the elastomeric network, such as PNIPAM, which has a lower critical solution temperature (LCST) that can be customized. 167 Recently, Luo et al 168 worked on the use of functional monomers bearing furan/hydroxyl (My–Fu–OH) and pyridine/hydroxyl (My–Py–OH) groups to copolymerize with myrcene via reversible addition–fragmentation chain transfer (RAFT) polymerization to obtain bio-sourced functional elastomers. The poly(My- co -My–Fu–OH) and poly(My- co -My–Py–OH) were cured with bismaleimide (BMI) and zinc acetate (Zn), respectively.…”