Fully renewable photocrosslinkable polycarbonates from cellulose-derived monomers

Abstract

Cellulose-derived photocrosslinkable polycarbonates (PCs) with renewable citronellol pendant chains were synthesised through the polycondensation of Triol-citro, a recently developed levoglucosenone-based triol monomer, and dimethoxycarbonyl isosorbide. The polymer structures were unveiled...

Levoglucosenone to 3D-printed green materials: synthesizing sustainable and tunable monomers for eco-friendly photo-curing

“…8 Various oxa-Michael additions to the β-position of the α,β-unsaturated ketone have been reported with water, 42 benzyl alcohol, 43 ethanol 44 or citronellol. 13,45 However, in all cases, a large excess of alcohol was necessary to not only achieve a maximum conversion of LGO into the desired product, but also limit its dimerization into LGO-Cyrene. With the aim of introducing a terminal alkene function, allyl alcohol was added to LGO (Scheme 1).…”

“…These new LGO polymer derivatives include polyacrylates, 9 polycyclic olefins, 10 polyesters, 11,12 and polycarbonates. 13 However, until now, the controlled formation of polymer networks derived from LGO-based monomers has not been reported. 14 Furthermore, combining biobased polymers with eco-friendly polymerization technology represents a step further to limit production costs, energy consumption and time.…”

Photopolymerization using bio-sourced photoinitiators

“…Consequently, the utilization of bio-based monomers in photopolymerization has become increasingly favorable. Currently, cellulose, 175,176 lipids, 177 fatty acids, 178 starch, 179 polysaccharides 180,181 have found widespread application as bio-based monomers, while other compounds like eugenol, 182 lanolin alcohol, 183 and lignin 184 are under consideration. Fortunately, these components are renewable and abundantly available worldwide.…”

Synthesis of Citronellol-Derived Antibacterial Polymers and Effect of Thioether, Sulfoxide, Sulfone, and Ether Functional Groups on Their Bactericidal Activity

“…In this study, citronellol-derived methacrylate polymers with different interconnecting functional groups were synthesized to prepare bio-based bactericidal polymers and investigate the relationship between their side chain structure and bactericidal properties. Since citronellol, a monoterpenoid widely used in perfumes and insect repellents, , displays bactericidal properties by interacting with bacterial surface constituents to form a monolayer that alters the cell-surface properties (electrostatic potential and hydrophobicity), it was incorporated to impart bactericidal properties to polymers. , While various citronellol-containing polymers have been prepared for applications in fully bio-based degradable polymers , and photocrosslinkable polymers, , to the best of our knowledge, this is the first study to elucidate the bactericidal properties of citronellol-derived polymers with different interconnecting functional groups. Furthermore, although a variety of monoterpenes such as geraniol, eugenol, and borneol have been exploited to prepare antibacterial polymers, the effect of side chain interconnecting functional groups between the polymer backbone and the monoterpenes on the bactericidal properties has not been systematically investigated possibly because the preparation of a series of antibacterial polymers encompassing diverse interconnecting groups is laborious. − …”