Cor E. Koning
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View article: Limonene-derived polycarbonates as biobased UV-curable (powder) coating resins
Limonene-derived polycarbonates as biobased UV-curable (powder) coating resins Open
The evaluation of poly(limonene carbonate)s (PLCs), derived from orange oils and carbon dioxide, as UV-curable (powder) coating binders is described. PLCs with moderate molecular weight were prepared by copolymerization of limonene oxide w…
View article: Isocyanate‐Free Approach to Water‐Borne Polyurea Dispersions and Coatings
Isocyanate‐Free Approach to Water‐Borne Polyurea Dispersions and Coatings Open
Here, an isocyanate‐free approach to produce polyureas from diamines and dicarbamates as monomers is reported. A side reaction limiting the molecular weight during the diamine/ dicarbamate polymerization, that is, N‐alkylation of amine end…
View article: Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced <i>T</i><sub>g</sub>
Isohexide and Sorbitol-Derived, Enzymatically Synthesized Renewable Polyesters with Enhanced <i>T</i><sub>g</sub> Open
Sugar-based polyesters derived from sorbitol and isohexides were obtained via solvent-free enzymatic catalysis. Pendant hydroxyl groups, coming from the sorbitol units, were present along the polyester backbone, whereas the two isohexides,…
View article: Catalysts for Isocyanate-Free Polyurea Synthesis: Mechanism and Application
Catalysts for Isocyanate-Free Polyurea Synthesis: Mechanism and Application Open
Four catalysts, viz. 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD), potassium bis(trimethylsilyl)amide (KHMDS), potassium methoxide (KOMe), and potassium tert-butoxide (KO-t-Bu), are screened for a low-toxicity route toward (poly)urethane/urea…
View article: Chemoselective Alternating Copolymerization of Limonene Dioxide and Carbon Dioxide: A New Highly Functional Aliphatic Epoxy Polycarbonate
Chemoselective Alternating Copolymerization of Limonene Dioxide and Carbon Dioxide: A New Highly Functional Aliphatic Epoxy Polycarbonate Open
The alternating copolymerization of biorenewable limonene dioxide with carbon dioxide (CO 2 ) catalyzed by a zinc β‐diiminate complex is reported. The chemoselective reaction results in linear amorphous polycarbonates that carry pendent me…
View article: A facile and green route to terpene derived acrylate and methacrylate monomers and simple free radical polymerisation to yield new renewable polymers and coatings
A facile and green route to terpene derived acrylate and methacrylate monomers and simple free radical polymerisation to yield new renewable polymers and coatings Open
We present new acrylic monomers, polymers and coatings derived directly from abundant naturally available terpenes via facile, green and catalytic approaches.