WebMar 1, 2016 · The obtained bis (cyclic carbonate) was used as a monomer for the synthesis of non-isocynate poly (hydroxyurethane)s via a polyaddition reaction with various diamines: aliphatic ones, oligoetherdiamines and, for comparison, aromatic diamines ( Scheme 2 ). The polyaddition reactions were carried out by a solvent-free and catalyst … WebMay 14, 2024 · Cyclic carbonates reacted with diamines or polyamines have been proposed as a greener and safer method to prepare free isocyanate polyurethane coatings.
ROP of Cyclic Carbonates and ROP of Macrocycles - ResearchGate
WebOct 30, 2015 · Cyclic carbonate oligomeric intermediates for the synthesis of non-isocyanate polyurethanes, can be also obtained by reaction of diglycidyl ethers (e.g. diglycidyl ether of bisphenol A) with carbon dioxide (Fig. 6).It is also possible to obtain cyclic carbonate intermediates by cycloaddition of carbon dioxide into, e.g. epoxidized … WebMay 1, 2011 · Bis (cyclic Carbonate)s 1 were prepared by the reaction of bis (epoxide)s and atmospheric pressure of CO2 in the presence of sodium iodide and triphenylphosphine as catalysts at 100°C in high yield.… 187 Modification of RAFT-polymers via thiol-ene reactions: A general route to functional polymers and new architectures curved definition in photography
Catalysts Free Full-Text En Route to CO2-Based (a)Cyclic …
WebNov 3, 2016 · Biobased Linear and Crystallizable Polyhydroxy(amide-urethane)s from Diglycerol Bis(cyclic carbonate) and the Polyamides of Dimer Fatty Acids. ACS Applied Polymer Materials 2024 , 4 (3) , 2116 … WebApr 3, 2024 · This work demonstrates the synthesis of bio-based polyurethane from soybean oil and glycerol derived highly branched structure via non-isocyanate route. The soybean oil based cyclic carbonates were synthesized by coupling of CO2 with epoxidized soybean oil. In the second step, glycerol derived highly branched cyclic carbonate was synthesized … WebOct 22, 2024 · Five-membered bis (cyclic carbonate)s were synthesized under the reaction of ED250_P or ED250_BIO with CO 2. The reaction was conducted in 0.5 L three-necked flask equipped with a temperature controller, a magnetic stirrer, and an inlet of CO 2 [ 18 ]. chase cybersecurity