《Synthesis of 1,2,3-triazole group-containing isomannide-based aromatic new polyurethanes》 was written by Bayrak, Fatih; Ay, Emriye; Oral, Ayhan; Karayildirim, Tamer; Ay, Kadir. Name: 1H-1,2,3-TriazoleThis research focused ontriazole group isomannide aromatic polyurethane surface property. The article conveys some information:
Ten new carbohydrate-based aromatic polyurethanes have been synthesized using isomannide and/or a new 1,2,3-triazole isomannide derivative, IV, as the diol source in the polymerization reactions. As the isocyanate source, 1,4-phenylene diisocyanate or 2,4-toluene diisocyanate was used. To synthesize compound IV, isomannide was tosylated, the tosyl groups were substituted with azide, the triazole ring was formed by reaction with 2,4-pentane dione and finally carbonyl groups were converted into oximes. The synthesis of copolymers and terpolymers was performed using different proportions of diisocyanate and diol sources in DMF. The structural elucidation of the synthesized compounds and polymers was performed using spectroscopic techniques such as FTIR, 1D- and 2D-NMR and HRMS. The thermal behavior and mol. weight distribution of polymers were analyzed by thermal gravimetric anal. and gel permeation chromatog., resp. The surface properties of the polymers were analyzed using SEM. A comparative study on thermal behavior of the synthesized polymers showed that polymers containing a higher amount of compound IV displayed better thermal stability. The average mol. weights of copolymers were observed to vary from 7,900 (PUR-3) to 21,000 (PUR-4) whereas for terpolymers, values of 19,000 (PUR-5), 5,100 (PUR-6), 22,000 (PUR-8) and 28,000 (PUR-9) were found. The diisocyanate source was found to have more effect on the surface properties of polymers than the diol source: when 2,4-toluene diisocyanate was used in polymer synthesis, the resultant polymers had a spongy morphol. with cavities while a polymer matrix containing spheres and platelets was obtained when 1,4-toluene diisocyanate was used. The results came from multiple reactions, including the reaction of 1H-1,2,3-Triazole(cas: 288-36-8Name: 1H-1,2,3-Triazole)
1H-1,2,3-Triazole(cas: 288-36-8) belongs to triazoles. Triazoles are an important group of nitrogen-containing five-membered heterocyclic scaffolds. Triazoles are core structures of several drugs and pharmaceutical agents. Triazole derivatives possess antimicrobial, antiparasitic, antidiabetic, analgesic, and anti-inflammatory properties Name: 1H-1,2,3-Triazole
Referemce:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics