Thermoresponsive functional polymers based on 2,6-diaminopyridine motif with tunable UCST behaviour in water/alcohol mixtures was written by Asadujjaman, Asad;Ahmadi, Vahid;Yalcin, Meral;ten Brummelhuis, Niels;Bertin, Annabelle. And the article was included in Polymer Chemistry in 2017.Application of 1075-62-3 This article mentions the following:
2,6-Diaminopyridine based functional polymers poly(N-(6-aminopyridin-2-yl)acrylamide) (PNAPAAm) and poly(N-(6-acetamidopyridin-2-yl)acrylamide) (PNAcAPAAm) were synthesized via free radical polymerization and in addition PNAcAPAAm was synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization for comparison. The obtained polymers displayed upper critical solution temperature (UCST)-type reversible thermoresponsiveness in water/alc. mixtures The UCST phase transition behavior of the obtained functional polymers was studied using temperature dependent turbidimetry, dynamic light scattering and 1H-NMR measurements. The phase transition temperature of the polymers was tunable by varying either the concentration of the polymer solution, the nature of the alc. or the composition of the solvent mixture The cloud point temperature of PNAcAPAAm was found to decrease with increasing alc. content (MeOH, EtOH and iPrOH) in water/alc. mixtures Past a critical amount of EtOH or iso-PrOH in water, the cloud point temperature of PNAcAPAAm increased upon further addition of EtOH or iso-PrOH. Such functional polymers with tunable UCST behavior can be applicable in drug delivery, sensing, personal care and microfluidic applications. In the experiment, the researchers used many compounds, for example, N-(6-Aminopyridin-2-yl)acetamide (cas: 1075-62-3Application of 1075-62-3).
N-(6-Aminopyridin-2-yl)acetamide (cas: 1075-62-3) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Reduced pyridines, namely tetrahydropyridines, dihydropyridines and piperidines, are found in numerous natural and synthetic compounds. The synthesis and reactivity of these compounds have often been driven by the fact many of these compounds have interesting and unique pharmacological properties. Application of 1075-62-3