Add time:08/21/2019         Source:sciencedirect.com

Synthesis of new phosphorus dendron containing 2-Butyne-1,4-diol (cas 110-65-6) at the core is described. The divergent build-up of the dendron is based on simple condensation reactions performed by using P(O)Cl3, 3-hydroxybenzaldehyde, hydrazine hydrate, 4-hydroxybenzaldehyde and 2-mercaptoethanol. The final dendron is a Schiff’s base macromolecule possessing 8 imine bonds and 8 OH groups at the periphery. The intermediate dendrons were confirmed by IR, NMR (1H, 13C and 31P), LC–Mass and C, H, N analyzes. The structure of the final dendron 6 was confirmed by IR, NMR (1H, 13C and 31P), MALDI-TOF-MS, and C, H, N analysis. The surface morphology of the dendron 6 was understood by Scanning Electronic Microscopic study (SEM). To determine the changes in weight in relation to change in temperature of the final dendron 6 was studied by TGA/DTA analysis.

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