Synthesis and characterization of antimicrobial hyperbranched polyesters

Author(s): S.Karpagam, S.Guhanathan

Hyperbranched polyesters are a group of materials within the family of dendritic polymers (dendrimers and hyperbranched polymers) that have enjoyed increased attention in recent years. Hyperbranched polymers have a large number of end groups, which allows themto be tailored for different applications. Hyperbranched, aromatic polyester of third generation was synthesized in the molten state from 2,2-bis(hydroxymethyl)propionic acid (repeating unit ofABx type) and Phloroglucinol as core molecule using acid catalysis. Endcapping reactions were performed using selected heterocyclic phosphonyl dichlorides (example: indole and imidazole) to forman antimicrobial polymers (IN-HBPE and IM-HBPE). Formations of the compounds were identified by different spectral studies viz., FT-IR, 1H NMR and 13C NMR . 13C NMR provides information about degree of branching of these polymers. Biological studies reveal that IN-HBPE and IM-HBPE has small activity than that of HBPE.

Share this       
izmir escort izmir escort bursa escort antalya escort izmir escort porno porno izle türk porno eskişehir escort bartın escort burdur escort izmir escort bursa escort porno indir izle istanbul escort istanbul escort bayan escort izmir