Article ID Journal Published Year Pages File Type
1390236 Carbohydrate Research 2013 8 Pages PDF
Abstract

•Synthesis of water soluble fluorogenic, interpolymeric and diamide of polyglucuronic acid of cellulose and alginic acid.•Polyglucuronic acid and alginic acid were coupled using ethylenediamine as a cross linker.•The interpolymeric amide exhibited fluorogenic and metal ion scavenging properties.

A microwave assisted synthesis of a water soluble fluorogenic interpolymeric diamide has been described involving alginic acid and polyglucuronic acid (PGA) amide of ethylenediamine (EDA), through a monoamide of PGA and EDA, in good yields (>80 wt % in each step). PGA was prepared by TEMPO (2,2,6,6-tetramethyl piperidine-1-oxyl radical) mediated oxidation of cellulose of the halophytic plant Salicornia brachiata. The amides were characterized by spectral analyses. The fluorescence emission of the PGA amide was 7-fold greater than that of the interpolymeric diamide. PGA monoamide exhibited superior heavy metal ions [Pb(II) and Hg(II)] uptake properties to the diamide, the former showing optimum adsorptions of ions 398.8 and 282.8 mg/g, respectively. These materials may be of utility as potential sensors harnessing their fluorogenic and metal scavenging properties.

Graphical abstractA facile synthesis of interpolymeric, fluorogenic, and metal scavenging diamide of polyglucuronic acid of cellulose and alginic acid using ethylenediamine has been described.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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