Vol. 7, Issue 2 (2019)
Studies on involvement of backbone of a polymer to bind cupric ion at lower pH
Author(s): Aloke Chattopadhyay
Abstract: Aqueous solution of guargum-graft-acrylamide (G-g-Am) and cupric nitrate solution mixture forms a green mass when pH is raised from acidic medium by adding ammonium hydroxide. UV spectral study indicates at lower pH interaction may take place between–CONH2 group of G-g-Am and Cu2+. At this pH, interaction is loose. Ultrasonic study indicates, ultrasonic attenuation from pH=>4 to pH=>6 is abnormal probably due to peculiar absence of involvement of backbone of polymer in the association below pH=>6.
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Fig. 1: Structure of guargum
Fig. 2: UV absorption spectra for aqueous solution of G-g-Am using water as reference.
Fig. 3: UV absorption spectra for the mixture of G-g-Am and Cu(NO3)2 solutions using Cu(NO3)2 solution as reference
Pages: 186-188 | 787 Views 145 Downloads
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How to cite this article:
Aloke Chattopadhyay. Studies on involvement of backbone of a polymer to bind cupric ion at lower pH. Int J Chem Stud 2019;7(2):186-188.
