Synthesis and characterization of chitosan-g-methacrylic acid and studies of its additional physicochemical properties, such as swelling, metal-ion sorption, and flocculation behavior

2009 ◽  
Vol 113 (4) ◽  
pp. 2429-2439 ◽  
Author(s):  
Dinesh Kumar Mishra ◽  
Jasaswini Tripathy ◽  
Abhishek Srivastava ◽  
Peeyoosh Kant Pandey ◽  
Kunj Behari
Keyword(s):  
Physicochemical Properties ◽  
Methacrylic Acid ◽  
Metal Ion ◽  
Synthesis And Characterization ◽  
Ion Sorption

Synthesis and characterization of hydrogels based on gamma irradiation of acrylic acid and methacrylic acid

2009 ◽  
Vol 30 (5) ◽  
pp. 569-575 ◽  
Author(s):  
Horia M. Nizam El-Din ◽  
El-Sayed A. Hegazy ◽  
Doaa M. Ibraheim
Keyword(s):  
Acrylic Acid ◽  
Gamma Irradiation ◽  
Methacrylic Acid ◽  
Synthesis And Characterization

scholarly journals Synthesis and characterization of Ni(II), Cu(II) and Co(III) complexes with polyamine-containing macrocycles bearing an aminoethyl pendant arm

2004 ◽  
Vol 69 (8-9) ◽  
pp. 641-649 ◽  
Author(s):  
Fouzia Rafat ◽  
M.Y. Siddiqi ◽  
K.S. Siddiqi
Keyword(s):  
Metal Ion ◽  
Magnetic Moments ◽  
Carbon Chain ◽  
Macrocyclic Complex ◽  
Synthesis And Characterization ◽  
Epr Spectrum ◽  
Pendant Arm ◽  
Octahedral Environment ◽  
Electrical Conductivities

Reaction of [M(ppn)2]X2 (where M = Cu(II), Ni(II), Co(II) and ppn = 1,3-diaminopropane) with formaldehyde and ethylenediamine in methanol results in the ready formation of a 16-membered macrocyclic complex. The complexes were characterized by elemental analysis, IR, EPR, electronic spectral data magnetic moments and conductance measurements. The Cu(II), Ni(II) and Co(III) complexes are coordinated axially with both pendant groups of the hexadentate macrocycle. These pendant donors are attached to the macrocycle by a carbon chain. The electrical conductivities of the Cu(II) and Ni(II) chelates indicated them to be 1:2 electrolytes whilst those of Co(III) is a 1:3 electrolyte in DMSO. The EPR spectrum of the copper complex exhibited G at 3.66, which indicates a considerable exchange interaction in the complex. Spectroscopic evidence suggests that in all of the complexes the metal ion is in an octahedral environment.

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