Synthesis and Characterization of Carboxymethyl Chitosan Grafted Methacrylic Acid Initiated by Ceric Ammonium Nitrate

O-carboxymethyl chitosan (CMCH) was prepared and characterized by FTIR spectroscopy and X-ray diffraction. Grafting of methacrylic acid (MA) onto CMCH using ceric ammonium nitrate (CAN) as an initiator was carried out under nitrogen atmosphere in aqueous solution. Evidence of grafting was confirmed...

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Bibliographic Details
Published inJournal of polymer research Vol. 13; no. 5; pp. 387 - 395
Main Authors Joshi, Jigar M, Sinha, Vijay Kumar
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.10.2006
Subjects
Ammonium nitrate
Ammonium nitrates
Aqueous solutions
Cerium ammonium nitrate
Chitosan
Copolymerization
Copolymers
Diffraction
Electron micrographs
Fourier transforms
Graft copolymers
Grafting
Infrared spectroscopy
Methacrylic acid
Reaction time
Spectrum analysis
X-ray diffraction
X-rays
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Summary:O-carboxymethyl chitosan (CMCH) was prepared and characterized by FTIR spectroscopy and X-ray diffraction. Grafting of methacrylic acid (MA) onto CMCH using ceric ammonium nitrate (CAN) as an initiator was carried out under nitrogen atmosphere in aqueous solution. Evidence of grafting was confirmed by comparison of FTIR spectra of CMCH and the grafted copolymer as well as scanning electron micrograph (SEM) and X-ray diffraction of the products. The effects of concentration of CAN, MA, reaction time and temperature on graft copolymerization were studied by determining the grafting percentage and grafting efficiency. Keeping other conditions constant, the optimum grafting conditions were obtained as follows: CMCH = 2 gm, CAN = 0.2 M and MAA = 0.581 mol/L, reaction temperature = 40°C and reaction time = 4.5 hr.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-006-9056-8