Journal
CARBOHYDRATE POLYMERS
Volume 67, Issue 3, Pages 427-435Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2006.06.021
Keywords
carboxymethyl chitosan; acrylamide; CAN; graft copolymerization
Categories
Ask authors/readers for more resources
O-Carboxymethyl chitosan (CMCH) was prepared and characterized by FTIR spectroscopy and X-ray diffraction. Grafting of acrylamide (Am) 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 micrography (SEM) and X-ray diffraction of the products. The effects of concentration of CAN, Am, reaction time and temperature on graft copolymerization were studied by determining the grafting percentage, grafting efficiency and percentage add-on. With other conditions kept constant, the optimum grafting conditions were obtained as follows: CMCH = 2 g, CAN = 0.2 M, and Am = 0.563 mol/L, reaction temperature = 40 degrees C, and reaction time = 4.5 h. (c) 2006 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available