SYNTHESIS AND CHARACTERIZATION OF NEW AMPHOTERIC GRAFT COPOLYMER OF SODIUM CARBOXYMETHYL CELLULOSE WITH ACRYLAMIDE AND DIMETHYLAMINOETHYL METHYLACRYLATE
Sb. Tan et al., SYNTHESIS AND CHARACTERIZATION OF NEW AMPHOTERIC GRAFT COPOLYMER OF SODIUM CARBOXYMETHYL CELLULOSE WITH ACRYLAMIDE AND DIMETHYLAMINOETHYL METHYLACRYLATE, Journal of applied polymer science, 69(5), 1998, pp. 879-885
The graft copolymerization of sodium carboxymethylcellulose (NaCMC) wi
th acrylamide (AM) and dimethylaminoethyl methylacrylate (DMAEMA) was
conducted in an aqueous solution using ammonium persulfate (APS) and N
,N,N',N'-tetramethylethylene diamine (TMEDA) as the initiator. The eff
ects of various factors on grafting such as temperature, pH, initiator
concentration, and concentrations of AM, DMAEMA, and NaCMC were studi
ed. The composition and thermal stability of the graft copolymers were
characterized by infrared, elemental, and thermogravimetric analysis,
and degradation activation energy and kinetic order were calculated.
The relationship between its reduced viscosity and pH in aqueous NaCl
was also investigated. (C) John Wiley & Sons, Inc. J Appl Polym Sci 69
: 879-885, 1998.