TY - GEN
T1 - Thermal characterization of xylan-graft-polyacrylonitrile
AU - Ünlü, Cüneyt H.
AU - Atici, Oya G.
PY - 2012
Y1 - 2012
N2 - In this work thermal characterization of two polyacrylonitrile copolymers, which obtained from emulsion polymerization of xylan, a polysaccharide from agricultural waste material (corn cob), initiated with ceric ammonium nitrate, was studied. Copolymers were synthesized at optimum conditions using two different acids, nitric acid and perchloric acid, in stock solutions of ceric ion and labelled as acid name as a subscript (X-PAN HNO3 and X-PAN HClO4). Thermal analyses were conducted using differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). Data obtained from measurements were analyzed using GNU Octave and QtiPlot. Results showed that thermal decomposition is firstly related with molecular weight of the obtained copolymer. Oxidation of xylan main chain had also an effect on both decomposition mechanism and activation energy for decomposition.
AB - In this work thermal characterization of two polyacrylonitrile copolymers, which obtained from emulsion polymerization of xylan, a polysaccharide from agricultural waste material (corn cob), initiated with ceric ammonium nitrate, was studied. Copolymers were synthesized at optimum conditions using two different acids, nitric acid and perchloric acid, in stock solutions of ceric ion and labelled as acid name as a subscript (X-PAN HNO3 and X-PAN HClO4). Thermal analyses were conducted using differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). Data obtained from measurements were analyzed using GNU Octave and QtiPlot. Results showed that thermal decomposition is firstly related with molecular weight of the obtained copolymer. Oxidation of xylan main chain had also an effect on both decomposition mechanism and activation energy for decomposition.
KW - Differential scanning calorimeter
KW - Graft copolymer
KW - Polyacrylonitrile
KW - Thermal characterization
KW - Thermogravimetric analysis
UR - http://www.scopus.com/inward/record.url?scp=84867019009&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84867019009
SN - 9781926769080
T3 - 6th International Conference on Thermal Engineering Theory and Applications
BT - 6th International Conference on Thermal Engineering Theory and Applications
T2 - 6th International Conference on Thermal Engineering Theory and Applications
Y2 - 29 May 2012 through 1 June 2012
ER -