Abstract
In the present work, the temperature dependence of the molar heat capacity of chitosan-graft-poly(2-ethylhexyl acrylate) copolymer was measured for the first time in the temperature range from 6 to 350 K by precise adiabatic calorimetry, and the thermophysical properties of copolymer were studied over the range from 270 to 570 K by differential scanning calorimetry. In the above temperature intervals, the glass transition was detected for the investigated compound, and the standard thermodynamic characteristics were determined and analyzed. The standard thermodynamic functions: heat capacity Cpo(T), enthalpy [H°(T)−H°(0)], entropy [S°(T)−S°(0)], and the Gibbs energy [G°(T)−H°(0)] for the range from T → 0 to 350 K, as well as the standard entropy of formation ΔfS° and the Gibbs energy of formation ΔfG° of copolymer at T = 298.15 K in the glassy state were calculated based on the obtained experimental data. The standard thermodynamic properties of the investigated copolymer were discussed and compared with the literature data for the studied earlier copolymers of chitosan.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
