Journal of Material Sciences & Engineering

Faculty of Sciences and EDST, Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA) and LEADDER Laborator, Hariri Campus, Hadath, Beirut, Lebanese University, Lebanon

Publications

• Research   
  New Methods for the Determination of the Surface Physicochemical Properties and Glass Transition of Polyaniline in Conducting and Non-Conducting Forms by Using Igc Technique at Infinite Dilution
  Author(s): Tayssir Hamieh*, Khaled Chawraba, Jacques Lalevée and Joumana Toufaily
  
  Many studies were devoted in our Laboratory to the determination of physico-chemical and thermodynamic properties of polymers and/or oxides by using the inverse gas chromatography (IGC) at infinite dilution. More particularly, we studied the interactions of solid substrates with some model organic molecules and their acid-base properties, in Lewis terms, by determining the acidic and basic constants. We proposed in this paper to study the surface thermodynamic energetics, transition phenomena, specific interactions and acid-base properties of both the conducting polyaniline (PANI-HEBSA) and the non-conducting form (PANI-EB) on the light of the new progresses of IGC methods. This technique was used to obtain the net retention volume Vn and then the dispersive free enthalpy of n-alkanes adsorbed on PANI. The curves of the dispersive component of the surface energy of n-alkanes adsorbed .. Read More»
  DOI: 10.37421/2169-0022.2021.10.565

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