caa a22 4500 445802251 CHVBK 20180317145145.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10337-010-1824-2 doi (NATIONALLICENCE)springer-10.1007/s10337-010-1824-2 Effect of the Tacticity of PMMA Adsorbed on Alumina and Silica on the Specific Entropy Change of Polymer by Inverse GC [Elektronische Daten] [Tayssir Hamieh, Joumana Toufaily, Abdul Mouneimné] Inverse gas chromatography (IGC) at infinite dilution is a powerful technique to characterize the superficial and interfacial properties of solid substrates as oxides, polymers or polymers adsorbed on oxides. It can also be used to determine the physicochemical properties and the transition phenomena of polymers. In this paper, IGC was used to determine the changes, as a function of temperature, of the specific free enthalpy ΔG aSPand deduce the specific entropy ΔS aSPof poly (methyl methacrylate) (PMMA) adsorbed on alumina or on silica for different tacticities of PMMA. The study of the surface properties of PMMA/SiO2 and PMMA/Al2O3, revealed an important difference in the physicochemical behaviour of oxides covered by various concentrations of PMMA. This study also highlighted an important effect of the tacticity of the polymer on the specific entropy of PMMA adsorbed on oxides. Springer-Verlag, 2011 Inverse gas chromatography nationallicence Tacticity nationallicence Specific entropy and interactions nationallicence Retention volume nationallicence Adsorption nationallicence Hamieh Tayssir Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh, Beirut, Lebanon aut Toufaily Joumana Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA-CHAMSI), Faculty of Sciences, Lebanese University, Hariri Campus, Hadath, Beirut, Lebanon aut Mouneimné Abdul Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh, Beirut, Lebanon aut Chromatographia Vieweg Verlag 73/1-2(2011-01-01), 99-107 0009-5893 73:1-2<99 2011 73 10337 https://doi.org/10.1007/s10337-010-1824-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10337-010-1824-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hamieh Tayssir Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh, Beirut, Lebanon aut NATIONALLICENCE 700 1- Toufaily Joumana Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA-CHAMSI), Faculty of Sciences, Lebanese University, Hariri Campus, Hadath, Beirut, Lebanon aut NATIONALLICENCE 700 1- Mouneimné Abdul Faculty of Agricultural Engineering and Veterinary Medicine, Lebanese University, Dekwaneh, Beirut, Lebanon aut NATIONALLICENCE 773 0- Chromatographia Vieweg Verlag 73/1-2(2011-01-01), 99-107 0009-5893 73:1-2<99 2011 73 10337 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer