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Revue Roumaine de Chimie, 2008, 53(6), 421–504421REVUE ROUMAINE DE CHIMIE(ROUMANIAN JOURNAL OF CHEMISTRY)Tome 53, N o 6 Juin 2008REVIEWKrassimira KUMBILIEVA andLachezar PETROVReaction mechanism and deactivation modesof heterogeneous catalytic systemsRev. Roum. Chim., 2008, 53(6), 425-430Key words: catalysis, kinetics, deactivation, reaction mechanism.PAPERSMariana Viorica BOGĂŢIAN,Anca HÎRTOPEANU, Alina NICOLESCU,Filip CHIRALEU, Maria MAGANU,Mircea VÎNĂTORU, Demetra SIMION andCălin DELEANUPyrylium salts with long alkyl substituents andderived pyridinium saltsR 3CH 3+R 2 N R 6Cl1Cl - 4ClRev. Roum. Chim., 2008, 53(6), 431-437Gabriela IONIŢĂKey words: N-phenylpyridinium chlorides, surfactants, CMC.Inclusion complexes between β-cyclodextrin andbiradicals with a rigid aromatic skeletRev. Roum. Chim., 2008, 53(6), 439-445Constantin MIHAILCIUC and Stelian LUPUElectrodeposition, characterization and applicationof Pt/CoHCF modified electrodeKey words: biradicals, EPR spectroscopy, cyclodextrin.-0.500x10 -50.600x10 -4-0.450x10 -5-0.400x10 -50.350x10 -4-0.350x10 -5-0.300x10 -5i / A-40.100x10i / A-5-0.250x10-0.200x10 -5-0.150x10 -5-0.150x10 -4-0.100x10 -5-0.050x10 -5-0.400x10 -4-0.100 0.150 0.400 0.650 0.900E(V )00 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800E / VRev. Roum. Chim., 2008, 53(6), 447-452Key words: ascorbic acid, cobalt(II)-hexacyanoferrate, differential pulsevoltammetry.

422Constantin MIHAILCIUC and Stelian LUPUElectrodeposition, characterization and applicationof Pt/P3MT modified electrode0.125x10 -20.100x10 -20.075x10 -20.050x10 -2i / A0.025x10 -20-0.025x10 -2-0.050x10 -2-0.075x10 -20 0.250 0.500 0.750 1.000 1.250 1.500 1.750E(V )Rev. Roum. Chim., 2008, 53(6), 453-457Viorel BRÂNZOI, Florina BRÂNZOI,Angela STANCA and Liviu MITITEANUCorrosion protection of industrial cooling watersystems by using new organic polymers asinhibitorsKey words: ascorbic acid, poly(3-metylthiophene), conducting polymer,differential pulse voltammetry.10 310 2i(µA/cm 2 )10 110 010 -1-1000 -900 -800 -700 -600 -500 -400 -300 -200 -100E(mV)Rev. Roum. Chim., 2008, 53(6), 459-469Key words: antiscaling and corrosion inhibitors, microwave field,potentiodynamic polarizations, metallography analysis.Ioan-Răducan STAN,Maria TOMOAIA-COTISEL, Aurelia STANand Cristina BORZANThe effect of surface active compound adsorptionon free drop deformationsRev. Roum. Chim., 2008, 53(6), 471-479Key words: interfacial tension gradient, Marangoni force, Marangonieffect, free drop deformations, dynamic instability,hydrodynamic model.Teodora STAICU, Marin MICUTZ,Gabriela CRISTESCU and Minodora LECATemperature influence on surfactants adsorptiononto poly(vinyl acetate) latices prepared viasurfactant-free emulsion polymerizationRev. Roum. Chim., 2008, 53(6), 481-487Key words: surfactant-free emulsion polymerization, monodispersedlatices, surfactant adsorption, fluorescence probes.

423Roxana BADULESCU, Ion BOLOCAN andDan Sorin VASILESCUChemical transformation of poly(styrene-alt-maleicanhydride) with p-amino-N, N-diethylanilineAbsorbance2.52.01.51.00.51/2 h1 h3 h7 h24 h0.0200 300 400 500 600 700 800wavelength, nmRev. Roum. Chim., 2008, 53(6), 489-496Key words: poly (styrene-alt-maleic anhydride); chemical transformation;FTIR analyses.NOTEDaniela ISTRATI, Angela POPESCU,Dan MIHAIESCU, Ioana SARAMET andMihaela C. BALAŞUFlow-vacuum pyrolysis of polycyclic compounds.25. Pyrolysis of some 3-mercapto-5-substituted-1,2,4-triazolesR 1SO 2R 1 = H, Cl, BrNNHNSHRev. Roum. Chim., 2008, 53(6), 497-503Key words: flow-vacuum pyrolysis (FVP), substituted-1,2,4-triazoles.

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