No 6-7 Juin-Juilliet 2014
Tome 59, No 6-7 Juin-Juilliet 2014
Professor Eugen SEGAL – In memoriam
1. Victor FRUTH, Georgeta TANASE, Irina ATKINSON, Jeanina PANDELE CUSU, Gheorghe ALDICA and Maria ZAHARESCU
Synthesis and characterization of glass-ceramic superconductors in (Pb, B)-doped Bi-Sr-Ca-Cu-O system
Key words: (Pb, B)-doped BSCCO, glass-ceramic, superconductors.
2. Daniela AILINCAI, Andrei BEJAN, Irina TITORENCU, Mioara DROBOTA and Bogdan C. SIMIONESCU
Imino-chitosan derivatives. Synthetic pathway and properties
Key words: chitosan, Schiff base, spectroscopy, cell viability.
3. Dorel OLTEAN, Cristian SILVESTRU and Anca SILVESTRU
New multidentate potential ligands derived from acetylacetone
Key words: multidentate ligands, NMR spectroscopy, crystal and molecular structure, tautomerism.
4. Iulia MATEI, Cristina TABLET, Sorana IONESCU and Mihaela HILLEBRAND
Close-lying pKa value of kaempferol determinated by second-derivative synchronous fluorescence
Key words: flavonoid, pKa, synchronous fluorescence, second-derivative spectroscopy.
5. Domnina RAZUS, Venera GIURCAN, Maria MITU and Dumitru OANCEA
Physico-chemical parameters of C2 hydrocarbon-air flames resulted from computed and measured laminar burning velocities
Key words: flame, hydrocarbon, laminar burning velocity, flame thickness, heat release rate.
6. Niculae I. IONESCU
Grain boundary controlled electron transfer in oxide/gas system
Key words: thermionic emission, logarithmic law.
7. Andreea LUNGU, Anton Alexandru CIUCU, Daniela BALA and Constantin MIHAILCIUC
Investigations of hydroquinone oxidation inside the reaction layer of banana tissue with scanning electrochemical microscopy and double pulse amperometry
Key words: SECM, DPA, bananotrode, reaction layer tissue.
8. Cristina CARŞOTE, Petru BUDRUGEAC, Roumiana DECHEVA, Nikifor Stefanov HARALAMPIEV, Lucreţia MIU and Elena BADEA
Characterization of a Byzantine manuscript by infrared spectroscopy and thermal analysis
Key words: parchment and leather, FTIR, DSC, MHT, heritage conservation.
9. Medeea RADULESCU and Victor DAVID
Retention study for some neurotransmitters under ion-pairing liquid chromatographic mechanism
Key words: neurotransmitters, ion-pairing, liquid chromatography, partition model, electrostatic model, mobile phase composition.
10. Margarita GABROVSKA, Dorel CRIŞAN, Nicolae STĂNICĂ, Dimitrinka NIKOLOVA, Lyubima BILYARSKA, Maria CRIŞAN and Rumeana EDREVA-KARDJIEVA
Co-Al layered double hydroxides as precursors of ceramic pigment CoAl2O4. Part I: Phase composition
Key words: Co-Al layered double hydroxides, X-ray diffraction, phase composition, spinel-like Co-Al mixed oxides, CoAl2O4 spinel.
11. Margarita GABROVSKA, Nicolae STĂNICĂ, Dorel CRIŞAN, Dimitrinka NIKOLOVA, Lyubima BILYARSKA, Maria CRIŞAN and Rumeana EDREVA-KARDJIEVA
Co-Al layered double hydroxides as precursors of ceramic pigment CoAl2O4. Part II: Magnetic and tint properties
Key words: Co-Al mixed oxides, magnetic measurements, Co ions coordination symmetry, coloration of the calcined products, CoAl2O4 blue pigment.
12. Ana-Maria RESMERITA and Aurica FARCAS
Polyrotaxane based on polydimethylsiloxane and lower rim modified calix[8]arene derivatives
Key words: octaallyloxy-para-tertbutylcalix[8]arene, polydimethylsiloxane, inclusion complexes, main-chain polyrotaxanes.
13. Carmen RACLES and Vasile COZAN
New siloxane copolymers with pendant azomethine mesogenic units
Key words: polysiloxane, azomethine, liquid crystal, thermotropic, side-chain.
14. Alina-Mirela IPATE, Corneliu HAMCIUC, Maria BRUMA, Inga A. RONOVA and Mikail I. BUZIN
Influence of conformational rigidity on physical properties of some poly(1,3,4-oxadiazole-ether)s containing trifluoromethyl groups
Key words: poly(1,3,4-oxadiazole-ether)s, trifluoromethyl group, Kuhn segment, free volume.
15. Oana Iuliana NEGRU and Mircea GRIGORAS
Oligostyrene grafted poly(4,4’-triphenylamine vinylene)s obtained by combination of ATRP and Suzuki-Heck reactions
Key words: poly(arylene vinylene)s, atom transfer radical polymerization, Suzuki-Heck polycondensation, graft copolymers, optical properties.
16. Simona BISTRICEANU, Camelia MIHĂILESCU, Victor BULACOVSCHI, Bogdana SIMIONESCU and Constanţa IBĂNESCU
Rheological characterization of several cyan ethylated ketone resins
Key words: adhesives, amplitude sweep, dynamic moduli, frequency sweep, ketone-based resins.
17. Valentina Elena MUSTEATA, Vasile Cristian GRIGORAS and Virgil BARBOIU
Correlation of dielectric and calorimetric characteristics for an amorphous donor-acceptor copolymer
Key words: donor-acceptor interactions, glass transition, α relaxation.
18. Mioara DROBOTA, Irena GRIEROSU, Iulian RADU and Cipriana STEFANESCU
Modification of protein conformation can be monitored by Fourier Transform Infrared (FTIR) spectroscopy in oncological patients
Key words: albumin serum, radiotracers, FTIR spectroscopy.
19. Andreea Irina BARZIC
Temperature implications on the rheological percolation threshold in poly(4- vinylpyridine)/barium titanate nanocomposites
Key words: polymer nanocomposites, rheological percolation, barium titanate nanoparticles.
20. Magdalena AFLORI
Surface characterization of peritoneal dialysis catheter containing silver nanoparticles
Key words: peritoneal dialysis catheter, helium plasma, silver nitrate, antimicrobial.
21. Raluca Maria HLIHOR, Laura BULGARIU, Dana Luminita SOBARIU, Mariana DIACONU, Teresa TAVARES and Maria GAVRILESCU
Recent advances in biosorption of heavy metals: support tools for biosorption equilibrium, kinetics and mechanism
Key words: biosorption, desorption, mechanism, modeling and simulation, thermodynamics.
22. Constantin GĂINĂ, Viorica GĂINĂ and Cristian Dragos VARGANICI
Copoly(ester-urethane) networks containing thermoreversible bonds
Key words: thermoreversible networks, thermal properties, retro-Diels-Alder reaction.
23. Mădălina ZĂNOAGĂ, Yevgen MAMUNYA and Fulga TANASĂ
Conductive properties of some ternary thermoplastic nanocomposites filled with dispersed powders. A comparative study
Key words: thermoplastic nanocomposites, polyamide, polypropylene, metal, carbon nanotubes.
24. Mihail BÎRZESCU, Marius MILEA, Dan ROŞU, Ionuţ LEDEŢI, Madian RAFAILĂ, Viorel SASCA and Mircea NICULESCU
Synthesis and thermal analysis of the nickel(II) oxalate obtained through the reaction of ethylene glycol with Ni(NO3)2·6H2O
Key words: ethylene glycol, homopolynuclear coordination compound, nickel(II) oxalate, thermal analysis, nickel oxide.
25. Ana Irina COCÂRŢĂ and Ecaterina Stela DRĂGAN
Composite microspheres based on chitosan and poly(vinyl amine)
Key words: chitosan, composites, adsorption, heavy metal.
26. Angelica VLAD, Mirela-Fernanda ZALTARIOV, Maria CAZACU, Loredana VACAREANU, Sergiu SHOVA and Constantin TURTA
Hydrogen-bonded supramolecular structure built on the basis of ferrocenecarboxylic acid and 4,4’- azopyridine
Key words: supramolecular structure, ferrocene, azopyridine.
27. Ion SAVA and Thomas KÖPNICK
Synthesis and characterization of new diamines containing side substituted azobenzene groups
Key words: Williamson reaction, diamine, side azobenzene.
28. Maria IGNAT, Vera MEYNEN, Pegie COOL and Valeria HARABAGIU
Surface chemistry – the key-property of templated mesoporous carbons for sorption
Key words: templated carbon, surface chemistry, sorption property.
29. Claudia COBZARU, Corina CERNATESCU and Adriana MARINOIU
Modified clinoptilolite used for removing azomethines from wastewaters. I. The effect of the time of nitric acid treatment on clinoptilolite properties
Key words: nitric acid treatment, clinoptilolite, removing azomethines from wastewaters.
30. Alexandra GRUIA, Ramona CURPAN, Ana BOROTA, Liliana HALIP, Maria MRACEC and Mircea MRACEC
Phenyl and imidazole ring rotation in neutral and protonated dexmedetomidine. A semiempirical and ab initio study
Key words: AM1, PM3, HF/6-31G**, 1D energy profiles, α2-adrenergic receptors.
31. Georgeta Maria MARES, Adrian NICOARĂ, Graziella Liana TURDEAN and 2.0 Ionel Cătălin POPESCU
Electrochemical characterization of Au/L-cysteine/hemin modified electrode
Key words: hemin, l-cysteine, self-assembled structures on gold electrodes, cyclic voltammetry, square-wave voltametry.