No 11-12, Novembre-Decembre 2009

Tome 54, No 11-12 Novembre-Decembre 2009

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1. Centennial of acad. Ecaterina Ciorănescu-Nenitzescu’s birthday

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2. Angela POPESCU, Elena ANDREI, Daniela ISTRATI, Constantin DRĂGHICI, Crinu CIUCULESCU and Mircea D. BANCIU

Flow-vacuum pyrolysis of polycyclic compounds. 27. Pyrolysis of 8,9-dihydro-14H- tetrazolo[1,5a]dibenzo[c,f]azonine and 6,7,8,9-tetrahydro-tetrazolo[1,5a]benzo[c]azocine.

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Key words: flow-vacuum pyrolysis, tetrazoloazonine, tetrazoloazocine, N-cyanoderivatives.

3. Emilia OLTEANU, Angela POPESCU, Constantin DRĂGHICI and Crinu CIUCULESCU

Flow-vacuum pyrolysis of polycyclic compounds.28. Pyrolysis of 1a,2,2a,6b,7, 7a-hexahydro-1β-
(hydroxymethyl)-2,7-methano-cyclo-propa[b]biphenylene.

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Key words: flow-vacuum pyrolysis, benzotetracyclic primary alcohol, tetrahydro-hydroxymethyl-benzo[e]azulenes.

4. Ana Cristina RĂDUŢIU, Ion BACIU, Miron T. CĂPROIU, Constantin DRĂGHICI, Adrian BETERINGHE, Maria MAGANU, Radu SOCOTEANU, Titus CONSTANTINESCU and Alexandru T. BALABAN

Two isomeric bis-dinitrocarboxyphenyl-Kriptofix-22 derivatives: synthesis and characteristics.

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Key words: K22 Isomers derivatives, 1H- and 13C-NMR, theoretical structural investigation, hydrophobic/hydrophilic balance.

5. Luminitza PÂRVULESCU, Anca MARTON, Marina MIHAI, Constantin DRĂGHICI, Richard A. VARGA and Mircea D. GHEORGHIU

6,6-dimethyl- and 6,6-diphenylfulvene as cycloaddents in reaction with Moore’s ketene.

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Key words: ketenes, fulvenes, cycloadditions.

6. Sandra REEMERS, Helmut KEUL and Martin MÖLLER

Synthesis and films of dendritic poly(ε-caprolactone) hybrids.

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Key words: HDI-uretdione, dendritic hybrids, hydrophobic surfaces, oleophobic, scaning force microscopy.

7. Alexandru C. RAZUS, Liviu BIRZAN, Mihaela CRISTEA, Eleonora-Mihaela UNGUREANU and
Dan-Ion CAVAL

Electrochemical behaviour of bis diazenyls containing azulenyl moieties.

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Key words: azo–azulene compounds, cyclic voltammetry, ionization potentials, molecular orbital calculations.

8. Florea DUMITRAŞCU, Constantin DRĂGHICI, Miron T. CĂPROIU, Dan G. DUMITRESCU, Marcel Mirel POPA

New pyrrolo[1,2-b]pyridazine derivatives.

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Key words: pyrrolo[1,2-b]pyridazine, pyridazinium N-ylides, multicomponent reaction.

9. Mariana Viorica BOGĂŢIAN, Anca HÎRTOPEANU, Alina NICOLESCU, Gheorghe BOGĂŢIAN, Călin DELEANU, Maria MAGANU and Petru FILIP

Pyrylium salts with long alkyl substituents. 2,6-dipalmitoyl- and 2,6-distearoyl-3,4-dimethyl pyrylium salts, derived pyridines and pyridinium salts.

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Key words: pyrylium and pyridinium salts with long alkyl substituents, regioselectivity.

10. Paul Cătălin BALAURE, Ion COSTEA, Florin IORDACHE, Constantin DRĂGHICI and Cristian ENACHE

Synthesis of new dibenzo[b,f]azepine derivatives.

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Key words: dibenzo[b,f]azepine, 10,11 dihydrodibenzo[b,f]azepine, antiepileptic drugs.

11. Michaela Dina STĂNESCU, Beatrice CALMUSCHI-CULA and Cornelia GURAN

Dibenzobicyclo[2.2.2]octane derivatives. II. Structure and decomposition evidenced by X-ray analysis.

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Key words: dibenzobicyclo[2.2.2]octane derivatives, X-ray study, decomposition at complexation.

12. Magdalena Cristina STANCIU, Marieta NICHIFOR and Bogdan C. SIMIONESCU

New biocompatible polyesters based on bile acids.

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Key words: polyester, bile acid, thermal behaviour, cristallinity.

13. Ion SAVA

FeS2/polyimide composite films. Synthesis and characterization.

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Key words: FeS2/polyimide composite film, thermal stability, dynamic mechanical behaviour.

14. Cristina PRISACARIU and Elena SCORTANU

The thermal behaviour of selected crosslinked polyurethanes as revealed by thermogravimetry and static compression tests.

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Key words: isocyanates, polyurethane elastomers, thermogravimetry, static compression tests.

15. Elena SCORTANU and Cristina PRISACARIU

New heterocyclic polymers with vicinal parabanic structures.

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Key words: heterocyclization reaction, parabanic structure, thermal stability, transformation degree.

16. Simona MORARIU, Irina-Elena LĂMĂTIC and Maria BERCEA

Rheological behavior of smectite aqueous dispersions.

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Key words: bentonite, smectite, viscoelastic properties, clay dispersion.

17. Irina-Elena LĂMĂTIC, Maria BERCEA and Simona MORARIU

Intrinsic viscosity of aqueous polyvinyl alcohol solutions.

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Key words: polyvinyl alcohol, viscosity, Mark-Houwink relationship.

18. Constantin I. CHIRIAC, Fulga TANASA and Marioara NECHIFOR

A novel direct boron-mediated synthesis of cinnamic acids from aromatic aldehydes and aliphatic carboxylic acids.

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Key words: direct condensation reaction, sodium tetraborate-lithium chloride, cinnamic acids.

19.  Emil C. BURUIANĂ, Mirela ZAMFIR and Tinca BURUIANĂ

Evidence for a fluorescence enhancement of some dansyl and stilbene derivatives used as optical
chemosensors.

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Key words: stilbene, dansyl, fluorescence, “turn-on” sensors.

20.  Tinca BURUIANĂ, Violeta MELINTE, Florentina JITARU and Emil C. BURUIANĂ

Evaluation of some multifunctional monomers for use in dental purposes.

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Key words: dimethacrylate, carboxyl, dental formulation, mechanical parameters.

21.  Elena HAMCIUC, Corneliu HAMCIUC and Maria CAZACU

Comparative evaluation of some properties of two poly(ether-imide) thin films with/without fluorine in the structure.

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Key words: poly(ether-imide)s, thin films, thermal stability, contact angles, water vapors sorption capacity.

22.  Radu-Dan RUSU, Mariana-Dana DAMACEANU and Maria BRUMĂ

Comparative study of soluble poly(keto-naphthylimide)s.

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Key words: soluble poly(keto-naphthylimide)s, high thermostability, thin films, photoluminiscence.

23. Irina BACOŞCĂ, Elena HAMCIUC, Maria BRUMĂ and Marta SZESZTAY

Modified aromatic polyimides with flexible groups.

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Key words: polyimides, good solubility, thin films, thermal stability.

24. Marieta CONSTANTIN and Gheorghe FUNDUEANU

Cyclodextrin-containing poly(vinyl alcohol) as non-viral gene delivery systems. 1. Preparation of polymers.

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Key words: cationic polymers, poly(vinyl alcohol), β-cyclodextrin, gene delivery system.

25. Violeta NEAGU and Ion BUNIA

Synthesis and morphologic characterization of ethylacrylate : acrylonitrile : divinylbenzene
copolymers.

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Key words: acrylic copolymers, suspension polymerization, porous structure determination, swelling.

26. Sergiu COSERI

Diisocyanates reactivity with diols under pseudo-high dilution condition.

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Key words: diisocyanate, diol, reactivity, oligomer, alcohol.

27. Cornel MUNTEANU, Niculae I. IONESCU, Marcel FEDER, Lucian DIAMANDESCU and
Monica CĂLDĂRARU

Catalytic and electrical properties of iron oxide in deep propane oxidation.

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Key words: hematite, propane oxidation, electrical conductivity.

28. Mirela ENACHE and Elena VOLANSCHI

The influence of ionic strength on the binding of antitumor drug actinomycin D to double stranded DNA.

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Key words: actinomycin D, DNA binding, ionic strength.

29. Ioana STĂNCULESCU and Cezar BENDIC

In silico study of hydroxyl radical reaction with 1,2-dimethyl-1,2,3,4-tetrahydroisoquinolines.

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Key words: hydroxyl radical, tetrahydroisoquioline, transition state, AM1, IRC, CHN.

30. Marin MICUTZ, Teodora STAICU, Minodora LECA and Corneliu GHICA

Adsorption complexes of collagenous polypeptide-ionic surfactant in aqueous medium. 1. The formation of micellar structure of ionic surfactant adsorbed onto collagenous polypeptide chain.

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Key words: collagen, collagen hydrolyzate, polypeptide, ionic surfactant, adsorption complexes.

31. Dorin ŞULEA and Minodora LECA

Collagen-Thuja tincture biomaterials for wound treatment. 1. Analysis of the volatile fraction from Thuja columnaris tincture by GC/MS.

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Key words: volatile compounds of Thuja occidentalis var. columnaria tincture, GC-MS analysis, antimicrobial activity, wound treatment.

32. Mihaela Violeta GHICA, Mădălina Georgiana ALBU, Lăcrămioara POPA, Minodora LECA,
Lavinia BRĂZDARU, Cosmin COTRUŢ and Viorica TRANDAFIR

Drug delivery systems based on collagen-tannic acid matrices.

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Key words: collagen, tannic acid, FT-IR spectral characteristics, in vitro release, enzymatic degradation.

33. Ionel POPESCU, Akos REDEY, Ioan-Cezar MARCU, Bogdan POPESCU, Eva MAKO and Ioan SĂNDULESCU

Catalytic combustion of methane over unsupported and γ-Al2O3 supported Sr2FeTaO6  and Sr2Fe0.7Co0.3TaO6 double perovskites.

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Key words: double perovskites, methane, catalytic combustion.

34. Maria-Gabriela ALEXANDRU, Ioana JITARU, Polina BOUROSH, Constantin DRĂGHICI, Erwann JEANNEAU, Victor Ch. KRAVTSOV and Yurii A. SIMONOV

Two new hydrogen bonded networks obtained in MCl2·xH2O (M=Mn, Cu)- N,N’-ethylenebisacetamide system.

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Key words: N,N’-ethylenebisacetamide, cocrystals, Cu(II), Mn(II), tridimensional frameworks.

35. Alexandru CECAL, Florica IONICĂ, Gheorghe NEMŢOI and Karin POPA

Use of β-rays absorption in the study of steel corrosion.

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Key words: β-rays absorption, corrosive solutions, kinetics, steel, 204 Tl-radionuclide.

36. Cătălin LISA, Gabriela LISA and Silvia CURTEANU

Neural networks used for the prediction of the structure-thermal stability relation.

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Key words: feedforward neural networks, modular neural networks, thermal stability, polyimides.

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