Robert ADAMSUniversitatea din Bristol, ANGLIAConstantin ANDREIITEC BRAZI, ROMNIAIlare BORDEAUUniversitatea Politehnica Timioara, ROMNIAIgor CATICUniversitatea din Zagreb, CROAIAIoan CHIFORNAPOCHIM Cluj -Napoca, ROMNIADan DONESCUICECHIM Bucureti, ROMNIAAlberto DAMOREUniversity of Naples - SUN, Aversa ITALIAMihai DIMONIEICECHIM Bucureti, ROMNIAHoria IOVUUniversitatea Politehnica Bucureti, ROMNIAValeriu V. JINESCUUniversitatea Politehnica Bucureti, ROMNIA

Indicele de impact pe anul 2007: 0,404Revista este recenzat de:CHEMICAL ABSTRACTSCURRENT CONTENTSi indexat deInstitute for Scientific Information (ISI)

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Redactor efCarmen IOANCorectorMaria PAXAMANTehnoredactare computerizatMonica BLU

MATERIALE PLASTICEBUCURETI, ROMNIA

Revista apare trimestrialCopyright MATERIALE PLASTICE

Gad MAROMThe Hebrew University of Jerusalem, ISRAELWalter MICHAELIINSTITUT FUR KUNSTSTOFFVERARBEITUNG,Aachen, GERMANIANorbert STRIBECKUniversitatea Hamburg, GERMANIAGeorge PAPANICOLAOUUniversitatea din Patras, GRECIAIon SERES.C. Plastor SA Oradea, ROMNIABogdan Cr. SIMIONESCUInstitutul de Chimie Macromolecular P. Poni Iai,ROMNIAMircea Sava TEODORESCUUniversitatea Politehnica Bucureti, ROMNIADumitru Mircea VULUGACentrul de Chimie Organica C.D. Neniescu,ROMNIA

COLEGIUL EDITORIALEditor ef

Emil BUZDUGANINCDCP - ICECHIM BUCURETI

Editori efi AdjunciAnton HADR

Viorel Puiu PUNUniversitatea POLITEHNICA Bucureti

materiale plastice elastomeri

fire i fibre sintetice materiale compozite

sintez, caracterizare, inginerie

2007 Impact factor: 0,404Recensed by:CHEMICAL ABSTRACTSCURRENT CONTENTSand Indexed byInstitute for Scientific Information (ISI)

Adress: SC BIBLIOTECA CHIMIEI SA - REVISTA MATERIALE PLASTICE

Calea Plevnei, Nr. 139B, Sector 6, OP 12 CP 109 Bucureti060011Tel./Fax: (+40) 314 24 47www.revmaterialeplastice.roe-mail: monica.baluta@syscom18.com

General Manager SYSCOM 18Ion ANDRONACHEManager SC BIBLIOTECA CHIMIEI SANelia MIHIL

Editor in ChiefCarmen IOANProof ReaderMaria PAXAMANMake-up EditorMonica BLU

MATERIALE PLASTICEBUCHAREST, ROMANIA

Quarterly issue:Copyright MATERIALE PLASTICE

EDITORIAL BOARDPublisher

Emil BUZDUGANINCDCP - ICECHIM BUCHAREST

Publisher AssistantAnton HADAR

Viorel Puiu PAUNUniversity POLITEHNICA BUCHAREST

Plastic Materials Elastomers

Synthetic Yarns and Fibers Composite Materials

Synthesis, Characterization, Engineering

Robert ADAMSBristol University, UKConstantin ANDREIITEC Brazi, ROMANIAIlare BORDEAUPolitehnica University Timisoara, ROMANIAIgor CATICUniversity of Zagreb, CROAIAIoan CHIFORNapochim, Cluj- Napoca, ROMANIADan DONESCUICECHIM Bucharest, ROMANIAAlberto DAMOREUniversity of Naples - SUN, Aversa ITALYMihai DIMONIEICECHIM Bucharest, ROMANIAHoria IOVUPolitehnica University of Bucharest, ROMANIA

Valeriu V. JINESCUPolitehnica University Bucharest, ROMANIAGad MAROMThe Hebrew University of Jerusalem, ISRAELWalter MICHAELIInstitut fur Kunststoffverarbeitung, Aachen, GERMANY,Aachen, GERMANIANorbert STRIBECKUniversity of Hamburg, GERMANYGeorge PAPANICOLAOUUniversity of Patras, GRECIAIon SERES.C. Plastor SA Oradea, RomaniaBogdan Cr. SIMIONESCUMacromolecular Chemistry Institute P. Poni Iasi,RomaniaMircea Sava TEODORESCUPolitehnica University, ROMANIADumitru Mircea VULUGAOrganic Chemistry CenterC.D.Nenitescu, ROMANIA

CUPRINS

4MATERIALE PLASTICE

Bucureti-RomniaChem. Abs.: MPLAAM 45 (4) (305-420)

ISSN 0025 / 5289Vol. 45, nr. 4, decembrie 2008

materiale plastice elastomeri fire i fibre sintetice materiale compozite sintez, caracterizare, inginerie

D. Donescu, Zina Vuluga, C. Radovici, S. erbanModificarea organosilicatului cu ageni de cuplare silanici pentru nanocompozite polimerice..........................................................305Adriana Popa, Viorica Prvulescu, Nicoleta Pleu, Smaranda Iliescu, C. M. DavidescuSinteza unor copolimeri stiren-divinilbenzen grefai cu grupri de tip aminofosfonat..........................................................................310B. Cursaru, P. Stanescu, M. TeodorescuProprietile la compresie ale hidrogelilor sintetizai din etilen glicoli cu margini diepoxidice, i poliamine alifatice......................314Celina-Maria Petrea, Corina Andronescu, Andreea Mdlina Pandele, Sorina Alexandra Grea, H. IovuCaracterizarea nanotuburilor de carbon modificate cu composite epoxidice......................................................................................320N. TudorachiSinteza i comportarea la umflare a unor hidrogeluri reticulatepoli(alcool vinilic)-acrilamid......................................................................................................................................................................326Loredana Deleanu, I. G. Brsan, G. Andrei, Minodora Rp, N. DiaconuCompozite PTFE i lubrifierea cu ap. II. Caracterizarea suprafeelor ...................................................................................................332C. N. Cacaval, Alice MijaTermoseturi epoxizi lichid cristalini.............................................................................................................................................................339t. Oprea, Veronica OpreaProprietile elastomerilor poliuretanici obinui cu diferite materiale de umplutur n caten...........................................................345I. Ciuc, M. M. Stnescu, D. Bolcu, A. Motomancea, M. BuuDeterminarea rezistenei la rupere pentru plci composite cu distribuie aleatoare a ranforsantului.........................................351C. Hamciuc, Elena Hamciuc, S. Vlad, M. OlariuBloc-copolimeri fluorurai care conin cicluri imidice i 1,3,4-oxadiazolice...........................................................................................356Cristina Borun, Brndua Ghiban, Liliana Sandu, N. Faur, N. Ghiban, A. CernescuInvestigaii structurale asupra comportrii mecanice a dou rini acrililce dentare...........................................................................362I. Curtu, Dana Luca MotocComparaii teoretico-experimentale ale coeficienilor elastici ai materialelorcomposite polimerice multifaz la solicitri de traciune, compresiune i ncovoiere. Factori de Influen......................................366Lcrmioara Ochiuz, Gabriela Lisa, C. Grigora, Mihaela Avdanei, Eliza GafitanuStabilitatea termic a alendronatului de sodiu n amestec cu polimeri reticulaiai acidului acrilic i chitozan........................................................................................................................................................................372Gh. Amza, D. Drobot, A. Semenescu, D. IanculuiCercetri privind influena energiei ultrasonice asupra rezistenei la extracie a inserieimetalice dintr-o matrice de cauciuc ..........................................................................................................................................................377V. Todic, D. Lukic, M. Stevic, M. MilosevicSistem integrat CAPP pentru fabricarea formelor de injecie pentru materiale plastice.......................................................................381O. Neme, F. Lachaud, A. Mojtabi, M. Borzan, t. GrigoraAnaliza n condiii de stres a asamblrilor cilindrice lipite realizate din materiale hibride...................................................................390S. PopInfluena lungimii alungitorului de lan i a coninutului de diisocianat asuprastabilitii termice i a proprietilor mecanice a unor poliuretani..........................................................................................................394A. O. Trufau, Cristina Laudoniu(Burghelea), Cristina Liliana Anastasia TrufauSticl optic organic; know-how pentru lustruirea suprafeelor............................................................................................................398I. SavaPolimeri fotosensibili care conin grupe pendante de azobenzen...........................................................................................................404Edina Rusen, B. Mrculescu, Izabela Stancu, C. Grigora, D. S. VasilescuTransformrile chimice ale copolimerilor obinui din diciclopentadien..............................................................................................409Sorina Alexandra Grea, Floriana Constantin, Georgeta Voicu, H. IovuNoi nanocompozite pe baz de rin epoxidic i montmorilonit modificat cu ansambluripoliedrice cu grupri aminice.....................................................................................................................................................................414

CONTENTS

4 Plastic Materials Elastomers Synthetic Yarns and Fibers Composite Materials Synthesis, Characterization, Engineering

D. Donescu, Zina Vuluga, C. Radovici, S. SerbanModification of Organosilicate with Silane Coupling Agents for Polymer Nanocomposites..................................................................305Adriana Popa, Viorica Parvulescu, Nicoleta Plesu, Smaranda Iliescu, C-M. DavidescuSynthesis of Aminophosphonates Grafted on Styrene Divinylbenzene Copolymer................................................................................310B. Cursaru, P. Stanescu, M. TeodorescuCompression Properties of Hydrogels Synthesized from Diepoxy-terminatedPoly(ethylene glycol)s and Aliphatic Polyamines ......................................................................................................................................314Celina-Maria Petrea, Corina Andronescu, Andreea Madalina Pandele, Sorina Alexandra Garea, H. IovuAdvanced Characterization of Modified Carbon Nanotubes Epoxy-based Composites........................................................................320N. TudorachiSynthesis and Swelling Behaviour of Some Crosslinked Poly (vinyl alcohol)-acrylamide Hydrogels .................................................326Lorena Deleanu, I. G. Birsan, G. Andrei, Minodora Rapa, N. DiaconuPTFE Composites and Water Lubrication. II . Surface Characterization .................................................................................................332C. N. Cascaval, Alice MijaLiquid Crystaline Epoxy Thermosets...........................................................................................................................................................339St. Oprea, Veronica OpreaProperties of Polyurethane Elastomers Obtained with Various Chain Extenders...................................................................................345I. Ciuca, M. M. Stanescu, D. Bolcu, A. Motomancea, M. ButuThe Resistance to Fracture Determination for Composite Plateswith Random Distribution of Reinforcement..............................................................................................................................................351C. Hamciuc, Elena Hamciuc, S. Vlad, M. OlariuFluorinated Block Copolymers Containing Imide and 1,3,4-oxadiazole Rings.......................................................................................356Cristina Bortun, Brandusa Ghiban, Liliana Sandu, N. Faur, N. Ghiban, A. CernescuStructural Investigation Concerning Mechanical Behaviour of TwoDental Acrylic Resin......................................................................................................................................................................................362I. Curtu, Dana Luca MotocTheoretical-Experimental Comparisons of Multi-phase Composite MaterialsElastic Coefficients Retrieved from Tensile, Compressive and Bending Tests. Influencing Factors.....................................................366Lacramioara Ochiuz, Gabriela Lisa, C. Grigoras, Mihaela Avadanei, Eliza GafitanuThermal Stability of Sodium Alendronate in a Mixture with Cross-linked AcrilicAcid Polymers and Chitosan.........................................................................................................................................................................372Gh. Amza, D. Drobota, A. Semenescu, D. IanculuiResearches Concerning the Ultrasonic Energy Influence over the Resistance atExtraction of the Metallic Insertion from the Rubber Matrix.....................................................................................................................377V. Todic, D. Lukic, M. Stevic, M. MilosevicIntegrated CAPP System for Plastic Injection Molds Manufacturing........................................................................................................381O. Nemes, F. Lachaud, A. Mojtabi, M. Borzan, St. GrigorasStress Analysis in Adhesive Cylindrical Assemblies made by Hybride Materials....................................................................................390S. VladInfluence of the Chain Extender Length and Diisocyanate Amount on the Thermal Stabilityand Mechanical Properties of Some Polyurethanes...................................................................................................................................394A. O. Trufasu, Cristina Laudoniu(Burghelea), Cristina Liliana Anastasia TrufasuOptical Organic Glass; Know-how to Polish Layers...................................................................................................................................398I. SavaPhoto Sensitive Polymers Containing Pendent Azobenzene Groups.......................................................................................................404Edina Rusen, B. Marculescu, Izabela Stancu, C. Grigoras, D. S. VasilescuChemical Transformations on Copolymers Obtained from Dicyclopentadiene.....................................................................................409Sorina Alexandra Garea, Floriana Constantin, Georgeta Voicu, H. IovuNew Nanocomposites based on Epoxy Resin and MOdified Montmorillonitewith Polyhedral Oligomeric Silsesquioxane-amine Compounds.............................................................................................................414

MATERIALE PLASTICEBucureti-Romnia

Chem. Abs.: MPLAAM 45 (4) (305-420)ISSN 0025 / 5289

Vol. 45, nr. 4, decembrie 2008