Etapa 2009

Obiective:

1.Elaborarea si investigarea comportarii suspensiilor de argila la repaos
2.Elaborarea si investigarea comportarii suspensiilor de argila in diferite conditii de curgere
3.Obtinerea si caracterizarea sistemelor polimer sintetic/Laponit RD in mediu apos

Rezultate:

Pe baza rezultatelor obtinute in cadrul etapei 2009, urmatoarele lucrari stiintifice au fost elaborate sau prezentate la manifestari stiintifice:
1. S. Morariu, I.E. Lamatic, M. Bercea, Rheological behavior of smectite aqueous dispersions, Revue Roumaine de Chimie, 54(11-12), 975-980 (2009).
2. S. Morariu, C.E. Brunchi, L. Ghimici, M. Bercea, Viscometric behavior of polymer solutions, capitol în Functional polymeric materials designed for high tech applications, Editor M. Nechifor, SIGNPOST, India, ISBN: 978-81-7895-448-6, 85-107 (2010).
3. I.E. Lamatic, M. Bercea, S. Morariu, Intrinsic viscosity of aqueous poly(vinyl alcohol) solutions, Revue Roumaine de Chimie, 54(11-12), 981-986 (2009).
4. M. Bercea, S. Morariu, C.E. Brunchi, Rheological investigation of thermal induced gelation of poly(acrylonitrile) solutions, International Journal of Thermophysics, 30, 1411-1422 (2009).
5. S. Morariu, Rheology of clay dispersions containing polymers, New Trends in Complex Fluids Modeling, CFM 2009 Proceedings, Editori C. Balan, D. Broboana, R. Kadar, C.M. Balan, ISSN: 2066-5790, 30-32 (2009).
6. S. Morariu, Rheology of clay dispersions containing polymers, New Trends in Complex Fluids Modeling, Bran, Romania, 18-21 iunie, 2009 (conferinta)
7. M. Bercea, Physical gelation of polymer solution, New Trends in Complex Fluids Modeling, 18-21 iunie, Bran, Romania, 2009 (conferinta)
8. S. Morariu, M. Bercea, Static and dynamic behavior of clay dispersions, Iasi Academic Days "Progress in organic and polymer chemistry" XXIInd edition, 8-10 October, Iasi, Romania 2009 (conferinta)
9. S. Morariu, M. Bercea, L. Nita, A. Chiriac, Dynamic and static properties of the clay aqueous dispersions in the presence/absence of the polymer, Annual European Rheology Conference, AERC 2009, 15-17 April 2009, Cardiff, Wales, Anglia (poster)
10. S. Morariu, I.E. Lamatic, M. Bercea, Effect of poly(ethylene glycol) on the flow properties of smectite aqueous dispersions, Second Cristofor I. Simionescu Symposium, Frontiers in Macromolecular and Supramolecular Science, 2-3 June 2009, Iasi, Romania (poster)
11. S. Morariu, M. Bercea, L Nita, A. Chiriac, Effect of polymer addition on the dynamic behaviour of Laponite RD aqueous dispersions, Rheology Workshop, 22 September 2009, Iasi, Romania (poster)
12. I.E. Lamatic, S. Morariu, M. Bercea, Dynamic and static behavior of smectite dispersions, New Trends in Complex Fluids Modeling, 18-21 iunie, Bran, Romania 2009 (poster)
13. I.E. Lamatic, M. Bercea, S. Morariu, Aggregation of poly(ethylene glycol) in solution, Iasi Academic Days "Progress in organic and polymer chemistry" XXIInd edition, 8-10 October, Iasi, Romania 2009 (poster)

Etapa 2010

Obiective:

1. Obtinerea si caracterizarea sistemelor polimer sintetic/Gelwhite H in mediu apos;
2. Prepararea si caracterizarea sistemelor poli(N-t-butilacrilamida)/ argila in mediu apos;
3. Obtinerea si caracterizarea hidrogelurilor pe baza de poli(N-t-butilacrilamida) si argila.

Rezultate:

Pe baza rezultatelor obtinute in cadrul etapei 2010, urmatoarele lucrari stiintifice au fost elaborate sau prezentate la manifestari stiintifice:
1. C.-E. Brunchi, M. Bercea, S. Morariu, Hydrodynamic Properties of Polymer Mixtures in Solution, J. Chem. Eng. Data, 55, 4399–4405, 2010.
2. M. Bercea, S. Morariu, C.-E. Brunchi, M. Cazacu, Capitolul Solution Behavior of Polysiloxanes în Recent Developments in Silicone-Based Materials, Editor M. Cazacu, Nova Publishers, Seria Materials Science and Technologies, pp. 36-78, ISBN: 978-1-61668-624-6, publicat în 2010 (https://www.novapublishers.com/catalog/product_info.php?products_id=13288)
3. C.-E. Brunchi, S. Morariu, M. Cazacu, M. Bercea, Influence of the Solvent Quality on the Thermodynamic Behavior of Polymethylphenylsiloxane Solutions, Ind. Eng. Chem. Res. 49 (24), 12740–12746, 2010.
4. M. Bercea, S. Morariu, Rheology of Poly(vinyl alcohol)/Water Systems, Proceedings Polymeric Materials 2010, Halle, 15-17 septembrie 2010, ISBN 978-3-86829-282-4
5. C.E. Brunchi, M. Bercea, S. Morariu, Evaluation of the Intrinsic Viscosity for Different Polymer Systems, Proceedings Polymeric Materials 2010, Halle, 15-17 septembrie 2010, ISBN 978-3-86829-282-4
6. S. Morariu, M. Bercea, Effect of Polymer on the Flow Properties of Smectite Aqueous Dispersions, Proceedings Polymeric Materials 2010, Halle, 15-17 septembrie 2010, ISBN 978-3-86829-282-4
7. S. Morariu, C.-E. Brunchi, M. Bercea, Reologia Sistemelor Polimere la Tranzitia Sol-Gel, The XXXI-st Romanian Chemistry Conference, 6-8 octombrie Ramnicu Valcea, 2010 (comunicare)
8. S. Morariu, M. Bercea, Effect of Polymer on the Flow Properties of Smectite Aqueous Dispersions, "PolymericMaterials P.2010" Halle (Saale), September 15 – 17, 2010 (poster)
9. S. Morariu, M. Bercea, Rheology of Poly(ethylene oxide) in Aqueous Solutions, "PolymericMaterials P.2010" Halle (Saale), September 15 – 17, 2010 (poster)
10. M. Bercea, S. Morariu, Rheology of Poly(vinyl alcohol)/water systems, "PolymericMaterials P.2010" Halle (Saale), September 15 – 17, 2010 (poster)
11. C.E. Brunchi, M. Bercea, S. Morariu, Evaluation of the Intrinsic Viscosity for Different Polymer Systems, "PolymericMaterials P.2010" Halle (Saale), September 15 – 17, 2010 (poster)
12. C.E. Brunchi, S. Morariu, M. Bercea, Theoretical and Experimental Evaluation of the Viscosity of Polymer Solutions, The 18th Conference on Applied and Industrial Mathematics, 14-17 octombrie, Iasi , 2010 (poster)
13. S. Morariu, C.E. Brunchi, M. Bercea, Rheological Models for Smectite Aqueous Dispersions, The 18th Conference on Applied and Industrial Mathematics, 14-17 octombrie, Iasi , 2010 (poster)

Etapa 2011

Obiective:

1. Prepararea si caracterizarea gelurilor polimere de tipul chitosan/argila/apa
2. Elucidarea interactiunilor care apar in sistemele chitosan/apa in diferite conditii experimentale
3. Interpretarea si valorificarea rezultatelor

Rezultate:

Pe baza rezultatelor obtinute in cadrul etapei 2011, urmatoarele lucrari stiintifice au fost elaborate sau prezentate la manifestari stiintifice:
1. S. Morariu, C.-E. Brunchi, C. Hulubei, M. Bercea, Influence of Temperature on the Rheological Behavior of Polymer Mixtures in Solution, Ind. Eng. Chem. Res., 50, 9451-9455, 2011.
2. S. Morariu, C.- E. Brunchi, M. Cazacu, M. Bercea, The Behavior of Poly(dimethylsiloxane-co-diphenylsiloxane)s in Good and Theta Solvents, J. Chem. Eng. Data, 56,1468–1475, 2011.
3. S. Morariu, M. Bercea, Effect of Temperature and Aging Time on the Rheological Behavior of Aqueous Poly(ethylene glycol) - Laponite RD Dispersions, la The Journal of Physical Chemistry B, publicata online:http://pubs.acs.org/toc/jpcbfk/0/0.
4. S. Morariu, M. Bercea, Flow Behavior Of Smectite Aqueous Dispersions, trimisa spre publicare la Clays and Clay Minerals, 2011
5. S. Morariu, M. Bercea, Clustering in Poly(Oxyethylene) Aqueous Solutions, Rev. Roum. Chem., 56(5), 545-551, 2011.
6. S Morariu, Gelation of laponite dispersions in presence of poly(ethylene oxide), Proceedings Conference Dynamics of Complex Fluids, May 5-7, 2011, Iasi, Romania, pag 115-120, ISBN 978-973-702-849-5
7. C.E. Brunchi, Evaluation Of The Viscosity Of Polymer Solutions By Using Classical And New Approaches, Proceedings Conference Dynamics of Complex Fluids, May 5-7, 2011, Iasi, Romania, pag 177-184, ISBN 978-973-702-849-5
8. S. Morariu, M. Bercea, Comportement rheologique des dispersions de Laponite RD en presence des polymeres, Conference Proceedings Xeme Colloque Franco-Roumain sur les Polymeres, Polymeres et Materiaux Avances : Developpement Durable et Performances, 6-8 Septembre, 2011, Douai, Franta, pag. 190-193
9. S. Morariu, M. Bercea, Comportement rheologique des dispersions de Laponite RD en presence de polymeres, Conference Proceedings Xeme Colloque Franco-Roumain sur les Polymeres, Polymeres et Materiaux Avances : Developpement Durable et Performances, 6-8 Septembre, 2011, Douai, Franta (poster)
10. S. Morariu, C.-E. Brunchi, M. Cazacu, M. Bercea, Comportement thermodynamique de copolymeres siloxaniques, Conference Proceedings Xeme Colloque Franco-Roumain sur les Polymeres, Polymeres et Materiaux Avances : Developpement Durable et Performances, 6-8 Septembre, 2011, Douai, Franta (poster)
11. S. Morariu, M. Bercea, Gelation of Laponite Dispersions in Presence of Poly(Ethylene Oxide), Conference Dynamics of Complex Fluids, May 5-7, 2011, Iasi, Romania (poster)