Stage 2009

Objectives:

1.The elaboration and investigation of clay suspensions behavior in static conditions
2.The elaboration and investigation of clay suspensions behavior in dynamic conditions
3.The preparation and the characterization of synthetic polymer/Laponite RD systems in aqueous medium

Results:

Based on the results obtained in the stage 2009 of the project, following scientific papers have been written or presented at scientific meetings:
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)

Stage 2010

Objectives:

1.The preparation and the characterization of synthetic polymer/Gelwhite H systems in aqueous medium
2.The preparation and characterization of poly(N-t-butylacrylamide)/clay systems in aqueous medium
3.The preparation and characterization of the hydrogels based on poly(N-t-butylacrylamide) and clay

Results:

Based on the results obtained in the stage 2010 of the project, following scientific papers have been written or presented at scientific meetings:
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)

Stage 2011

Objectives:

1. The preparation and characterization of the chitosan/clay/water gels
2. The determination of the interactions between components in chitosan/water systems in different experimental conditions
3. The interpretation and the capitalization of the results

Results:

Based on the results obtained in the stage 2011 of the project, following scientific papers have been written or presented at scientific meetings:
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, The Journal of Physical Chemistry B, published online: http://pubs.acs.org/toc/jpcbfk/0/0.
4. S. Morariu, M. Bercea, Flow Behavior Of Smectite Aqueous Dispersions, submitted for publication, 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)