Results 11 to 20 of about 2,099,251 (265)

Structure et propriétés mécaniques d'interfaces entre polymères fondus

, 2006
In this thesis, adhesion between uncrosslinked elastomers has been investigated. First, we investigated the mechanisms of establishment and rupture of interfaces between two identical polymers with controlled molecular mass and microstructure. To do that,
Schach, Régis
core   +4 more sources

Statistical and Experimental Analysis of the Mechanical Properties of Flax Fibers

Journal of Natural Fibers, 2022
In this paper, 400 flax fibers with 10 different lengths (40 fibers at each length) are experimentally characterized (quasi-static tensile behavior) and then the results are statistically analyzed. The quasi-static tensile test results appeared to have a
Salah Amroune, Ahmed Belaadi, Mostefa Bourchak, Azzedine Makhlouf, Hamid Satha   +4 more
doaj   +1 more source

One-Dimensional Modelling of Polymer Flood Performance. Analytical and Graphical Solutions Modélisation de l'efficacité du déplacement unidimensionnel par injection de polymères. Solutions analytiques et graphiques

Oil & Gas Science and Technology, 2006
A graphical method for simulating linear polymer flooding is proposed. The method is based upon the analytical solution of Darcy's law and continuity equation which describe the two-phase, one-dimensional, incompressible flow of oil and polymer solution ...
Grattoni C. A., Bidner M. S.
doaj   +1 more source

Les élastomères thermoplastiques (TPE) Structure, propriétés, mise en oeuvre, applications. Synthèse bibliographique. Première partie Thermoplastic Elastomers (Tpe) Structure, Properties, Processing, Applications. Bibliographic Synthesis. Part One

Oil & Gas Science and Technology, 2006
Les élastomères thermoplastiques sont des matériaux relativement nouveaux qui se caractérisent à la fois par une mise en oeuvre rapide analogue à celle des polymères thermoplastiques et par des propriétés intermédiaires entre celles des élastomères ...
Nicaud J.
doaj   +1 more source

C29 Nanogels obtenus par interactions électrostatiques ; Formulation, caractérisations et études de libérations

Journal Africain de Technologie Pharmaceutique et Biopharmacie, 2023
Introduction : Le domaine de la nanoformulation connaît un essor continu depuis l'avènement de vecteurs permettant d'encapsuler des molécules à la fois hydrosolubles, liposolubles et amphiphiles pour la délivrance de médicaments.
Sidy Mouhamed Dieng, Ahmédou Bamba Koueimel Fall, Papa Mady Sy, Alphone Rodrigue Djiboune, Mamadou Niass, Moussa Diop, Louis Augustin Diagua Diouf, Gora Mbaye, Oumar Thioune, Mounibé Diarra   +9 more
doaj   +1 more source

Prediction of Zero Shear Viscosity of Poly (Vinyl Chloride) Plastisols

Applied Rheology, 2006
The rheological behaviour of PVC plastisols composed of a blend of suspension and micro-suspension resins in different proportions was investigated. The present work was mainly focused on the variation of the zero shear viscosity versus the concentration
Lainé Carole, Cassagnau Philippe
doaj   +1 more source

Reducing-End Functionalization of 2,5-Anhydro-d-mannofuranose-Linked Chitooligosaccharides by Dioxyamine: Synthesis and Characterization

Molecules, 2020
The nitrous acid depolymerization of chitosan enables the synthesis of singular chitosan oligosaccharides (COS) since their reducing-end unit is composed of 2,5-anhydro-d-mannofuranose (amf).
Maxence Coudurier, Jimmy Faivre, Agnès Crépet, Catherine Ladavière, Thierry Delair, Christophe Schatz, Stéphane Trombotto   +6 more
doaj   +1 more source

Probing Achiral Benzene‐1,3,5‐tricarboxamide Monomers as Inducers of Homochirality in Supramolecular Helical Catalysts**

ChemistryEurope, 2023
Adding a complementary achiral monomer to polymers embedding a mixture of enantiopure monomers (the “sergeants”) and achiral monomers (the “soldiers”) is expected to decrease the optical purity of the polymer main chain.
Huanjun Kong, Dr. Yan Li, Dr. Ahmad Hammoud, Ludovic Dubreucq, Claire Troufflard, Régina Maruchenko, Dr. Laurent Bouteiller, Dr. Matthieu Raynal   +7 more
doaj   +1 more source

Matériaux polymères et développement durable

, 2010
National audiencePolymer materials and sustainable development the second half of the 20th century, sometimes called "the plastic age", knew a boom of polymer materials in all the sectors of industrial activity.
Borredon, Marie-Elisabeth, Duquesne, Sophie, Pollet, Eric, Leibler, Ludwik, Boutevin, Bernard, Halary, Jean-Louis, Caillol, Sylvain, Soulié-Ziakovic, Corinne, Verney, Vincent, Bunel, Claude, Lecamp, Laurence, Commereuc, Sophie, Tournilhac, Francois, Avérous, Luc, Bourbigot, Serge, Vaca-Garcia, Carlos   +15 more
core   +5 more sources

Vinyl Sulfonate/Vinyl Amide Copolymers and Different Surfactants As Suitable Systems in Eorat Higher Temperatures and Salinities Utilisation de mélanges de copolymères vinyl sulfonate/vinyl amide et de différents tensio-actifs en RAP dans des conditions de fortes salinités et de températures élevées

Oil & Gas Science and Technology, 2006
For enhanced oil recovery flooding processes there will be an increasing demand for polymers having high temperature and electrolyte stability. High molecular weight copolymers based on vinyl sulfonate, vinyl amide, and acryl amide show high performances
Von Halasz S. P.
doaj   +1 more source