The viscosity results suggest that the interactions between the surfactant and the polymer affect both inter polymer polymer association as well as chain expansion. In a previous study on the interactions between hase polymer and nonionic surfactants having the same hydrophobic tail but varying lengths of the hydrophilic head, the authors highlighted the role of the hlb of nonionic surfactant in hydrophobic associations in solution. The interactions between polymers and surfactants in aqueous media give rise to the formation of association structures, thereby modifying the solution and interfacial properties. In a previous study on the interactions between hase polymer and nonionic surfactants. Many studies on polymer surfactant interactions in aqueous solutions have appeared in literature since late 1970. Types of interactions,electrostatic interactions if the polymer and the. Recently, some studies suggest that there is a signi. Obviously, surface energy is not the only factor on which the. Interactions of surfactants with polymers and proteins. Interaction,conclusions,references,feb 16th 2006 polymer surfactant interaction. In order to det ermine the adsorption capacity of surfactant on assam reservoir rock at constant temperature, four different adsorption isothermal models were applied. The nr measurements were made for the isotopic combinations of deuterated surfactant hydrogeneous polymer hydrogeneous perfume and hydrogeneous surfactant hydrogeneous polymer deuterated perfume in null reflecting water, nrw 92 mol% h 2 o8 mol% d 2 o with a scattering length of zero, the same as air. Understanding the interaction between the polymer and mixtures of anionic and zwitterionic surfactants is of great practical interest in formulated cleansing products. Cationic polysaccharides were chosen for this research.
In this supplementary information we present the molecular architectures of the components followed by the parameter set that is used for the scf. Total internal reflection microscopy tirm is used to directly, sensitively, and simultaneously measure colloidal interactions, dynamics, and deposition for a broad range of polymer surfactant compositions. Interaction between polymer and anionicnonionic surfactants and its mechanism of enhanced oil recovery. Modes of association and methods of analysis received second place in the 2003 national printing ink research institute npiri lecture competition. Polymersurfactant interactions and the association behavior. Modifications of the polymer surface aimed at improving cell adhesion and interaction 1 meddocs ebooks published online.
Interaction of hydrophobically modified polymers and. Departures from these conditions reduce the extent of interaction. This chapter describes polymer surfactant reaction in systems comprising an uncharged watersoluble polymer and a charged synthetic surfactant. The interaction of polymer and silica nanoparticles with heavy crude oil to enhanced. Oct, 2008 the behavior of surfactantpolymer interaction was found to be dependent on both surfactant and polymer concentrations. It is reasonable to assume that the interaction between oppositely charged polymer and surfactant should result in a collapse of the electrical double layers of both species.
The organogel thus formed could well be described as a surfactant polymer complex 6062. Polymersurfactant interaction in personal care compositions usually occurs in aqueous media. Surfactant and polymernanoparticle interaction with heavy. A minimum hydrophobic interaction strength combination of hydrophobe length and hydrophobe substitution level is required to produce single phase polysoaplamellar surfactant systems.
Interaction between aqueous solutions of polymer and surfactant and its effect on physicochemical properties. An approximate solution to a mass action model for the binding of surfactants onto polymers has been introduced. Other recent progress has concerned the micellization of an ionic surfactant on a polyelectrolyte chain, the behavior of polymers in the presence of connected. Single molecule study of polymer surfactant interactions dissertation for the award of academic degree o doctor of natural science dr. The presence of an interaction region has been determined from conductivity and surface tension. Hydrophobic interactions between the hydrophobic parts of both the polymer and surfactant. Achieving drag reduction through polymersurfactant interaction by anosh mevawalla a thesis presented to the university of waterloo in fulfillment of the thesis requirement for the degree of master of applied science in chemical engineering waterloo, ontario, canada, 20 anosh mevawalla 20. An increase in the polymer content, increasing ch 2 group in the tail of the cationic surfactant or increasing the bulkiness of the hydrophobic head group of the surfactant favors the adsorption of polymer on the surfacant. The rigidity and compression moduli of membranes increase with increasing polymer concentration and hydrophobe substitution level. Ananthapadmanabhan fundamentals of polymer solutions matthew tirrell uncharged watersoluble polymers and charged surfactant. Alginate is a natural linear polysaccharide extracted from marine brown algae, a copolymer of. Pdf interaction between aqueous solutions of polymer and. Dna interactions with polymers and surfactants wiley.
Supporting information surfactantpolymer interactions. Cabane2 1laboratoire leon brillouin ceacnrs 2pmmh, espci, paris the ability to trigger a strong response with a lowlevel stimulus is one of the remarkable features in soft condensed matter. There would be definite interactions between the negatively charged surfactant and the biopolymer, since gelatin is amphoteric due to the presence of both carboxylic and amino groups. Sodium dodecyl sulfate sds and sodium dodecylbenzene sulfonate sdbs were used as surfactant while polyacrylamide paa, commercial grade partially hydrolyzed polyacrylamide phpa. Viscosity data indicate that the polymer, which contains a high level of hydrophobic cilia groups, exhibits a unique combination of polyelectrolyte and associative properties. Interactions between polymers and surfactants the journal. Manufacturing nanostructures 108 108 4 polymer surfactant interactions and their influence on zinc oxide nanoparticles morphology marta fiedot1, olga rac1, patrycja suchorska wozniak1, iwona karbownik2, helena teterycz1 1wroclaw university of technology, faculty of microsystem electronics and photonics, ul. Turro, interactions between hydrophobically modified polymers and surfactants. Colloid and polymer science 2018, 296 11, 18791889.
Polymers are found under most conditions to affect notation. To develop a systematic understanding of polymersurfactant interactions from any of the above perspectives, it is necessary to consider structural models of polymersurfactant aggregates that may form in aqueous solutions. Measured colloidsubstrate interaction potentials and deposition behavior show. The polymer forms hydrophobic junctions with the surfactant micelles, giving rise to a diversity of polymer surfactant mesophases. Composition of the polymer surfactant mixture was varied on a 96 well plate and screened with a surface tension analyzer, delta8. Surfactantmediated modulation of hydrophobic interactions in. The goal of the proposed research is to use the interaction between a surfactant and a polymer for efficient displacement of tertiary oil by improving slug integrity. Interaction between aqueous solutions of polymer and surfactant. The interaction parameters for na, cl, a and b ions are all taken similarly, ignoring ion speci c e ects. Asiapacific journal of chemical engineering 2008, 3 5, 579585. A mixture comprising a pseudo oil with appropriate surfactant and polymer has been selected to study micellarpolymer chemical flooding. The width of such a region depends on the amount of polymer in the mixture,temperature, surfactant content and added electrolyte nacl.
Effects of polymer, surfactant and solution properties by lisa renee huisinga december 2008 the intent of this research is to explore and understand the effects that a range of. Here, we evaluated a combination of polymer and surfactant aqueous solutions, in order to generate a working fluid capable of achieving highperformance enhanced oil recovery eor. Manipulating perfume delivery to the interface using polymer. A core use of these materials is in mixtures with surfactants, where a combination of hydrophobic and electrostatic interactions drives unique solution behavior and structure formation. Then we survey the literature on the interaction of nonionic polymers with surfactants, and the interaction of polyelectrolytes with ionic surfactants of opposite charge. Unusual rheological properties 1 which result from the associa tion of hydrophobic groups are the main attractive feature of these polymers. Endfunctionalized statistical random copolymers of styrene and methylmethacrylate were synthesized, with the styrene fraction f varying from 0 to 1, and were endgrafted onto silicon substrates to create random. A deposition state diagram containing comprehensive information about particle interactions, trajectories, and deposition behavior is obtained for polymer surfactant.
Many studies on polymer surfactant interaction on solid surfaces, was frequently found possible to obtain elevated uptake of one or other of the components. Also depending on the ionic natures of the polymer and surfactant they can precipitate, and in some cases the precipitate thus formed can dissolve upon increasing the surfactant concentration. Pdf polymer surfactant interactions semantic scholar. The interaction of polymer and silica nanoparticles with heavy crude oil to enhanced properties which are responsible for higher oil recovery was also studied. Otsuka and esumi 12, dealing with a coadsorption study, shows a remarkable increase in uptake of pvp on alumina in the presence of lids. When surfactant molecules are mixed with a solution of polymer molecules, surfactants and polymer may interact due to electrostatic, hydrophobic, hydrogen bonding or various entropic effects, in turn altering the ability of micelles to solubilize hydrophobic molecules 14. The morphologies of association complexes depend on the molecular properties of the polymer and the surfactant. Achieving drag reduction through polymersurfactant. Effects of surfactant architecture and system parameters journal of rheology 50, 831 2006. Then we survey the literature on the interaction of nonionic polymers. Structural effects of cationic surfactants in polyacrylamide. Polymersurfactant interactionits relevance to detergent. In order to understand the concepts of this type of polymersurfactant interaction, it is first necessary to grasp how typical polymers behave in solution. The study of polymersurfactant interaction in catanionic.
Complex fluids containing polymers, surfactants, and colloidal components are ubiquitous in natural and synthetic materials. Surface methodsespecially surface tension measurements have long been used in the study of interaction between water soluble polymers and surfactants. Feb 16th 2006 polymer surfactant interaction polymer surfactant interaction types of interactions. Achieving drag reduction through polymersurfactant interaction. Effect of added brine on polymersurfactant interaction. Polymersurfactant interaction scientific spectator.
Effect of polymer molecular weight on the polymersurfactant. Sodium dodecyl sulphate sds, an anionic surfactant is reported to exhibit a variety of structural transitions in aqueous medium on addition of simple salts hugonin and co workers, 2008. A mixture comprising a pseudo oil with appropriate surfactant and polymer has been selected to study micellar polymer chemical flooding. The interaction between polymers and surfactants has been a topic of study due to their various applications, though for this purpose, a better understanding of these interactions and the ability. A simple technique for precisely controlling the interfacial energies and wetting behavior of polymers in contact with solid surfaces is described. Hydrophobic interactions in associative polymernonionic surfactant systems. The integrity of the surfactant slug is critical to the economic success of a surfactant polymer flood. Whereas mixed solutions of a homopolymer and a surfactant show interesting analogies with mixed polymer solutions, it has been demonstrated recently that mixtures of hydrophobically modified watersoluble polymers and surfactants show analogies with mixed surfactant systems. The interaction of sodium dodecylsulfate with hydroxypropyl.
Surfactant polymer flooding is the only method to unlock this vast resource. Microencapsulation of oil by polymer mixtureionic surfactant interaction induced coacervation. The interactions between polymers and surfactants in aqueous media give rise to the formation of association structures, thereby modifying the solution and. It was shown that interactions in mixed surfactant systems can be studied through surface tension. Surfactants and polymers are two of the important components in detergent formulations.
Because most watersoluble polymeric rheology modifiers are employed in formulations containing surfactants or other amphiphilic species, polymer amphiphile interactions are of considerable technological and theoretical interest. Cationic surfactants, adsorption of polymers, micellisation, dodecyltrimethyl ammonium bromide. Studies with a number of surfactants show that polymer surfactant interaction is most favorable a the longer the hydrocarbon chain of the surfactant, b the straighter the chain, and c when the head group is terminal to the chain. It allows determining the width of the interaction. Surfactants surface active agents are amphipathic molecules have a hydrophilic. The observed behaviour was explained in terms of the combined effects played by. Polymersurfactant interactions and the association behavior of. Polymer surfactant interactions in flotation are studied here for quartz, which along with clay is present in coal, oil shale etc. It is shown that the polymer surfactant junctions are stable but may be disrupted at high shear. Next, aspects of the interaction phenomena that appear to have relevance to detergent formulation are presented.
University of groningen polymersurfactant interactions. In this recovery process, surfactant is added to the water. As may be imagined, such interaction frequently involves a substantial change in the conformation of the protein macromolecule. More generally, the above results demonstrate the fea. Indeed, this aspect is of recognized importance insofar as the properties of natural polymersurfactant complexes, viz. Synergistic polymersurfactantcomplex mediated colloidal. Purdue epubs the summer undergraduate research fellowship. Systems containing a natural polymer and metal ions in the presence or the absence of oppositely charged surfactants are considered with respect to interactions and phase behavior. Surfactant polymer interaction for improved oil recovery. Polymersurfactant interactions and the association. Polymer surfactant interactions and their influence on. Surfactants,surfactants surface active agents are,amphipathic molecules have a hydrophilic.
Polyelectrolytes are an important class of polymeric materials and are increasingly used in complex industrial formulations. Intermolecular interactions in polyelectrolyte and surfactant. Interaction between watersoluble polymers and anionic surfactants has been studied by surface tension and conductivity measurements. The interaction between an uncharged polymer and an uncharged surfactant is generally considered also to be very weak e. Hase polymers in solutions containing nonionic surfactants.
You are advised to consult the publishers version publishers pdf if you wish to cite from it. Hydrophobically modified celluloses have been studied in the past to a lim ited extent. Hydrophobic interactions in associative polymernonionic. Advanced oil recovery techniques, beyond primary and secondary recovery, are required in order to produce additional oil in existing reservoir rock. Polymer surfactant and protein surfactant interactions. Jones illustrated the elegant simplicity of the surface tension method when applied to a mixture of a highly surface active species, the surfactant, and a feebly surface active species, the polymer. Controlling polymersurface interactions with random. The values of the surface parameters were discussed according to the type of interaction between the cationic surfactant and type of polymer studied. Next, aspects of the interaction phenomena that appear to have relevance to detergent. To develop a systematic understanding of polymer surfactant interactions from any of the above perspectives, it is necessary to consider structural models of polymer surfactant aggregates that may form in aqueous solutions. Moreover, the number of surfactant molecules bound to polymer hydrophobes at the viscosity maximum is the same for both polymer concentrations. Feb 16th 2006 polymer surfactant interaction, polymer surfactant interaction. Single molecule study of polymersurfactant interactions. Modifications of the polymer surface aimed at improving.
The viscosity trend of the polymer np8 surfactant systems with increasing surfactant concentration does not change upon increasing polymer concentration from 0. Feb 16th 2006 polymersurfactant interaction polymers polymers are long chain giant molecules assembled from smaller units monomers. Electrostatic interactions if the polymer and the surfactant are oppositely charged. It has been found, however, that some polymer surfaces have similar free surface energy and different chemical nature 3. Polymers free fulltext intermolecular interactions in. Polymers and surfactants are common ingredients in many products, including paints, inks, cosmetics, adhesives and detergent formulations.
A polymermicelle model was established by cabane to explain the interaction between the surfactant and the polymer, and it was revised by jiang and hanto who developed a new viscosity equation that describes the dependence of dilute solution viscosity on polymer concentration in aqueous solution. For more information, samples and starting formulations, visit. Hydrophobically modified associative polymer solutions. Surfactantmediated modulation of hydrophobic interactions. Pdf microencapsulation of oil by polymer mixtureionic.
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