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Makarova AL, Kwiatkowski AL, Kuklin AI, Chesnokov YM, Philippova OE, Shibaev AV. Dual Semi-Interpenetrating Networks of Water-Soluble Macromolecules and Supramolecular Polymer-like Chains: The Role of Component Interactions. Polymers (Basel) 2024; 16:1430. [PMID: 38794623 PMCID: PMC11125886 DOI: 10.3390/polym16101430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/06/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Dual networks formed by entangled polymer chains and wormlike surfactant micelles have attracted increasing interest in their application as thickeners in various fields since they combine the advantages of both polymer- and surfactant-based fluids. In particular, such polymer-surfactant mixtures are of great interest as novel hydraulic fracturing fluids with enhanced properties. In this study, we demonstrated the effect of the chemical composition of an uncharged polymer poly(vinyl alcohol) (PVA) and pH on the rheological properties and structure of its mixtures with a cationic surfactant erucyl bis(hydroxyethyl)methylammonium chloride already exploited in fracturing operations. Using a combination of several complementary techniques (rheometry, cryo-transmission electron microscopy, small-angle neutron scattering, and nuclear magnetic resonance spectroscopy), we showed that a small number of residual acetate groups (2-12.7 mol%) in PVA could significantly reduce the viscosity of the mixed system. This result was attributed to the incorporation of acetate groups in the corona of the micellar aggregates, decreasing the molecular packing parameter and thereby inducing the shortening of worm-like micelles. When these groups are removed by hydrolysis at a pH higher than 7, viscosity increases by five orders of magnitude due to the growth of worm-like micelles in length. The findings of this study create pathways for the development of dual semi-interpenetrating polymer-micellar networks, which are highly desired by the petroleum industry.
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Affiliation(s)
- Anna L. Makarova
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.M.); (O.E.P.)
| | - Alexander L. Kwiatkowski
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.M.); (O.E.P.)
| | | | - Yuri M. Chesnokov
- National Research Center, Kurchatov Institute, 123182 Moscow, Russia;
| | - Olga E. Philippova
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.M.); (O.E.P.)
| | - Andrey V. Shibaev
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.M.); (O.E.P.)
- Chemistry Department, Karaganda E.A. Buketov University, University Street 28, Karaganda 100028, Kazakhstan
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2
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Vishnevetskii DV, Mekhtiev AR, Averkin DV, Polyakova EE. Cysteine-Silver-Polymer Systems for the Preparation of Hydrogels and Films with Potential Applications in Regenerative Medicine. Gels 2023; 9:924. [PMID: 38131910 PMCID: PMC10742544 DOI: 10.3390/gels9120924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 12/23/2023] Open
Abstract
Herein, the problem concerning the poorer mechanical properties of gels based on low molecular weight gelators (LMWGs)-L-cysteine and silver nitrate-was solved by the addition of various polymers-polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polyethylene glycol (PEG)-to the initial cysteine-silver sol (CSS). The physicochemical methods of analysis-viscosimetry, UV spectroscopy, DLS, and SEM-identified that cysteine-silver hydrogels (CSG) based on PVA possess the best rheological properties and porous microstructure (the average pore size is 2-10 µm) compared to gels without the polymer or with PVP or PEG. Such gels are able to form cysteine-silver cryogels (CSC) and then porous cysteine-silver films (CSF) with an average pore size of 10-20 µm and good mechanical, swelling, and adhesion to skin characteristics as long as the structure of CSS particles remains stable. In vitro experiments have shown that hydrogels are non-toxic to normal human fibroblast cells. The obtained materials could potentially be applied to regenerative medicine.
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Affiliation(s)
- Dmitry V. Vishnevetskii
- Department of Physical Chemistry, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia;
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Str., Moscow 191121, Russia
| | - Arif R. Mekhtiev
- Institute of Biomedical Chemistry, 10 Building 8, Pogodinskaya Str., Moscow 191121, Russia
| | - Dmitry V. Averkin
- Russian Metrological Institute of Technical Physics and Radio Engineering, Worker’s Settlement Mendeleevo, Building 11, Moscow 141570, Russia;
| | - Elizaveta E. Polyakova
- Department of Physical Chemistry, Tver State University, Building 33, Zhelyabova Str., Tver 170100, Russia;
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Shibaev AV, Ospennikov AS, Kuznetsova EK, Kuklin AI, Aliev TM, Novikov VV, Philippova OE. Universal Character of Breaking of Wormlike Surfactant Micelles by Additives of Different Hydrophobicity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4445. [PMID: 36558298 PMCID: PMC9781539 DOI: 10.3390/nano12244445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/30/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Wormlike surfactant micelles are widely used in various applications including fracturing technology in oil industry, template synthesis of different nanoobjects, micellar copolymerization of hydrophilic and hydrophobic monomers, and so forth. Most of those applications suggest the solubilization of different additives in the micelles. The present paper is aimed at the comparative study of the effect of the solubilization of hydrophobic (n-decane and 1-phenylhexane) and hydrophilic (N-isopropylacrylamide and acrylamide) substances on the rheological properties and structure of the micelles using several complementary techniques including rheometry, small angle neutron scattering, dynamic light scattering, and diffusion ordered NMR spectroscopy. For these studies, mixed micelles of potassium oleate and n-octyltrimethylammonium bromide containing the excess of either anionic or cationic surfactants were used. It was shown that hydrophobic additives are completely solubilized inside the micelles being localized deep in the core (n-decane, 1-phenylhexane) or near the core/corona interface (1-phenylhexane). At the same time, only a small fraction of hydrophilic additives (14% of N-isopropylacrylamide and 4% of acrylamide) penetrate the micelles being localized at the corona area. Despite different localization of the additives inside the micelles, all of them induce the breaking of wormlike micelles with the formation of either ellipsoidal microemulsion droplets (in the case of hydrophobic additives) or ellipsoidal surfactant micelles (in the case of hydrophilic additives). The breaking of micelles results in the drop of viscosity of the solution up to water value. The main result of this paper consists in the observation of the fact that for all the additives under study, the dependences of the viscosity on the volume fraction of additive lie on the same master curve being shifted along the volume fraction axis by a certain factor depending on the hydrophobicity of the added species. Those data are quite useful for various applications of wormlike surfactant micelles suggesting the solubilization of different additives inside them.
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Affiliation(s)
| | | | | | - Alexander I. Kuklin
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia
| | - Teimur M. Aliev
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 119991 Moscow, Russia
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4
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Gradzielski M. Polymer-Surfactant Interaction for Controlling the Rheological Properties of Aqueous Surfactant Solutions. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Glukhova SA, Molchanov VS, Chesnokov YM, Lokshin BV, Kharitonova EP, Philippova OE. Green nanocomposite gels based on binary network of sodium alginate and percolating halloysite clay nanotubes for 3D printing. Carbohydr Polym 2022; 282:119106. [DOI: 10.1016/j.carbpol.2022.119106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 12/27/2021] [Accepted: 01/04/2022] [Indexed: 12/16/2022]
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Zhao J, Chu T, Hu Q, Lei Y, Liu L, Zhang G, Gao C, Zhang T, Song W. The preparation of hydroxyapatite nanowires and nanorods via aliphatic micelles as soft templates. CrystEngComm 2022. [DOI: 10.1039/d2ce00220e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyapatite nanoparticles were tunably synthesized via the use of an aliphatic–ethanol–water three-phase mixture system using micelles as soft templates via an emulsion–hydrothermal synergistic method.
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Affiliation(s)
- Junhua Zhao
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Tao Chu
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Qin Hu
- Institute of ZheJiang University-Quzhou, Quzhou 324000, Zhejiang, China
| | - Yinlin Lei
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Liu Liu
- Institute of ZheJiang University-Quzhou, Quzhou 324000, Zhejiang, China
| | - Gongjun Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Chuanhua Gao
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Tianqi Zhang
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, Zhejiang, China
| | - Weijie Song
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
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Shibaev AV, Osiptsov AA, Philippova OE. Novel Trends in the Development of Surfactant-Based Hydraulic Fracturing Fluids: A Review. Gels 2021; 7:258. [PMID: 34940318 PMCID: PMC8701209 DOI: 10.3390/gels7040258] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 12/04/2022] Open
Abstract
Viscoelastic surfactants (VES) are amphiphilic molecules which self-assemble into long polymer-like aggregates-wormlike micelles. Such micellar chains form an entangled network, imparting high viscosity and viscoelasticity to aqueous solutions. VES are currently attracting great attention as the main components of clean hydraulic fracturing fluids used for enhanced oil recovery (EOR). Fracturing fluids consist of proppant particles suspended in a viscoelastic medium. They are pumped into a wellbore under high pressure to create fractures, through which the oil can flow into the well. Polymer gels have been used most often for fracturing operations; however, VES solutions are advantageous as they usually require no breakers other than reservoir hydrocarbons to be cleaned from the well. Many attempts have recently been made to improve the viscoelastic properties, temperature, and salt resistance of VES fluids to make them a cost-effective alternative to polymer gels. This review aims at describing the novel concepts and advancements in the fundamental science of VES-based fracturing fluids reported in the last few years, which have not yet been widely industrially implemented, but are significant for prospective future applications. Recent achievements, reviewed in this paper, include the use of oligomeric surfactants, surfactant mixtures, hybrid nanoparticle/VES, or polymer/VES fluids. The advantages and limitations of the different VES fluids are discussed. The fundamental reasons for the different ways of improvement of VES performance for fracturing are described.
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Affiliation(s)
| | - Andrei A. Osiptsov
- Skolkovo Institute of Science and Technology (Skoltech), 121205 Moscow, Russia;
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Dual Transient Networks of Polymer and Micellar Chains: Structure and Viscoelastic Synergy. Polymers (Basel) 2021; 13:polym13234255. [PMID: 34883758 PMCID: PMC8659570 DOI: 10.3390/polym13234255] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 11/30/2021] [Indexed: 02/04/2023] Open
Abstract
Dual transient networks were prepared by mixing highly charged long wormlike micelles of surfactants with polysaccharide chains of hydroxypropyl guar above the entanglement concentration for each of the components. The wormlike micelles were composed of two oppositely charged surfactants potassium oleate and n-octyltrimethylammonium bromide with a large excess of anionic surfactant. The system is macroscopically homogeneous over a wide range of polymer and surfactant concentrations, which is attributed to a stabilizing effect of surfactants counterions that try to occupy as much volume as possible in order to gain in translational entropy. At the same time, by small-angle neutron scattering (SANS) combined with ultrasmall-angle neutron scattering (USANS), a microphase separation with the formation of polymer-rich and surfactant-rich domains was detected. Rheological studies in the linear viscoelastic regime revealed a synergistic 180-fold enhancement of viscosity and 65-fold increase of the longest relaxation time in comparison with the individual components. This effect was attributed to the local increase in concentration of both components trying to avoid contact with each other, which makes the micelles longer and increases the number of intermicellar and interpolymer entanglements. The enhanced rheological properties of this novel system based on industrially important polymer hold great potential for applications in personal care products, oil recovery and many other fields.
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Double dynamic hydrogels formed by wormlike surfactant micelles and cross-linked polymer. J Colloid Interface Sci 2021; 611:46-60. [PMID: 34929438 DOI: 10.1016/j.jcis.2021.11.198] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 01/16/2023]
Abstract
HYPOTHESIS Interpenetrating networks consisting of a polymer network with dynamic cross-links and a supramolecular network allow obtaining hydrogels with significantly enhanced mechanical properties. EXPERIMENTS Binary hydrogels composed of a dynamically cross-linked poly(vinyl alcohol) (PVA) network and a transient network of entangled highly charged mixed wormlike micelles (WLMs) of surfactants (potassium oleate and n-octyltrimethylammonium bromide) were prepared and studied by rheometry, SANS, USANS, cryo-TEM, and NMR spectroscopy. FINDINGS Binary hydrogels show significantly enhanced rheological properties (a 3400-fold higher viscosity and 27-fold higher plateau modulus) as compared to their components taken separately. This is due to the microphase separation leading to local concentrating of PVA and WLMs providing larger number of polymer-polymer contacts for cross-linking and longer WLMs with more entanglements. Such materials are very promising for the application in many areas, ranging from enhanced oil recovery to biomedical uses.
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10
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Wang T, Kang W, Yang H, Li Z, Zhu T, Sarsenbekuly B, Gabdullin M. An Advanced Material with Synergistic Viscoelasticity Enhancement of Hydrophobically Associated Water-Soluble Polymer and Surfactant. Macromol Rapid Commun 2021; 42:e2100033. [PMID: 33904224 DOI: 10.1002/marc.202100033] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/31/2021] [Indexed: 11/11/2022]
Abstract
In order to prepare materials with controllable properties, changeable microstructure, and high viscoelasticity solution with low polymer and surfactant concentration, a composite is constituted by adding surfactant (sodium dodecyl sulfate, SDS) to hydrophobically associated water-soluble polymer (abbreviated as PAAC) solution. The viscoelasticity, aggregate microstructure, and interaction mechanism of the composite are investigated by rheometery, Cryo-transmission electron microscopy (Cryo-TEM), and fluorescence spectrum. The results show that when the mass ratio of polymer to surfactant is 15:1, the viscosity of the composite reaches the maximum. The viscosity of the composite system increases hundredfold. The viscosity plateau under dynamic shear is generated. The composite has the properties of high viscoelasticity, strong shear thinning behavior, and good salt tolerance, and temperature resistance. The maximum viscosity of the composite is shown at the salinity of 20000 mg L-1 . In addition, there is no phase separation in the composite with the increase of polymer and surfactant concentration, which indicates the good stability of the system. It is proposed a method to obtain a high viscoelasticity solution by adding surfactants without wormlike micelles to a hydrophobically associated water-soluble polymer solution.
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Affiliation(s)
- Tongyu Wang
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Wanli Kang
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Hongbin Yang
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Zhe Li
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Tongyu Zhu
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Bauyrzhan Sarsenbekuly
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,Kazakh-British Technical University, Almaty, 050000, Kazakhstan
| | - Maratbek Gabdullin
- Key Laboratory of Unconventional Oil & Gas Development, Ministry of Education, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China.,Kazakh-British Technical University, Almaty, 050000, Kazakhstan
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11
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12
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Shibaev AV, Aleshina AL, Arkharova NA, Orekhov AS, Kuklin AI, Philippova OE. Disruption of Cationic/Anionic Viscoelastic Surfactant Micellar Networks by Hydrocarbon as a Basis of Enhanced Fracturing Fluids Clean-Up. NANOMATERIALS 2020; 10:nano10122353. [PMID: 33260867 PMCID: PMC7761115 DOI: 10.3390/nano10122353] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 11/16/2022]
Abstract
Studies of the effects produced by the solubilization of hydrophobic substances by micellar aggregates in water medium are quite important for applications of viscoelastic surfactant solutions for enhanced oil recovery (EOR), especially in hydraulic fracturing technology. The present paper aims at the investigation of the structural transformations produced by the absorption of an aliphatic hydrocarbon (n-decane) by mixed wormlike micelles of cationic (n-octyltrimethylammonium bromide, C8TAB) and anionic (potassium oleate) surfactants enriched by C8TAB. As a result of contact with a small amount (0.5 wt%) of oil, a highly viscoelastic fluid is transformed to a water-like liquid. By small-angle neutron scattering (SANS) combined with cryo-TEM, it was shown that this is due to the transition of long wormlike micelles with elliptical cross-sections to ellipsoidal microemulsion droplets. The non-spherical shape was attributed to partial segregation of longer- and shorter-tail surfactant molecules inside the surfactant monolayer, providing an optimum curvature for both of them. As a result, the long-chain surfactant could preferably be located in the flatter part of the aggregates and the short-chain surfactant—at the ellipsoid edges with higher curvature. It is proven that the transition proceeds via a co-existence of microemulsion droplets and wormlike micelles, and upon the increase of hydrocarbon content, the size and volume fraction of ellipsoidal microemulsion droplets increase. The internal structure of the droplets was revealed by contrast variation SANS, and it was shown that, despite the excess of the cationic surfactant, the radius of surfactant shell is controlled by the anionic surfactant with longer tail. These findings open a way for optimizing the performance of viscoelastic surfactant fluids by regulating both the mechanical properties of the fluids and their clean-up from the fracture induced by contact with hydrocarbons.
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Affiliation(s)
- Andrey V. Shibaev
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.A.); (O.E.P.)
- Correspondence: ; Tel.: +7-495-939-1464
| | - Anna L. Aleshina
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.A.); (O.E.P.)
| | | | - Anton S. Orekhov
- National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia;
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia;
| | - Alexander I. Kuklin
- Moscow Institute of Physics and Technology, 141701 Dolgoprudny, Russia;
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Olga E. Philippova
- Physics Department, Lomonosov Moscow State University, 119991 Moscow, Russia; (A.L.A.); (O.E.P.)
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13
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Rosin-based chiral wormlike Micelles: Rheological behavior and its application in preparing ultrasmall gold nanoparticles. J Colloid Interface Sci 2020; 579:61-70. [PMID: 32570031 DOI: 10.1016/j.jcis.2020.06.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/01/2020] [Accepted: 06/07/2020] [Indexed: 12/15/2022]
Abstract
Innovations in surfactant structures are a feasible way to prepare unique molecular aggregates with interesting properties. Herein, taking dehydroabietic acid as the starting material, a new amine oxide surfactant, abbreviated as R-8-AO, was synthesized. Cryogenic transmission electron microscopy (cryo-TEM) images and circular dichroism (CD) spectra reveal that at suitable concentrations, R-8-AO molecules form rarely discovered right-handed chiral wormlike micelles, which have a cross-sectional diameter of 5-6 nm. The overlap concentration of R-8-AO is approximately 8 mM, above which the wormlike micelles began to entangle in solutions. Due to the strong van der Waals forces between R-8-AO molecules, the scaling law gives an exponent of 7.88, which is higher than the theory predicted value. Gold nanoparticles were synthesized in-situ by irradiating mixed solutions of HAuCl4 and wormlike micelles formed by R-8-AO with UV light. These ultrasmall spherical gold nanoparticles, which are located at the surface of wormlike micelles, have a uniform particle size of 3 ± 1 nm, as observed by TEM. In addition, the gold nanoparticles form a worm-like morphology induced by the wormlike micelles, showing soft-aggregate-directed nanoparticle assembly. This work is first to reveal the effectiveness of preparing ultrasmall gold nanoparticles with new morphological wormlike micelles as soft templates. The resulting organic-inorganic hybrid aggregates are also expected to find applications in catalysis and electronic fields.
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14
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Vishnevetskii DV, Adamyan AN, Ivanova AI, Khizhnyak SD, Pakhomov PM. Influence of polyvinyl alcohol on the rheology and morphology of an l-cysteine-AgNO3 supramolecular system. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2921-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Shibaev AV, Shvets PV, Kessel DE, Kamyshinsky RA, Orekhov AS, Abramchuk SS, Khokhlov AR, Philippova OE. Magnetic-field-assisted synthesis of anisotropic iron oxide particles: Effect of pH. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1230-1241. [PMID: 32874823 PMCID: PMC7445396 DOI: 10.3762/bjnano.11.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
The synthesis of magnetite (Fe3O4) nanorods using reverse co-precipitation of Fe3+ and Fe2+ ions in the presence of a static magnetic field is reported in this work. The phase composition and crystal structure of the synthesized material were investigated using electron diffraction, Raman spectroscopy, and transmission electron microscopy. It was shown that the morphology of the reaction product strongly depends on the amount of OH- ions in the reaction mixture, varying from Fe3O4 nanorods to spherical Fe3O4 nanoparticles. Fe3O4 nanorods were examined using high-resolution transmission electron microscopy proving that they are single-crystalline and do not have any preferred crystallographic orientation along the axis of the rods. According to the data obtained a growth mechanism was proposed for the rods that consists of the dipole-dipole interaction between their building blocks (small hexagonal faceted magnetite nanocrystals), which are formed during the first step of the reaction. The study suggests a facile, green and controllable method for synthesizing anisotropic magnetic nanoparticles in the absence of stabilizers, which is important for further modification of their surfaces and/or incorporation of the nanoparticles into different media.
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Affiliation(s)
- Andrey V Shibaev
- Physics Department, Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russia
| | - Petr V Shvets
- REC “Functional Nanomaterials”, Immanuel Kant Baltic Federal University, A. Nevskogo ul. 14, 236041 Kaliningrad, Russia
| | - Darya E Kessel
- Physics Department, Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russia
| | - Roman A Kamyshinsky
- National Research Centre “Kurchatov Institute,” Akademika Kurchatova pl. 1, 123182 Moscow, Russia
- Moscow Institute of Physics & Technology, Institutskiy per. 9, 141700 Dolgoprudniy, Russia
| | - Anton S Orekhov
- National Research Centre “Kurchatov Institute,” Akademika Kurchatova pl. 1, 123182 Moscow, Russia
- Moscow Institute of Physics & Technology, Institutskiy per. 9, 141700 Dolgoprudniy, Russia
| | - Sergey S Abramchuk
- Physics Department, Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russia
| | - Alexei R Khokhlov
- Institute of Advanced Energy Related Nanomaterials, Ulm University, Albert-Einstein-Allee 11, 89069 Ulm, Germany
| | - Olga E Philippova
- Physics Department, Moscow State University, Leninskie Gory 1-2, 119991 Moscow, Russia
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16
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Opposite effect of salt on branched wormlike surfactant micelles with and without embedded polymer. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113301] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Structure, rheological and responsive properties of a new mixed viscoelastic surfactant system. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124284] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Shibaev AV, Mityuk DY, Muravlev DA, Philippova OE. Viscoelastic Solutions of Wormlike Micelles of a Cationic Surfactant and a Stiff-Chain Anionic Polyelectrolyte. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x19060099] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Philippova OE, Molchanov VS. Enhanced rheological properties and performance of viscoelastic surfactant fluids with embedded nanoparticles. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Sharma H, Dormidontova EE. Polymer-Threaded and Polymer-Wrapped Wormlike Micelle Solutions: Molecular Dynamics Simulations. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00974] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hari Sharma
- Polymer Program, Institute of Materials Science and Physics Department, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Elena E. Dormidontova
- Polymer Program, Institute of Materials Science and Physics Department, University of Connecticut, Storrs, Connecticut 06269, United States
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21
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Kwiatkowski AL, Molchanov VS, Philippova OE. Polymer-like Wormlike Micelles of Ionic Surfactants: Structure and Rheological Properties. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19020081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Vishnevetskii DV, Adamyan AN, Laguseva VS, Ivanova AI, Khizhnyak SD, Pakhomov PM. Self-Organization Processes in Aqueous Solution of Polyvinyl Alcohol, L-Cysteine, and Silver Nitrate. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19010103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Nanostructured hybrid fluids of amphiphilic diblock copolymers and surfactant worm-like micelles complexes. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Different responsiveness to hydrocarbons of linear and branched anionic/cationic-mixed wormlike surfactant micelles. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4428-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Thampi NV, John RP, Ojha K, Nair UG. Effect of Hydrophobic Modification on the Properties of Polymer-Blended Microemulsion Gels. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Neetha V. Thampi
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines); Dhanbad Jharkhand India
| | - Rohith P. John
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines); Dhanbad Jharkhand India
| | - Keka Ojha
- Department of Petroleum Engineering; Indian Institute of Technology (Indian School of Mines); Dhanbad Jharkhand India
| | - Udayabhanu G. Nair
- Department of Applied Chemistry; Indian Institute of Technology (Indian School of Mines); Dhanbad Jharkhand India
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Zhai Z, Yan X, Song Z, Shang S, Rao X. Annular and threadlike wormlike micelles formed by a bio-based surfactant containing an extremely large hydrophobic group. SOFT MATTER 2018; 14:499-507. [PMID: 29303202 DOI: 10.1039/c7sm02163a] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel bio-based anionic surfactant containing a large rigid group and a flexible alkyl chain, namely, sodium N-dodecyl-maleimidepimaric carboxylate (C12-MPA-Na), was synthesized from rosin. The molecular structure of C12-MPA-Na was identified using 1H NMR, FT-IR spectroscopy and MS. Despite containing 36 carbon atoms, C12-MPA-Na showed good water solubility at room temperature. Large spherical aggregates with diameters of 100-200 nm were formed by C12-MPA-Na when its concentration was above 0.1 mM, which was slightly higher than the critical micelle concentration (0.078 mM). Annular wormlike micelles were discovered with increasing C12-MPA-Na concentration, and began to change into extremely long threadlike wormlike micelles when the C12-MPA-Na concentration reached approximately 58 mM. The viscoelastic properties of the wormlike micelle solutions were investigated using steady state and oscillatory shear sweep rheological measurements. The zero-shear viscosity (η0) strongly depended on the concentration of C12-MPA-Na, and the scaling exponent was 34.1. Cryo-TEM confirmed the formation of large spherical aggregates and wormlike micelles. 1H-1H 2D nuclear Overhauser effect spectroscopy (NOESY) was used to detect the molecular interactions of C12-MPA-Na. The results indicated that the alkyl chain of C12-MPA-Na was partially overlapped with its non-planar rigid structure in aqueous solution, and the possible aggregation process for C12-MPA-Na was proposed.
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Affiliation(s)
- Zhaolan Zhai
- Institute of Chemical Industry of Forest Products, CAF, Jiangsu Province, Nanjing 210042, China.
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Shibaev AV, Makarov AV, Kuklin AI, Iliopoulos I, Philippova OE. Role of Charge of Micellar Worms in Modulating Structure and Rheological Properties of Their Mixtures with Nonionic Polymer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02246] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Anton V. Makarov
- Physics
Department, Moscow State University, 119991 Moscow, Russia
| | | | - Ilias Iliopoulos
- PIMM, ENSAM, CNRS,
CNAM, 151 boulevard de l’Hôpital, 75013 Paris, France
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Kwiatkowski AL, Sharma H, Molchanov VS, Orekhov AS, Vasiliev AL, Dormidontova EE, Philippova OE. Wormlike Surfactant Micelles with Embedded Polymer Chains. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01500] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Hari Sharma
- Polymer
Program, Institute of Materials Science and Physics Department, University of Connecticut, Storrs, Connecticut 06269, United States
| | | | - Anton S. Orekhov
- National
Research Centre “Kurchatov Institute”, 123182 Moscow, Russia
| | | | - Elena E. Dormidontova
- Polymer
Program, Institute of Materials Science and Physics Department, University of Connecticut, Storrs, Connecticut 06269, United States
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29
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Larin DE, Govorun EN. Surfactant-Induced Patterns in Polymer Brushes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:8545-8552. [PMID: 28759241 DOI: 10.1021/acs.langmuir.7b01850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The properties of surfaces with grafted macromolecules are determined by a fine structure of the macromolecular layer, whereas the mixtures of macromolecules with surfactants are very rich in structure types. Using the scaling mean-field theory, we consider the self-assembly in polymer brushes into various patterns induced by interactions with low-molecular surfactants. The interaction energies of the parts of a surfactant molecule with the polymer units are assumed to be greatly different. With increasing the grafting density, the formation of lamellae perpendicular to the grafting plane, a continuous layer with oblong or round pores, or a homogeneous brush is predicted. The driving force of the pattern formation is a gain in the interaction energy of surfactant molecules oriented at the lateral surfaces of lamellae or pores. The process of pore formation in a homogeneous brush caused by a temperature change at definite grafting densities is described as the first-order phase transition. It is accompanied by a stepwise extension of the brush and by orientational ordering of surfactant molecules. The transitions between the other patterns are of the second order. The thickness of lamellae and the distance between pores are approximately twice the surfactant molecule size except for the extremely high grafting densities. The diagrams of brush patterns are presented and discussed.
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Affiliation(s)
- Daniil E Larin
- Faculty of Physics, M. V. Lomonosov Moscow State University , Leninskie gory, Moscow, 119991 Russia
| | - Elena N Govorun
- Faculty of Physics, M. V. Lomonosov Moscow State University , Leninskie gory, Moscow, 119991 Russia
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