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Liu Z, Feng Q, Xu Z, Yang S. Research Progress of Molecular Simulation in Acrylamide Polymers with High Degree of Polymerization. Molecules 2024; 29:2589. [PMID: 38893464 PMCID: PMC11174079 DOI: 10.3390/molecules29112589] [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: 04/27/2024] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Acrylamide polymers with a high degree of polymerization are widely used in petroleum production. It is of great significance to study the oil displacement mechanism of acrylamide polymers with a high degree of polymerization from the micro level. In recent years, the rapid development of computer molecular simulation technology has filed the gaps in macroscopic experiments and theories. This technology has been highly valued in the study of the molecular behaviour of polymer systems. In this paper, the research progress of molecular simulation applied to high-polymerization-degree acrylamide polymer is summarized. The application status of acrylamide polymer flooding, the analysis of polymer flooding mechanisms, and the research progress of molecular simulation in acrylamide linear and crosslinked polymers are expounded. Finally, the development prospect of acrylamide polymer research is given, and suggestions are put forward in terms of simulation direction and simulation tools.
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Affiliation(s)
- Zhenye Liu
- College of Petroleum Engineering, Liaoning Petrochemical University, No. 1, West Section of Dandong Road, Wanghua District, Fushun 113001, China; (Z.L.); (Z.X.); (S.Y.)
| | - Qi Feng
- School of Civil Engineering, Liaoning Petrochemical University, No. 1, West Section of Dandong Road, Wanghua District, Fushun 113001, China
| | - Zhuangzhuang Xu
- College of Petroleum Engineering, Liaoning Petrochemical University, No. 1, West Section of Dandong Road, Wanghua District, Fushun 113001, China; (Z.L.); (Z.X.); (S.Y.)
| | - Shuangchun Yang
- College of Petroleum Engineering, Liaoning Petrochemical University, No. 1, West Section of Dandong Road, Wanghua District, Fushun 113001, China; (Z.L.); (Z.X.); (S.Y.)
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Zhang L, Chen F, Wang H, He J, Luo M, Chen H, Zhong C. Starch microsphere silicon-boron crosslinker for low concentration hydroxypropyl guar gum based fracturing fluid. Int J Biol Macromol 2024; 264:130575. [PMID: 38432270 DOI: 10.1016/j.ijbiomac.2024.130575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/17/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
Hydroxypropyl guar gum (HPG) is a critical thickener to increase viscosity and lubrication to improve the water-based hydraulic fracturing efficiency. However, current crosslinkers require a large amount of HPG (>0.3 wt%) to form gel with sufficient viscosity, and high concentrations of HPG may cause adverse effects to the production and the environment. In this study, a novel starch microsphere silica‑boron crosslinker (SMSB) was developed using starch microspheres as a carrier and γ-aminopropyl triethoxy silane (KH550) as a modifier with an in-house method. Both the rheology and surface reactions of the SMSB-HPG crosslinking system were studied using multiple laboratory experiments and molecular dynamics simulation. The results showed that SMSB crosslinker caused multi-site cross-linking with low concentration (only 0.2 wt%) of HPG molecules, reducing the twisting of single molecular chain in the crosslinking system, enhancing the cross-linking strength between molecular chains, and making HPG molecular chains stretcher in the aqueous solution. The apparent viscosity and viscoelasticity of the HPG system were substantially higher than the organoboron crosslinker, and the temperature resistance of the SMSB-HPG crosslinking system was up to 140 °C. This study provides an alternative green crosslinker for more sustainable industrial applications and provides theoretical basis for the modification of biomaterials.
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Affiliation(s)
- Lin Zhang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Fu Chen
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, China
| | - Heng Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Jie He
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Mina Luo
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
| | - Hao Chen
- CNPC Greatwall Drilling Company Sichuan Shale Gas Department, Chengdu, Sichuan 610051, China
| | - Cheng Zhong
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, Sichuan 610500, China.
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Kotak D, Kamath P, Ghosh UU. Polymer Imbibition Through Paper Strips. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5306-5313. [PMID: 38422487 DOI: 10.1021/acs.langmuir.3c03751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Liquid wicking and imbibition through porous strips are fundamental to paper microfluidics. In this study, we outline these processes via capillary rise dynamics (CRD) experiments by employing deionized water as a reference fluid and comparing its dynamics with those of aqueous polymer solutions. Replacing the working fluid with polymer solutions led to the occurrence of an intermediate viscous-dominated regime, followed by the gravity-dominated regime at a long-time scale. This transition from viscous-dominated to gravity-dominated was found to be a function of the porous substrate pore diameter. The delay in CRD from the viscous-dominated to gravity-dominated regime is explained by the presence of the prewetting front (PWF). To address it, PWF dynamics has also been quantified, along with the characterization of its morphological differences.
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Affiliation(s)
- Deep Kotak
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Prajwal Kamath
- School of Biomedical Engineering, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Udita U Ghosh
- Department of Chemical Engineering & Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
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Wang D, Zheng Y, Deng Q, Liu X. Water-Soluble Synthetic Polymers: Their Environmental Emission Relevant Usage, Transport and Transformation, Persistence, and Toxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:6387-6402. [PMID: 37052478 DOI: 10.1021/acs.est.2c09178] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Water-soluble synthetic polymers (WSPs) are distinct from insoluble plastic particles, which are both critical components of synthetic polymers. In the history of human-made macromolecules, WSPs have consistently portrayed a crucial role and served as the ingredients of a variety of products (e.g., flocculants, thickeners, solubilizers, surfactants, etc.) commonly used in human society. However, the environmental exposures and risks of WSPs with different functions remain poorly understood. This paper provides a critical review of the usage, environmental fate, environmental persistence, and biological consequences of multiple types of WSPs in commercial and industrial production. Investigations have identified a wide market of applications and potential environmental threats of various types of WSPs, but we still lack the suitable assessment tools. The effects of physicochemical properties and environmental factors on the environmental distribution as well as the transport and transformation of WSPs are further summarized. Evidence regarding the degradation of WSPs, including mechanical, thermal, hydrolytic, photoinduced, and biological degradation is summarized, and their environmental persistence is discussed. The toxicity data show that some WSPs can cause adverse effects on aquatic species and microbial communities through intrinsic toxicity and physical hazards. This review may serve as a guide for environmental risk assessment to help develop a sustainable path for WSP management.
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Affiliation(s)
- Dongbo Wang
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, P. R. China
| | - Yuyang Zheng
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, P. R. China
| | - Qian Deng
- College of Environmental Science and Engineering and Key Laboratory of Environmental Biology and Pollution Control (Ministry of Education), Hunan University, Changsha 410082, P. R. China
| | - Xuran Liu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR, P. R. China
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Rheological Performance of High-Temperature-Resistant, Salt-Resistant Fracturing Fluid Gel Based on Organic-Zirconium-Crosslinked HPAM. Gels 2023; 9:gels9020151. [PMID: 36826321 PMCID: PMC9956356 DOI: 10.3390/gels9020151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/31/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
Development of low-cost, high-temperature-resistant and salt-resistant fracturing fluids is a hot and difficult issue in reservoir fluids modification. In this study, an organic zirconium crosslinker that was synthesized and crosslinked with partially hydrolyzed polyacrylamide (HPAM) was employed as a cost-effective polymer thickener to synthesize a high-temperature-resistant and salt-resistant fracturing fluid. The rheological properties of HPAM in tap water solutions and 2 × 104 mg/L salt solutions were analyzed. The results demonstrated that addition of salt reduced viscosity and viscoelasticity of HPAM solutions. Molecular dynamics (MD) simulation results indicated that, due to electrostatic interaction, the carboxylate ions of HPAM formed an ionic bridge with metal cations, curling the conformation, decreasing the radius of rotation and thus decreasing viscosity. However, optimizing fracturing fluids formulation can mitigate the detrimental effects of salt on HPAM. The rheological characteristics of the HPAM fracturing fluid crosslinking process were analyzed and a crosslinking rheological kinetic equation was established under small-amplitude oscillatory shear (SAOS) test. The results of a large-amplitude oscillation shear (LAOS) test indicate that the heating effect on crosslinking is stronger than the shear effect on crosslinking. High-temperature-resistant and shear-resistant experiments demonstrated good performance of fracturing fluids of tap water and salt solution at 200 °C and 180 °C.
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Zhou X, Lei L, Zeng Y, Lu X, Liang F, Zhang L, Lin G. High salinity effects on the depletion attraction in colloid-polymer mixtures. J Colloid Interface Sci 2022; 631:155-164. [DOI: 10.1016/j.jcis.2022.10.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022]
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Echeverry-Vargas L, Estrada D, Gutierrez L. Molecular Dynamics Simulations of the Interactions between a Hydrolyzed Polyacrylamide with the Face and Edge Surfaces of Molybdenite. Polymers (Basel) 2022; 14:polym14173680. [PMID: 36080754 PMCID: PMC9460289 DOI: 10.3390/polym14173680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Process water used in mineral processing operations corresponds to water recovered from the thickeners and tailings dams, containing residual reagents such as hydrolyzed polyacrylamides (HPAMs). These polymers depress the flotation of different minerals, and their effect on molybdenite has been experimentally demonstrated. The objective of this work was to study the interactions between a segment of a HPAM with the face and edge of molybdenite. The sigma profile, the radial distribution functions of the HPAM, and the orientation and atomic density profiles of water molecules on the face and edge surfaces of molybdenite were calculated. The results obtained from molecular dynamics simulations showed that the interactions between the HPAM and molybdenite are mainly explained by the interactions of the amide group with the faces and edges of the mineral. Molecular dynamics simulations also showed that the HPAM molecule rearranges in such a way that the amide group moves towards the molybdenite face or edge, and the carboxylate group moves away from the mineral surface. The results obtained in the simulations showed that the interactions of the HPAM with the molybdenite edge are slightly stronger than the interaction of this molecule with the mineral face. Simulations demonstrated that the presence of the sodium and hydroxide ions reduces the concentration of HPAM around the face and edge surfaces, which is expected to affect HPAM adsorption on molybdenite. The conclusions obtained through molecular dynamics simulations are in line with the results obtained in previous studies carried out at a macroscopic scale, which reported that HPAMs adsorb onto molybdenite particles and reduce their hydrophobicity.
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Affiliation(s)
- Luver Echeverry-Vargas
- Department of Metallurgical Engineering, Universidad de Concepción, Concepción 4070371, Chile
| | - Darwin Estrada
- Department of Metallurgical Engineering, Universidad de Concepción, Concepción 4070371, Chile
| | - Leopoldo Gutierrez
- Department of Metallurgical Engineering, Universidad de Concepción, Concepción 4070371, Chile
- Water Research Center for Agriculture and Mining (CRHIAM), Universidad de Concepción, Concepción 4070411, Chile
- Correspondence:
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Molecular Dynamics Study of the Conformation, Ion Adsorption, Diffusion, and Water Structure of Soluble Polymers in Saline Solutions. Polymers (Basel) 2021; 13:polym13203550. [PMID: 34685308 PMCID: PMC8539329 DOI: 10.3390/polym13203550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022] Open
Abstract
Polymers have interesting physicochemical characteristics such as charge density, functionalities, and molecular weight. Such attributes are of great importance for use in industrial purposes. Understanding how these characteristics are affected is still complex, but with the help of molecular dynamics (MD) and quantum calculations (QM), it is possible to understand the behavior of polymers at the molecular level with great consistency. This study was applied to polymers derived from polyacrylamide (PAM) due to its great use in various industries. The polymers studied include hydrolyzed polyacrylamide (HPAM), poly (2-acrylamido-2-methylpropanesulfonate) (PAMPS), polyacrylic acid (PAA), polyethylene oxide polymer (PEO), and guar gum polysaccharide (GUAR). Each one has different attributes, which help in understanding the effects on the polymer and the medium in which it is applied along a broad spectrum. The results include the conformation, diffusion, ion condensation, the structure of the water around the polymer, and interatomic polymer interactions. Such characteristics are important to selecting a polymer depending on the environment in which it is found and its purpose. The effect caused by salinity is particular to each polymer, where polymers with an explicit charge or polyelectrolytes are more susceptible to changes due to salinity, increasing their coiling and reducing their mobility in solution. This naturally reduces its ability to form polymeric bridges due to having a polymer with a smaller gyration radius. In contrast, neutral polymers are less affected in their structure, making them favorable in media with high ionic charges.
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Patel V, Dalsania Y, Azad MS, Sharma T, Trivedi J. Characterization of co‐ and post‐hydrolyzed polyacrylamide molecular weight and radius distribution under saline environment. J Appl Polym Sci 2021. [DOI: 10.1002/app.50616] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Viralkumar Patel
- Department of Petroleum Engineering University of Alberta Edmonton Alberta Canada
| | - Yogeshkumar Dalsania
- Department of Petroleum Engineering University of Alberta Edmonton Alberta Canada
| | - Madhar Sahib Azad
- Department of Petroleum Engineering University of Alberta Edmonton Alberta Canada
| | - Tushar Sharma
- Department of Petroleum Engineering Rajiv Gandhi Institute of Petroleum Technology Raebareli India
| | - Japan Trivedi
- Department of Petroleum Engineering University of Alberta Edmonton Alberta Canada
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Xu L, Liu S, Qiu Z, Gong H, Fan H, Zhu T, Zhang H, Dong M. Hydrophobic effect further improves the rheological behaviors and oil recovery of polyacrylamide/nanosilica hybrids at high salinity. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116369] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Gurina D, Surov O, Voronova M, Zakharov A. Molecular Dynamics Simulation of Polyacrylamide Adsorption on Cellulose Nanocrystals. NANOMATERIALS 2020; 10:nano10071256. [PMID: 32605224 PMCID: PMC7408107 DOI: 10.3390/nano10071256] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 11/20/2022]
Abstract
Classical molecular dynamics simulations of polyacrylamide (PAM) adsorption on cellulose nanocrystals (CNC) in a vacuum and a water environment are carried out to interpret the mechanism of the polymer interactions with CNC. The structural behavior of PAM is studied in terms of the radius of gyration, atom–atom radial distribution functions, and number of hydrogen bonds. The structural and dynamical characteristics of the polymer adsorption are investigated. It is established that in water the polymer macromolecules are mainly adsorbed in the form of a coil onto the CNC facets. It is found out that water and PAM sorption on CNC is a competitive process, and water weakens the interaction between the polymer and CNC.
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Affiliation(s)
- Darya Gurina
- Correspondence: (D.G.); (O.S.); Tel.: +7-493-2351-869 (D.G.); +7-493-2351-545 (O.S.)
| | - Oleg Surov
- Correspondence: (D.G.); (O.S.); Tel.: +7-493-2351-869 (D.G.); +7-493-2351-545 (O.S.)
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12
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Molecular dynamics simulations of the conformation and diffusion of partially hydrolyzed polyacrylamide in highly saline solutions. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115366] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Camara M, Liao H, Xu J, Zhang J, Swai R. Molecular dynamics study of the intercalation and conformational transition of poly (N-vinyl caprolactam), a thermosensitive polymer in hydrated Na-montmorillonite. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121718] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Experimental Analysis and Numerical Modeling of Polymer Flooding in Heavy Oil Recovery Enhancement: A Pore-Level Investigation. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2019. [DOI: 10.1007/s13369-019-04005-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Rukmani SJ, Kupgan G, Anstine DM, Colina CM. A molecular dynamics study of water-soluble polymers: analysis of force fields from atomistic simulations. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1531401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Shalini J. Rukmani
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, FL, USA
| | - Grit Kupgan
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, FL, USA
| | - Dylan M. Anstine
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, FL, USA
| | - Coray M. Colina
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
- George and Josephine Butler Polymer Research Laboratory, Department of Chemistry, University of Florida, Gainesville, FL, USA
- Department of Chemistry, University of Florida, Gainesville, FL, USA
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Mohammadi M, Salami-Kalajahi M, Roghani-Mamaqani H, Golshan M. Effect of molecular weight and polymer concentration on the triple temperature/pH/ionic strength-sensitive behavior of poly(2-(dimethylamino)ethyl methacrylate). INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2016.1236340] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Maryam Mohammadi
- Department of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Mehdi Salami-Kalajahi
- Department of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Hossein Roghani-Mamaqani
- Department of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Marzieh Golshan
- Department of Polymer Engineering, Sahand University of Technology, Tabriz, Iran
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
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Alvand E, Aalaie J, Hemmati M, Sajjadian VA. Rheological and thermal stability of novel weak gels based on sulfonated polyacrylamide/scleroglucan/chromium triacetate. POLYM INT 2016. [DOI: 10.1002/pi.5287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ehsan Alvand
- Chemicals, Polymers and Petrochemicals Technology Development Division; Research Institute of Petroleum Industry (RIPI); PO Box 14665-137 Tehran Iran
| | - Jamal Aalaie
- Chemicals, Polymers and Petrochemicals Technology Development Division; Research Institute of Petroleum Industry (RIPI); PO Box 14665-137 Tehran Iran
| | - Mahmood Hemmati
- Chemicals, Polymers and Petrochemicals Technology Development Division; Research Institute of Petroleum Industry (RIPI); PO Box 14665-137 Tehran Iran
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Nair N, Park M, Handgraaf JW, Cassiola FM. Coarse-Grained Simulations of Polymer-Grafted Nanoparticles: Structural Stability and Interfacial Behavior. J Phys Chem B 2016; 120:9523-39. [DOI: 10.1021/acs.jpcb.6b06199] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nitish Nair
- Shell India Markets Private Limited, Bangalore 560048, India
| | - Michelle Park
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | | | - Flavia M. Cassiola
- Shell International Exploration and Production, Westhollow, Houston, Texas 77082-3101, United States
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20
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Silmore KS, Gupta C, Washburn NR. Tunable Pickering emulsions with polymer-grafted lignin nanoparticles (PGLNs). J Colloid Interface Sci 2016; 466:91-100. [DOI: 10.1016/j.jcis.2015.11.042] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 10/22/2022]
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21
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Study of adsorptive behavior of sulfonated polyacrylamide onto carbonate rock particles to enhance oil recovery. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0112-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Dynamics simulation on the associative properties of amphiphilic functional monomer modified polyacrylamide copolymers. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1605-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Deng Q, Li H, Li Y, Cao X, Yang Y, Song X. Rheological Properties and Salt Resistance of a Hydrophobically Associating Polyacrylamide. Aust J Chem 2014. [DOI: 10.1071/ch14204] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The rheological properties of electrolyte solution of a hydrophobically associating acrylamide-based copolymer (HA-PAM) containing hydrophobically modified monomer and sodium 2-acrylamido-2-methylpropanesulfonic sulfonate were investigated in this paper. The study mainly focussed on effects of electrolyte concentration, temperature, and shear rate on the solution rheological properties. HA-PAM exhibited much stronger salt tolerance and shearing resistance than the commonly used partially hydrolyzed polyacrylamide, and has great potential for application in tertiary oil recovery of oilfields with high salinity. The salt resistance mechanism of HA-PAM in solution was investigated by combining molecular simulation and experimental methods. The structure–performance relationship of the salt-resisting polymer may provide useful guidance for design and synthesis of novel water-soluble polymers with high salt resistance.
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Atomistic insights into solvation dynamics and conformational transformation in thermo-sensitive and non-thermo-sensitive oligomers. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.11.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Molecular design of modified polyacrylamide for the salt tolerance. J Mol Model 2012; 18:4529-45. [DOI: 10.1007/s00894-012-1447-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 04/23/2012] [Indexed: 10/28/2022]
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