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Journal articles on the topic 'Effect of polymer'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Alli, Yani Faozani. "THE EFFECT OF ELECTROLYTES ON POLYMER VISCOSITY FOR EFFECTIVENESS OF POLYMER INJECTION." Scientific Contributions Oil and Gas 42, no. 2 (2020): 59–63. http://dx.doi.org/10.29017/scog.42.2.386.

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The use of polymer for tertiary oil recovery has been known to be important as viscosity modifier to increase sweep efficiency of water flood and chemical flood. The most common polymer used for chemical flood is hydrolyzed polyacrylamide (HPAM) that owing large number of charges along the polymer chains. However, formation water as dissolution water contain high electrolytes that has a great effect on polymer viscosity, as well as responsible to generate the efficiency of polymer flooding. In this study, the effect of electrolytes from saline and cation divalent to the viscosity of polymer wa

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Amjad, Zahid. "Effect of Polymer Architecture on Calcium Oxalate Inhibition." Materials Performance 59, no. 2 (2020): 26–29. https://doi.org/10.5006/mp2020_59_2-26.

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In this study, the effect of polymer architecture (i.e., composition, functional group, monomer type, etc.) on calcium oxalate (CaOx) precipitation in aqueous solution was investigated using the spontaneous precipitation method. The polymers tested include natural, bio-, and synthetic homo-and copolymers. The experimental results show that performance of polymers as CaOx inhibitors strongly depends on polymer architecture. In general, polymers containing the carboxyl group perform better than co-and terpolymers containing hydrophobic and bulky comonomers. Results on CaOx crystals characterizat

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Kuwahara, Y., Toshiki Miyazaki, and Kawashita Masakazu. "Effect of Organic Polymer Addition on the Microstructure of Magnetite-Polymer Hybrid." Key Engineering Materials 529-530 (November 2012): 453–56. http://dx.doi.org/10.4028/www.scientific.net/kem.529-530.453.

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This study is concerning hybrid materials composed of the magnetite and the organic polymer such as dextran. They are useful for hyperthermia of cancer. In the preparation of this material, chemical structure or molecular weight of the added polymer is expected to affect ionic interaction between polymer and iron salts, and consequently the grain size and morphology of the prepared magnetite core. Therefore, we have synthesized magnetite-polymer hybrids using various polymers. Various polymers were dissolved in iron (II) chloride aqueous solution, and then NaOH aqueous solution was added to th

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Varghese, Siby, Yosuke Katsumura, Keizo Makuuchi, and Fumio Yoshi. "Effect of Water Soluble Polymers on Radiation Vulcanized Natural Rubber Latex Films." Rubber Chemistry and Technology 72, no. 2 (1999): 308–17. http://dx.doi.org/10.5254/1.3538803.

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Abstract Technological properties of radiation vulcanized latex after mixing with water soluble polymers (WSP) such as poly(vinyl alcohol), poly(ethylene oxide) etc. have been studied in detail. The properties of water soluble polymer incorporated vulcanizates depend mainly on the type of the polymer blended into the latex. Most of the polymers showed a drastic increase in tear strength with polymer content and a reduction in tackiness of the vulcanized films. Radiation processing increases the water soluble protein content in the serum phase whereas that in the rubber phase decreases. Additio

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Niu, Sen. "Preparation of acid-sensitive polymeric oncology drug carriers and analysis of their efficacy." Nanomaterials and Energy 12, no. 4 (2023): 1–10. http://dx.doi.org/10.1680/jnaen.22.00031.

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GA and CA4 were used as antitumor drugs to prepare TP polymers by raft, ATRP and click polymerization. GPC characterization showed that the molecular weights of cy7.5, C7A and peg in pek5k Lys azma cy7.5-c7atp polymer were 5K. The particle size of GA and CA-4 embedded in 10 mgtp and LP polymers is 3.2 mg. The toxicity of CA-4 is low, while the toxicity of GA is high. For LP and TP polymers, higher apoptosis rate will be produced under laser irradiation. The polymers are aggregated at the tumor site, which indicates that the polymer system has a better in vivo distribution effect, and the aggre

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Liu, Kexin, Pingli Liu, and Juan Du. "Effects of pH on Polyacrylamide Polymers in Chemical Degradation: A Review." Journal of Physics: Conference Series 2834, no. 1 (2024): 012182. http://dx.doi.org/10.1088/1742-6596/2834/1/012182.

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Abstract Chemicals, such as strong oxidant and acid, are generally used for removing the polymer (mainly polyacrylamide polymer) damage in polymer injection wells. The strong oxidant degrades the polymer by breaking polymer molecular chain, but the mechanism of polymer degradation by acid or pH has not been fully studied. Therefore, the previous studies on the effect of pH value on polymers are reviewed in this paper, and the basic principle of oxidative degradation of polymers, the effect of pH on polymer production, and the principle of viscosity reduction of polymers caused by acid solution

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Zhang, Dong, Jian Guang Wei, and Run Nan Zhou. "Investigation on the effect of active-polymers with different functional groups for EOR." e-Polymers 20, no. 1 (2020): 61–68. http://dx.doi.org/10.1515/epoly-2020-0007.

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AbstractActive-polymer attracted increasing interest as an enhancing oil recovery technology in oilfield development owing to the characteristics of polymer and surfactant. Different types of active functional groups, which grafted on the polymer branched chain, have different effects on the oil displacement performance of the active-polymers. In this article, the determination of molecular size and viscosity of active-polymers were characterized by Scatterer and Rheometer to detect the expanded swept volume ability. And the Leica microscope was used to evaluate the emulsifying property of the

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Khudyakov, Igor, Peter Levin, and Aleksei Efremkin. "Cage Effect under Photolysis in Polymer Matrices." Coatings 9, no. 2 (2019): 111. http://dx.doi.org/10.3390/coatings9020111.

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Photoinduced elementary reactions of low-MW compounds in polymers is an area of active research. Cured organic polymer coatings often undergo photodegradation by free-radical paths. Besides practical importance, such studies teach how the polymer environment controls elementary free-radical reactions. Presented here is a review of recent literature which reports such studies by product analysis and by a time-resolve technique of photochemical reaction inside the cage of a polymer and in the bulk of a polymer. It was established that application of moderate external magnetic field allows the co

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Song, Kaoping, Jianwen Tao, Xiuqin Lyu, et al. "Recent Advances in Polymer Flooding in China." Molecules 27, no. 20 (2022): 6978. http://dx.doi.org/10.3390/molecules27206978.

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Polymer flooding is drawing lots of attention because of the technical maturity in some reservoirs. The first commercial polymer flooding in China was performed in the Daqing oilfield and is one of the largest applications in the world. Some laboratory tests from Daqing researchers in China showed that the viscoelasticity of high molecular weight polymers plays a significant role in increasing displacement efficiency. Hence, encouraged by the conventional field applications and new findings on the viscoelasticity effect of polymers on residual oil saturation (ROS), some high-concentration high

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Tang, Jia Bin, Wen Xiang Wu, and Zhu Xin Zhang. "Evaluation of New Active Polymer Systems." Advanced Materials Research 848 (November 2013): 7–10. http://dx.doi.org/10.4028/www.scientific.net/amr.848.7.

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Using the physical simulation experiment, for the new active polymers, common carve and polymer 25 million to act on interfacial tension test, the results indicate, interfacial tension for common carve and polymer 25 million is about 10 mn/m. and interfacial tension for the active polymer is about 1 mn/m. Rheology showed that the viscosity and elasticity of active polymer solution were higher than 25 million polymer.In liquidity experiment, active polymer solution has the better liquidity than in 25 million polymers in the low permeable formation,the flooding effect of active polymer is better

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11

Perron, Gérald, Josée Francoeur, Jacques E. Desnoyers, and Jan C. T. Kwak. "Heat capacities and volumes in aqueous polymer and polymer–surfactant solutions." Canadian Journal of Chemistry 65, no. 5 (1987): 990–95. http://dx.doi.org/10.1139/v87-169.

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The apparent molar volumes and heat capacities of aqueous mixtures of neutral polymers and ionic surfactants were measured at 25 °C. The polymers chosen were poly(vinylpyrrolidone) (PVP) and poly(ethyleneoxide) (PEO) and the surfactants were the C8, C10, and C12 homologs of sodium alkylsulfates and the C10, C12, and C16 homologs of alkyltrimethylammonium bromides. The polymer–surfactant interactions depend on the nature of both components and on the chain length of the surfactant. The thermodynamic properties of the cationic surfactants are essentially the same in the absence and presence of p

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Losytskyy, M. Y. "Different effect of polymer-incorporated nanoparticles of Au and Ag on hematoporphyrin interaction with graft polymers." Functional materials 26, no. 1 (2019): 107–13. http://dx.doi.org/10.15407/fm26.01.107.

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13

Assi, Amel Habeeb, Ramzi Riyadh Khazeem, Ahmed Salah Salem, and Alaa Tahseen Ali. "Studying the Effects of Different Polymers on Rheological Properties of Water Base Muds." Journal of Engineering 24, no. 12 (2018): 12–25. http://dx.doi.org/10.31026/j.eng.2018.12.02.

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This research is focusing on finding more effective polymers that leads to enhance the rheological properties of Water Base Muds. The experiments are done for different types of mud for all substances which are Polyacrylamide, Xanthan gum, CMC (Carboxyl Methyl Cellulose). This study shows the effect of add polymer to red bentonite mud, effect of add polymer to Iraqi bentonite mud, the effect of add bentonite to polymer mud. The mud properties of Iraqi bentonite blank are enhanced after adding the polymers to the blank mix, CMC gives the highest value of plastic viscosity and Gel strength than

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14

Chen, Lu, and Yanbin Huang. "The guest polymer effect on the dissolution of drug–polymer crystalline inclusion complexes." RSC Advances 11, no. 22 (2021): 13091–96. http://dx.doi.org/10.1039/d1ra01926k.

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15

Ahola, Susanna, Petri Myllytie, Monika Österberg, Tuija Teerinen, and Janne Laine. "Effect of polymer adsorption on cellulose nanofibril water binding capacity and aggregation." BioResources 3, no. 4 (2008): 1315–28. http://dx.doi.org/10.15376/biores.3.4.1315-1328.

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Polymer adsorption on cellulose nanofibrils and the effect on nanofibril water binding capacity were studied using cellulose nanofibril films together with quartz crystal microbalance with dissipation (QCM-D) and surface plasmon resonance (SPR). The experiments were performed in the immersed state, and special attention was paid to the effect of polymer properties on the water content and viscoelastic properties of the polymer/fibril layer. The dry mass of the adsorbed polymers was determined using SPR. The type of the adsorbed polymer strongly affected the water content and viscoelastic prope

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Ervina Efzan, M. N., and N. Siti Syazwani. "A Review on Effect of Nanoreinforcement on Mechanical Properties of Polymer Nanocomposites." Solid State Phenomena 280 (August 2018): 284–93. http://dx.doi.org/10.4028/www.scientific.net/ssp.280.284.

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Polymer nanocomposites represent a new class of materials that offer an alternative to the conventional filled polymers. In this new class of materials, nanosized reinforcement are dispersed in polymer matrix offering tremendous improvement in performance properties of the polymer. The combination of nanoscale reinforcement and polymer matrix possess outstanding properties and functional performance which play an important role in many field of applications. This review addresses the types of nanoscale materials reinforced in polymer matrix such as nanocellulose, carbon nanotubes (CNTs), graph

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Zhang, Andong, Chengyi Xiao, Dong Meng, et al. "Conjugated polymers with deep LUMO levels for field-effect transistors and polymer–polymer solar cells." Journal of Materials Chemistry C 3, no. 31 (2015): 8255–61. http://dx.doi.org/10.1039/c5tc01313e.

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Sharifah Shahnaz, Syed Bakar, Rita Khanna, Sahajwalla Veena, Hussin Kamarudin, N. Z. Noimam, and Sung Ting Sam. "Characterizations on the Effect of Processing of Polymers Blend with Petroleum Coke (Part I)." Advanced Materials Research 795 (September 2013): 644–48. http://dx.doi.org/10.4028/www.scientific.net/amr.795.644.

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Global demand for plastics has grown significantly over the past decades, and will continue to expand with rising income levels in emerging economies; a number of approaches have been used to recycle polymer waste. While chemical recycling is one of the key methods used as it recovers and reuses the polymer in high-end product; new avenues for waste recycling need to be developed. In-depth interfacial behaviour investigation was carried out to study interactions between polymers and petroleum coke (PC). Polypropylene (PP), polyethylene (PE) and polystyrene (PS) polymers are three major polymer

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19

Czarnecki, Lech. "Use of Polymers to Enhance Concrete Performance." Advanced Materials Research 1129 (November 2015): 49–58. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.49.

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Decades ago, an implantation of polymer into concrete has taken an effect in Concrete Polymer Composites, C-PC – new concrete classes and since that time a constant developmentpolymers in concretetechnology has been observed. The object of the study in short definition has been described and classified. The meaning ofpolymer better concreteas well ashow polymer improves the concretehas been explained. It has been analyzed and stressed that the polymer function in concrete is much higher than one could deduct from their mass share. The reason for that is synergy effect – the result of cooperati

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Estrada-Monje, Anayansi, Miroslava Alejandra Silva-Goujon, Isis Rodríguez-Sánchez, et al. "Effect of the Addition of PLA on the Thermal and Mechanical Properties of Reprocessed HDPE." Polymers 16, no. 16 (2024): 2387. http://dx.doi.org/10.3390/polym16162387.

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Amid the current environmental crisis caused by plastic accumulation, one of the proposed solutions to manage this problem is using biodegradable polymers. However, the impact of adding biodegradable polymers to the well-established circular economy of recyclable polymers, such as HDPE, has not been fully considered. Therefore, there is a need to reconsider the way we consume, dispose of, and manage biodegradable polymers after use. This study evaluates the effect of varying the contents of a biodegradable polymer, taking poly(lactic acid) (PLA) as a model biodegradable polymer, on the thermal

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Diamadopoulos, Evangelos, and Donald R. Woods. "An Investigation of the Factors Affecting the Removal of Fulvic Acid From Water by Aluminum and Polymers." Water Quality Research Journal 22, no. 3 (1987): 377–84. http://dx.doi.org/10.2166/wqrj.1987.029.

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Abstract The effect of five operating variables on the removal of fulvic acid from water by means of aluminum and polymers was studied. These variables were the pH, the calcium concentration in the water, and the polymer dosage, molar mass and degree of hydrolysis. The study followed a 25−1 resolution V fractional factorial experimental design. Based on a statistical analysis, the most significant effects were the pH, the calcium concentration, the polymer molar mass and the interaction of pH with calcium concentration. A calcium concentration of 40 mg/L, a pH of 7 and a polymer with a molar m

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La Mantia, Francesco Paolo, Manuela Ceraulo, Maria Chiara Mistretta, and Marco Morreale. "Effect of Cold Drawing on Mechanical Properties of Biodegradable Fibers." Journal of Applied Biomaterials & Functional Materials 15, no. 1 (2017): 70–76. http://dx.doi.org/10.5301/jabfm.5000328.

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Purpose Biodegradable polymers are currently gaining importance in several fields, because they allow mitigation of the impact on the environment related to disposal of traditional, nonbiodegradable polymers, as well as reducing the utilization of oil-based sources (when they also come from renewable resources). Fibers made of biodegradable polymers are of particular interest, though, it is not easy to obtain polymer fibers with suitable mechanical properties and to tailor these to the specific application. The main ways to tailor the mechanical properties of a given biodegradable polymer fibe

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Sun, Xiaolong, Qinyuan Peng, Yongqiang Zhu, Qian Chen, Junshen Yuan, and Yunchu Zhu. "Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt." Advances in Materials Science and Engineering 2022 (July 7, 2022): 1–12. http://dx.doi.org/10.1155/2022/1157687.

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The purpose of this study was to characterize and evaluate the effects of UV radiation on the rheological and physicochemical properties of ASA polymer-modified asphalt. The conventional properties (penetration, softening point, ductility, and Brookfield viscosity) of ASA polymer-modified asphalt were tested. Based on rheology, the effect of different UV irradiation times on the high-temperature performance of ASA polymer-modified asphalt was systematically characterized, the thermogravimetric analyzer (TGA) was used to analyze thermogravimetric properties of ASA polymer-modified asphalt, and

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Navaie, Farhood, Ehsan Esmaeilnezhad, and Hyoung-Jin Choi. "Effect of Rheological Properties of Polymer Solution on Polymer Flooding Characteristics." Polymers 14, no. 24 (2022): 5555. http://dx.doi.org/10.3390/polym14245555.

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Polymer flooding is an appropriate enhanced oil recovery (EOR) process that can increase macroscopic sweep efficiency. We examined two polymeric superpushers at different salinities (10,000 and 42,000 ppm of NaCl and 18,000 ppm of CaCl2) and temperatures (30 to 75 °C) as polymer-flooding agents for the EOR process. Rheological and thixotropic tests were attempted to find shear viscosity change when the polymer solutions were introduced under different salinity and temperatures, followed by describing the rheological behavior with the two most common rheological models used for polymer solution

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Saveyn, H., D. Curvers, J. Pelicaen, J. Cauwenberghs, C. Thoeye, and P. Van der Meeren. "Implications and remediations of DMAEA-Q type polymer hydrolysis in wastewater treatment plants." Water Science and Technology 61, no. 5 (2010): 1349–54. http://dx.doi.org/10.2166/wst.2010.046.

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The present paper outlines the impact of hydrolysis occurring in DMAEA-Q type polymers in the dewatering facilities of municipal wastewater treatment plants. Laboratory studies of polymer hydrolysis kinetics were combined with full-scale dewatering experiments to investigate the influence of polymer charge loss on polymer consumption and cake dry matter yields. The results indicate that prolonged polymer storage leads to important charge loss effects, resulting in increased dosage requirements for satisfactory dewatering performance. Fortunately, charge loss effects due to hydrolysis upon poly

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Rakhadilov, B. K., D. B. Buytkenov, and K. Akatan. "EFFECT OF ELECTRON BEAM TREATMENT ON THE WEAR RESISTANCE OF POLYMERS." NNC RK Bulletin, no. 3 (September 30, 2018): 103–6. http://dx.doi.org/10.52676/1729-7885-2018-3-103-106.

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This work is related to the study of the effect of electron-beam processing on the physical and mechanical properties of polymer materials (PEI and PET). After electron-beam processing with a beam current of 30 mA and an energy of 1.2 keV, the microhardness of the polymers increased by a factor of 1.5 compared to the initial state. PET polymer samples show a decrease in wear rate of up to 30 %, and resistance to abrasion of the polymer increased by 1.3 times compared to the original sample. The results of the conducted studies have shown the prospects of using electron irradiation for increasi

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Chanphai, Penprapa, Laurent Bekale, Sriwanna Sanyakamdhorn, Daniel Agudelo, and Heidar-Ali Tajmir-Riahi. "Effect of synthetic polymers on polymer–protein interaction." Polymer 55, no. 2 (2014): 572–82. http://dx.doi.org/10.1016/j.polymer.2013.12.026.

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Krongauz, Vadim V. "Compensation effect: sublimation, diffusion in polymers, polymer degradation." Journal of Thermal Analysis and Calorimetry 138, no. 5 (2019): 3425–44. http://dx.doi.org/10.1007/s10973-019-08851-z.

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Fatriansyah, Jaka Fajar, Hanindito Haidar Satrio, Muhammad Joshua Yuriansyah Barmaki, Arbi Irsyad Fikri, and Mochamad Chalid. "Simulation of Melt Viscosity Effect on the Rate of Solidification in Polymer." Indonesian Journal of Chemistry 19, no. 2 (2019): 285. http://dx.doi.org/10.22146/ijc.27195.

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Phase field model has been successfully derived from ordinary metal phase field equation to simulate the behavior of semi-crystalline polymer solidification phenomenon. To obtain the polymer phase field model, a non-conserved phase field equation can be expanded to include the unique polymer parameters, which do not exist in metals, for example, polymer melt viscosity and diffusion coefficient. In order to expand this model, we include free energy density and non-local free energy density based on Harrowel-Oxtoby and Ginzburg-Landau theorem for polymers. The expansion principle for a higher or

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Wieser, Martin, Andreas Schaur, Seraphin Hubert Unterberger, and Roman Lackner. "On the Effect of Recycled Polyolefins on the Thermorheological Performance of Polymer-Modified Bitumen Used for Roofing-Applications." Sustainability 13, no. 6 (2021): 3284. http://dx.doi.org/10.3390/su13063284.

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In order to meet the technical specifications in roofing applications, the bitumen used for this purpose is standardly modified by polymers. This, in general, allows the re-use of recycled polymer during the production of polymer-modified bitumen (PmB), simultaneously reducing the amount of polymeric waste. Recycling processes, however, may degrade or contaminate polymers, leading to reduced crystallinity and lower melting temperature. Six different recycled polyolefins (high crystallinity: iPP, HDPE; reduced crystallinity: APP, PP Copolymer; waxy polyolefins: Wax 105, Wax 115) were assessed o

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Sharifah Shahnaz, Syed Bakar, Rita Khanna, Sahajwalla Veena, Hussin Kamarudin, N. Z. Noimam, and Sung Ting Sam. "Effect of Pyrolysis on the Wettability Behaviour of Polyethylene Terephthalate on Petroleum Coke." Advanced Materials Research 626 (December 2012): 1015–19. http://dx.doi.org/10.4028/www.scientific.net/amr.626.1015.

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In depth investigations has been carried out on thermoplastic polymers, polyethylene terephthalate (PET). The interaction between PET and PC substrate was studied to investigate the effect of oxygen-containing polymer on the polymer melt wetting properties. The effect of two main parameters, temperature ranging from 300°C to 400°C and time from 30 min to 60 min on the polymer properties and the effect of petroleum coke presence on the degradation process of polymer have been characterized. PET has showed high wettability and deep penetration of melt flow into petroleum coke substrate, which in

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Zhang, Andong, Qiang Wang, Ralf A. A. Bovee, et al. "Perfluoroalkyl-substituted conjugated polymers as electron acceptors for all-polymer solar cells: the effect of diiodoperfluoroalkane additives." Journal of Materials Chemistry A 4, no. 20 (2016): 7736–45. http://dx.doi.org/10.1039/c6ta00962j.

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Wang, Yin-Tung. "NATURE OF HYDR0PHILIC POLYMERS AND THEIR EFFECT ON SOIL PROPERTIES." HortScience 25, no. 8 (1990): 851e—851. http://dx.doi.org/10.21273/hortsci.25.8.851e.

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The rate of full hydration for several hydrophilic polymers differed greatly (starch-based polymers > propenoate-propenoamid copolymer > polyacrylamide). Maximum water retention in distilled water varied from over 500 g to 57 g of water per of different dry materials. All polymers retained less water in the presence of metal ions or fertilizers, with substances releasing Fe+2 being the most detrimental. Potting media containing a polyacrylamide polymer reached maximum water retention after 6 irrigations, while those with Micromax (micronutrient source) required 10 irrigations to reach ma

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Maeder, Thomas, Caroline Jacq, Ludivine Ammon, and Perer Ryser. "Tuneable PTC effect in polymer-wax-carbon composite resistors." Microelectronics International 31, no. 3 (2014): 143–48. http://dx.doi.org/10.1108/mi-12-2013-0079.

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Purpose – The purpose of this paper is to study tuneable positive temperature coefficient (PTC) effect in polymer-wax-carbon composite resistors. The resistivity dependence on temperature of composite resistors made of carbon fillers dispersed in an organic matrix is known to be strongly affected by the matrix thermal expansion. High PTC effects, i.e. essentially switching from resistive to quasi-insulating behaviour, can be caused by phase changes in the matrix and the assorted volume expansion, a behaviour that has been previously shown with both simple organic waxes and semi-crystalline pol

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Chen, Weifeng, Shaona Chen, Weimin Hu, Dejiang Li, and Zhongxu Dai. "The Preparation Approaches of Polymer/graphene Nanocomposites and their Appilcation Research Progress as Electrochemical Sensors." Journal of New Materials for Electrochemical Systems 20, no. 4 (2017): 205–21. http://dx.doi.org/10.14447/jnmes.v20i4.356.

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Graphene, a two-dimensional sheet of sp2-hybridized carbon atoms packed into a honeycomb lattice, can be combined with various polymers through different methods and techniques. Polymer/graphene nanocomposites are expected to not only preserve the fa-vorable properties of graphene and polymers, but also greatly enhance the intrinsic properties due to the synergetic effect between them. In this review, the preparation approaches of graphene/polymer nanocomposites, including melt blending, solution blending, in-situ polymeri-zation and in-situ synthesis, were presented comprehensively in order t

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Koh, Heesong, Vincent B. Lee, and Gary A. Pope. "Experimental Investigation of the Effect of Polymers on Residual Oil Saturation." SPE Journal 23, no. 01 (2017): 1–17. http://dx.doi.org/10.2118/179683-pa.

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Summary Polymer flooding is a widely used commercial process with a low cost per barrel of produced oil, and hydrolyzed polyacrylamide (HPAM) polymers are the most widely used type of polymer. The objective of this research was to better understand and predict the behavior of HPAM polymers and their effect on residual oil saturation (ROS), to improve the capability of optimizing field design and performance. The corefloods were performed under typical field conditions of low pressure gradients and low capillary numbers. The polymer floods of the viscous oils recovered much more oil than the wa

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Kurniadi, Hardi Maifra, Muhammad Taufiq Fathaddin, and Shabrina Sri Riswati. "Effect of Sand Grain on Adsorption of Xanthan Gum and Polyacrylamide." IOP Conference Series: Earth and Environmental Science 1104, no. 1 (2022): 012035. http://dx.doi.org/10.1088/1755-1315/1104/1/012035.

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Abstract Polymer flooding is an Enhanced oil recovery (EOR) method using chemicals, such as xanthan gum and polyacrylamide which are widely used in the field. Polymer flooding can improve the mobility of the injection fluid, but in the reservoir the polymer has an interaction with sand known as adsorption which causes some of the polymer to be bound to the surface of the pore of sand, so that it has an impact on the ineffectiveness of the injection. The purpose of this study want to determine and compare the effect of sand grain on the adsorption of xanthan gum and polyacrylamide polymer solut

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Lamnii, Hamza, Moussa Nait-Abdelaziz, Georges Ayoub, Jean-Michel Gloaguen, Ulrich Maschke, and Bilal Mansoor. "Effect of UV Ageing on the fatigue life of bulk polyethylene." MATEC Web of Conferences 165 (2018): 08002. http://dx.doi.org/10.1051/matecconf/201816508002.

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Polymers operating in various weathering conditions must be assessed for lifetime performance. Particularly, ultraviolet (UV) radiations alters the chemical structure and therefore affect the mechanical and fatigue properties. The UV irradiation alters the polymer chemical structure, which results into a degradation of the mechanical and fatigue behavior of the polymer. The polymer properties degradation due to UV irradiation is the result of a competitive process of chain scission versus post-crosslinking. Although few studied investigated the effect of UV irradiation on the mechanical behavi

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Kayumov, R. R., A. A. Nizameev, R. R. Mardanov, and M. F. Akhatov. "STUDY OF THE EFFECT OF LOW-TEMPERATURE PLASMA BETWEEN ELECTROLYTIC ELECTRODES ON POLYMER SURFACES." Journal of Physics: Conference Series 2270, no. 1 (2022): 012017. http://dx.doi.org/10.1088/1742-6596/2270/1/012017.

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Abstract In the modern world, polymers are used in almost all areas. Modification of polymer surfaces is an urgent task. Increasing adhesion and wettability is one of the important parameters. There are many different methods for increasing adhesion and wettability. The electrolytic plasma method is one of them. After processing the surface of the polymer by this method, the wettability of the surface of modified polymers with water was studied by measuring the size of a drop of technical water on the surface of the polymer. As a result of experimental studies, the modification of polyethylene

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Quezada, Gonzalo R., Norman Toro, Jorge Saavedra, et al. "Molecular Dynamics Study of the Conformation, Ion Adsorption, Diffusion, and Water Structure of Soluble Polymers in Saline Solutions." Polymers 13, no. 20 (2021): 3550. http://dx.doi.org/10.3390/polym13203550.

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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 polyac

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Maraveas, Chrysanthos, Ioannis Vasileios Kyrtopoulos, Konstantinos G. Arvanitis, and Thomas Bartzanas. "The Aging of Polymers under Electromagnetic Radiation." Polymers 16, no. 5 (2024): 689. http://dx.doi.org/10.3390/polym16050689.

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Polymeric materials degrade as they react with environmental conditions such as temperature, light, and humidity. Electromagnetic radiation from the Sun’s ultraviolet rays weakens the mechanical properties of polymers, causing them to degrade. This study examined the phenomenon of polymer aging due to exposure to ultraviolet radiation. The study examined three specific objectives, including the key theories explaining ultraviolet (UV) radiation’s impact on polymer decomposition, the underlying testing procedures for determining the aging properties of polymeric materials, and appraising the cu

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Kikuchi, Hirotsugu, Takahiro Ashimine, Zehui Qin, Hiroki Higuchi, Shizuka Anan, and Yasushi Okumura. "Enhancement of Polymer Structural Ordering in Polymer-Stabilised Blue Phases for Improved Electro-Optical Properties." Symmetry 13, no. 5 (2021): 772. http://dx.doi.org/10.3390/sym13050772.

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Polymer-stabilised blue phase (PSBP) could be employed in novel fast response optical and photonic devices. It is inferred that inside PSBPs, the polymers are selectively aggregated by location in −1/2 disclinations, which are defects coexisting with the blue phase as a periodic lattice, thereby extending the temperature range of the blue phase. The polymer aggregate structure in PSBPs strongly affects their physical properties. In this study, we employed a non-destructive synchrotron ultra-small-angle X-ray diffraction analysis to investigate the effect of polymerisation rates on the polymer

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Choi, Junhwan, and Hocheon Yoo. "Combination of Polymer Gate Dielectric and Two-Dimensional Semiconductor for Emerging Field-Effect Transistors." Polymers 15, no. 6 (2023): 1395. http://dx.doi.org/10.3390/polym15061395.

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Two-dimensional (2D) materials are considered attractive semiconducting layers for emerging field-effect transistors owing to their unique electronic and optoelectronic properties. Polymers have been utilized in combination with 2D semiconductors as gate dielectric layers in field-effect transistors (FETs). Despite their distinctive advantages, the applicability of polymer gate dielectric materials for 2D semiconductor FETs has rarely been discussed in a comprehensive manner. Therefore, this paper reviews recent progress relating to 2D semiconductor FETs based on a wide range of polymeric gate

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Stroganov, I. V., and V. F. Stroganov. "Polymer–Polymer Modification when Obtaining Epoxy/Allyl Polymers with a Shape-Memory Effect." Polymer Science, Series D 11, no. 1 (2018): 11–19. http://dx.doi.org/10.1134/s1995421218010227.

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Głuszewski, Wojciech, Andrzej Stasiek, Aneta Raszkowska-Kaczor, and Daniel Kaczor. "Effect of polyethylene cross-linking on properties of foams." Nukleonika 63, no. 3 (2018): 81–85. http://dx.doi.org/10.2478/nuka-2018-0010.

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Abstract The process of cross-linking of polyethylene using gamma radiation (γ) and electron beam (EB) was tested from the point of view of density of foam. Particular attention was paid to the postradiation oxidation effect of the polymers. The study used two types of radiation sources of varying dose rates: gamma radiation (4 kGy/h) and EB (14 000 kGy/h). Radiolysis studies of the polymers used the radiation yield of hydrogen evolved (GH2, approximately proportional to the number of radicals) and radiation yield of oxygen absorbed by the polymer (GO2). Oxidation of polymer due to radiation w

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Hezekiah-Braye, Oritom, and Abu Robin Nyemenim. "The Effect of Polymers on Permeability During Polymer Flooding." Journal of Engineering Research and Reports 27, no. 4 (2025): 347–53. https://doi.org/10.9734/jerr/2025/v27i41476.

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Polymers are used for conformance control to block or reduce the fluid transmissibility of high permeability channel without causing formation damage to the less permeable channel which could result in complete shut off the displacing fluid from entering and displacing oil from such zones. This research used convectional polymers such as hydrolyzed polyacrylamide, xanthan gum and a local polymer obtained from caladium bicolor tuber to compare the permeability alteration of this polymer and its oil recovery ability using four core samples obtained from a Niger delta reservoir. The result after

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Xia, Hongyan, Chang Hu, Tingkuo Chen, Dan Hu, Muru Zhang, and Kang Xie. "Advances in Conjugated Polymer Lasers." Polymers 11, no. 3 (2019): 443. http://dx.doi.org/10.3390/polym11030443.

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This paper provides a review of advances in conjugated polymer lasers. High photoluminescence efficiencies and large stimulated emission cross-sections coupled with wavelength tunability and low-cost manufacturing processes make conjugated polymers ideal laser gain materials. In recent years, conjugated polymer lasers have become an attractive research direction in the field of organic lasers and numerous breakthroughs based on conjugated polymer lasers have been made in the last decade. This paper summarizes the recent progress of the subject of laser processes employing conjugated polymers,

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Lu, Qiran, and Rajinder Pal. "Steady Shear Rheology and Surface Activity of Polymer-Surfactant Mixtures." Polymers 17, no. 3 (2025): 364. https://doi.org/10.3390/polym17030364.

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Understanding the interactions between polymers and surfactants is critical for designing advanced fluid systems used in applications such as enhanced oil recovery, drilling, and chemical processing. This study examines the effects of five surfactants: two anionic (Stepanol WA-100 and Stepwet DF-95), one cationic (HTAB), one zwitterionic (Amphosol CG), and one non-ionic (Alfonic 1412-3 Ethoxylate), on the steady shear rheology and surface activity of two polymers, namely cationic hydroxyethyl cellulose based polymer (LR-400) and anionic polyacrylamide based polymer (Praestol 2540TR). The polym

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Zuchairah, I. M., M. T. Pailthorpe, and S. K. David. "Effect of Glow Discharge-Polymer Treatments on the Shrinkage Behavior and Physical Properties of Wool Fabric." Textile Research Journal 67, no. 1 (1997): 69–74. http://dx.doi.org/10.1177/004051759706700113.

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The application of glow discharge plasma to the surface of wool fabric is known to increase fiber hydrophilicity and confer a partial shrink resist effect during washing. In this work, four different polymer systems, Basolan SW, Basolan MW, Polymer G, and Polymer PL, are applied onto plasma treated wool fabric to enhance the degree of shrink resistance. The level of shrink resistance varies significantly with plasma-polymer treatments, depending on the kind of polymer system applied, with Polymers PL and G conferring excellent shrink resistance even for very short plasma pretreatment times of

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Shurshina, Anzhela, Roman Lazdin, Elena Zakharova, Anastasiya Titlova, and Elena Kulish. "Prolonging effect of polyvinyl alcohol on the drug release." Chimica Techno Acta 9, no. 2 (2022): 20229206. http://dx.doi.org/10.15826/chimtech.2022.9.2.06.

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Polymers are currently of interest as drug delivery systems. The use of polymeric forms of medicinal substances will eliminate or reduce the disadvantages of traditional drugs. The purpose of this work was to assess the ability to prolong the action of polyvinyl alcohol in relation to the drug release when going from dilute to more concentrated solutions. It was established that an increase in the viscosity of the polymer in solution caused by an increase in its concentration results not only in a slowdown in the diffusion of drugs from the polymer solution, but also in a significant decrease

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