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Reasonable Design Zwitterionic Temperature-Resistant Salt-Resistant Polyacrylamide

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Design of Tribologically Enhanced Polymeric Materials for ...

Design of Tribologically Enhanced Polymeric Materials for ...

Oct 26, 2016 · 4.2.3 Zwitterionic Polymer Brush Functionalization Fully hydrated PVA-H were immersed in ethanol for 48 h followed by 24 h in a vacuum oven at room temperature at -100 kPa (Isotemp Vacuum Oven, Fisher Scientific). ATRP initiator functionalization was achieved by immersing dehydrated PVA-H in NMP containing 0.4 M
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Self-Healable Antifouling Zwitterionic Hydrogel Based on ...

Self-Healable Antifouling Zwitterionic Hydrogel Based on ...

Zwitterionic ocapsules with Salt- and Thermo-Responsiveness for Controlled Encapsulation and Release. ... Fatigue‐Resistant, Notch‐Insensitive Zwitterionic Polymer Hydrogels with High Self‐Healing Ability. ... Design and Applications of Photoresponsive Hydrogels. Advanced Materials 2019, 31 ...
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Composition‐dependent membrane disruption by the ...

Composition‐dependent membrane disruption by the ...

Jun 22, 2018 · Again, as a control, the 31 P spectrum of PC odiscs did not shbation without PB1F2 at the same temperature (Fig. S6). We verified the lipid dependency and selectivity for zwitterionic lipids in odiscs systems.
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DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS - …

DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS - …

Jul 06, 2017 · DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS . United States Patent Application . Kind Code: ... the enzyme layer comprises an enzyme and a polymer comprising polyurethane and/or polyurea segments and one or more zwitterionic repeating units. The enzyme layer protects the enzyme and prevents it from leaching from the sensing ...
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Synthesis and properties of zwitterionic gemini ...

Synthesis and properties of zwitterionic gemini ...

Aug 01, 2020 · These zwitterionic gemini surfactants were confirmed that they have good solubility in distilled water and Ping 188 injected water. The zwitterionic gemini surfactants YLZ-3 exhibits a lower CMC and better wettability, surface/interface activity, salt resistance, divalent cationic resistance, emulsifiability, and have a lower adsorption value.
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DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS - …

DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS - …

Jul 06, 2017 · DIFFUSION RESISTANCE LAYER FOR ANALYTE SENSORS . United States Patent Application . Kind Code: ... the enzyme layer comprises an enzyme and a polymer comprising polyurethane and/or polyurea segments and one or more zwitterionic repeating units. The enzyme layer protects the enzyme and prevents it from leaching from the …
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Study on salt thickening mechanism of the amphiphilic ...

Study on salt thickening mechanism of the amphiphilic ...

Jul 31, 2017 ·usion system was used to investigate the salt thickening mechanism of poly [acrylamide-co-N, N′-dimethyl (methylmethacryloyl ethyl) ammonium propane sulfonate-co-cetyl dimethyl allyl ammonium chloride] (PADC). The salt thickening behavior of PADC solution was studied by rotational viscometer, and its average …
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Zwitterionic ogels and Microgels: An Overview on Their ...

Zwitterionic ogels and Microgels: An Overview on Their ...

May 22, 2021 · 2 Synthesis of Zwitterionic ogels and Microgels. Unlike the synthesis of polyampholyterporation of both positively charged and negatively charged monomers makes it difficult to regulate the solution pH during the synthesis steps, [] for zwitterionic microgels, regulating the pH is relatively simpler. Zwitterions contain …
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Zwitterionic copolymer for controlling fluid loss in ...

Zwitterionic copolymer for controlling fluid loss in ...

Jan 01, 2017 · Polyvinyl alcohol fluid loss additive has good performance at low temperature (below 100[degrees]C), but it is scarcely any salt-resistance [6]. The ployacrylamide (PAM) fluid loss additive is applied widely, but whose amide groups willeasing of BHCT which lead to super retarding for cement slurry system [7, 8].
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Thermal-resistant, shear-stable and salt-tolerant ...

Thermal-resistant, shear-stable and salt-tolerant ...

Aug 28, 2019 · Temperature resistance. Temperature resistance was evaluated by measuring the change of theasing temperature. The apparent viscosities of 2% PAM/sSGO in 200000 mg/L NaCl solution were measured from 30° to 120 °C at a heating rate of 3 °C/min. The measurement was taken at a constant shear rate of 170 s −1.
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The solution behavior of hydrophobically associating ...

The solution behavior of hydrophobically associating ...

Hongping Quan, Zhuoke Li, Zhiyu Huang, Self-assembly properties of a temperature- and salt-tolerant amphoteric hydrophobically associating polyacrylamide, RSC Advances, 10.1039/C6RA05779A, 6, 54, ), (2016).
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rporation of Partially Hydrolyzed Polyacrylamide With ...

rporation of Partially Hydrolyzed Polyacrylamide With ...

Dec 20, 2021 · Partially hydrolyzed polyacrylamide (HPAM) was widely implemented to improve the rheological properties of displacing fluids, but the high temperature and salinity of the reservoir brine limited their appuding HPAM, zwitterion-modified HPAM (z-HPAM), PEG-modified HPAM (p-HPAM), and zwitterion/PEG-modified HPAM (zp …
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Rational design of electrospun ofibrous materials for ...

Rational design of electrospun ofibrous materials for ...

Rational design of electrospun ofibrous materials for oil/water emulsion separation. Jichao Zhang a, Lifang Liu a, Yang Si * ab, Jianyong Yu ab and Bin Ding * ab a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Textiles, Donghua University, 201620, China.
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Associating Copolymer Acrylamide/Diallyldimethylammonium ...

Associating Copolymer Acrylamide/Diallyldimethylammonium ...

Apr 13, 2017 · Drilling fluids must possess optimal rheological properties, such as shear thinning and thixotropy, and the key materials to control these properties for clay-free and water-based drilling fluids (CFWBDFs) are organic polymers. To overcome the challenge, associating copolymer P(AM/DMDAAC/BA/AMPS) (ADBA) of acrylamide (AM), cationic monomer …
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Salting-in Effect of Zwitterionic Polymer Hydrogel ...

Salting-in Effect of Zwitterionic Polymer Hydrogel ...

Zwitterionic polymers possess oppositely charged cationic and anionic groups simultaneously along their main and/or side chains. (35−40) Because of the presence of opposite charges, such polymers are typically stimuli-responsive to temperature, pH, …
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Salting-in Effect of Zwitterionic Polymer Hydrogel ...

Salting-in Effect of Zwitterionic Polymer Hydrogel ...

Interfacial solar heating based on a salt-resistant GO-based aerogel is now shown to enable a high-concn. liq. sorbent (CaCl2 50 wt % soln.) based atm. water generator. Fresh water (2.89 kg m-2 day-1) can be produced at about 70 % relative humidity, with only solar energy input and energy efficiency of desorption as high as 66.9 %.
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Fabrication of Polysulfobetaine Gradient Coating via ...

Fabrication of Polysulfobetaine Gradient Coating via ...

Feb 16, 2022 · A surface with a gradient physical or chemical feature, such as roughness, hardness, wettability, and chemistry, serves as a powerful platform for high-throughput investigation of cell responses to a biointerface. In this work, we developed a continuous antifouling gradient surface using pyrogallol (PG) chemistry. A copolymer of a zwitterionic …
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Fundamentals and applications of zwitterionic antifouling ...

Fundamentals and applications of zwitterionic antifouling ...

Jul 26, 2019 · [50] Shao Q and Jiang S 2015 Molecular understanding and design of zwitterionic materials Adv. Mater. 27 15–26. Go to reference in article Crossref Google Scholar [51] Shao Q and Jiang S 2014 Influence of charged groups on the properties of zwitterionic moieties: a molecular simulation study J. Phys. Chem. B 118 7630–7
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Associating Polymer with High Salt and Heat Tolerance in ...

Associating Polymer with High Salt and Heat Tolerance in ...

Abstract: ZID16PM, a zwitterionic hydrophobic associating polymer, has equivalent positive and negative charges and some hydrophobic monomers with twin-tailed long hydrophobic chains. It exhibits a great heat resistance and salt tolerance to the common salt in formation brine (MgCl2,
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Gels | Free Full-Text | Novel Trends in the Development of ...

Gels | Free Full-Text | Novel Trends in the Development of ...

Dec 12, 2021 · Addition of a benzene sulfonate group in the polar head of a gemini zwitterionic surfactant with C22 tails (EDBS) allowed the obtaining of a viscoelastic WLM solution with combined good temperature and salt resistance: it withstood shearing at 170 s −1 and 120 °C for 120 min in the 25% standard brine solution .
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Zwitterionic Hydrogel with High Transparency ...

Zwitterionic Hydrogel with High Transparency ...

Also, the zwitterionic hydrogel shows good biocompatibility and protein adsorption resistance. The zwitterionic Ca-GG/PAAm-ZP DN hydrogel-based strain sensor can accurately monitor human motions ...
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Molecular design of modified polyacrylamide for the salt ...

Molecular design of modified polyacrylamide for the salt ...

The synergistic effect of zwitterion units and PEG units endows the zp-HPAM with good salinity and temperature resistance; thus, the sample viscosity under …
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Application of molecular simulation in tertiary oil ...

Application of molecular simulation in tertiary oil ...

Jan 24, 2022 · 1. Introduction. With the continuous development and improvement of tertiary oil recovery technology, various surfactants, polymers and gas molecules with unique structure and performance characteristics have gradually become an important research object, which provides a broad prospect for the further development and utilization of remaining crude oil in the …
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Advanced Functional Materials: Early View

Advanced Functional Materials: Early View

Novel hemi-isoindigo-based conductive polymers are developed for green solvent-processed, flexible resistor-type temperature sensors. The sensor devices can be operated with a low voltage of 1 V, have a high temperature coefficient of resistance of up to −1.92% °C −1 in the temperature range of 25–60 °C and are very stable.
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Effect of temperature on Burkholderia pseudomallei growth ...

Effect of temperature on Burkholderia pseudomallei growth ...

Jun 15, 2018 · Resistance to salt at 37 °C may provide a major benefit for B. pseudomallei stability in environmental niches where the bacteria encounter a …
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Design of Polymeric Zwitterionic Solid Electrolytes with ...

Design of Polymeric Zwitterionic Solid Electrolytes with ...

Jan 04, 2022 · Progress toward durable and energy-dense lithium-ion batteries has been hindered by instabilities at electrolyte–electrode interfaces, leading to poor cycling stability, and by safety concerns associated with energy-dense lithium metal anodes. Solid polymeric electrolytes (SPEs) can help mitigate these issues; however, the SPE conductivity is limited by sluggish polymer …
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Rion batteries - IOPscience

Rion batteries - IOPscience

Oct 01, 2021 · Additionally, regulating electrochemical performance was achieved by reasonable design for flexible gel electrolytes. Fig. 7(d) revealed that particularly designed zwitterionic sulfobetaine/cellulose semi-interpenetrating networks gel (ZSC-gel) provided high ion conductivity (24.6 mS/cm) for flexible ZIBs.
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A supramolecular biomimetic skin ... - Nature Communications

A supramolecular biomimetic skin ... - Nature Communications

Mar 19, 2018 · j Resistance–temperature cycling curves in the temperature range of 10–50 °C Full size image The relationships amoung deformation, temperature, capacitance, and resitance are also predictable.
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A review of development methods and EOR technologies for ...

A review of development methods and EOR technologies for ...

Jun 03, 2020 · A considerable number of new temperature- and salt water-resistant gel polymers have been prepared to reduce syneresis during the displacement process. Although several novel acrylamide polymers have been reported in the literature, only a few have been industrialized (Singh and Mahto 2016 ; Chen et al. 2018 ).
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Study on salt thickening mechanism of the amphiphilic ...

Study on salt thickening mechanism of the amphiphilic ...

The synergistic effect of zwitterion units and PEG units endows the zp-HPAM with good salinity and temperature resistance; thus, the sample viscosity …
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Skin-like mechanoresponsive self-healing ionic elastomer ...

Skin-like mechanoresponsive self-healing ionic elastomer ...

Jul 02, 2021 · Molecular design and skin-like nonlinear mechanoresponse of PAA/zwitterion elastomers. a Molecular structures and pK a values of zwitterions and polyacrylic acid (PAA) for the preparation of proton-conductive ionic skins. b A transparent PAA/betaine elastomer film was stretched 12 times.c Schematic structure of PAA/betaine elastomer before and after stretch …
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A zwitterionic gel electrolyte for efficient solid-state ...

A zwitterionic gel electrolyte for efficient solid-state ...

May 26, 2016 · In a word, applying the zwitterionic gel electrolyte, the graphene-based solid-state supercapacitor reaches a volume capacitance of 300.8 F cm −3 at 0.8 A cm −3 with a rate capacity of only 14 ...
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Viscosity Study of Salt Tolerant Polymers | Request PDF

Viscosity Study of Salt Tolerant Polymers | Request PDF

The gelant showed excellent salt and pH resistance under reservoir conditions as reflected by mechanical integrity of in situ bulk gel. ... betaine zwitterionic polymer than Ca 2+ (1.12 Å) [26,27 ...
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The Role of Zwitterionic Materials in the Fight against ...

The Role of Zwitterionic Materials in the Fight against ...

Nov 22, 2018 · 3. Significance of Zwitterionization of Biomaterials. The development of zwitterionic bioceramics to inhibit unspecific protein adsorption was reported for the first time in 2010 by Colilla et al. [].Previously, Jiang and co-workers had described the zwitterionization to develop polymeric and metallic biomaterials fulfilling the ultralow-fouling criterion (<5 ng/cm 2) …
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Methicillin-resistant Staphylococcus aureus alters cell ...

Methicillin-resistant Staphylococcus aureus alters cell ...

Nov 21, 2018 · Methicillin-resistant Staphylococcus aureus (MRSA) is a frequent cause of difficult-to-treat, often fatal infections in humans1,2. Most humans have antibodies against S. aureus, but these are ...
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Skin-like mechanoresponsive self-healing ionic elastomer ...

Skin-like mechanoresponsive self-healing ionic elastomer ...

Jul 02, 2021 · f Temperature-induced real-time resistance changes of PAA/betaine elastomer between −25 and 70 °C. g Schematic structure for the PAA/betaine elastomer-based iontronic pressure sensor.
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