good effect polymer anionic polyacrylamide hpam

us5693762a - google patents

US5693762A - Google Patents

Each humanized immunoglobulin chain will usually comprise, in addition to the CDR's, amino acids from the donor immunoglobulin framework that are, e.g., capable of interacting with the CDR's to effect binding affinity, such as...

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publications - prof paul f. luckham

Publications - prof paul f. luckham

salinity effect’ using different crude oil, brine and rock compositions.... using anionic hydrolyzed polyacrylamide (HPAM) in a microfluidic flow... Flexible coiled polymers in porous media undergo stretching in a spatially...

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a review on applications of nanotechnology in the enhanced oil recover....

A review on applications of nanotechnology in the enhanced oil recover....

[24] showed that in case nanoparticles and anionic surfactants are used at... hydrolyzed polyacrylamide (HPAM), cannot completely meet the requirements... The effect of shearing on polymer viscosity and oil recovery was... Springer Link

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us5530101a - humanized immunoglobulins - google patents

US5530101A - Humanized immunoglobulins - Google Patents

, capable of interacting with the CDR's to effect binding affinity, such as one or more amino acids which are... to anionic phospholipids and aminophospholipids and their use in treating viral infections and cancer...

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publications - professor daryl williams

Publications - Professor Daryl Williams

A low cost and water-soluble polymer, hydrolyzed polyacrylamide (HPAM)... the anionic carboxylate of PFOA and the amine functionality present in the... Thus, the oil droplets and the acid-base polymers attract ions of opposite...

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unique rheology of high acyl gellan gum and its potential applications....

Unique rheology of high acyl gellan gum and its potential applications....

The polymer is a linear anionic heteropolysaccharide composed of... HPAM (partially hydrolyzed polyacrylamide) has been the widely used polymer for commercial polymer injection projects. However, HPAM severely degrades... Springer Link

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polyacrylamide degradation and its implications in

Polyacrylamide degradation and its implications in

The hydrolyzed form of polyacrylamide (HPAM), a co-polymer of acrylamide and acrylic acid, is the most widely used anionic PAM in oil and gas development as well as in soil conditioning. 1,9,12,21

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anionic polyacrylamide (hpam) olymers for agriculture use for

anionic polyacrylamide (hpam) olymers for agriculture use for

Anionic polyacrylamide is a copolymer of acrylamide and sodium acrylate monomers, which is also known as hydrolyzed polyacrylamide (HPAM) as shown in Schemes 1 and 2 below. These schemes illustrate polymer synthetic routes and structures.

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interaction between the strong anionic character of strong

Interaction between the strong anionic character of strong

The copolymerization of acrylamide, sodium 2‐acrylamido‐2‐methyl propane sulfonate, and styrene was carried out in a microemulsion medium, and ternary copolymers based on polyacrylamide, which contained both strong anionic groups ( SO 3 Na) and hydrophobic blocks (polystyrene), were synthesized.

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synthesis and application of anionic polyacrylamide in water

Synthesis and Application of Anionic Polyacrylamide in Water

Partially hydrolyzed polyacrylamide (HPAM) is the most widely used water-soluble non-toxic polymer in water treatment (Zheng et al., 2013), paper mills (Wong et al., 2006), ore processing and

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drag reduction behavior of hydrolyzed polyacrylamide/xanthan

Drag reduction behavior of hydrolyzed polyacrylamide/xanthan

Partially hydrolyzed polyacrylamide (HPAM) as the main component of slickwater fracturing fluid is a shear-sensitive polymer, which suffers from mechanical degradation at turbulent flow rates. Five different concentrations of HPAM as well as mixtures of polyacrylamide/xanthan gum were prepared to investigate the possibility of improving shear stability of HPAM. Drag reduction (DR) measurements

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theoretical studies of hydrolysis and stability of

Theoretical studies of hydrolysis and stability of

Water-soluble polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) polymers are among the most commonly used chemicals in oilfield applications. In polymer-augmented water-flooding Enhanced Oil Recovery (EOR) processes, HPAM polymers are often used as mobility-control agents to increase the viscosity of stimulation fluids in

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theoretical studies of hydrolysis and stability of

Theoretical studies of hydrolysis and stability of

Effect of Divalent Cations. HPAM polymers are known to be unstable at elevated temperatures if divalent cations are present (Davison and Mentzer 1982, Zaitoun and Potie 1983, Moradi-Araghi and Doe

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investigation of the degradation and stability of acrylamide

Investigation of the degradation and stability of acrylamide

The viscosity relationship between 1% HCl polymer solution and 10% HCl polymer solution derived from identical polymers declined according to the following relation: PAM > AM-AMPS > HPAM > AM-DMDAAC. The changes in polymer weight indicated that high concentration hydrochloric acid results in the direct fracture of the polymer backbone.

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water-soluble polymers anionic polyacrylamide for lebanon

Water-soluble polymers anionic polyacrylamide for Lebanon

Anionic polymers are usually copolymers (polymers containing two types of monomer units) of acrylamide and acrylic acid, sodium acrylate or another anionic monomer. The charge is located on a pendant group sticking off from the polymer chain backbone. China Polyacrylamide Manufacturers and Suppliers. APAM Anionic Polyacrylamide Polymer.

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polymer properties database

Polymer Properties Database

Even though these polymers are called polyacrylamide, they are often copolymers of acrylamide and one or more other monomers. The most important co-monomer is acrylic acid or sodiumacrylate. Poly(acrylamide-co-acrylic acid) and its sodium salt are anionic polymers which are more effective as flocculant and water absorber.

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