High molecular weight polyacrylamide nanoparticles
High molecular weight polyacrylamide (PAM) nanoparticle dispersions are products with wide application possibilities, the most important of which is in petroleum industry such as drilling fluid and flooding agent in enhanced oil recovery. For that aim, it is necessary to achieve complete control of the final dispersion and polymer properties during the synthesis step.
Inverse Emulsion Polymerization for the Synthesis of High Molecular Weight Polyacrylamide and Its Application as Sand Stabilizer.pdf Available via license: CC BY 3.0 Content may be subject to
Synthesis of High Molecular Weight Cationic Polyacrylamide
Cationic polyacrylamide is a derivative of polyacrylamide, a cationic polymer flocculant which has an excellent effect on sewage treatment. Our existing cationic polyacrylamide are mostly prepared by the Mannich reaction ,which has the shortcomings of more unreacted material, low cationic degree, poor stability, short validity, etc. Therefore, a cationic polyacrylamide has been prepared by
Low temperatures promote synthesis of high mol ecular weight PAM (Lin, 2001). Actually, elevating the reaction temperature causes decrease in molecular weight on account of increase in the rate of
Synthesis of million molecular weight polyacrylamide with
Considering the reaction features, a microreactor is designed to carry out the reaction, as shown in Fig. 1(a). In this platform, the acrylamide aqueous solution and the K 2 S 2 O 8 solution mix first in a T-junction connector, which was made from polyetheretherketone, (PEEK, a chemically inert material, purchased from DaXiang Plastics, China) and had a 0.5 mm inner diameter (ID).
Cationic polyacrylamide is a derivative of polyacrylamide, a cationic polymer flocculant which has an excellent effect on sewage treatment. Our existing cationic polyacrylamide are mostly prepared by the Mannich reaction ,which has the shortcomings of more unreacted material, low cationic degree, poor stability, short validity, etc. Therefore, a cationic polyacrylamide has been prepared by
Synthesis of million molecular weight polyacrylamide with
Synthesis of million molecular weight polyacrylamide with droplet flow microreactors. Million molecular weight polymers are obtained in the microreactors. and the thermal-initiated reaction was found to be suitable for preparing high molecular weight polyacrylamide (>1000 kg/mol).
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Inverse Emulsion Polymerization for the Synthesis of High
Inverse Emulsion Polymerization for the Synthesis of High Molecular Weight Polyacrylamide and Its Application as Sand Stabilizer MahmoudA.Mohsin1 andNuhaF.Attia2
What is claimed is: 1. A process for the homopolymerization of acrylamide and for the copolymerization of acrylamide with vinyl monomers to produce ultra-high molecular weight water soluble polymers comprising initiating said homopolymerization or said copolymerization with a ferrous/hydroperoxide redox initiator system and carrying out said homopolymerization or said copolymerization in an
Inverse Emulsion Polymerization for the Synthesis of High
Experimental conditions were designed to produce high molecular weight polymers that can be used in stabilization of sand dunes in the arid regions. Synthesized polyacrylamide samples were characterized using Gel Permeation Chromatography and solution viscosity in order to determine the molecular weights and molecular weights distribution.
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- Who is Iro water treatment chemicals manufacturer?
- Water Treatment Chemicals Manufacturer. B2B Chemicals Supplier - IROWATER Shandong IRO Water Treatment Co., Ltd is a Global Leader in the production of water treatment chemistry. IRO specializes in the products that water treatment professionals utilize such as phosphonates, polymers, biocides and other related chemistries.
- What oxidants can be used to remove iron from water?
- Oxidants generally employed for remediation of iron from water include hypochlorite, potassium permanganate (KMnO 4), hydrogen peroxide, chlorine, ozone and chlorine dioxide. An optimal dosage of the oxidant needs to be maintained during the water treatment .
- How effective is co-treatment for iron removal from mine water?
- The co-treatment showed 40–80% iron removal efficiency from mine water . Mine waste generally contains acidic waters. In a study, wetland microcosms having horizontal flow have been utilized for the removal of iron from such acidic waters.
- What type of CCBM is used to remove iron from groundwater?
- In another study, different types of CCBMs (limestone, marble, dolomite and concrete) have been utilized for the in situ removal of iron from groundwater. The limestone showed maximum removal efficiency by decreasing concentration of iron from 50 to 0.01 mg/L.
