High Molecular Weight Anionic Polyacrylamide - 10% Charge
High molecular weight anionic polyacrylamide a mole charge of 10% that has been developed for use in wastewater and effluent treatment applications. Accepta 4211 is ideal for use in mechanical dewatering, gravity settling, as a coagulant aid, water clarification, filtration, phosphate removal and as an aid in Dissolved Air Flotation (DAF)...
Cationic Polyelectrolyte High Molecular Weight 10 - 12million , Find Complete Details about Cationic Polyelectrolyte High Molecular Weight 10 - 12million,Cationic Polyacrylamide,Cationic Polyacrylamide,Cationic Polyacrylamide Cpam from Electronics Chemicals Supplier or Manufacturer-.
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
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US9644320B2 - High molecular weight and high cationic
US9644320B2 US14/913,750 US201414913750A US9644320B2 US 9644320 B2 US9644320 B2 US 9644320B2 US 201414913750 A US201414913750 A US 201414913750A US 9644320 B2 US9644320 B2 US 9644320B2 Authority US United States Prior art keywords weight copolymer glyoxalated cationic cationic copolymer Prior art date 2013-09-09 Legal status (The legal status is an assumption and is not a legal conclusion.
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Synthesis of a cationic polyacrylamide with high molecular
Jin Xiaoxia, Sun Ji, Wang Hui (CNOOC Tianjin Research and Design Institute of Chemical Industry, Tianjin 300131, China);Research on the synthesis of the low-molecular weight cationic polyacrylamide[J];Industrial Water Treatment;2009-05 4
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High Molecular Weight Cationic Polyacrylamide - 35% Mole
High molecular weight cationic polyacrylamide with a mole charge of 35%. Accepta 4221 is a very versatile dry polymer that is particularly useful for wastewater treatment applications including belt filter, centrifuge and screw press de-watering, water clarification, filtration, thickening or use in a Dissolved Air Flotation plant...
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cationic polyacrylamide ,cationic polyacrylamide
Flopam FO4190 VHM is a kind of cationic polyacrylamide with 10-15% charge and medium molecular weight.Chinafloc C1312 can replace of FO4190 VHM totally with good performance. Cationic polyacrylamide of Zetag 8125 can be replaced by Chinafloc C2012
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Biobased polymers and cationic microfibrillated cellulose
A commercial cationic polyacrylamide (CPAM) of high molecular weight (about 1.10 6) from BASF (Percol ® 55) was diluted at 0.1% (w/w) by dissolving it in deionized water under stirring. An aqueous solution of polyethylenesulfonate sodium salt (PES-Na) from Noviprofibre with a molecular weight of about 500,000 and a concentration of 10 −3 mol
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EPO - T 0025/89 () of 7.5.1991
Since, however, none of the prior art documents cited in the proceedings teaches the use of low anionic polymers consisting of copolymers of acrylamide and 1 to 10 mole% acrylic acid and having a high molecular weight of above one million as fibre retention aid for newsprint or fluting medium manufacture, the Board cannot consider it obvious to
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The influence of high application rates of polyacrylamide
The polyacrylamide copolymer used was a dry granular material having an approximate molecular weight of 12–15 Mg mole −1, with an 18% negative charge density (provided by CYTEC Industries of Wayne, NJ and marketed under the trade name Superfloc 836A).PAM application involved the spread of granular PAM on the surface of an approximately 0.1 m 2 area in the furrow, corresponding to the first
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Hydrolysis of polyacrylamide and acrylic acid–acrylamide
The hydrolysis of polyamides has been studied in buffered acid solution at 110°C. at an amide concentration of 0.05 M.In the case of polyacrylamide, the reaction was carried out in acetate buffer at different values of the ratio r (acetic acid/sodium acetate). The initial velocity is low and is proportional to the concentration of acetic acid; the rate constant is equal to 2.6 × 10 −6
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Methods of making and using high molecular weight
Methods of making and using high molecular weight acrylamide polymers Abstract. Dispersions of finely divided high molecular weight polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer without undesirable side chain reactions to form high molecular weight anionic acrylamide polymers.
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Study on Interfacial Interaction between Hydrophobically
Abstract: The interfacial dilational viscoelastic properties of hydrophobically associating block copolymer composed of acrylamide (AM) and a low amount of 2-ethylhexyl acrylate (EHA) (＜ 1.0% mole fraction) with a hydrolysis degree of about 1.5%～2.0% at the octane-water interfaces were investigated by interfacial tension relaxation method. The influences of anionic surfactant sodium
Get PriceEffect of polyacrylamides and gypsum on turbidity of water
NSW was used in this study. Three replicates of LMW (5-8 Mg mole-1) and HMW (15-20 Mg mole-1) anionic PAM with HD (50%) or LD (10%) at the rates of 2.5 and 5 kg ha-1 and G at the rates of 25, 50, 75, 150, 300 and 600 kg ha-1 were used to treat the soil. G was applied by sprinkling onto the soil surface.
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Cross-linked cationic diblock copolymer worms are
A series of linear cationic diblock copolymer nanoparticles are prepared by polymerization-induced self-assembly (PISA) via reversible addition–fragmentation chain transfer (RAFT) aqueous dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) using a binary mixture of non-ionic and cationic macromo
Get PriceEffect of polyacrylamides and gypsum on turbidity of water
NSW was used in this study. Three replicates of LMW (5-8 Mg mole-1) and HMW (15-20 Mg mole-1) anionic PAM with HD (50%) or LD (10%) at the rates of 2.5 and 5 kg ha-1 and G at the rates of 25, 50, 75, 150, 300 and 600 kg ha-1 were used to treat the soil. G was applied by sprinkling onto the soil surface.
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Cross-linked cationic diblock copolymer worms are
A series of linear cationic diblock copolymer nanoparticles are prepared by polymerization-induced self-assembly (PISA) via reversible addition–fragmentation chain transfer (RAFT) aqueous dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) using a binary mixture of non-ionic and cationic macromo
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Low-weight polyethylenimine cross-linked 2-hydroxypopyl-β
PEI, with its high molecular weight of 25,000 Da, is regarded as one of the most efficient nonviral vehicles for gene silencing,16 but the strong positive surface charge on PEI causes severe cytotoxicity and nonspecific binding with serum proteins.14 On the other hand, low molecular weight PEI, such as PEI-600 Da, has very low cytotoxicity but
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Methods of making and using high molecular weight
Methods of making and using high molecular weight acrylamide polymers Abstract. Dispersions of finely divided high molecular weight polyacrylamide particles are formed and treated with a caustic material to hydrolyze the polymer without undesirable side chain reactions to form high molecular weight anionic acrylamide polymers.
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Desktop Review of Polyacrylamide use in the Australian
PAM of varying molecular weight suggests that PAM with high molecular weight is more effective than low molecular weight in improving infiltration rates and reducing erosion (Levy and Agassi, 1995). As mentioned before, it is difficult to vary molecular weight of PAM without modifying its ionic characteristics (charge density).
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Fabricating an anionic polyacrylamide (APAM) with an
Ultraviolet (UV)-initiated template polymerization (UTP) was used as a feasible strategy to prepare a novel anionic polyacrylamide (APAM) with a microblock structure. In the template copolymerization system, acrylamide (AM) and sodium allylsulfonate (SAS) were used as monomers, and poly (allylammonium chloride) (PA
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Inhibiting water infiltration with polyacrylamide
Infiltration of high molecular weight (10 to 15 Mg [mol.sup.-1], or 13 to 16.5 ton [mol.sup.-1]), anionic PAM solutions ponded on dry loamy san or presaturated sand columns decreased with increasing PAM concentration from 0 to 400 mg [L.sup.-1] (0 to 400 ppm) (Malik and Letey, 1992; Falatah et al., 1999).
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Frontiers | Water-Soluble and Insoluble Polymers
The polymeric materials have presented a great development in adsorption processes for the treatment of polluted waters. The aim of the current review is to present the recent developments in this field of study by examining research of systems like functional water-soluble polymers and water-soluble polymer-metal complexes coupled to ultrafiltration membranes for decontamination processes in
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Effect of polyacrylamides and gypsum on turbidity of water
NSW was used in this study. Three replicates of LMW (5-8 Mg mole-1) and HMW (15-20 Mg mole-1) anionic PAM with HD (50%) or LD (10%) at the rates of 2.5 and 5 kg ha-1 and G at the rates of 25, 50, 75, 150, 300 and 600 kg ha-1 were used to treat the soil. G was applied by sprinkling onto the soil surface.
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Agglomeration of Viruses by Cationic Lignin Particles
Virus contamination of water is a threat to human health in many countries. Current solutions for inactivation of viruses mainly rely on environmentally burdensome chemical oxidation or energy-intensive ultraviolet irradiation, which may create toxic secondary products. Here, we show that renewable plant biomass-sourced colloidal lignin particles (CLPs) can be used as agglomeration agents to
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Complexity in the binding of minor groove agents
INTRODUCTION. Compounds that bind in the minor groove are of current research interest for their therapeutic potential against diseases from cancer to a variety of infectious diseases and for biotechnology applications ().For example, the DNA minor groove continues to be an important target for the development of anti-cancer (1–5,15), anti-microbial and anti-viral compounds (6–9,12,14).
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Fabricating an anionic polyacrylamide (APAM) with an
Ultraviolet (UV)-initiated template polymerization (UTP) was used as a feasible strategy to prepare a novel anionic polyacrylamide (APAM) with a microblock structure. In the template copolymerization system, acrylamide (AM) and sodium allylsulfonate (SAS) were used as monomers, and poly (allylammonium chloride) (PA
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Effect of the Cationic Block Structure
Fortunately, the template polymerization technology can be used to synthesize the novel microblock structure in the polymer chain [10,11,12].Its basic principle is shown in Figure 2.Prior to the copolymerization, an anionic template named sodium polyacrylate (PAAS) is added into the reaction system and the cationic monomer is adsorbed and arranged on the molecular chain of the template under
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Chinese Journal of Chemical Engineering
Official Journals of CIESC 2014—2024 High Cited Articles Awards Official Journals of CIESC 2017—2024 Excellence in Review Awards CJChE Impact Factor 1.911(Rank:71/138, Q3); Citescore 2.12（Rank 79/272, Q2）
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Frontiers | Water-Soluble and Insoluble Polymers
The polymeric materials have presented a great development in adsorption processes for the treatment of polluted waters. The aim of the current review is to present the recent developments in this field of study by examining research of systems like functional water-soluble polymers and water-soluble polymer-metal complexes coupled to ultrafiltration membranes for decontamination processes in
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Assessment of Health Risks From Exposure to Acrylamide
----- LIST OF TABLES (CONTINUED) TABLE TITLE PAGE 8-6 Tumor Initiating Activity of Acrylamide in 8-37 the Skin of Female Swiss-ICR Mice 8-7 Lung Tumor Incidence in Swiss-ICR Mice Treated 8-38 with Acrylamide 8-8 Effects of Acrylamide Administered 8-40 Intraperitoneally on Development of Lung Adenomas in A/J Mice 9-1 Acrylamide Manufacturers, Locations, and Annual 9-2 Production Capacities 9-2
Get Price- What is a high molecular weight nonionic polyacrylamide?
- High-molecular-weight nonionic polyacrylamides are routinely used in the mineral processing industries as thickeners and flocculants , , . 34.2.5. Polyacrylamide product forms The product types for polyacrylamides are solutions, liquids (emulsion or dispersion), and dry powders.
- What is cationic polyacrylamide (CPAM)?
- Cationic polyacrylamide (CPAM) is one of the most frequently used flocculants with high intrinsic viscosity and charge density. This flocculant is a water-soluble acrylamide-based polymer having cationic quaternary ammonium groups .
- Does cationic hydrophobically associating polyacrylamide have good salt resistance?
- Although it is generally believed that cationic hydrophobically associating polyacrylamide has good salt resistance [ 37, 38, 39 ], in this paper, due to the extremely low polymer concentration, the viscosity of the solution is still greatly reduced.
- What is high molecular weight polyacrylamide (PAM)?
- Provided by the Springer Nature SharedIt content-sharing initiative High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.
