Synthesis of Hydrogel Nanocomposites Based on Partially
Partially hydrolyzed polyacrylamide (HPAM) with an average molecular weight of 8 × 10 6 g/mol (hydrolysis degree of 30%) was provided by SNF FLOERGER, with trade name FP3330S. Branched polyethyleneimine (PEI) with an average molecular weight of 25.000 g/mol was purchased from Sigma-Aldrich to work as an organic cross-linker.
Partially hydrolyzed polyacrylamide (PHPA) is the most frequently used polymer in this respect, owing to its low cost, viscosifying nature, and well-known physiochemical properties (Urbissinova et al. 2010). The molecule of this polymer is a flexible chain which remains in coil-like structure in the absence of a shearing effect.
Synthesis of partially hydrolyzed polyacrylamide
Synthesis of partially hydrolyzed polyacrylamide and investigation of solution properties (Viscosity Behaviour) Article (PDF Available) in Iranian Polymer Journal 13(6):479-484 · November 2004
Synthesis and evaluation of partially hydrolysed polyacrylamide (PHPA) as viscosifier in water based drilling fluids The hydrolyzed product (PHPA) was then recovered by precipitating in methanol and dried in vacuum oven for 5 h at 60°C. Molecular weight of polyacrylamide was
Preparation and Testing of Partially Hydrolyzed
Polyacrylamide Behavior in Field Core Specimens In Section I, procedures will be given to dissolve polymers properly in stable analogs of the natural field brines. Section II continues with methods to assess the properties (screen factor viscosity and thermal stability) of polyacrylamide dissolved in brine.
In this work, we comprehensively investigate the physical properties and performance of a molecular-weight series (3–20 × 10 6 g/mol) of partially hydrolyzed polyacrylamide (HPAM) in silicon anodes. We quantify the mechanical strength, electrolyte uptake, adhesion to silicon, copper, and carbon, as well as electrochemical performance and
Enhanced photocatalytic degradation of hydrolyzed
References. A.M. Mansour, R.S. Al-Maamari, A.S. Al-Hashmi, A. Zaitoun, H. Al-Sharji, In-situ rheology and mechanical degradation of EOR polyacrylamide solutions under
Introduction. Polyacrylamide polymers are widely used in oil and gas exploitation activities 1 and most acrylamide-based polymers used in these activities are partially hydrolyzed, resulting in the presence of carboxylic groups in the chain. 2 These charged unit improves water solubility and increases the hydrodynamic volume of the chain due to mutual repulsion of the negative charges.
J. Braz. Chem. Soc. Article - SciELO
490 Solution Properties of a Hydrophobically Associating Polyacrylamide J. Braz. Chem. Soc. (HAPAM) and their partially hydrolyzed analogues are prospective candidates as thickeners or rheology modifiers for use in drilling fluid formulations,3 reservoir stimulation4 and tertiary oil recovery.5 Due to the
Acrylamide is a colorless, odorless, crystalline amide that polymerizes rapidly and can form as a byproduct during the heating of starch-rich foods to high temperatures.Acrylamide is used in the production of polymers mainly in the water treatment industry, pulp and paper industry and textile treatment industry and is used as a laboratory reagent. . The polymer is nontoxic, but exposure to the
Synthesis of Guerbet Amine-Oxide for Enhanced Oil Recovery
Guerbet amine-oxide was synthesized by using Guerbet acid, N , N ′-diethyl-1,3-propanediamine and hydrogen peroxide. Its structure was confirmed by FT-IR spectra and mass spectra. The critical micelle concentration (CMC) and the interfacial tension between the crude oil and water were measured. The results showed that the CMC of the Guerbet amine-oxide is 2.14 × 10<sup>&#
Partially Hydrolyzed Polyacrylamide (PHPA) Mud Systems for. For exploration and development drilling of deepwater prospects in the Gulf of Mexico, operators have primarily utilized a high salt (20 percent w/w), partially hydrolyzed polyacrylamide (PHPA) mud system.
