• a cationic polyacrylamide dispersion synthesis by

    A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY

    A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY DISPERSION POLYMERIZATION IN AQUEOUS SOLUTION Yufeng Wang,a,b,* Kefu Chen,a Lihuan Mo,a,* and Huiren Hu c A cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion polymerization in aqueous

  • stability of aqueous silica nanoparticle dispersions

    Stability of Aqueous Silica Nanoparticle Dispersions

    Stability of Aqueous Silica Nanoparticle Dispersions under Subsurface Conditions . Cigdem O. Metin *, Larry W. Lake *, Caetano R. Miranda ** and Quoc P. Nguyen

  • preparation of poly(acrylamide- co-acrylic acid) aqueous

    Preparation of poly(acrylamide- co-acrylic acid) aqueous

    High-solids, low-viscosity, stable polyacrylamide (PAM) aqueous dispersions were prepared by dispersion polymerization of acrylamide in aqueous solution of

  • dispersion polymerization of anionic polyacrylamide in an

    Dispersion polymerization of anionic polyacrylamide in an

    2010-08-03· Anionic polyacrylamide dispersions were prepared by dispersion polymerization in an aqueous salt medium, using acrylamide(AM) and acrylic acid(AA) as monomers and anionic polyelectrolytes as stabilizer. Effects of salt concentration, and molecular weight and concentration of stabilizers on the stability of the dispersions were investigated using a HAAKE rheometer and optical

  • synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric polyacrylamide by dispersion polymerization in aqueous salts solution Y. Zou, Y.H. Zhang and P.X. He* Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P.R. China

  • anionic polyacrylamide water-in-water emulsion prepared

    Anionic polyacrylamide water-in-water emulsion prepared

    Anionic polyacrylamide “water-in-water” emulsion prepared by dispersion polymerization in mixed salt aqueous media Yongli Lü,1 2 Yujun Feng,1* Yongfeng Zhao,3 4 Sheng Zhang,4 Songkuang Shu,4

  • synthesis of block cationic polyacrylamide precursors

    Synthesis of block cationic polyacrylamide precursors

    Synthesis of block cationic polyacrylamide precursors using an aqueous RAFT dispersion polymerization† Bo Huang,a Jie Jiang,a Mutian Kang,a Pingwei Liu,*ab Hailong Sun,*c Bo-Geng Lia and Wen-Jun Wang *ab Synthesis of cationic polyacrylamides (CPAMs) by introducing cationic polymer precursors followed by

  • preparation of polyacrylamide aqueous dispersions using

    Preparation of polyacrylamide aqueous dispersions using

    High‐solids, low‐viscosity, stable polyacrylamide (PAM) aqueous dispersions were prepared by dispersion polymerization of acrylamide in aqueous solution of ammonium sulfate (AS) using poly (sodium acrylic acid) (PAANa) as the stabilizer, ammonium persulfate (APS) or 2,2′‐Azobis (N,N′‐dimethyleneisobutyramidine) dihydrochloride (VA‐044) as the initiator.

  • journal of materials chemistry a researchgate

    Journal of Materials Chemistry A ResearchGate

    Polyacrylamide (PAM) and its derivatives are typical water soluble polymers with versatile industrial applications. Rheo- logical behaviours of their aqueous dispersions o en play an important

  • dispersion polymerization of anionic polyacrylamide in an

    Dispersion polymerization of anionic polyacrylamide in an

    Anionic polyacrylamide dispersions were prepared by dispersion polymerization in an aqueous salt medium, using acrylamide(AM) and acrylic acid(AA) as monomers and anionic polyelectrolytes as

  • aqueous dispersions of silane-functionalized laponite

    Aqueous Dispersions of Silane-Functionalized Laponite

    Mono- and trifunctional organo alcoxysilane derivatives carrying a terminal reactive methacryloyl group have been used as reagents for the chemical modification of synthetic Laponite clay platelets in toluene. Qualitative evidence of the presence of chemically attached silane molecules was provided by Fourier transform infrared and 29Si and 13C solid-state NMR spectroscopies. Quantitative data

  • dispersion polymerization of anionic polyacrylamide

    Dispersion polymerization of anionic polyacrylamide

    Anionic polyacrylamide dispersions were prepared by dispersion polymerization in an aqueous salt medium, using acrylamide(AM) and acrylic acid(AA) as monomers and anionic polyelectrolytes as stabilizer. Effects of salt concentration, and molecular weight and concentration of stabilizers on the stability of the dispersions were investigated using a HAAKE rheometer and optical microscopy. The

  • rheology and structure of aqueous bentonite–polyvinyl

    Rheology and structure of aqueous bentonite–polyvinyl

    Rheology and structure of aqueous bentonite–polyvinyl alcohol dispersions S øùdø†, C H ÜNLÜ, O ATICI* and N GÜNGÖR† Department of Chemistry, † Department of Physics, Istan bul Technical University, 34469 Maslak, Istanbul, Turkey MS received 15 February 2006; revised 10 July 2006 Abstract. The influence of polymer on flow

  • aqueous dispersion polymerization of amphoteric

    Aqueous dispersion polymerization of amphoteric

    Aqueous dispersion polymerization of amphoteric polyacrylamide. Yumin Wu. Corresponding Author. E-mail address: [email protected] College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China===

  • dispersion polymerization

    Dispersion polymerization

    One dispersion polymerization system being studied is the use of supercritical liquid carbon dioxide (scCO2) as a solvent. Because of its unique solvent properties, supercritical CO2 is an ideal medium for dispersion polymerization for many soluble-monomer with insoluble-polymer systems. For example, polymers can be separated by releasing the

  • steric stability of tio2 nanoparticles in aqueous

    Steric stability of TiO2 nanoparticles in aqueous

    COLLOIDS AND A Colloids and Surfaces SURFACES ELSEVIER A: Physicochemical and Engineering Aspects 106 (1996) 59 62 i Steric stability of TiO2 nanoparticles in aqueous dispersions J.L. Deiss a'*, P. Anizan b, S. E1 Hadigui a, C. Wecker a a Institut de Physique et Chimie des Mat~riaux de Strasbourg, Unitd Mixte 380046, CNRS-ULP-EHICS, Groupe d'Optique Nonlindaire et d'Optoklectronique et

  • effect of surfactant and polymer adsorption on the

    Effect of Surfactant and Polymer Adsorption on the

    Effect of Surfactant and Polymer Adsorption on the Viscosity of Aqueous Colloidal Silica Dispersions under Extreme Conditionst A.A. Zaman\ P. K. Singh2 and B.M. Moudgil2 1 Department of Chemical Engineering 2 Department of Materials Science and Engineering

  • aqueous dispersions of layered double hydroxide

    Aqueous dispersions of layered double hydroxide

    Water was used to replace the toxic organic solvent of formamide in preparation of the aqueous dispersions of layered double hydroxide/polyacrylamide (LDH/PAM) nanocomposites, which exhibited greatly enhanced rheological properties when compared to those of the neat PAM. First, the nanocomposite dispersions

  • a study of polypyrrole/poly(n-isopropylacrylamide-co

    A study of polypyrrole/poly(N-isopropylacrylamide-co

    Aqueous dispersions have been studied where the particles consist of an electrically conducting polymer (polypyrrole, PPy) and anchored temperature-responsive sheaths. The sheaths consist of poly( N -isopropylacrylamide- co -acrylamide) [poly(NP- x AM) ( x =35, 50 and 65)] copolymer [where x represents the mol% of acrylamide (AM) used during synthesis].

  • klaus tauer definitions meaning & properties of polymer

    Klaus Tauer Definitions Meaning & properties of polymer

    Klaus Tauer Definitions Meaning & properties of polymer dispersions Preparation of polymer dispersions. Polymer Dispersions Polymer: any of a class of natural or synthetic substances composed of very large molecules, called macromolecules, that are multiples of simpler chemical units called monomers. Polymers make up also many of the materials in living organisms, including, for example

  • us2914498a aqueous dispersion of vinyl chloride

    US2914498A Aqueous dispersion of vinyl chloride

    US2914498A US395277A US39527753A US2914498A US 2914498 A US2914498 A US 2914498A US 395277 A US395277 A US 395277A US 39527753 A US39527753 A US 39527753A US 2914498 A US2914498 A US 2914498A Authority US United States Prior art keywords vinyl chloride vinyl weight parts aqueous dispersion Prior art date 1953-11-30 Legal status (The legal status is an assumption

  • anomalous solubility of polyacrylamide prepared

    Anomalous solubility of polyacrylamide prepared

    Polyacrylamide prepared by dispersion (precipitation) polymerization in an aqueous t‐butyl alcohol (TBA) medium is only partially soluble when the TBA concentrations in the polymerization media are in the range 82 vol % < TBA < 95 vol %.Independent experiments with a soluble (linear) sample of polyacrylamide show that the polymer swells sufficiently in the aforementioned media to lower the

  • synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric

    Synthesis and characterization of amphoteric polyacrylamide by dispersion polymerization in aqueous salts solution Y. Zou, Y.H. Zhang and P.X. He* Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P.R. China

  • david s. corti davidson school of chemical engineering

    David S. Corti Davidson School of Chemical Engineering

    Stability of Model Colloidal Dispersions . In collaboration with Prof. Elias I. Franses, we are studying the “Aqueous Dispersion Stability of Inks and Ink-Like Model Colloidal Dispersions.” The main goal of these detailed experimental and theoretical studies is to improve understanding of the inter-particle forces which cause the

  • preparation of polyacrylamide aqueous dispersions using

    Preparation of polyacrylamide aqueous dispersions using

    High‐solids, low‐viscosity, stable polyacrylamide (PAM) aqueous dispersions were prepared by dispersion polymerization of acrylamide in aqueous solution of

  • functionalization of polyurethane dispersions

    Functionalization of Polyurethane Dispersions

    in fact not a regression at all: ecofriendly systems consisting of aqueous polymer dispersions or adhesives containing naturally occurring molecules such as peptides are attracting a great amount of attention from research scientists as well as from the industry.

  • a cationic polyacrylamide dispersion synthesis

    A cationic polyacrylamide dispersion synthesis

    Full Article. A CATIONIC POLYACRYLAMIDE DISPERSION SYNTHESIS BY DISPERSION POLYMERIZATION IN AQUEOUS SOLUTION. Yufeng Wang, a,b, * Kefu Chen, a Lihuan Mo, a,* and Huiren Hu c A cationic polyacrylamide (CPAM) dispersion, the copolymer of acrylamide (AM) and acryloyloxyethyltrimethyl ammonium chloride (DAC), has been synthesized through dispersion polymerization in aqueous

  • aqueous dispersions of layered double hydroxide

    Aqueous dispersions of layered double hydroxide

    Water was used to replace the toxic organic solvent of formamide in preparation of the aqueous dispersions of layered double hydroxide/polyacrylamide (LDH/PAM) nanocomposites, which exhibited greatly enhanced rheological properties when compared to those of the neat PAM. First, the nanocomposite dispersions were prepared via a convenient in

  • mustafa saleh nasser google scholar citations

    Mustafa Saleh Nasser Google Scholar Citations

    Effect of electrolytes on electrokinetics and flocculation behavior of bentonite-polyacrylamide dispersions SMR Shaikh, MS Nasser, M Magzoub, A Benamor, IA Hussein, Applied Clay Science 158, 46-54,2018

  • stabilizing and dispersing methods of tio2 nanoparticles

    Stabilizing and dispersing methods of TiO2 nanoparticles

    Thus dispersion and stability of TiO 2 NPs should be considered in biological application. This paper deals on various dispersing methods such as ultrasonication, electrostatic, steric electrosteric stabilization that suppress agglomeration and stabilizes the dispersed NPs in aqueous medium. Sonication breaks up agglomerated NPs in a solvent

  • characteristics and microstructure of aqueous colloidal

    Characteristics and microstructure of aqueous colloidal

    Characteristics and microstructure of aqueous colloidal dispersions of graphite oxide Author links open overlay panel G.I. Titelman a V. Gelman a S. Bron a

  • synthesis of block cationic polyacrylamide precursors

    Synthesis of block cationic polyacrylamide precursors

    Synthesis of block cationic polyacrylamide precursors using an aqueous RAFT dispersion polymerization† Bo Huang,a Jie Jiang,a Mutian Kang,a Pingwei Liu,*ab Hailong Sun,*c Bo-Geng Lia and Wen-Jun Wang *ab Synthesis of cationic polyacrylamides (CPAMs) by introducing cationic polymer precursors followed by

  • formation of colloidal dispersion gels from aqueous

    Formation of colloidal dispersion gels from aqueous

    2008-03-20· The formation of colloidal dispersion gels (CDGs) in aqueous solution by cross-linking partially hydrolyzed polyacrylamide (HPAM) with aluminum citrate has been studied as a function of time, temperature, and pH by using rheology and electrophoretic measurements.

  • electrophoresis

    Electrophoresis

    Electrophoresis (from the Greek "Ηλεκτροφόρηση" meaning "to bear electrons") is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Electrophoresis of positively charged particles is sometimes called cataphoresis, while electrophoresis of negatively charged particles (anions) is sometimes called anaphoresis.

  • anionic polyacrylamide dispersion scientific.net

    Anionic Polyacrylamide Dispersion Scientific.Net

    Abstract: Anionic polyacrylamide dispersions were prepared by dispersion polymerization in aqueous salt solutions. The effects of reaction conditions, such as salt concentration, molecular weight of stabilizers, on the micromorphology of the dispersions were investigated systematically by using biological photomicroscope.

  • research on the influence of the type of surfactant

    Research on the Influence of the Type of Surfactant

    2013-08-18· For comparative purposes, Concentrator T was used, being an aqueous dispersion of acrylic copolymer stabilized by a mixture of anionic and nonionic surfactants with pH 7.5, product of the Institute of Polymer Materials Engineering and Paints in Toruń, Department of

  • journal of dispersion science and technology

    Journal of Dispersion Science and Technology

    (2012). Physicochemical and Rheological Properties of Novel Magnesium Salt-Polyacrylamide Composite Polymers. Journal of Dispersion Science and Technology: Vol. 33, No. 9, pp. 1284-1291.

  • soheil sadeghi google scholar citations

    Soheil Sadeghi Google Scholar Citations

    Mohammad Arjmand Assistant Professor and Canada Research Chair in Advanced Materials and Polymer Engineering Verified email at ubc.ca. Alireza Zehtab Yazdi Imperial Oil / ExxonMobil Verified email at esso.ca. Petra Pötschke Leibniz Institute of Polymer Research Dresden Verified email at ipfdd.de. Tieqi Li Formosa Plastics Corporation Verified email at ftpc.fpcusa. Follow. Soheil

  • winnik research group university of toronto

    Winnik Research Group University of Toronto

    >> M. A. WINNIK. Mitch Winnik received a B.A. degree from Yale University in 1965. He obtained his Ph.D. degree in the area of organic chemistry at Columbia University in 1969, working under the direction of Prof. Ronald Breslow, and then spent a year as a postdoctoral fellow in the laboratory of Prof. George Hammond at Caltech studying organic photochemistry.

  • prof dan li

    Prof Dan Li

    Professor Dan Li is an Australian Laureate Fellow in materials science and engineering at the University of Melbourne, Australia. He received his PhD degree in Materials Physics and Chemistry from the University of Electronic Science and Technology of China in 1999. After several years as a Research Fellow at Nanjing University of Science and Technology, University of Washington, University of

Related Post