Results 121 to 130 of about 575 (138)

Adsorption of mercury(II) on macroreticular styrene—divinylbenzene copolymer beads

Talanta, 1979
The adsorption characteristics of mercury(II) on several kinds of styrene-divinylbenzene copolymer beads having different surface properties were studied. It was found that the polymer beads selectively adsorbed mercury(II) from solutions over a wide range of pH with high efficiency.
A, Sugii, N, Ogawa, H, Imamura
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Chemical modification of styrene-divinylbenzene copolymers by dialkyl phosphites

Polymer, 1986
Abstract Chloromethylated styrene-divinylbenzene copolymers were treated with dialkyl phosphites to obtain cation exchangers with phosphorus-containing acid groups. The gel and macroporous styrene-divinylbenzene (St-DVB) copolymers of Wofatit type were used. The influence of the phosphite (R=CH 3 , C 2 H 5 ) as well as of the copolymer structure (gel,
Romuald Bogoczek, Joanna Surowiec
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AN OVERVIEW OF HYDROPHOBIC CATALYST OVER STYRENE-DIVINYLBENZENE COPOLYMER

Chemical Engineering Communications, 2012
Recently developed catalytic processes with hydrophobic catalysts supported over styrene-divinylbenzene copolymer (SDB) were reviewed. Applications of such catalytic processes in commercial chemicals production and environmental management were examined in great detail.
Baohe Wang, Weili Ran
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Styrene — divinylbenzene copolymers, IV. Porosity changes during chloromethylation

Die Angewandte Makromolekulare Chemie, 1986
AbstractThe change in the porosity of styrene‐divinylbenzene (S‐DVB) copolymers during the chloromethylation reaction was investigated using apparent densities and equilibrium swelling in toluene. Maximum porosity of S‐DVB copolymers does not change appreciably with the chloromethylation reaction.
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Cure characterization of soybean oil—Styrene—Divinylbenzene thermosetting copolymers

Journal of Applied Polymer Science, 2009
AbstractBio‐based resins are an alternative to petroleum‐based resins in the production of fiber‐reinforced polymers (FRPs) by processes such as pultrusion. A detailed understanding of the cure behavior of the resin is essential to determine the process variables for production of FRPs.
Prashanth Badrinarayanan, Yongshang Lu, Richard C. Larock, Michael R. Kessler   +3 more
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Macroreticular resins. III. Formation of macroreticular styrene–divinylbenzene copolymers

Journal of Polymer Science Part A-1: Polymer Chemistry, 1968
AbstractExperimental evidence is presented that describes the mechanism of formation of macroreticular styrene–divinylbenzene copolymers in which phase separation occurs during a suspension polymerization. The mode of formation of the macroreticular structure is described as a three‐stage process in which each droplet of the organic phase behaves as an
Kenneth A. Kun, Robert Kunin
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Neutral Styrene Divinylbenzene Copolymers for Adsorption of Toxins in Liver Failure

Biomacromolecules, 2008
In artificial extracorporeal liver support systems, albumin-bound toxins such as bilirubin, bile acids, or aromatic amino acids are removed by adsorption to polymer beads. To overcome the potential weaknesses of anion exchange polymers currently used in liver support, namely, binding of heparin and activation of coagulation, we prepared two series of ...
Viktoria, Weber, Ingrid, Linsberger, Maria, Hauner, André, Leistner, Aniela, Leistner, Dieter, Falkenhagen   +5 more
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Synthesis of manganese ferrite nanoparticles in macroporous styrene-divinylbenzene copolymer

Journal of Magnetism and Magnetic Materials, 2004
Abstract Preparation of manganese ferrite (MnFe 2 O 4 ) in a polymer template is described in this work. The ferrite-based samples were prepared in situ by two routes: (I) alkaline oxidation of Fe 3+ and Mn 2+ ions and (II) alkaline oxidation of Fe 2+ and Mn 2+ ions. The nanocomposites were characterized using chemical analysis, X-ray diffraction,
D. Rabelo, E.C.D. Lima, N. Tavares Filho, F.Q. Soares, L.C. Faria, F. Pelegrini, O. Silva, A.C. Oliveira, V.K. Garg, P.C. Morais   +9 more
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Catalytic properties of cobalt(II) porphyrins supported on styrene-divinylbenzene copolymer

Journal of Applied Polymer Science, 1996
Polymeric pyridinium chloride was synthesized by treating pyridine with 2% divinylbenzene (DVB)-crosslinked chloromethyl polystyrene. Sodium 5,10,15,20-tetrakis(4-sulfophenyl)porphyrin was synthesized and appended on the above polymer through an ionic linkage.
Tessymol Mathew, M. Padmanabhan, Sunny Kuriakose   +2 more
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Styrene‐divinylbenzene copolymers for high‐performance proppant applications

Polymer Engineering & Science
AbstractThis study focuses on developing and characterizing polymer‐based materials for high‐performance applications as proppants in oil and gas wells. We use styrene‐divinylbenzene (Sty‐DVB) copolymers as the base, incorporating additives such as polybutadiene (PB) and polyphenylene oxide (PPO).
C. J. Perez, Federico Rueda, Valeria Pettarin, J. Pablo Tomba, José M. Carella   +4 more
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