Results 161 to 170 of about 133,028 (189)
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The formation and structure of suspension‐polymerized styrene–divinylbenzene copolymers
Journal of Applied Polymer Science, 1981AbstractPorous polymers were prepared by suspension copolymerization of styrene/divinylbenzene in various ratios together with various quantities of diluents, both solvating and nonsolvating. Parallel bulk polymerizations were made to detect the onset of gelation and phase separation.
G. J. Howard, C. A. Midgley
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Chemical modification of styrene-divinylbenzene copolymers by dialkyl phosphites
Polymer, 1986Abstract 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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Styrene‐divinylbenzene copolymers for high‐performance proppant applications
Polymer Engineering & ScienceAbstract This 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 +4 more
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Catalytic properties of cobalt(II) porphyrins supported on styrene-divinylbenzene copolymer
Journal of Applied Polymer Science, 1996Polymeric 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 +2 more
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Die Angewandte Makromolekulare Chemie, 1979
AbstractMacroporous styrene‐divinylbenzene resins are studied using precipitating agents as diluents. A definition of the macroporous domain is given, based on homogeneous properties and structures. The existence of this macroporous domain is proved to be a general feature of the macroporous resins field.
H. Jacobelli, M. Bartholin, A. Guyot
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AbstractMacroporous styrene‐divinylbenzene resins are studied using precipitating agents as diluents. A definition of the macroporous domain is given, based on homogeneous properties and structures. The existence of this macroporous domain is proved to be a general feature of the macroporous resins field.
H. Jacobelli, M. Bartholin, A. Guyot
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Temperature effect on tension formation in styrene–divinylbenzene copolymers
Polymer InternationalAbstractCrosslinked polymers are considered to be promising materials for supporting catalysts that are effectively applied in different reactions. However, the application of polymer‐supported catalysts in high‐temperature processes is limited by their temperature stability.
Alexey V Bykov +3 more
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Synthesis of sulfoalkylated styrene‐divinylbenzene copolymers
Die Makromolekulare Chemie, Rapid Communications, 1980Frank Döscher +3 more
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Electron microscopy study of styrene-divinylbenzene copolymers
European Polymer Journal, 1994I.M. Huxham, L. Tetley, D.C. Sherrington
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Thermoelasticity of swollen styrene-divinylbenzene copolymers
Collection of Czechoslovak Chemical Communications, 1967openaire +1 more source