N‐bromo‐poly(styrene‐co‐divinylbenzene) sulphonamide metal salts. Synthesis and basic properties

Bogoczek, Romuald; Kociołek‐Balawejder, Elżbieta

doi:10.1002/apmc.1991.051880108

Cited by 18 publications

(14 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Amberlyst 15 is a macroporous poly(S/20 %DVB) resin having -SO 3 H groups (4.70 mmol g -1 in the dry state); surface area 45 m 2 g -1 ; average pore diameter 25 nm. Sulphonic groups of the resin were transformed into Nbromosulphonamide groups by a method published elsewhere [16]:…”

Section: Experimental Materialsmentioning

confidence: 99%

“…We have described previously a method to obtain this copolymer, through a chemical modification of a commercially available sulphonic cation exchanger having a macroporous structure [16]. The product has a physical form analogous to ion exchangers, and its functional groups attached to the crosslinked macroporous matrix demonstrate high reactivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A macromolecular N-bromosulphonamide as a heterogeneous oxidant in acidic media

Ciechanowska

Kociołek‐Balawejder

2015

Polym. Bull.

Self Cite

View full text Add to dashboard Cite

Styrene-divinylbenzene copolymer containing N-bromosulphonamide groups as sodium salt, [P]-SO 2 NBrNa, can be viewed as a high molecular weight redox polymer mimicking its low molecular weight analogue: Bromamine-T. The stability of this copolymer in acidic media has not been studied in detail to date. This paper reports on studies of the reaction between the copolymer and aqueous FeSO 4 solution conducted in a series of batch and column experiments. It was found that pH \3.0 results in transition of active bromine from -SO 2 NBr -groups to the solution, followed by oxidation of Fe 2? ions to Fe 3? ions by elemental bromine. In reaction media of pH [3.0, active bromine remains bound to the functional groups, facilitating application of this copolymer as an effective oxidant in column processes running in weakly acidic reaction media. Results of the present work provide evidence that -SO 2 NBr -functional groups of the copolymer can stably exist in acidic form which is in contrast to the behaviour of the low molecular weight analogue (N-bromo-p-toluenesulphonic acid does not occur as a pure chemical compound).

show abstract

Section: Experimental Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A macromolecular N-bromosulphonamide as a heterogeneous oxidant in acidic media

Ciechanowska

Kociołek‐Balawejder

2015

Polym. Bull.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Polymer-bound N-chloro-N-sodiobenzenesulfonamidate, prepared via functionalization of poly(styrene-co-divinylbenzene), and its derivatives are useful in water disinfection and in removal of cyanide from water (144)(145)(146)(147)(148)(149)(150)(151). They have also been used in kinetic and mechanistic studies of the oxidation of pentoses (152) and phenylethyl alcohols (153).…”

Section: Aromatic Compounds Sulfonamidates and Sulfonamidesmentioning

confidence: 99%

“…The third method appears to be the most facile approach and has experienced the widest development over the past decade. Already mentioned are the polymer-bound N-chloro-N-sodiobenzenesulfonamidates, prepared via functionalization of poly(styrene-co-divinylbenzene), and its derivatives that are useful in water disinfection and in removal of cyanide from water (144)(145)(146)(147)(148)(149)(150)(151). Recently, poly(styrene-co-divinylbenzene) has been functionalized with a hydantoin moiety that can be mono-or dichlorinated before use in an in situ water disinfection application (206,207).…”

Section: N -Halamine Polymersmentioning

confidence: 99%

N‐Halamines

Worley¹,

Wojtowicz²

2004

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

N ‐Halamines are inorganic and organic compounds in which oxidative halogen is chemically bonded to nitrogen. They have both research and commercial importance, particularly in the areas of disinfection of water and stabilization of free halogen. The N ‐halogen bond is formed by reaction of an amine, imine, amide, or imide with halogen, hypohalous acid, or hypochlorite. Only the chloro and bromo derivatives are of commercial importance. The physical and chemical properties, preparation, manufacture, uses, safety and handling, toxicity, and economic aspects of chloramines and bromamines are discussed. The chemistry of chloramines and bromamines is diversified not only because nitrogen and halogen act as reaction sites, but because of the different modes by which these functionalities react. Research activity on synthetic applications of chloramines and bromamines continues to be high. In aqueous solution, the chloramines and bromamines generally undergo hydrolysis to varying degrees forming hypochlorous and hypobromous acids. Thus generally these N ‐halamines can be considered as halogen release agents, and many, eg, chloroisocyanurates, find use in bleaching, disinfecting, and sanitizing applications. Others, such as halogen derivatives of ammonia, are important because they are industrial process intermediates (monochloramine) or of significance in water treatment (mono‐, di‐, and trichloramine). The most recent work has concerned covalent attachment of N ‐halamine moieties to insoluble polymers so as to create biocidal materials with excellent potential for commercial utilization.

show abstract

“…[9,10] The following procedure was used: A commercial sulfonate cation exchanger Amberlyst 15 (produced by Rohm and Haas Co.) was used as the starting material. This was a macroporous poly(S/20%DVB) resin containing 4.70 mmol SO 3 H/g in the dry state (surface area 45 m 2 /g, average pore diameter 25 nm).…”

Section: Experimental Partmentioning

confidence: 99%