Chlorosulfonated styrene-divinyl benzene (10%) resin beads (420 -590 m), when treated with an excess of triethylene tetramine (TETA), give a corresponding polymeric sulfonamide with three amine functions. The free amine functions of the resin were carboxymethylated almost quantitatively by reacting
Sorbitol-modified poly(N-glycidyl styrene sulfonamide) for removal of boron
✍ Scribed by Niyazi Biçak; Bahire Filiz Şenkal
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 175 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
A sorbitol-containing resinous polymer has been prepared starting from crosslinked polystyrene-10% divinylbenzene (DVB) resin beads (720-840 mm) by the following series of reactions: (1) chlorosulfonation, (2) sulfonamidation with N-propylamine, (3) condensation of sulfonamide with epichlorohydrin, and (4) modification with sorbitol. The resulting sorbitol-modified polymer has been demonstrated to be an efficient and regenerable specific sorbent for removal of boron in parts per million (ppm) levels. Kinetics of boron sorption and regeneration of the polymer were investigated.
📜 SIMILAR VOLUMES
## Abstract An efficient and operationally simple method is developed for chemical decontamination of simulant of VX. A new chlorine bearing reagent __N____,N____‐__dichloro poly(styrene‐__co__‐divinyl benzene) sulfonamide was developed to deactivate the simulant of VX in aqueous medium. This decon
An efficient and operationally simple method is developed for the synthesis of dialkyl chlorophosphates from dialkylphosphites using a new chlorine bearing reagent, N,N-dichloro poly(styrene-co-divinyl benzene) sulfonamide in the form of polymeric beads. The reagent afforded dialkyl chlorophosphates