I want to know, if I prepared polymer-supported photocatalyst, Amberlite resin or Dowex resin would be better (This would be according to the chemical structure, pore size, surface area or the used substrate)?
The reagent is used as a base, a source of nucleophilic hydroxide, or a scavenger in a wide array of reactions 1. Alternate Name: quaternary ammonium hydroxide anion ex-change resin, Amberlite IRA-400 (OH − form), Amberlite IRA 420 (OH − form), Amberlite IRA 410 (OH − form), Amber-lite IRN-150, Amberlite IRA 900 (OH − form), Amberlite IRA 904 (OH − form), Amberlite IRA 910 (OH − form), Amberlite A5836, Amberlyst A26 (OH − form), Ambersep 900, Dowex-1 (OH − form), Dowex-3 (OH − form), Dowex 1-X4 (OH − form), Dowex 1-I 9880, Dowex 1-I0131, Dowex 550 A (OH − form), Amberjet 4400. Form Supplied in: available on a variety of polystyrene-divinylbenzene cross-linked supports of both macroreticular and gel-type ion exchange resins. The reagent can be obtained with a range of basicities (pH) broadly characterized as weakly basic to strongly basic resins. The standard commercial form comes as large spherical beads (up to 4 mm in diameter) usually supplied with a water content of 30–60% by mass. Purity: elute and wash with suitable solvents prior to use and dry under vacuum if required. Handling, Storage, and Precautions: irritant; wear suitable protective clothing. Deactivates upon prolonged exposure to air by absorption of carbon dioxide. Decomposition of the tetra alkyl moiety can occur with strong acids/bases, oxidants and high temperatures. General. Polymer-supported hydroxide has properties fully comparable to its solution phase counterparts. Some practical ad-vantages of the polymer-supported hydroxide over the solution-phase bases is that no neutralization or separation steps are required other than simple filtration and evaporation of solvent leading to essentially pure products. The spent resin can also be easily regenerated and recycled by a simple base activation and washing sequence. The resin also shows a good tolerance of most polar and nonpolar organic solvents although some protic and highly acid solvents can ion exchange with the hydroxide resin (e.g. alcohols, which can form the alkoxides on support). Hydrolysis. Polymer-supported hydroxide serves as a nucle-ophile in various hydrolysis reactions. Hydrolysis of esters to the constituent acids and alcohols can be carried out under aqueous or methanolic conditions at ambient temperature. 4,5 Amides can also be formed from the corresponding nitriles 6 and cyclic iodo carbonates are smoothly converted into epoxy alcohols with re-tention of stereochemistry.
Karakka Kal Abdul Khader Thank you very much for your response, could you support me with any references about this topic?
Amal Hassan Tolba
Please find DOI: 10.1002/047084289X.rn0005
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