Amberlite IRP

Heyd has studied the stability of neomycin in aqueous gels and formulated a satisfactory product by adsorbing the antibiotic on an ion exchange resin, Amberlite IRP-69M, prior to incorporation in the gel. 

Amberlite IRP-88 methacrylic acid polymer with divinylben-zene, potassium salt polacrilinum kalii. 

Figure 1 Particle size distribution of polacrilin potassium (Amberlite IRP-88).

Note that all of the above grades, with the exception of Amberlite IRP-88, are available in particle-size grades <325 mesh, divinylbenzene. 

Polacrilin resin (Amberlite IRP-64) is prepared by the copolymerization of methacrylic acid with divinylbenzene (DVB). Polacrilin potassium (Amberlite IRP-88) is then produced by neutralizing this resin with potassium hydroxide. 

Other resins are similarly produced by copolymerization between styrene and divinylbenzene (Amberlite IRP-69, Amberlite IRP-67, Amberlite IR-120, and Amberlite IRA-400). Phenolic-based polyamine condensates (Amberlite IRP-58) may also be produced. 

Synonyms Amberlite IRP-64 methacrylic acid polymer with divinylbenzene 2-methyl-2-propenoic acid polymer with divinylbenzene. 

Ambergris oil. See Ambergris Amberlig. See Calcium lignosulfonate Amberlit IRP-88. See Methacrylic acid-divinylbenzene copolymer Amber musk. See Musk ambrette Ambersil Antifoam 4010. See Polydimethylsiloxane... 

Trade Name Synonyms Amberlite IRP-88 [Rohm Haas http //www.rohmhaas.com] http //www.acusoi.com]... 

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