title: Poly(methyl methacrylate)s with pendant calixpyrroles and crown ethers: polymeric extractants for potassium halides.
mesh_terms: D043844:Crown Ethers / Q000737:chemistry*; D005459:Fluorides / Q000302:isolation & purification*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D011189:Potassium Chloride / Q000302:isolation & purification*; D017680:Potassium Compounds / Q000302:isolation & purification*; D011758:Pyrroles / Q000737:chemistry*; D012996:Solutions; D014867:Water / Q000737:chemistry*
chemical_list: D043844:Crown Ethers; D017680:Potassium Compounds; D011758:Pyrroles; D012996:Solutions; D014867:Water; D011189:Potassium Chloride; D019904:Polymethyl Methacrylate; C033320:potassium fluoride; D005459:Fluorides