TABLE 2. cont'd

Chromatography l,l,2-Trichloro-4,2,2-trifluoroethane SEC, porous silica. 1765. (Halocarbon 113) ..... immiscible liquids. Water/«-hexane. Countercurrent. 5,507,- ...
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TABLE 2. cont'd Polymer

Method of fractionation

Solvent or solvent/nonsolvent mixture

Remarks

Tetradydrofuran-methanol(l :2) water Tetrahydrofuran/petroleum ether Toluene/petroleum ether Formaldehyde - sodium napthalene sulfonate Fractional precipitation Water/acetone Poly(p-hydroxybenzoic acid-c0-/?-bromopnenol-c