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Polymeric haloethyl acrylates, methacrylates, and methacrylamides, poly(vinyl chloride), poly‐(epichlorohydrin), and halohydrins prepared from poly(glycidyl methacrylate), poly(butadiene), and poly(pentenamer) were converted to the corresponding azides. These azides reacted with a variety of acetylenic and olefinic derivatives to give, in most cases, good conversions to the corresponding triazole derivatives.

The interactions of methyl orange with methyl, hexyl, and benzyl quaternized poly(JVvinylimidazoles) were studied to assess the structural factors and the nature of the driving forces for dye binding. The stoichiometry of the polymer-dye complex is dictated by charge. The apparent binding constant increases with polymer charge density as well as polymer saturation r (where r = [Db]/[Pt], and [Db] and [Pt] are the molar concentrations of bound dye and total polymer quaternary sites, respectively), but decreases in the presence of competing counterions, indicating that Coulombic forces operate. The van der Waals forces between the dye and the aromatic or long-chain hydrocarbon group at the polymer quaternary site also enhance binding strength. Cooperative dye binding was observed in the region 0 < r < 0.7. This behavior is discussed in terms of the dimerization tendency of the dye molecules. In the high-saturation region (0.7 < r < 1.0), however, steric hindrance prevents further aggregation of the dye, and cooperativity was lost.

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The direct conversion of poly(epichlorohydrin), poly[3,3‐bis(chloromethyl)oxetane], and poly‐(vinyl chloroethyl ether) to the corresponding hydroxyl‐containing polymers is described. The replacement of the halogen atom in several chlorine‐containing polymeric esters by an acetyl group and the subsequent conversion of the latter derivatives to hydroxyl‐containing polymers is also described.