Vlasta Hynková

The polymerizations of N-methyl-N-phenyl-2-aminoethyl methacrylate and 4-dimethylaminostyrene initiated with carboxylic acids

Abstract By using the copolymerizations of N -methyl-N-phenyl-2-aminoethyl methacrylate (I) and 4-dimethylaminostyrene (II) with styrene initiated with 2,2′-azoisobutyronitrile (AIBN) and with CCl 3 COOH, the copolymerization parameters and Alfrey-Price copolymerization constants e and Q were determined for I and II. The only product of polymerizations initiated with CCl 3 COOH and CH 3 COOH in mixtures of II with vinyl monomers was a homopolymer of II. The order of homopolymerization of II in benzene initiated with CCl 3 COOH at 50° was 0.99 with respect to [II] and 1.10 with respect to [CCl 3 COOH]; the temperature dependence of homopolymerization in the range 25–40° was 63 ± 5 kJ mol −1 . The rate of homopolymerization of II in solution in C 6 H 6 at 50° was virtually unaffected by inhibitors. In the polymerization initiated with carboxylic acids, the radical character of propagation centres was proved for I, but not for II.

Binding of polymer molecules with tertiary amine groups by halogen-containing compounds

Abstract Soluble polymers and copolymers with bound tertiary amine groups react at room temperature with halogens and halogen compounds to give crosslinked systems. Crosslinking occurs in solution, emulsion and in polymer mixtures, in ultra-violet and visible light and in the dark.