| abstract |
Hydroxyl or thiol terminated alkylene ether telomers varying from liquids to thermoplastic solids and composed of one or more telomer moieties from cyclic ether taxogen joined through a carbon atom to a telogen moiety are prepared by telomerization of cyclic ether monomer with a primary or secondary aromatic amine as a telogen in the presence of catalyst of the double metal cyanide complex class. As a specific example, a hydroxyl terminated telomer is prepared by telomerization of propylene oxide with aniline using zinc hexacyanoferrate-diglyme complex as the telomerization catalyst. |