A new bifunctional coupling agent: Synthesis and model reactions

The preparation of a new bifunctional coupling agent with one oxazoline gro up and one oxazinone group has been described. Model reactions with dodecan oic acid, benzoic acid, n-dodecyl alcohol and n-dodecylamine in melt eviden ced that both carboxylic acids react selectively with the oxazoline group w hereas the oxazinone group is exclusively attacked by the amino and the hyd roxy compound, respectively. In blends of amino group terminated polyethers with a carboxy group containing polyethylene the new coupling agent has pr oven very effective.