Production of thin films

Abstract From the Canadian patent

Thin films are produced by a, process in which organic polymers having long-chain side groups are dissolved in an organic solvent the solution, is spread at the water/air interface by the Langmuir- Blodgett technique and the film is transferred onto a solid base material after evaporation of the organic solvent and, the organic polymers used are those which contain longchain n-alkyl side groups bonded to the main chain of the polymer via polar groups, and some of these long-chain nalkyl side groups are replaced by shorter-chain n-alkyl side groups, by branched alkyl side groups having the same or a smaller number of carbon atoms or by equally long or shorter side groups having one or more …