| abstract |
The present invention relates to a process for substantially inhibiting polymer build-up on reactor surfaces during polymerization. The method generally comprises the application of a polyaniline coating composition to the reactor surfaces in contact with the reaction medium prior to charging the reactor and the carrying out of the polymerization reaction. The polyaniline coating composition broadly consists of about 0.01 to about 20% by weight of deprotonated polyaniline, such as polyaniline in the pernigraniline oxidation state, dissolved in an organic solvent carrier, such as dimethyl sulfoxide (DMSO), 1-methyl-2-pyrrolidinone (NMP), acetic acid, sulfuric acid, formic acid and tetrahydrofuran (THF). |