The mechanism of the copolymerization of BF3 complexed ethyl acrylate with propylene in the presence of AIBN at 25℃ were investigated. When [EA-BF3] /[EA-BF3] +[P] >0.5
the copolymerization follows the mechanism of the randon copolymerization of the ternary complex with binary complex
obtaining the acrylate-rich random copolymer. When [EA-BF3] /[EA. BF3] +[P]≤0.5
the copolymerization follows the mechanism of ternary complex homopoly-merization