Initiation of cationic vinyl ether polymerization by trityl ion salts

Cationic Initiation of Vinyl Ether Polymerization Induced by (4-RC6H4)(4-RC6H4)RCX in Conjunction with Silica: Producing Highly Head Group Functionalized Polymers

“…m-cresol 16 and liquid sulfur dioxide. 17 For nitroalkanes and solvent mixtures, see ref 18. Unfortunately, in these cases the monomer consumption is not complete, the MWD is very broad, and the structure of the polymer is not uniform due to isomerization and side reactions.…”

“…Unfortunately, in these cases the monomer consumption is not complete, the MWD is very broad, and the structure of the polymer is not uniform due to isomerization and side reactions. [16][17][18] The initiation of vinyl ether polymerization in solution by completely ionized carbenium salts is by now a well-established method. 19,20 In 1991 we reported for the first time on the cationic polymerization of p-methoxystyrene as a model monomer using trityl halides (fluoride, chloride, and bromide) on the surface of Aerosil particles as initiator systems in 1,2-dichloroethane suspension at room temperature.…”

“…Trityl chloride and trityl bromide are capable of the initiation of the cationic polymerization of vinyl ethers in solvents possessing acceptor properties, e.g. m -cresol and liquid sulfur dioxide .…”

“…For nitroalkanes and solvent mixtures, see ref . Unfortunately, in these cases the monomer consumption is not complete, the MWD is very broad, and the structure of the polymer is not uniform due to isomerization and side reactions. − The initiation of vinyl ether polymerization in solution by completely ionized carbenium salts is by now a well-established method. , …”