Initiators for cationic polymerization

Details Initiators for cationic polymerization Initiators for cationic polymerization

1991-09-03

1992-06-23

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526270, 526313, 526315, 526332, 528233, 528234, 528235, 528236, 528237, 528238, 528242, 528409, 528410, 528411, 528412, 528416, C08F 406

Patent

active

051244179

ABSTRACT:
Disclosed are novel compounds which are useful as initiators for cationically polymerizable monomers. The novel compounds comprise a carbon containing cation (e.g., trimethyloxonium) which is capable of initiating cationic polymerization and a non-nucleophilic counterion which is an at least partially fluorinated hydrocarbylsulfonato metallate (e.g. perfluoroethylsulfonato-aluminate). The disclosed initiators are capable of initiating the cationic polymerization of a wide variety of monomers such as epoxides, tetrahydrofuans, oxazolines, vinyls, lactones, and the like.

REFERENCES:
patent: 4472268 (1984-09-01), Olah
patent: 4547474 (1985-10-01), Olah
patent: 4721559 (1988-01-01), Olah
H. Meerwein, "Triethyloxonium Fluoborate", Org. Synth., coll. Vol. V, pp. 1080-1083, 1096-1099.
Mellela et al., Can. J. Chem., 1987, vol. 65, p. 2649.
R. Dalziel and F. Aubke, "Trifluoromethanesulfonate of Iodine", Inorg. Chem., 1973, vol. 12, p. 2707.
R. Miethchen, Z. Chem., 1986, vol. 26, p. 168.

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