| Abstract: | Inclusion polymerization of cyclic diene monomers, such as cyclopentadiene, 1,3-cyclohexadiene, 1,3-cycloheptadiene, 1,5-cyclooctadiene, and 2,5-norbornadiene, was studied, using deoxycholic acid (DCA) as the canal component. The formation of monomer-DCA adducts was observed, however, the polymerization occurred only in the case of cyclopentadiene, 1,3-cyclohexadiene, or 1,3-cycloheptadiene. The polymers obtained consisted preferably of 1,4-units and almost 100% of 1,4-units in the case of 1,3-cyclohexadiene. ESR measurements revealed that inclusion polymerization of cyclopentadiene or 1,3-cyclohexadiene in DCA canals proceeds by a free radical mechanism. |
