Abstract
Hemopolymerizations of 3-allylcyclopentene and 3-vinylcyclopentene were carried out with cationic catalysts. The reactivity of 3-vinylcyclopentene was higher than that of 3-allylcyclopentene. Poly (3-allylcyclopentene) was soluble in common organic solvents, while poly (3-vinylcyclopentene) contained insoluble fracdons. It was indicated by IR and NMR spectroscopic analyses that poly (3-allylcyclopentene) had more than 76% of the bicyclic structure and poly (3-vinylcyclopentene) contained more than 72% of the bicyclic structure. It was also shown that the intramolecular hydride transfers did not take place to a significant extent during cationic propagation of these monomers.
Soluble cyclocopolymers of maleic anhydride with 3-3llylcyclopentene and 3-vinylcyclopentene were obtained with α, α′-azobisisobutyronitrile initiator. The copolymer compesitions were close to 2: 1 monomer units.
