SEARCH Articles Figures Tables 1 - ethylidene 5-Ethylidene-2-norbornene, copolymerization 5-Ethylidene-2-norbornene, copolymerization with ethylene ETHYLIDENE NORBORNENE COPOLYMER ETHYLIDENE NORBORNENE TERPOLYMER Ethylidenation Norbornen Norbornene