Structural Analysis of Ethylene/Propylene Copolymers Synthesized with a Constrained Geometry Catalyst

The chain structures of five ethylene/propylene copolymer samples with propylene mole fractions of 0.277, 0.308, 0.321, 0.583, and 0.587 were analyzed and reported in this paper. These polymers were synthesized in a solution continuous stirred-tank reactor (CSTR) at 130−150 °C using a constrained geometry catalyst (CGC). The copolymers had polydispersities close to 2. Inverted propylene units were present. A large number of long runs of …