Abstract
AbstractThe complex [Pd(κ2‐P,O‐{2‐(2‐MeOC6H4)2P}C6H4SO3)Me(dmso)] (1) is investigated for the copolymerization of (E) with norbornene (N) and functionalized N derivatives affording P(E‐co‐N) in excellent yields. Copolymer molar masses are higher than those of PE and increase with N concentration. In addition, the complex [Ti(κ2‐N,O‐{2,6‐F2C6H3N = C(Me)C(H) = C(CF3)O})2Cl2] (2) is evaluated as catalyst for living E‐co‐N copolymerization upon activation with dried methylaluminoxane between 25 and 90 °C. Copolymerization at different [N]/[E] feed ratios affords stereoirregular alternating high molar mass P(E‐co‐N) with narrow molar mass distribution. P(E‐co‐N) living copolymerization is demonstrated by kinetics at 50 °C. Block copolymers are synthesized and fully characterized. magnified image
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