LEWIS ACID CATALYSTS SUPPORTED ON POROUS POLYMER SUBSTRATE

摘要

Immobilized Lewis Acid catalyst comprising porous polymer film substrate having at least one Lewis Acid immobilized on pore surfaces thereof, said polymer film substrate prior to having said Lewis Acid immobilized thereon comprising a porous film of functionalized polymer and, optionally, unfunctionalized polymer, said functionalized polymer having within its structure units represented by the formula and said unfunctionalized polymer having within its structure repeating monomer units represented by the formula wherein D represents OH, halide, NH2, NHR3, OM', or OM''; R1 represents hydrogen, C1-C24 alkyl, C3-C24 cycloalkyl, C6-C18 aryl or C7-C30 alkylaryl; R2 represents C3-C24 alkyl, C3-C24 cycloalkyl, C6-C18 aryl or C7-C30 alkaryl; R3 represents C1-C24 alkyl, C3-C24 cycloalkyl, C6-C18 aryl or C7-C30 alkaryl; M' represents alkali metal; M'' represents alkaline-earth metal; and x and y represent the mole % of each respective subunit, the sum of x+y being 100%. The immobilized Lewis Acid catalyst system is useful for carbocationic polymerization of olefin monomer.