Abstract
To prepare the organic/inorganic hybrid copolymer, the norbornene derivatives of polyhedral oligomeric silsequioxane(POSS) such as norbornenylethyl-POSS (N-POSS) and dimethyl(norbornenylethyl)silyloxy-POSS(N-Si- POSS) had been copolymerized with ethylene by catalyst system of rac-Et(Ind)2ZrCl2/modified methylaluminoxane(MMAO). The catalytic activity decreased with the feed amount of POSS comonomer, and it was found that the reactivity of N-Si-POSS was larger than that of N-POSS. The unreacted POSS monomer was removed completely by washing the copolymerization product with n-hexane. The melting point of copolymer decreased with POSS content while the thermal stability, especially oxidation stability of copolymer was improved in a great extent relative to conventional polyethylene.
Original language | English |
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Pages (from-to) | 53-58 |
Number of pages | 6 |
Journal | Studies in Surface Science and Catalysis |
Volume | 161 |
DOIs | |
State | Published - 2006 |