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A series of crosslinked poly(norbornene-dicarboximide)s have been prepared by ring opening metathesis polymerization. Increasing quantities of a bifunctional norbornene-dicarboximide crosslinker was doped into a high Tg cyclohexyl-substituted norbornene-dicarboximide monomer before polymerization. The wt% of the crosslinker was increased from 0.00 to 4.40wt%, after which the polymers became gelated...
A side chain EO copolymer series has been synthesized by ROMP using the Grubbs 3rd generation initiator and quenched with ethyl vinyl ether. The copolymers were prepared by combining two norbornene-dicarboximide monomers, one with a cyclohexyl substituent and another substituted with an FTC chromophore. The mol% of the chromophore-substituted monomer was varied from 0.00 mol% to 22.92 mol%, all polymers...
Poly(N-adamantyl-exo-norbornene-5,6-dicarboximide) was prepared by ring opening metathesis polymerization. This was achieved in chloroform using the Grubbs 1st generation initiator and quenched with ethyl vinyl ether. The polymer had a weight average molecular weight of 27,000g/mol with a polydispersity index of 2.19, a high glass transition temperature of 281°C and a high thermal decomposition temperature...
A sequence of well controlled tert-butyldiphenylsilyl substituted poly(norbornene-dicarboximide)s with ascending molecular weights have been prepared using the Grubbs 1st generation catalyst in anhydrous chloroform. The kinetics of the polymerization was examined using nuclear magnetic resonance spectroscopy and gel permeation chromatography. By decreasing the Grubbs catalyst concentration, the polymer...
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