Homopolymers and diblock copolymers of dicarboximide-functionalized oxanorbornyl monomers were synthesized using living polymerization conditions through a ring opening metathesis polymerization using a Grubbs third generation catalyst. The synthesis used two functionalized monomers with one having a diether side group and the other a phenyl side group. NMR analysis of the polymers demonstrated a cis to trans ratio from 1.2:1 to 1.7:1. Gel permeation chromatography was used to measure molecular weight and polydispersity indices. The polymer's polydispersities were found to be narrow with values of less than 1.07.  The diblock copolymers gave two glass transition (Tg) temperatures corresponding to the blocks of the copolymers with the higher Tg block shifted to a lower value relative the homopolymer due to the flexible nature of the low Tg block. Additional analysis of the effect of endo and exo stereochemistry of the monomer on the Tg will also be presented.

Synthesis and characterization of dicarboximide-functionalized oxanorbornyl homopolymer and diblock copolymers

243rd National Meeting (2012)

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