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. Author manuscript; available in PMC: 2010 Apr 7.
Published in final edited form as: Macromolecules. 2009 Feb 10;42(3):599–605. doi: 10.1021/ma801693q

Scheme 3. Block Copolymers of Norbornene and tCOa.

Scheme 3

a (i) [M]0/1 = 100, PPh3/1 = 2, 23 °C, 30 min; (ii) added to a solution of tCO in THF [M]0 = 0.1 M, PPh3/1 = 58, 23 °C, 10 min; (iii) tosyl hydrazide, nPr3N, xylenes 150 °C.