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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Macromolecules. 2010;43(1):213–221. doi: 10.1021/ma9019366

Table 1.

End-capping Efficiency of P(tBENI) or P(NMONI) Polymers using the Direct End-Capping Method.

Product TA R = % efficiencya
19 6 OAc 97
20 7 OC(O)C(CH3)2Br >98
21 9 CH2C(O)H 59
22 11 CH2C(O)NHS 80
23 12 CH2CH2OH 97
24 13 CH2CH2Br >98
25 14 CH2CH2SAc 91
26 15 graphic file with name nihms-159708-t0006.jpg >98
27 17 graphic file with name nihms-159708-t0007.jpg 93
28 18 graphic file with name nihms-159708-t0008.jpg >98
a

Efficiency determined from the 1H NMR integral ratio of the phenyl end group protons derived from catalyst 1 to the newly-installed end group protons.