Figure 2.

(a) One-pot deprotection of NBD and conjugation with maleimide. Note: quenched with norbornene after 4 h. (b) Pyrene chain-end functionality introduced to PLA. 1H NMR of (c) NBD-functionalized PLA, P1, and (d) PyrM-functionalized PLA, P2, in dichloromethane-d2.