Synthesis and AIE properties of PEG–PLA–PMPC based triblock amphiphilic biodegradable polymers
Literature Information
Xinli Liu, Yubin Huang, Dongmei Cui
Using a O,N,N,O-tetradentate Salan yttrium alkyl complex as the precursor and monohydric PEG as the chain transfer agent, rac-LA and MPC monomers were sequentially ring-opening polymerized via living immortal mode to give biodegradable triblock amphiphilic copolymers of (PEG-b-PLA-b-PMPC) (PEG = poly(ethylene glycol) and MPC = 5-methyl-5-propargyloxycarbonyl-propylene carbonate). The subsequent “click” reaction between the azide functionalized AIE fragment tetraphenylethylene TPE-N3 and the alkyne substituent on the PMPC block provided swiftly the first AIE functionalized biodegradable amphiphilic copolymers. These copolymers self-assembled into homogeneous micelles that exhibited a tailored PL intensity and fine AIE performance, and should be attractive candidates for bioimaging and chemosensor applications.
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![N-[2,6-Di(9-anthryl)-4-oxido-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoromethanesulfonamide structure N-[2,6-Di(9-anthryl)-4-oxido-8,9,10,11,12,13,14,15-octahydrodinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-yl]-1,1,1-trifluoromethanesulfonamide structure](https://static.chemtradehub.com/structs/122/1227374-64-2-cdb5.webp)