A facile synthetic route to the branched graft copolymer BPDEM-g-PEO has been developed by combination of the RAFT-SCVP technique and aldehyde–aminooxy reaction.

Poly(3-formyl-4-hydroxybenzyl methacrylate) (PFHMA) was reacted sequentially with PEG-ONH2, hydrazine and S-benzoylthiohydroxylamine to yield a self-fluorescent polymeric H2S-donor.

A new styrenic monomer 2-propargyloxy-5vinylbenzaldehyde (PVB) containing both aldehyde and alkyne reactive groups was designed for the synthesis and subsequent orthogonal postfunctionalization of dual-clickable polymer precursor. Reversible addition-fragmentation chain transfer polymerization of PVB afforded a structurally well-defined polymer poly(2-propargyloxy-5-vinylbenzaldehyde) (PPVB) bearing alkyne and aldehyde functionalities that are reactive towards azide-and aminooxy-containing molecules, respectively. Therefore, the resulting PPVB can be served as a dual-clickable polymer scaffold for construction of multiple functional polymers via orthogonal alkyne-azide and aldehyde-aminooxy click reactions. Postpolymerization modification of PPVB sequentially with aminooxy-terminated poly(ethylene oxide)s (H 2 NO-PEO) and azide-functionalized imidazolium-type ionic liquid (N 3 -ILÁTFSI,