Lei Li, Xinjie Deng, Zi-Long Li
Jul 1, 2014
Citations
0
Influential Citations
44
Citations
Journal
Macromolecules
Abstract
We report the first example of realizing the multifunctionalization of photodegradable polymers for the preparation of reactive micropatterns. Three o-nitrobenzaldehyde monomers (M1, M2, and M3) with allyl, propargyl, and epoxy groups were synthesized in high yields by the simple reactions of 5-hydroxy-2-nitrobenzaldehyde with allyl bromide, propargyl bromide, and epichlorohydrin, respectively. Passerini multicomponent polymerization (Passerini MCP) of M1, M2, or M3 with 1,6-hexanedioic acid and 1,6-diisocyanohexane generated three poly(ester–amide)s (P1, P2, and P3), the ester linkages of which were o-nitrobenzyl derivatives with functional groups from the corresponding monomers. Therefore, these polymers are photodegradable and can also be further modified by efficient click reactions like thiol–ene, copper catalyzed azide–alkyne cycloaddition (CuAAC), and epoxy–amine reaction. Furthermore, Passerini MCP of M1, M2, and M3 with 1,6-hexanedioic acid and 1,6-diisocyanohexane could yield a photodegradable t...