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Conducting Polymer with Orthogonal Catechol and Disulfide Anchor Groups for the Assembly of Inorganic Nanostructures

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To combine several inorganic components with organic material in a controlled special and permanent manner still remains a difficult issue. Two specifically functionalized block copolymers were synthesized separately and combined… Click to show full abstract

To combine several inorganic components with organic material in a controlled special and permanent manner still remains a difficult issue. Two specifically functionalized block copolymers were synthesized separately and combined in a second step. A heterofunctional poly(ethylene glycol) (PEG) block copolymer bearing a single amino unit, a short PEG spacer, and multiple catechol functionalities was obtained via anionic ring-opening polymerization (AROP). Using the reversible addition–fragmentation chain transfer (RAFT) radical polymerization technique, a semiconducting block copolymer with carbazole side groups was obtained. The second polyacrylate block contained reactive ester groups and was polymerized onto this hole conducting block. By substitution of the reactive esters with the amino functional PEG-catechol block copolymer and cysteamine methyl disulfide, a hole conducting polymer material with two orthogonal anchor groups for the coating of CdSe QDs, and also for TiO2, was obtained. TEM images sho...

Keywords: block; conducting polymer; disulfide; anchor groups; catechol

Journal Title: Macromolecules
Year Published: 2017

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