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One amphiphilic diblock copolymer poly(NIPAm-b-M6AzCOONa) with well-defined structure was synthesized by RAFT polymerization, in which N-isopropylacrylamide (NIPAM) was introduced as one thermoresponsive unit, and 6-[4-(4-sodium carboxylatephenylazo)phenoxyl]hexyl methacrylate (M6AzCOONa) was designed as pH-, UV-responsive and fluorescent units. The block copolymer was non-fluorescent in good solvent,...
Heteroarm star-shaped polymer, (polystyrene) n –[poly(ethyl acrylate)] m [(PS) n –(PEA) m ], was synthesized in three steps. In the first step, star-shaped polystyrene, (PS) n , was synthesized by the arm-first method via atom transfer radical polymerization (ATRP) using a preformed PS macroinitiator, which was obtained by ATRP of styrene with ethyl 2-bromoisobutyrate...
A substituted ε-caprolactone, α-bromo-ε-caprolactone, was synthesized from α-bromocyclohexanone by Baeyer–Villiger reaction using 3-chloroperoxybenzoic acid. The ring-opening copolymerization of this monomer with ε-caprolactone was carried out with aluminum isopropoxide as the initiator, giving poly(ε-caprolactone-co-α-bromo-ε-caprolactone) copolymer. This copolymer was used as the macroinitiator...
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