Synthesis of Multicompartment Nanoparticles of ABC Miktoarm Star Polymers by Seeded RAFT Dispersion Polymerization

Li, SZ (Li, Shenzhen)^{[ 1 ]} ; Nie, HJ (Nie, Huijun)^{[ 1 ]} ; Gu, S (Gu, Song)^{[ 1 ]} ; Han, ZQ (Han, Zhongqiang)^{[ 2 ]} ; Han, G (Han, Guang)^{[ 2 ]} ; Zhang, WQ (Zhang, Wangqing)^{[ 1,3 ]}

ACS MACRO LETTERS, 2019, 8(7): 783-788

DOI: 10.1021/acsmacrolett.9b00371

摘要

Polymeric multicompartment nanoparticles (MCNs) of mu-ABC miktoarm star polymers composed of poly(N,N-dimethylacrylamide) (PDMA), poly(butyl methacrylate) (PBMA), and polystyrene (PS) were synthesized by Cu(I)-catalyzed click reaction and seeded RAFT dispersion polymerization. The synthesized MCNs have a solvophobic PBMA core with separate segregated PS microdomains and a solvophilic PDMA corona. The size and/or morphology of MCNs are correlative to the length of PDMA, PBMA, and PS segments. Ascribed to the characteristic structure, MCNs of mu-DBS can decrease interfacial tension in n-hexane/water, which is much superior to linear diblock copolymer nanoassemblies.