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Clustered assembly of Au nanoparticles from spherical diblock copolymer micelles encapsulating Au nanoparticle
Author(s) -
Kim Jang Hwan,
Zakia Maulida,
Kim Joo Hyun,
Park Seong Soo,
Yoon Jinhwan,
Huh PilHo,
Yoo Seong II
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44693
Subject(s) - micelle , copolymer , nanoparticle , materials science , acrylic acid , polystyrene , chemical engineering , plasmonic nanoparticles , self assembly , polymer chemistry , nanotechnology , aqueous solution , polymer , chemistry , organic chemistry , composite material , engineering
Superstructures composed of diblock copolymer micelles and inorganic nanoparticles are quite interesting because the specific arrangement of inorganic nanoparticles within the micellar structure can reveal interesting opportunities in many field of science. In this perspective, we report a simple method to produce clustered assembly of Au nanoparticles in the micelles in attempt to induce plasmonic coupling among multiple Au nanoparticles in the assembled structures. Here, we utilized polystyrene‐block‐poly(acrylic acid), PS‐PAA, micelles containing single Au nanoparticle in the core (Au@PS‐PAA micelles) as building materials to initiate next‐level assembling process. In particular, the addition of HCl to the solution of Au@PS‐PAA micelles affected the overall equilibrium condition as well as kinetic process in the micellar solution. As a result, individual Au@PS‐PAA micelles could be merged together to form more large micelles with inclusion of multiple nanoparticles in the core, the process of which was accompanied with plasmonic coupling of Au nanoparticles. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44693.