%0 Journal Article
%A Onses, M. Serdar
%D 2015
%T Fabrication of Nanopatterned Poly(ethylene glycol)
Brushes by Molecular Transfer Printing from Poly(styrene-block-methyl methacrylate) Films to Generate Arrays of Au Nanoparticles
%U https://acs.figshare.com/articles/journal_contribution/Fabrication_of_Nanopatterned_Poly_ethylene_glycol_Brushes_by_Molecular_Transfer_Printing_from_Poly_styrene_i_block_i_methyl_methacrylate_Films_to_Generate_Arrays_of_Au_Nanoparticles/2212708
%R 10.1021/la504359f.s001
%2 https://acs.figshare.com/ndownloader/files/3848236
%K copolymer
%K film
%K PEG brushes
%K Molecular Transfer Printing
%K NP
%K pattern
%K poly
%K PMMA
%K Poly
%K BCP
%K glycol
%K methacrylate
%X This
article presents a soft lithographic approach using block
copolymer (BCP) films to fabricate functional chemically patterned
polymer brushes on the nanoscale. Hydroxyl-terminated poly(ethylene
glycol) (PEG-OH) was transfer printed from the poly(methyl methacrylate)
(PMMA) domains of self-assembled poly(styrene-block-methyl methacrylate) films to a substrate in conformal contact with
the film to generate patterned PEG brushes mirroring the pattern of
BCP domains. A key point in the study is that the chemistry of the
functional transferred brushes is different from the chemistry of
either block of the copolymer; PEG-OH is miscible only in the PMMA
block and therefore transferred only from PMMA domains. The functionality
of the PEG brushes was demonstrated by the selective immobilization
of citrate-stabilized Au NPs (15 nm) and validated the generation
of high-quality chemical patterns with sub-30-nm feature sizes.
%I ACS Publications