TY - JOUR
T1 - Synthesis and Porous SiO2 Nanofilm Formation of the Silsesquioxane-Containing Amphiphilic Block Copolymer
AU - Ishizaki, Yuya
AU - Yamamoto, Shunsuke
AU - Miyashita, Tokuji
AU - Mitsuishi, Masaya
N1 - Funding Information:
We thank JNC Corporation for providing SQ monomers. The work was partially supported by a Grant-in-Aid for Scientific Research (B) (16H04197) from the Japan Society for the Promotion of Science (JSPS).
Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/7/10
Y1 - 2018/7/10
N2 - We describe the synthesis, Langmuir-Blodgett (LB) film formation, and photo-oxidation of an organic-inorganic hybrid block copolymer consisting of N-dodecyl acrylamide (DDA) and silsesquioxane (SQ) comonomers [p(DDA/SQ26)-b-pDDA]. The copolymer was synthesized by reversible addition fragmentation chain transfer polymerization of DDA and SQ. Higher monolayer stability at the air-water interface was confirmed for p(DDA/SQ26)-b-pDDA. The p(DDA/SQ26)-b-pDDA monolayer was deposited onto solid substrates with a monolayer thickness of 2.3 nm. The photo-oxidized SiO2 nanofilm revealed its porous structure, which reflects phase-separated structures of p(DDA/SQ26)-b-pDDA, as confirmed using atomic force microscopy, quartz crystal microbalance, and cyclic voltammetry measurements. These results demonstrate that this preparation method using photo-oxidation of the organic-inorganic hybrid block copolymer LB film is promising for manipulating pore formations of inorganic oxide nanofilms.
AB - We describe the synthesis, Langmuir-Blodgett (LB) film formation, and photo-oxidation of an organic-inorganic hybrid block copolymer consisting of N-dodecyl acrylamide (DDA) and silsesquioxane (SQ) comonomers [p(DDA/SQ26)-b-pDDA]. The copolymer was synthesized by reversible addition fragmentation chain transfer polymerization of DDA and SQ. Higher monolayer stability at the air-water interface was confirmed for p(DDA/SQ26)-b-pDDA. The p(DDA/SQ26)-b-pDDA monolayer was deposited onto solid substrates with a monolayer thickness of 2.3 nm. The photo-oxidized SiO2 nanofilm revealed its porous structure, which reflects phase-separated structures of p(DDA/SQ26)-b-pDDA, as confirmed using atomic force microscopy, quartz crystal microbalance, and cyclic voltammetry measurements. These results demonstrate that this preparation method using photo-oxidation of the organic-inorganic hybrid block copolymer LB film is promising for manipulating pore formations of inorganic oxide nanofilms.
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U2 - 10.1021/acs.langmuir.8b01114
DO - 10.1021/acs.langmuir.8b01114
M3 - Article
C2 - 29939748
AN - SCOPUS:85049725099
SN - 0743-7463
VL - 34
SP - 8007
EP - 8014
JO - Langmuir
JF - Langmuir
IS - 27
ER -