TY - JOUR
T1 - Suppressed Surface Reorganization in a High-Density Poly(methyl methacrylate) Brush
AU - Zuo, Biao
AU - Xu, Quanyin
AU - Jin, Tiancheng
AU - Xing, Huimin
AU - Shi, Jiacheng
AU - Hao, Zhiwei
AU - Zhang, Li
AU - Tanaka, Keiji
AU - Wang, Xinping
N1 - Funding Information:
This research was supported by the Natural Science Foundation of China (grant nos. 21973083 and 21674100) and the Japan Science and Technology Agency (JST)-Mirai Program (JPMJMI18A2).
Publisher Copyright:
© 2019 American Chemical Society.
PY - 2019/11/19
Y1 - 2019/11/19
N2 - A high-density poly(methyl methacrylate) (PMMA) brush (σ = 0.77 chain/nm2) with a lower molecular weight distribution was prepared onto a silicon wafer by surface-initiated atom transfer radical polymerization. The surface of the PMMA brush chains was characterized upon the process of the environmental change, from air to water, using contact angle measurements in conjunction with sum-frequency generation spectroscopy. The surface structure and properties altered less with the changing environment from air to water for the PMMA brush than for a spin-coated film; that is, the extent of surface reorganization could be suppressed by grafting densely-packed chains onto a substrate. Also, the water penetration into the brush surface was inhibited because of the densely packed chain structure.
AB - A high-density poly(methyl methacrylate) (PMMA) brush (σ = 0.77 chain/nm2) with a lower molecular weight distribution was prepared onto a silicon wafer by surface-initiated atom transfer radical polymerization. The surface of the PMMA brush chains was characterized upon the process of the environmental change, from air to water, using contact angle measurements in conjunction with sum-frequency generation spectroscopy. The surface structure and properties altered less with the changing environment from air to water for the PMMA brush than for a spin-coated film; that is, the extent of surface reorganization could be suppressed by grafting densely-packed chains onto a substrate. Also, the water penetration into the brush surface was inhibited because of the densely packed chain structure.
UR - http://www.scopus.com/inward/record.url?scp=85074882081&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074882081&partnerID=8YFLogxK
U2 - 10.1021/acs.langmuir.9b02581
DO - 10.1021/acs.langmuir.9b02581
M3 - Article
C2 - 31646872
AN - SCOPUS:85074882081
VL - 35
SP - 14890
EP - 14895
JO - Langmuir
JF - Langmuir
SN - 0743-7463
IS - 46
ER -