TY - JOUR
T1 - Molecular aggregation structure and water repellency of Poly(perfluorohexyl acrylate) with a carbamate linkage
AU - Liu, Yi
AU - Higaki, Yuji
AU - Mukai, Masaru
AU - Takahara, Atsushi
N1 - Funding Information:
Yi Liu gracefully acknowledges China Scholarship Council (Grant No. 201608525036 ), Guizhou Science and Technical Foundation (Grant No. 20152124 ), Guizhou Oversea Talent Project (Qianren Xiangmu Zizhu Hetong No. 201414 ) and the Science Foundation of Guizhou Normal College (Guishiyuan Xiangmu Zizhu Hetong No. 14BS014 ) for the financial support. This work was supported by the Photon and Quantum Basic Research Coordinated Development Program of the Ministry of Education, Culture, Sports, Science and Technology, Japan . This work was supported by ImPACT Program of Council for Science, Technology, and Innovation (Cabinet Office, Government of Japan) . This work was performed under the Cooperative Research Program “ Network Joint Research Center for Materials and Devices ” . This work was also supported by the MEXT Project “ Integrated Research Consortium on Chemical Sciences. ” The GI-WAXD experiments were performed at the BL40B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2017B1086, and 2018A1177). We gratefully acknowledge Dr. Taiki Hoshino, Dr. So Fujinami, and Dr. Tomotaka Nakatani for their assistance in the WAXD measurements at BL05XU beamline in SPring-8.
Funding Information:
Yi Liu gracefully acknowledges China Scholarship Council (Grant No. 201608525036), Guizhou Science and Technical Foundation (Grant No. 20152124), Guizhou Oversea Talent Project (Qianren Xiangmu Zizhu Hetong No. 201414) and the Science Foundation of Guizhou Normal College (Guishiyuan Xiangmu Zizhu Hetong No. 14BS014) for the financial support. This work was supported by the Photon and Quantum Basic Research Coordinated Development Program of the Ministry of Education, Culture, Sports, Science and Technology, Japan. This work was supported by ImPACT Program of Council for Science, Technology, and Innovation (Cabinet Office, Government of Japan). This work was performed under the Cooperative Research Program “Network Joint Research Center for Materials and Devices”. This work was also supported by the MEXT Project “Integrated Research Consortium on Chemical Sciences.” The GI-WAXD experiments were performed at the BL40B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2017B1086, and 2018A1177). We gratefully acknowledge Dr. Taiki Hoshino, Dr. So Fujinami, and Dr. Tomotaka Nakatani for their assistance in the WAXD measurements at BL05XU beamline in SPring-8.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/11/7
Y1 - 2019/11/7
N2 - Liquid repellency of comb-shaped polyacrylates with perfluoroalkyl side-chains associates with the ordered structure of the side-chains at the surface. The molecular aggregation structure and surface properties of poly{2-[(perfluorohexylethyl)carbamate]ethyl}acrylate (PFAUr-C6) were studied using differential scanning calorimetry (DSC), polarized optical microscopy (POM), powder wide-angle X-ray diffraction (WAXD), grazing incidence wide-angle X-ray diffraction (GI-WAXD), temperature-controlled Fourier transform infrared spectroscopy (FTIR), contact angle measurements, and X-ray photoelectron spectroscopy (XPS). Poly[2-(perfluorohexyl)ethyl]acrylate (PFA-C6) was compared with PFAUr-C6 to verify the effect of carbamate linkage on the aggregation structure and surface properties. The perfluorohexyl groups in PFAUr-C6 produced a double-layered smectic structure, whereas the perfluorohexyl groups in PFA-C6 showed no ordered structure. The double-layered smectic structure in PFAUr-C6 was induced by the hydrogen bonding interaction in the carbamate linkers. PFAUr-C6 showed poor water repellency similar to PFA-C6 because of the rapid surface rearrangement. Although the perfluorohexyl groups produced smectic order structure at the film surface, the lack of positional order in the smectic layers and the low ordered structure content allowed the surface rearrangement.
AB - Liquid repellency of comb-shaped polyacrylates with perfluoroalkyl side-chains associates with the ordered structure of the side-chains at the surface. The molecular aggregation structure and surface properties of poly{2-[(perfluorohexylethyl)carbamate]ethyl}acrylate (PFAUr-C6) were studied using differential scanning calorimetry (DSC), polarized optical microscopy (POM), powder wide-angle X-ray diffraction (WAXD), grazing incidence wide-angle X-ray diffraction (GI-WAXD), temperature-controlled Fourier transform infrared spectroscopy (FTIR), contact angle measurements, and X-ray photoelectron spectroscopy (XPS). Poly[2-(perfluorohexyl)ethyl]acrylate (PFA-C6) was compared with PFAUr-C6 to verify the effect of carbamate linkage on the aggregation structure and surface properties. The perfluorohexyl groups in PFAUr-C6 produced a double-layered smectic structure, whereas the perfluorohexyl groups in PFA-C6 showed no ordered structure. The double-layered smectic structure in PFAUr-C6 was induced by the hydrogen bonding interaction in the carbamate linkers. PFAUr-C6 showed poor water repellency similar to PFA-C6 because of the rapid surface rearrangement. Although the perfluorohexyl groups produced smectic order structure at the film surface, the lack of positional order in the smectic layers and the low ordered structure content allowed the surface rearrangement.
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U2 - 10.1016/j.polymer.2019.121846
DO - 10.1016/j.polymer.2019.121846
M3 - Article
AN - SCOPUS:85072776929
VL - 182
JO - Polymer
JF - Polymer
SN - 0032-3861
M1 - 121846
ER -