Hydrogen Bonding Effect on Wettability of Polysiloxane Coatings

View Author Information
State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, P.O. Box 545, Meilong Road 130, Shanghai 200237, People’s Republic of China
*E-mail: [email protected]. Tel.: +86-21-64252972. Fax: +86-21-64240862.
Cite this: J. Phys. Chem. C 2015, 119, 1, 420–425
Publication Date (Web):December 16, 2014
Copyright © 2014 American Chemical Society
Article Views
Read OnlinePDF (1 MB)


The effect of thermal treatment on surface wettability of polysiloxane coatings was fully studied. In contrary to the enhanced hydrophobicity of methyltrimethoxysilane (MTMS)-based coatings, the water contact angle of tetraethoxysilane (TEOS)-based coatings decreased from 70.8 to 52.8° when temperature increased from 100 to 300 °C. It was confirmed by FT-IR, solid state 29Si NMR, and X-ray photoelectron spectroscopy measurements that compared with MTMS-based coatings, that TEOS-based coatings consisted of more silanol groups, most of which were in the form of intramolecular hydrogen bonds. The further condensation at higher temperature led to a rupture of these intramolecular hydrogen bonds, resulting in high surface free energy and thus hydrophilic surface. Besides, this hydrogen bonding effect on wettability was weakened as the content of MTMS went up in MTMS/TEOS hybrid coatings.

Cited By

This article is cited by 4 publications.

  1. Karol Szubert, Jarosław Wojciechowski, Łukasz Majchrzycki, Wojciech Jurczak, Grzegorz Lota, Hieronim Maciejewski. The Rapeseed Oil Based Organofunctional Silane for Stainless Steel Protective Coatings. Materials 2020, 13 (10) , 2212. https://doi.org/10.3390/ma13102212
  2. Chih-Feng Wang, Dula Daksa Ejeta, Jian-Yi Wu, Shiao-Wei Kuo, Ching-Hsuan Lin, Juin-Yih Lai. Tuning the Wettability and Surface Free Energy of Poly(vinylphenol) Thin Films by Modulating Hydrogen-Bonding Interactions. Polymers 2020, 12 (3) , 523. https://doi.org/10.3390/polym12030523
  3. A. Mabudi, M. Noaparast, M. Gharabaghi, V.R. Vasquez. Polystyrene nanoparticles as a flotation collector: A molecular dynamics study. Journal of Molecular Liquids 2019, 275 , 554-566. https://doi.org/10.1016/j.molliq.2018.11.062
  4. Jie Zha, Xin Lu, Zhong Xin. A rational design of double layer mesoporous polysiloxane coatings for broadband antireflection. Journal of Sol-Gel Science and Technology 2015, 74 (3) , 677-684. https://doi.org/10.1007/s10971-015-3648-x