

FOLLOWUS
College of Chemistry, Beijing Normal University, Beijing 100875, China
E-mail zouyq@263.net
Received:24 May 2017,
Accepted:22 September 2017,
Online First:20 December 2017,
Published:05 April 2018
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Shu-Qing Fang, Yu-Lian Pang, Ying-Quan Zou. Synthesis, UV-curing Behavior and Surface Properties of New Fluorine-containing Aromatic Oxetane Monomers[J]. Chinese Journal of Polymer Science, 2018, 36(4): 521-527.
Shu-Qing Fang, Yu-Lian Pang, Ying-Quan Zou. Synthesis, UV-curing Behavior and Surface Properties of New Fluorine-containing Aromatic Oxetane Monomers[J]. Chinese Journal of Polymer Science, 2018, 36(4): 521-527. DOI: 10.1007/s10118-018-2048-4.
In this paper
we combined high-end cationic UV-curable material with fluorinated chain obtaining a series of new fluorine-containing aromatic oxetane monomers
via
a mild nucleophilic substitution reaction. The structures and properties of monomers were characterized using
1
H-NMR
19
F-NMR
dynamic viscosity tests and differential scanning calorimetry (DSC). It was determined that all of the fluorinated monomers obtained had much lower viscosity and higher thermostability after the introduction of hexafluorobenzene. Then
UV-curable coatings were prepared using four fluorine-containing aromatic oxetane monomers (FOX1-4); the UV-curing kinetics
with three kinds of initiators
and properties of the cured films were evaluated using real-time Fourier transform infrared (FTIR) spectroscopy
water and diiodomethane contact angle tests
surface energy calculations and scanning electron microscopy (SEM). The FTIR spectroscopy results showed that the coatings possessed excellent conversion rate (
>
99% with liquid initiator PAG-201 in 150 s)
and as the fluorine content increased
the monomers exhibited decreased mobility with the increasing viscosity and worse solubility with fluorinated monomers
resulting in a lower conversion rate. Moreover
the coatings possessed favorable hydrophobic and oleophobic properties and low surface energies owing to the fluoride chains floating to the membrane-air interface
which was also confirmed by discrete concave structures in SEM images. These new kinds of monomers can replace traditional fluorinated cationic monomers applied to the fingerprint resistant
fouling resistant
scratch resistant and anti-aging coatings
adhesives or printing ink materials.
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