Transparent Grafted Zwitterionic Copolymer Coatings
That Exhibit Both Antifogging and Self-Cleaning Properties
Qiaohong Liu
Jason Locklin
10.1021/acsomega.8b02867.s004
https://acs.figshare.com/articles/media/Transparent_Grafted_Zwitterionic_Copolymer_Coatings_That_Exhibit_Both_Antifogging_and_Self-Cleaning_Properties/7484594
In this work, we have investigated
a zwitterionic copolymer
that demonstrates outstanding antifogging and self-cleaning properties.
These polymer coatings are photochemically grafted to substrates containing
C–H bonds with rapid kinetics and form a robust polymer networks
on plastic and alkyl-modified glass surfaces. The copolymers consist
of a zwitterionic monomer, which provides high hydrophilicity, and
a benzophenone moiety that produces a densely cross-linked network.
The optical clarity of the substrates is not impacted by the polymer
coating and even slightly improved due to the lower refractive index
of the polymer relative to glass. The antifogging and self-cleaning
capabilities were determined by a series of experiments, where the
optical transmittance of substrates modified with copolymer coatings
was excellent under both hot and cold fogging conditions. Additionally,
surfaces contaminated with oil are easily cleaned by simply submerging
the coatings in water. Moreover, the coatings exhibit excellent chemical
and mechanical resistance and maintain antifogging properties after
abrasion testing in the presence of either chemical detergents or
common household cleaners.
2018-12-19 09:17:39
polymer coating
cross-linked network
fogging conditions
alkyl-modified glass surfaces
antifogging properties
household cleaners
polymer coatings
zwitterionic copolymer
chemical detergents
coatings exhibit
self-cleaning capabilities
abrasion testing
copolymer coatings
Self-Cleaning Properties
benzophenone moiety
Transparent Grafted Zwitterionic Copolymer Coatings
substrate
zwitterionic monomer
polymer networks
self-cleaning properties