Domino
Patterning of Water and Oil Induced by Emulsion Breaking
Zheng Li
Zhandong Huang
Fengyu Li
Meng Su
Huizeng Li
Zeying Zhang
Yilin Wang
Yanlin Song
10.1021/acsami.9b01407.s004
https://acs.figshare.com/articles/media/Domino_Patterning_of_Water_and_Oil_Induced_by_Emulsion_Breaking/8068004
Patterning
of water or oil is of great significance in microfluidics and printing;
however, it is still a great challenge to achieve the synchronous
patterning of water and oil. Here, we report a distinct Domino patterning
of water and oil, simultaneously originating from O/W emulsions. The
O/W emulsions first form various emulsion patterns on the textured
substrates due to local capillary differences. With the evaporation,
the emulsion breaking in emulsion patterns propagates from the boundary
toward the center along the radial direction, followed by the formation
of water droplet arrays like a Domino. Combining patterned substrates
with the Domino patterning, a variety of polymer patterns, including
circle-dot arrays, quadrangle-dot arrays, and triangle-dot arrays
on tens of micrometers, are successfully produced on the substrates.
The Domino patterning may provide a new view for phase separation
patterning, liquid directional transport, and block polymer patterns.
2019-04-15 00:00:00
block polymer patterns
Patterning
water droplet arrays
Domino patterning
phase separation patterning
emulsion patterns propagates
substrate