Phase Separation in Wetting Ridges of Sliding Drops on Soft and Swollen Surfaces

Hauer, Lukáš; Cai, Zhuoyun; Vollmer, Doris; Pham, Jonathan T.

doi:10.48550/arxiv.2208.11177

Cited by 1 publication

(8 citation statements)

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“…The same fluid separation also takes place in the case of a drop moving on a swollen PDMS surface. Hauer, et al studied the effect of droplet dynamics on the wetting ridges of a soft and swollen PDMS surface [50].…”

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

“…They used soft PDMS networks with an elastic modulus of 3-5 kPa with different amounts of swelling silicone oil [50]. The fluorescence labelling was done in the same way as that of Cai, et al (see previous page).…”

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

“…The swollen PDMS network was mounted on a motorised stage, and a 8 µL water drop was placed on the PDMS surface. The drop was fixed with a metal ring and the motorised stage moved at a constant speed [50]. The entire set up was installed on a laser confocal microscope to allow visualisation of a moving wetting ridge.…”

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

“…They also compared the dynamic separation height of various substrates with different swelling ratio Q. When Q > 10, phase separation at the ridge was consistently observed [50]. h sep also increased with an increase of swelling ratio.…”

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

“…From these observations, Hauer et al concluded that the competition of molecular flux between the PDMS network and the silicone oil, and drop advection determines the amount of liquid separation at the wetting ridge of a moving droplet [50].…”

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

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Wetting dynamics on soft surfaces

Jeon¹

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First and foremost, thank you Stefan for your guidance through the 4 years of my PhD. I am quite sure it was very tough to supervise a chemist with not so much knowledge in Physics, but you did so very patiently throughout my entire PhD. I learnt a lot from you, and really enjoyed working with you. I hope you will have a blast in Konstanz and I wish your family the very best in the future! Thank you! Also, I would like to thank Dr. Isabella Guido, and Prof. Marcus Müller for their co-supervision throughout my PhD as thesis committee members. Thank you Prof. Philipp Vana, Prof. Timo Betz, and Prof. Ulrich Parlitz for agreeing to be part of my examination board. Thank you Youchuang for being an awesome colleague and a friend. I will miss our random scientific/non-scientific discussions and your endless supply of fruits! Good luck with your new position in Harbin and don't forget me if you get a Nobel prize! Thank you Prashanth for being a very supportive friend. I always felt so relaxed after talking to you about things in life. I will miss you wandering around the corridors of the institute and randomly dropping by my office/labs! Have fun in Twente and good luck with the rest of your PhD! Thank you Olinka for being a nice office and groupmate! I still remember my first day at the institute and you were very friendly! I miss you and hope you are enjoying your time in Mexico! Thank you Ajinkya for being one of my best friends at the institute. I enjoyed chilling with you at 5pm in your office in the beginning of my PhD! Thank you Jan for being a cool football and gym buddy. I was always amazed by your beer drinking speed! I would also like to thank the other members of my group: Antaran, Franziska, and Maximilian. I will definitely miss everyone! Thank you Kris for your help with microscopes and other instruments, and also for the nice Ludwigstein retreat! Thank you Monika, Guido, Thomas, and Wolf for your help so far. I want to thank the other friends from the institute: Xin, Sebastian, Akinori, Swati, and Michiel. I'm glad that we still keep in touch even years after you leave the institute. Thank you old colleagues and friends who are now in Bayreuth, Rodrigo, Cote, and Alex. Thank you for your hospitality whenever I visit Bayreuth. Thank you Kenny for your awesome barbeque parties and random jokes in the middle of the German class! Thank you friends in the other side of the world-Hyesu, Crystal, Devico, McZingers, Jit Wu, and so on. I miss all of you! Thank you Antoine for being the best person in my life. I am very glad to have met you at this institute. Thank you for your continuous support throughout my PhD and always being there for me.Last but not least, I want to thank my parents for their endless love and support ever since the day I was born. We went through many tough events in the past two years, but we managed to stay solid as a family and continued to love each other. I dedicate my thesis to them and my grandma, whom I dearly miss.

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Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

Section: Effect Of Uncross-linked Polymer Chainsmentioning

confidence: 99%

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