Abstract
Engineering surface structures/textures have opened new avenues for various applications in lab-on-chip, flexible electronics, photonics, and so forth. In this work, we demonstrate the possibility of water-driven surface wrinkles of poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogel after ultraviolet (UV) irradiation in air and uptake of deionized (DI) water. Surface patterns form after the UV-irradiated pHEMA disks are taken out of DI water. We perform the Fast-Fourier-Transform analysis and calculate the characteristic wavelengths of the surface patterns. The characteristic wavelength is dependent on the combinational effect of the UV-irradiation dose, the immersion temperature, and the immersion time (initial and total immersion times). Increasing the UV-irradiation dose, the immersion temperature, and the initial immersion time increases the characteristic wavelengths of the surface patterns.
| Original language | English |
|---|---|
| Article number | 394 |
| Journal | Journal of Polymer Research |
| Volume | 28 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2021 |
Bibliographical note
Publisher Copyright:© 2021, The Polymer Society, Taipei.
Funding
SL would like to thank the Ministry of Science and Technology, Taiwan, for the financial support. We are indebted to the Taiwan Instrument Research Institute for instructing the apparatus.
| Funders | Funder number |
|---|---|
| Ministry of Science and Technology, Taiwan |
Keywords
- Ultraviolet light
- Wavelength
- Wrinkle
- poly(2-hydroxyethyl methacrylate)
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry