Abstract
We determine diffusion and partition coefficients of 2-hydroxy-2-methylpropiophenone, a widely used photo-initiator, in nanoporous polydimethylsiloxane network and poly(ethylene glycol) diacrylate solution as model precursor solution. We spectroscopically measure average concentration of 2-hydroxy-2-methylpropiophenone in each media, which is compared to the one estimated from one-dimensional diffusion models to obtain diffusion coefficient. Partition coefficient is obtained by measuring saturated concentration of 2-hydroxy-2-methylpropiophenone in each media. Our results enables predicting concentration of 2-hydroxy-2-methylpropiophenone as it diffuses from precursor solution to crosslinked PDMS, which typically occurs when hydrogel is formed inside microfluidic device via photo-polymerization to create nano-structured or micro-structured hydrogel including microfluidic valves.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
