I am joined (in late Dec 2020) by Dr Edwin Johnson, a recent PhD graduate from the University of Newcastle and current Postdoctoral researcher at the University of Sheffield. We discuss his PhD titled Competition in Polymer Brushes – Understanding specific ion effects in complex environments.
Ed’s Twitter @Ed_Johnson_Au
Temperature dependent specific ion effects in mixed salt environments on a thermoresponsive poly(oligoethylene glycol methacrylate) brush – https://doi.org/10.1039/C8CP06644B
Interplay of Composition, pH, and Temperature on the Conformation of Multi-stimulus-responsive Copolymer Brushes: Comparison of Experiment and Theory – https://doi.org/10.1021/acs.langmuir.0c00424
Enrichment of Charged Monomers Explains Non-monotonic Polymer Volume Fraction Profiles of Multi-stimulus Responsive Copolymer Brushes – https://pubs.acs.org/doi/abs/10.1021/acs.langmuir.0c01502
The direction of influence of specific ion effects on a pH and temperature responsive copolymer brush is dependent on polymer charge –https://doi.org/10.1016/j.polymer.2020.123287
00:00:57 – Intro
00:01:40 – Decision to do a PhD
00:03:33 – Changes through the PhD
00:05:19 – Submitting a PhD during COVID
00:08:20 – Break down of Ed’s Thesis. Bridging chemistry and biology with polymers. What is a polymer brush?
00:15:00 – Throwing out logistics for potential applications. Spider-man gloves. Sound responsive polymers for deafness?
00:20:21 – Projects of the thesis.
00:21:00 – Specific ion effects.
00:23:20 – Mixtures of salts; mixtures of polymers
00:25:26 – Multi-stimulus responsive polymers
00:26:05 – Neutron Reflectometry
00:26:47 – Competitive specific ion effects
00:29:14 – ANSTO – researching with neutrons. Nuclear research.
00:34:14 – Neutron Reflectometry vs Ellipsometry – how they work
00:37:45 – Music – the importance of other passions during a PhD.
00:39:21 – Live Melodica music
00:40:21 – Exercise (Running and Street Orienteering)
00:41:42 – Travelling during the PhD
00:44:16 – Moving to the UK. Postdoctoral position the University of Sheffield. Concern about travelling.
00:55:00 – Differences in research with the Netherlands
00:57:26 – Anything you could research.
01:05:44 – Working hard, or smart?
01:10:38 – Wrapping up
01:12:55 – Food science – so complicated at the chemical level.
01:18:26 – Ethics discussion on using cadavers on bypass for research?
01:25:00 – Hype science and journalism.
01:27:42 – How does smell work?
01:29:26 – Mouth feel science.
01:32:12 – Aussie chat.
01:34:44 – Call out for Aussie things for Ed to take to the UK?
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