joshuadijksman

Molecular control over vitrimer-like mechanics – tuneable dynamic motifs based on the Hammett equation in polyimine materials

Chemistry is cool. WHo would have thought that changing a side group on a polymeric component can change the rheology of the whole network by adjusting the exchange rate kinetics? Sybren K. Schoustra, Joshua A. Dijksman, Han Zuilhof, Maarten M. J. Smulders — Chemical Science 12, 293–302 (2021) 10.1039/d0sc05458e

Mushroom-shaped adhesives stick!

Congratulations Preeti and Vittorio with getting the article out in Biointerphases. Thanks also to Vincent for contributing to this study through his MSc thesis work.

Anisotropic Stiffness Adhesives for High Shear Forces on Soft Substrates

Geometry affects mechanics, also in substrates. P. van Assenbergh, Frank Haring, Joshua A. Dijksman, Dimitra Dodou — Advanced Materials Interfaces 7 (2020) 10.1002/admi.202001173

Thermodynamics never gets old

Especially not with cocktail demos. The cola does get old though. The wipes make it a corona proof on-campus activity!

Sheared Amorphous Packings Display Two Separate Particle Transport Mechanisms

Diffusion is a tensor. And that matters. Dong Wang, Joshua A. Dijksman, Jonathan Barés, Jie Ren, Hu Zheng — Physical Review Letters 125 (2020) 10.1103/physrevlett.125.138001

Natural and induced surface roughness determine frictional regimes in hydrogel pairs

The name says it all. Hydrogels come with very different surface roughnesses, which gives them different frictional behavior.

Direct evidence of stress-induced chain proximity in a macromolecular complex

PEG/PAA mixtures display shear-induced gelation which can be traced back to chain proximity with NOESY techniques and most likely hydrogen bonding. Steven van Kesteren, Tatiana Nikolaeva, Henk Van As, Joshua A. Dijksman — Physical Review Materials 4 (2020) 10.1103/physrevmaterials.4.055603

Author Archives: joshuadijksman