Outputs (554)

Criteria for extensional necking instability in complex fluids and soft solids. Part I: Imposed Hencky strain rate protocol (2016)
Journal Article

We study theoretically the necking dynamics of a filament of complex fluid or soft solid in uniaxial tensile stretching at constant imposed Hencky strain rate ϵ̇ ϵ̇, by means of linear stability analysis and nonlinear (slender filament) simulations.... Read More about Criteria for extensional necking instability in complex fluids and soft solids. Part I: Imposed Hencky strain rate protocol.

Dynamics of Star Polymers in Fast Extensional Flow and Stress Relaxation (2016)
Journal Article

We confirm the observation from Ianniruberto and Marrucci [ Macromolecules 2013, 46, 267−275] that entangled melts of branched polystyrenes behave like linear polystyrenes in the steady state of fast extensional flow, by measuring a linear, an asymme... Read More about Dynamics of Star Polymers in Fast Extensional Flow and Stress Relaxation.

Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors (2017)
Journal Article

Small, apolar aromatic groups, such as phenyl rings, are commonly included in the structures of fluorophores in order to impart hindered intramolecular rotations, leading to desirable solid-state luminescence properties. However, they are not normall... Read More about Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors.

Triggers and signatures of shear banding in steady and time-dependent flows (2016)
Journal Article

This précis is aimed as a practical field guide to situations in which shear banding might be expected in complex fluids subject to an applied shear flow. Separately for several of the most common flow protocols, it summarizes the characteristic sign... Read More about Triggers and signatures of shear banding in steady and time-dependent flows.

Boric Acid Co-crystals in Guar Gelation (2017)
Journal Article

A series of bis(pyrrolidone) and ε-caprolactam co-crystals of boric acid and 1,4-phenylenediboronic acid are reported. The high polarity of the lactam carbonyl group is highly complementary to the boronic acid hydrogen bond donor functionalities and... Read More about Boric Acid Co-crystals in Guar Gelation.

Construction and Characterization of Kilobasepair Densely Labeled Peptide-DNA (2014)
Journal Article

Formation of Obsidian Pyroclasts by Sintering of Ash Particles in the Volcanic Conduit (2016)
Journal Article

The ranges in intensity and style of volcanic eruptions, from highly explosive Plinian eruptions to quiescent lava extrusions, depend on the style and efficiency of gas loss from ascending magma. Obsidian pyroclasts – small, glassy pieces of quenched... Read More about Formation of Obsidian Pyroclasts by Sintering of Ash Particles in the Volcanic Conduit.

Gels with sense: supramolecular materials that respond to heat, light and sound (2016)
Journal Article

Advances in the field of supramolecular chemistry have made it possible, in many situations, to reliably engineer soft materials to address a specific technological problem. Particularly exciting are “smart” gels that undergo reversible physical chan... Read More about Gels with sense: supramolecular materials that respond to heat, light and sound.

Ink-Jet Printing of High-Molecular-Weight Polymers in Oil-in-Water Emulsions (2017)
Journal Article

Ink-jet printing of high-molecular-weight polymers is inhibited by the extensional elasticity of the polymer chains. This article describes how emulsions can be used to print high-molecular-weight polymers at much higher concentrations than is possib... Read More about Ink-Jet Printing of High-Molecular-Weight Polymers in Oil-in-Water Emulsions.

Polyvinylpyrrolidone modified graphene oxide as a modifer for thin film composite forward osmosis membranes (2017)
Journal Article

Polyvinylpyrrolidone (PVP) modified graphene oxide (GO), hereinafter referred to as PVP-GO, was synthesized as a novel modifier to fabricate thin film nanocomposite forward osmosis membranes. The results indicated that by coating PVP on the surface o... Read More about Polyvinylpyrrolidone modified graphene oxide as a modifer for thin film composite forward osmosis membranes.

Enhanced Lifetime of organic photovoltaic diodes utilizing a ternary blend including an insulating polymer (2016)
Journal Article

We report on the lifetime of unencapsulated organic photovoltaic diodes (OPVs) based on a ternary blend of poly(3-hexylthiophene) (P3HT), phenyl-C61-butyric acid methyl ester (PCBM) and a soft insulating polymer, poly(methyl methacrylate) (PMMA) as c... Read More about Enhanced Lifetime of organic photovoltaic diodes utilizing a ternary blend including an insulating polymer.

Exploring the knowledge complexities of innovation intermediaries: The case of nanotechnology in the UK. (2015)
Journal Article

Innovation intermediaries are critical enablers of inward and outward technology and knowledge transfer processes, particularly in domains and industries that are characterised by high complexity. Nanotechnology as a radical, generic technology is on... Read More about Exploring the knowledge complexities of innovation intermediaries: The case of nanotechnology in the UK..

Free Surface Thin Film Flow of a Sisko’s Fluid over a Surface Topography (2017)
Journal Article

The flow of a thin film down an inclined surface over topography is considered for the case of liquids with Sisko’s model viscosity. For the first time lubrication theory is used to reduce the governing equations to a non-linear evolution equation fo... Read More about Free Surface Thin Film Flow of a Sisko’s Fluid over a Surface Topography.

Proximal lava drainage controls on basaltic fissure eruption dynamics (2017)
Journal Article

Hawaiian basaltic eruptions commonly initiate as a fissure, producing fountains, spattering, and clastogenic lava flows. Most fissures rapidly localize to form a small number of eruptive vents, the location of which may influence the subsequent distr... Read More about Proximal lava drainage controls on basaltic fissure eruption dynamics.

Edge Fracture in Complex Fluids (2017)
Journal Article

We study theoretically the edge fracture instability in sheared complex fluids, by means of linear stability analysis and direct nonlinear simulations. We derive an exact analytical expression for the onset of edge fracture in terms of the shear-rate... Read More about Edge Fracture in Complex Fluids.

Viscous plugging can enhance and modulate explosivity of strombolian eruptions (2015)
Journal Article

Strombolian activity is common in low-viscosity volcanism. It is characterised by quasi-periodic, short-lived explosions, which, whilst typically weak, may vary greatly in magnitude. The current paradigm for a strombolian volcanic eruption postulates... Read More about Viscous plugging can enhance and modulate explosivity of strombolian eruptions.

Optimising Minimal Building Blocks for Addressable Self-Assembly (2017)
Journal Article

Addressable structures are characterised by the set of unique components from which they are built and by the specific location that each component occupies. For an addressable structure to self-assemble, its constituent building blocks must be encod... Read More about Optimising Minimal Building Blocks for Addressable Self-Assembly.

Triply Threaded [4]Rotaxanes (2016)
Journal Article

[4]Rotaxanes featuring three axles threaded through a single ring have been prepared through active metal template synthesis. Nickel-catalyzed sp3-sp3 homocouplings of alkyl bromide ‘half threads’ through 37- and 38-membered 2,2':6',2"-terpyridyl mac... Read More about Triply Threaded [4]Rotaxanes.

Effect of temperature on the viscoelastic properties of nano-confined liquid mixtures (2016)
Journal Article

The behaviour of fluids confined in nanoscale gaps plays a central role in molecular science and nanofluidics, with applications ranging from biological function to multiscale printing, osmosis and filtration, lab-on-chip technology and friction redu... Read More about Effect of temperature on the viscoelastic properties of nano-confined liquid mixtures.

Gelation by histidine-derived ureas (2017)
Journal Article

A series of l-histidine-derived monoureas are described which exhibit versatile organogelation peroperties when the substituent directly attached to the urea is an aliphatic group. Arylureas exhibit a tendency to bind chloride anion.