A rheometry method to assess the evaporation‐induced mechanical strength development of polymer solutions used for membrane applications
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.47038
Abstract: Rotational and oscillatory shear rheometry were used to quantify the flow behavior under minimal and significant solvent evaporation conditions for polymer solutions used to fabricate isoporous asymmetric membranes by the self-assembly and non-solvent induced phase… read more here.
Keywords: strength; evaporation; polymer solutions; strength development ... See more keywords
Magnetorheological characterization and electrospinnability of ultrasound-treated polymer solutions containing magnetic nanoparticles
Sign Up to like & getrecommendations! Published in 2018 at "Colloid and Polymer Science"
DOI: 10.1007/s00396-018-4411-y
Abstract: In order to fabricate a magnetic nanofibrous membrane by electrospinning, it is necessary to follow a suitable method for incorporating nanoparticles into a polymer solution. Ultrasound treatment represents a very effective technique for distributing magnetic… read more here.
Keywords: magnetorheological characterization; magnetic nanoparticles; polymer solutions; electrospinnability ultrasound ... See more keywords
Liquid-liquid equilibrium of hydrogen bonding polymer solutions
Sign Up to like & getrecommendations! Published in 2017 at "Polymer"
DOI: 10.1016/j.polymer.2017.06.012
Abstract: Abstract The liquid-liquid equilibrium (LLE) calculation for polymer solutions is essential for processes design of polymerization. The hydrogen bonding in polymer solutions leads to deviate remarkably from normal solutions behaviors. The perturbed hard-sphere-chain-association (PHSC-AS) equation… read more here.
Keywords: liquid; polymer solutions; liquid equilibrium; hydrogen bonding ... See more keywords
Onset of transition in the flow of polymer solutions through microtubes
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2018.234
Abstract: Experiments are performed to characterize the onset of laminar–turbulent transition in the flow of high-molecular-weight polymer solutions in rigid microtubes of diameters in the range $390~\unicode[STIX]{x03BC}\text{m}{-}470~\unicode[STIX]{x03BC}\text{m}$ using the micro-PIV technique. By considering flow in tubes… read more here.
Keywords: transition; polymer solutions; polymer; unicode stix ... See more keywords
Electrophoresis in dilute polymer solutions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.926
Abstract: We analyse the electrophoresis of a weakly charged particle with a thin double layer in a dilute polymer solution. The particle velocity in polymer solutions modelled with different constitutive equations is calculated using a regular… read more here.
Keywords: velocity; dilute polymer; polymer solutions; polymer ... See more keywords
Alignment of Colloidal Rods in Crowded Environments
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecules"
DOI: 10.1021/acs.macromol.2c00769
Abstract: Understanding the hydrodynamic alignment of colloidal rods in polymer solutions is pivotal for manufacturing structurally ordered materials. How polymer crowding influences the flow-induced alignment of suspended colloidal rods remains unclear when rods and polymers share… read more here.
Keywords: colloidal rods; polymer solutions; rods crowded; alignment colloidal ... See more keywords
Compression of Nanoslit Confined Polymer Solutions
Sign Up to like & getrecommendations! Published in 2018 at "Macromolecules"
DOI: 10.1021/acs.macromol.7b01894
Abstract: Many systems of biophysical and technological interest consist of multiple interpenetrating chains in a confined volume, i.e., a confined polymer solution. Using nanofluidic approaches developed originally for the study of single chains in confined geometries,… read more here.
Keywords: confined polymer; polymer solutions; nanoslit confined; compression nanoslit ... See more keywords
Nanorheology of Polymer Solutions: A Scaling Theory
Sign Up to like & getrecommendations! Published in 2019 at "Macromolecules"
DOI: 10.1021/acs.macromol.9b01272
Abstract: The current theory of viscoelasticity of polymer fluids deals with their response to time-dependent macroscopic perturbations on arbitrary time scales. We use scaling methods to calculate the elastic and dissipative moduli G′ and G″ on… read more here.
Keywords: nanorheology polymer; scaling theory; polymer solutions; solutions scaling ... See more keywords
Extensional Flow-Induced Concentration Gradient in Entangled Polymer Solutions with Chemically Identical Species.
Sign Up to like & getrecommendations! Published in 2024 at "ACS macro letters"
DOI: 10.1021/acsmacrolett.3c00585
Abstract: Entangled polymer solutions show different rheological behavior from melts in fast extensional flow. This discrepancy is not expected according to the classic tube model and is an urgent issue to be solved in polymer physics.… read more here.
Keywords: flow induced; polymer solutions; concentration gradient; induced concentration ... See more keywords
Two regions of microphase separation in ion-containing polymer solutions.
Sign Up to like & getrecommendations! Published in 2017 at "Soft matter"
DOI: 10.1039/c7sm01340j
Abstract: The phenomenon of spinodal decomposition in weakly charged polyelectrolyte solutions is studied theoretically within the random phase approximation. A novel feature of the theoretical approach is that it accounts for the effects of ionic association,… read more here.
Keywords: separation; microphase separation; ion; polymer solutions ... See more keywords
Determining electrospun morphology from the properties of protein-polymer solutions.
Sign Up to like & getrecommendations! Published in 2018 at "Soft matter"
DOI: 10.1039/c7sm02203d
Abstract: Integrating natural macromolecules, e.g. proteins, is a progressive trend in the fabrication of biocompatible sub-micrometer fibers with tunable diameters using the electrospinning technique. The correlation between solution properties and electrospun morphology is critical; it is… read more here.
Keywords: solution properties; polymer solutions; protein polymer; surface tension ... See more keywords