Results 11 to 20 of about 49,033 (306)

Molecular conformation and dilute solution properties of barley β-glucan: unveiling β-glucan as a highly flexible biopolymer under different processing conditions

open access: yesChemical and Biological Technologies in Agriculture, 2023
Background The functional properties of food fluids containing hydrocolloids are influenced by temperature, soluble salts, pH and the presence of sugars.
Abdollah Hematian Sourki   +1 more
doaj   +1 more source

Comparison of the change in viscosity of a polyvinyl alcohol solution by adding Polyethylene glycol and Polyvinylpyrrolidone to solutions of Polyvinylalcohol [PDF]

open access: yesKirkuk Journal of Science, 2022
The aim of this research is to improve the flow properties of polymers, in particular viscosity, by mixing polymers to be use in various fields. Samples prepared by stirring polyvinyl alcohol on fire for half a second in a fixed weight ratio with ...
Najla Elgheryani
doaj   +1 more source

Rheology of a Dilute Suspension of Aggregates in Shear-Thinning Fluids

open access: yesMicromachines, 2020
The prediction of the viscosity of suspensions is of fundamental importance in several fields. Most of the available studies have been focused on particles with simple shapes, for example, spheres or spheroids.
Marco Trofa, Gaetano D’Avino
doaj   +1 more source

Impact of convection on the damping of an oscillating droplet during viscosity measurement using the ISS-EML facility

open access: yesnpj Microgravity, 2021
Oscillating droplet experiments are conducted using the Electromagnetic Levitation (EML) facility under microgravity conditions. The droplet of molten metal is internally stirred concurrently with the pulse excitation initiating shape oscillations ...
Xiao Xiao   +4 more
doaj   +1 more source

Global hydrodynamic analysis of the molecular flexibility of galactomannans [PDF]

open access: yes, 2008
In the past, intrinsic viscosity and sedimentation velocity analyses have been used separately to assess the conformation and flexibility of guar and locust bean gum galactomannans based on worm-like chain and semi-flexible coil models.
Ortega, A.   +13 more
core   +1 more source

Single-Point Intrinsic Viscosity: Intrinsic Viscosity in the SEC-Viscometry

open access: yesNIPPON GOMU KYOKAISHI, 2008
Many workers proposed an equation for a single point determination of intrinsic viscosity [η]. In these methods Solomon-Cuita's and Solomon Gotesman's equations were suitable with concentration of polymer c up to specific viscosity ...
Eiichi TAKATORI, Takatoshi SHIMURA
openaire   +3 more sources

A novel global hydrodynamic analysis of the molecular flexibility of the dietary fibre polysaccharide konjac glucomannan [PDF]

open access: yes, 2009
Konjac glucomannans have been widely considered in health food products although their hydrodynamic properties have been poorly understood. The weight-average molecular weight (Mw); sedimentation coefficient (s020,w) and intrinsic viscosities ([η]) have
Kok, M. S.   +4 more
core   +1 more source

The Viscosity of Extremely Low Concentrated Anionic Polyelectrolyte Solutions

open access: yesApplied Rheology, 1999
Polyelectrolytes are macromolecules which carry a large quantity of ionizable groups along their chains. By dissolving them in suitable solvents, for example water, these groups dissociate in highly charged macroions and an equivalent quantity of low ...
Gampert Bernhard   +2 more
doaj   +1 more source

Viscometric Study of PC / PEG blends in THF solvent and Gamma-Rays Effect on the Viscosity of PC

open access: yesTikrit Journal of Pure Science, 2019
In this research the intermolecular interaction between polycarbonate (PC) and polyethyleneglycol (PEG) in tetrahydrofuran (THF) solvent was studied, at 25˚C using a dilute solution viscometry method (DSV).
M.S. Buni, W.A. Solyman, S.A. Ali
doaj   +1 more source

Investigation of rheological behaviors of aqueous gum Arabic in the presence of crystalline nanocellulose

open access: yesCarbohydrate Polymer Technologies and Applications, 2022
An investigation on the effects of addition of crystalline nanocellulose (CNC) on both the intrinsic viscosity and rheological behavior of gum Arabic (GA) is undertaken.
Kevin L. Jones   +4 more
doaj   +1 more source

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