Results 21 to 30 of about 168,848 (298)

The influence of demagnetization on the magnetic after-effect of Co-Cr micro structures [PDF]

open access: yes, 1993
The influence of the demagnetization field on the magnetic after-effect of Co-Cr media is discussed. The demagnetizing field of as-sputtered Co-Cr was changed into block-shaped micro structures by lithographic processes.
Lintelo, Hans te   +3 more
core   +2 more sources

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

Study of the Molecular Weight of Pullulan Produced by Aureobasidium pullulans from Industrial Waste

open access: yesMaterials Research, 2023
The objective of this research was the sustainable development of pullulan and its structural and rheological characterization. In addition, the cultivation of the A.
Victor R. L. Oliveira   +3 more
doaj   +1 more source

Modeling and Scaling of the Viscosity of Suspensions of Asphaltene Nanoaggregates

open access: yesEnergies, 2017
The scaling and modeling of the viscosity of suspensions of asphaltene nanoaggregates is carried out successfully taking into consideration the solvation and clustering of nanoaggragates, and the jamming of the suspension at the glass transition volume ...
Rajinder Pal
doaj   +1 more source

Miscibility study of poly acrylamide (PAM) and Acacia Senegal (gum arabic) blends [PDF]

open access: yesChemical Review and Letters, 2019
The work entails the viscometric study of a common plant gum found in Nigeria (Acacia Senegal) blended with polyacrylamide (PAM). The gum was purified after collected and mixed in specific ratios of 10:90, 30:70, 50:50, 70:30 and 90:10 with PAM, before ...
David Arthur   +4 more
doaj   +1 more source

The Investigation of Viscometric Properties of the Most Reputable Types of Viscosity Index Improvers in Different Lubricant Base Oils: API Groups I, II, and III

open access: yesLubricants, 2022
Four commercial viscosity index improvers (VII) have been used to investigate the behavioral differences of these compounds in three types of universally applicable base oils.
Seyed Ali Khalafvandi   +2 more
doaj   +1 more source

Intrinsic Viscosity of Cyclic Polystyrene

open access: yesMacromolecules, 2017
The intrinsic viscosity of cyclic polystyrenes (C-PS) and linear polystyrenes (L-PS) with molecular weight (MW) ranging from 16K to 370K was measured in THF using size exclusion chromatography coupled with a triple detection system. The C-PS samples were prepared by a ring-closure reaction of telechelic linear precursor synthesized by anionic ...
Youncheol Jeong   +4 more
openaire   +3 more sources

Generalization of a Double-Point Method to Determine the Intrinsic Viscosity in a Polymer-Solvent Mixture

open access: yesChemical Engineering Transactions, 2013
A double-point method proposed in literature for the determination of the Intrinsic Viscosity of a polymer-solvent solution and based on the Ram-Moham-Rao single point equation, have been extended to all single-point expressions available in literature ...
E.A. Diez   +4 more
doaj   +1 more source

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