Results 31 to 40 of about 1,359,714 (335)

Lepidium perfoliatum seed gum: investigation of monosaccharide composition, antioxidant activity and rheological behavior in presence of salts

open access: yesChemical and Biological Technologies in Agriculture, 2022
Background In the present study, the effects of NaCl and CaCl2 (0–200 mM) on the rheological properties of Lepidium perfoliatum seed gum (LPSG) as a novel potential source of hydrocolloid were investigated.
Arash Koocheki   +2 more
doaj   +1 more source

The Hydrodynamic Radii of Viscosity Index Improvers for Lubricant Oils

open access: yesTribology Online, 2019
Viscosity index improvers are polymeric additives that are commonly used to control the viscometrics of lubricants. Nevertheless, there have been few studies on the molecular size of these additives, which is the origin of their viscosity-increasing ...
Kazushi Tamura, Taeko Nakano
doaj   +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   +2 more sources

Intrinsic Viscosity Determination by “Single-Point” and “Double-Point” Equations

open access: yesApplied Rheology, 2009
“Single-point” equations used for intrinsic viscosity determination are greatly used when working with synthetic polymer solution systems. In this work we have applied them to a biological macromolecule in a bovine serum albumin (BSA)/water system ...
Curvale Rolando Antonio   +1 more
doaj   +1 more source

Sulfur polymerization strategy based on the intrinsic properties of polymers for advanced binder‐free and high‐sulfur‐content Li–S batteries

open access: yesSusMat, 2023
Lithium–sulfur (Li–S) batteries are the promising next‐generation secondary energy storage systems, because of their advantages of high energy density and environmental friendliness.
Zihui Song   +7 more
doaj   +1 more source

Waxy maize, corn and cassava starch: Thermal degradation kinetics

open access: yesSemina: Ciências Exatas e Tecnológicas, 2019
The use of starches in food and materials areas requires processing at elevated temperatures. The study of thermal degradation kinetics of starches and their relationship with amylose content, crystallinity, viscosity and thermal properties can help to ...
Aline Merci   +2 more
doaj   +1 more source

Characterization and Dimethyl Phthalate Flocculation Performance of the Cationic Polyacrylamide Flocculant P(AM-DMDAAC) Produced by Microwave-Assisted Synthesis

open access: yesMolecules, 2020
A composite flocculant P(AM−DMDAAC) was synthesized by the copolymerization of acrylamide (AM) and dimethyl diallyl ammonium chloride (DMDAAC).
Peng Zhang, Dong Qin Zhao
doaj   +1 more source

Intrinsic ambiguity in second order viscosity parameters in relativistic hydrodynamics

open access: yes, 2012
We show that relativistic hydrodynamics in Minkowski space-time has intrinsic ambiguity in second order viscosity parameters in the Landau-Lifshitz frame. This stems from the possibility of improvements of energy-momentum tensor. There exist at least two
Nakayama, Yu
core   +1 more source

Odd viscosity in chiral active fluids [PDF]

open access: yes, 2017
Chiral active fluids are materials composed of self-spinning rotors that continuously inject energy and angular momentum at the microscale. Out-of-equilibrium fluids with active-rotor constituents have been experimentally realized using nanoscale ...
Abanov, Alexander G.   +3 more
core   +4 more sources

Novel Self-Dyed Wholly Aromatic Polyamide-Hydrazides Covalently Bonded with Azo Groups in Their Main Chains: 1. Structure-Property Relationships

open access: yesMolecules, 2012
Twelve novel intrinsically colored wholly aromatic azopolyamide-hydrazides containing various proportions of para- and meta-phenylene units were successfully synthesized by a low temperature (−10 °C) solution polycondensation reaction ...
Nadia A. Mohamed   +2 more
doaj   +1 more source

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