Results 1 to 10 of about 49,033 (306)

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
core   +5 more sources

Relationship between intrinsic viscosity, thermal and retrogradation properties of amylose and amylopectin [PDF]

open access: yesCzech Journal of Food Sciences, 2014
The relationships between intrinsic viscosity and some properties of amylose and amylopectin were investigated. The intrinsic viscosities determined by Ubbelohde viscometer for rice, maize, wrinkled pea and potato amyloses were 46.28 ± 0.30, 123.94 ± 0 ...
Shifeng YU   +3 more
doaj   +2 more sources

Ancient Stratified Thermochemical Piles Due To High Intrinsic Viscosity [PDF]

open access: yesGeophysical Research Letters
The two Large Low Velocity Provinces (LLVPs) in the lowermost Earth mantle are thought to affect large‐scale heat and material transport, governing mantle evolution.
Matteo Desiderio, Maxim D. Ballmer
doaj   +3 more sources

Intrinsic viscosity of a suspension of cubes

open access: yesPhysical Review E, 2013
We report on the viscosity of a dilute suspension of cube-shaped particles. Irrespective of the particle size, size distribution, and surface chemistry, we find empirically that cubes manifest an intrinsic viscosity [η]=3.1±0.2, which is substantially higher than the well-known value for spheres, [η]=2.5.
Mallavajula, Rajesh K.   +2 more
openaire   +4 more sources

The terminology of intrinsic viscosity and related functions

open access: yesJournal of Colloid Science, 1946
Abstract The confusion existing in the use of symbols and names for Kraemer's “intrinsic viscosity” and other functions related to it is illustrated and deplored. The reasonable plea is made that one name be adopted for each function and that it be used with no other meaning.
L. H. Cragg
openaire   +2 more sources

DEVELOPMENT OF METHOD FOR DETERMINATION OF INTRINSIC VISCOSITY OF INJECTABLE DRUG WITH CHONDROITIN SULFATE

open access: yesРазработка и регистрация лекарственных средств, 2019
The article presents data on the development of a technique for determination of intrinsic viscosity of injectable drug with chondroitin sodium sulfate. A 0.2 M solution of sodium chloride was use as a solvent to eliminate polyelectrolyte swelling.
K. R. Saveleva   +3 more
doaj   +2 more sources

Assessing the effect of moderately increasing medium viscosity on the intrinsic dissolution rate and diffusion coefficient of ibuprofen particles

open access: yesBritish Journal of Pharmacy, 2022
This study investigated the effects of moderately increasing medium viscosity through two viscosity enhancing agents (VEA) (HPMC and sucrose) on the intrinsic dissolution of a BCS class II drug (ibuprofen).
Marina Navas Bachiller   +3 more
doaj   +1 more source

Prediction of thickening efficiency of olefin copolymers and kinematic viscosities of the blended base oils by determining intrinsic viscosities of the copolymers in cyclohexane

open access: yesEgyptian Journal of Petroleum, 2022
The engine oil contains various performance additives along with polymer-based viscosity index improver, which are made from special types of flexible long chain polymers whose functionality is derived from their thickening efficiency, viscosity ...
M.S. Negi   +4 more
doaj   +1 more source

Effect of Gamma-Ray and Temperature on the Viscosity of Polystyrene [PDF]

open access: yesمجلة التربية والعلم, 2013
In this research the effect of gamma rays had been studied on the reduced viscosity and intrinsic viscosity and Huggins constant of polystyrene (PS) solution in the solvent benzene, by the determination of the average molecular weight of (PS) using Mark -
W. A. Solyman, M. S. Buni, S. A. Ali
doaj   +1 more source

Intrinsic viscosity of stud plant mucilage

open access: yes, 2021
The study is on the intrinsic viscosity distribution of stud plant (Dicerocaryum Zanguebarium) mucilage. The data shows changes of intrinsic viscosity in water, salt solution (Sodium Chloride & Calcium Chloride) and sugar solution (glucose & lactose ...
Muyambo, S
core   +2 more sources

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