Co-nonsolvency in concentrated aqueous solutions of PNIPAM: effect of methanol on the collective and the chain dynamics

Soft Matter ◽  
2020 ◽  
Vol 16 (36) ◽  
pp. 8462-8472
Author(s):  
Konstantinos N. Raftopoulos ◽  
Konstantinos Kyriakos ◽  
Matthias Nuber ◽  
Bart-Jan Niebuur ◽  
Olaf Holderer ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Neutron Scattering ◽  
Polymer Dynamics ◽  
Concentrated Solutions ◽  
Chain Dynamics ◽  
Concentrated Aqueous Solutions ◽  
Isopropyl Acrylamide ◽  
Light And Neutron Scattering

The polymer dynamics in concentrated solutions of poly(N-isopropyl acrylamide) in water/methanol mixtures is investigated using light and neutron scattering.

Necklace-like microstructure in shallow-quenched aqueous solutions of poly(n-isopropylacrylamide), detected by advanced small-angle neutron scattering methods

Soft Matter ◽  
2019 ◽  
Vol 15 (4) ◽  
pp. 671-682 ◽  
Author(s):  
Satoshi Koizumi ◽  
Masahiko Annaka ◽  
Dietmar Schwahn
Keyword(s):  
Phase Transition ◽  
Aqueous Solutions ◽  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Volume Phase Transition ◽  
Volume Phase ◽  
Isopropyl Acrylamide

The microstructure of aqueous poly(N-isopropyl acrylamide) (PNIPA) gel and solution was investigated by small-angle neutron scattering (SANS) in the vicinity of the gel volume phase transition at TV (= 34 °C).

scholarly journals IX.—On the Relationship between Concentration and Electrolytic Conductivity in Concentrated Aqueous Solutions

1906 ◽  
Vol 45 (1) ◽  
pp. 241-259 ◽  
Author(s):  
John Gibson
Keyword(s):  
Aqueous Solutions ◽  
General Relationship ◽  
Electrolytic Conductivity ◽  
Dilute Solutions ◽  
Concentrated Solutions ◽  
Concentrated Aqueous Solutions ◽  
Solutions Of Electrolytes ◽  
Weak Electrolytes ◽  
The Relationship

Although great advances have been made during the last thirty years in our knowledge of dilute solutions, there has been no corresponding advance in respect of concentrated solutions. This is primarily due to the fact that hitherto no simple and general relationship has been discovered between the conductivity and the concentration of concentrated solutions of electrolytes. Ostwald's law of dilution holds only for dilute solutions of weak electrolytes, and the formulæ of Rudolphi and Van T'Hoff are applicable only to dilute solutions of good electrolytes. It seems therefore important to inquire whether the difficulty may not be to some extent overcome by an alteration in the mode of representing the facts.

Hydration of the chloride ion in concentrated aqueous solutions using neutron scattering and molecular dynamics

2014 ◽  
Vol 112 (9-10) ◽  
pp. 1230-1240 ◽  
Author(s):  
Eva Pluhařová ◽  
Henry E. Fischer ◽  
Philip E. Mason ◽  
Pavel Jungwirth
Keyword(s):  
Molecular Dynamics ◽  
Aqueous Solutions ◽  
Neutron Scattering ◽  
Chloride Ion ◽  
Concentrated Aqueous Solutions

X-ray and neutron scattering studies of the hydration structure of alkali ions in concentrated aqueous solutions

2006 ◽  
Vol 124 (3) ◽  
pp. 171-179 ◽  
Author(s):  
S. Ansell ◽  
A.C. Barnes ◽  
P.E. Mason ◽  
G.W. Neilson ◽  
S. Ramos
Keyword(s):  
Aqueous Solutions ◽  
Neutron Scattering ◽  
Concentrated Aqueous Solutions ◽  
X Ray ◽  
Alkali Ions ◽  
Hydration Structure

Diffusional and vibrational properties of water confined in very thin nanoporous glasses probed by light and neutron scattering

2000 ◽  
Vol 10 (PR7) ◽  
pp. Pr7-211-Pr7-214 ◽  
Author(s):  
V. Venuti ◽  
V. Crupi ◽  
S. Magazù ◽  
D. Majolino ◽  
P. Migliardo ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Vibrational Properties ◽  
Light And Neutron Scattering

Viscosity, electrical conductivity and density of the system ammonium nitrate-dimethyl sulphoxide

1984 ◽  
Vol 49 (5) ◽  
pp. 1109-1115
Author(s):  
Jindřich Novák ◽  
Zdeněk Kodejš ◽  
Ivo Sláma
Keyword(s):  
Electrical Conductivity ◽  
Aqueous Solutions ◽  
Ammonium Nitrate ◽  
Transport Properties ◽  
Calcium Nitrate ◽  
Dimethyl Sulphoxide ◽  
Present System ◽  
Empirical Equations ◽  
Concentrated Solutions ◽  
Nitrate Solutions

The density, viscosity, and electrical conductivity of highly concentrated solutions of ammonium nitrate in dimethyl sulphoxide have been determined over the temperature range 10-60 °C and the concentration range 7-50 mol% of the salt. The variations in the quantities as a function of temperature and concentration have been correlated by empirical equations. A comparison is made between the transport properties for the present system, aqueous solutions of ammonium nitrate, and calcium nitrate solutions in dimethyl sulphoxide.

Sign in / Sign up

Export Citation Format

Share Document