Phase behavior of graft copolymers in concentrated solution

Soft Matter ◽  
2011 ◽  
Vol 7 (1) ◽  
pp. 137-146 ◽  
Author(s):  
Ying Zhuang ◽  
Liquan Wang ◽  
Jiaping Lin ◽  
Liangshun Zhang
Keyword(s):  
Phase Behavior ◽  
Graft Copolymers ◽  
Concentrated Solution

Effect of molecular architecture on the phase behavior of fluoroether-functional graft copolymers in supercritical CO2

1997 ◽  
Vol 134 (1-2) ◽  
pp. 285-305 ◽  
Author(s):  
Carole Lepilleur ◽  
Eric J. Beckman ◽  
Hans Schonemann ◽  
Val J. Krukonis
Keyword(s):  
Phase Behavior ◽  
Supercritical Co2 ◽  
Graft Copolymers ◽  
Molecular Architecture

Effect of Molecular Architecture on Phase Behavior of Graft Copolymers

2008 ◽  
Vol 112 (32) ◽  
pp. 9720-9728 ◽  
Author(s):  
Liangshun Zhang ◽  
Jiaping Lin ◽  
Shaoliang Lin
Keyword(s):  
Phase Behavior ◽  
Graft Copolymers ◽  
Molecular Architecture

Phase behavior of poly(dimethylsiloxane)–poly(ethylene oxide) amphiphilic block and graft copolymers in compressed carbon dioxide

2012 ◽  
Vol 62 ◽  
pp. 211-218 ◽  
Author(s):  
Ivan Stoychev ◽  
Felix Peters ◽  
Matthias Kleiner ◽  
Sébastien Clerc ◽  
François Ganachaud ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ethylene Oxide ◽  
Phase Behavior ◽  
Graft Copolymers ◽  
Poly Ethylene Oxide ◽  
Compressed Carbon Dioxide ◽  
Poly Ethylene

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

Solution Properties and Phase Behavior of Ammonium Hexylene Octyl Succinate in Water and Water-Oil System

1970 ◽  
Vol 3 (1) ◽  
Author(s):  
Md. Hamidul Kabir ◽  
Ravshan Makhkamov ◽  
Shaila Kabir
Keyword(s):  
Critical Micelle Concentration ◽  
Phase Behavior ◽  
Liquid Crystalline ◽  
Carbon Number ◽  
Phase Region ◽  
Solution Properties ◽  
Middle Phase ◽  
Two Phase ◽  
Lamellar Liquid Crystal ◽  
Drug Ingredient

The solution properties and phase behavior of ammonium hexylene octyl succinate (HOS) was investigated in water and water-oil system. The critical micelle concentration (CMC) of HOS is lower than that of anionic surfactants having same carbon number in the lipophilic part. The phase diagrams of a water/ HOS system and water/ HOS/ C10EO8/ dodecane system were also constructed. Above critical micelle concentration, the surfactant forms a normal micellar solution (Wm) at a low surfactant concentration whereas a lamellar liquid crystalline phase (La) dominates over a wide region through the formation of a two-phase region (La+W) in the binary system. The lamellar phase is arranged in the form of a biocompatible vesicle which is very significant for the drug delivery system. The surfactant tends to be hydrophilic when it is mixed with C10EO8 and a middle-phase microemulsion (D) is appeared in the water-surfactant-dodecane system where both the water and oil soluble drug ingredient can be incorporated in the form of a dispersion. Hence, mixing can tune the hydrophile-lipophile properties of the surfactant. Key words: Ammonium hexylene octyl succinate, mixed surfactant, lamellar liquid crystal, middle-phase microemulsion. Dhaka Univ. J. Pharm. Sci. Vol.3(1-2) 2004 The full text is of this article is available at the Dhaka Univ. J. Pharm. Sci. website

General Trend of Negative Transference Number in Li Salt/Ionic Liquid Mixtures

2019 ◽  
Author(s):  
Nicola Molinari ◽  
Jonathan P. Mailoa ◽  
Boris Kozinsky
Keyword(s):  
Ionic Liquid ◽  
Transference Number ◽  
Liquid Mixtures ◽  
Single Linkage ◽  
Self Diffusion ◽  
Wide Range ◽  
Single Linkage Cluster ◽  
Concentrated Solution ◽  
The One ◽  
Dynamics Simulations

We show that strong cation-anion interactions in a wide range of lithium-salt/ionic liquid mixtures result in a negative lithium transference number, using molecular dynamics simulations and rigorous concentrated solution theory. This behavior fundamentally deviates from the one obtained using self-diffusion coefficient analysis and agrees well with experimental electrophoretic NMR measurements, which accounts for ion correlations. We extend these findings to several ionic liquid compositions. We investigate the degree of spatial ionic coordination employing single-linkage cluster analysis, unveiling asymmetrical anion-cation clusters. Additionally, we formulate a way to compute the effective lithium charge that corresponds to and agrees well with electrophoretic measurements and show that lithium effectively carries a negative charge in a remarkably wide range of chemistries and concentrations. The generality of our observation has significant implications for the energy storage community, emphasizing the need to reconsider the potential of these systems as next generation battery electrolytes.<br>

PHASE BEHAVIOR OF WATER FROM NATURAL GAS

2018 ◽  
Vol 17 (12) ◽  
pp. 2889-2894 ◽  
Author(s):  
Cristian Eparu ◽  
Sorin Neacsu ◽  
Alina Prundurel
Keyword(s):  
Natural Gas ◽  
Phase Behavior
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