scholarly journals Solid-phase behavior of several long-chain n-paraffins, esters, and a ketone

1974 ◽  
Vol 78A (2) ◽  
pp. 129 ◽  
Author(s):  
Peter K. Sullivan
Keyword(s):  
Phase Behavior ◽  
Solid Phase ◽  
Long Chain

Solution Phase Behavior and Solid Phase Structure of Long-Chain Sodium Soap Mixtures

Langmuir ◽  
2000 ◽  
Vol 16 (22) ◽  
pp. 8276-8284 ◽  
Author(s):  
Marc N. G. de Mul ◽  
H. Ted Davis ◽  
D. Fennell Evans ◽  
Aparna V. Bhave ◽  
James R. Wagner
Keyword(s):  
Phase Behavior ◽  
Phase Structure ◽  
Solid Phase ◽  
Solution Phase ◽  
Sodium Soap ◽  
Long Chain

Phase Behavior Controlled by the Addition of Long-Chain n-Alcohols in Systems of Cationic Surfactant/Anionic Polyion Complex Salts and Water

2018 ◽  
Vol 122 (18) ◽  
pp. 4861-4869 ◽  
Author(s):  
Ana M. Percebom ◽  
Guilherme A. Ferreira ◽  
Daniel Rege Catini ◽  
Juliana S. Bernardes ◽  
Watson Loh
Keyword(s):  
Phase Behavior ◽  
Cationic Surfactant ◽  
Polyion Complex ◽  
Complex Salts ◽  
Long Chain

Liquid-solid phase-change absorption of SO2 with tertiary diamines in long-chain alkane

2019 ◽  
Vol 229 ◽  
pp. 115814 ◽  
Author(s):  
Wenbo Zhao ◽  
Ling Chen ◽  
Qian Zhao ◽  
Yuan Chen ◽  
Zhiyong Zeng
Keyword(s):  
Phase Change ◽  
Solid Phase ◽  
Long Chain

scholarly journals Unveiling the Uniqueness of Crystal Structure and Crystalline Phase Behavior of Anhydrous Octyl β-D-Glucoside Using Aligned Assembly on a Surface

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 671 ◽  
Author(s):  
Shigesaburo Ogawa ◽  
Isao Takahashi
Keyword(s):  
Crystal Structure ◽  
Phase Behavior ◽  
Crystalline Phase ◽  
Intermediate Phase ◽  
Solid Phase ◽  
Grazing Incidence ◽  
Single Component ◽  
Pure Substance ◽  
Crystalline Films ◽  
Ripple Phase

Although the anomalous low crystallinity of octyl β-D-glucoside (β-OGlu) was first proposed more than 30 years ago, many fundamental aspects of its crystal structure and of the crystalline phase behavior of the pure substance have remained uncertain. In this paper, we employ grazing-incidence wide-angle X-ray-diffraction measurements using a two-dimensional detector (2D-GI-WAXD) and perpendicularly aligned crystalline films to demonstrate that β-OGlu forms crystal structures consisting of an intermediate phase—like a ripple phase with two large crystal-lattice constants, a and c, comparable to the lengths of its bilayer structures. Furthermore, solid-to-solid phase transitions accompanied by latent heat confirm the existence of a solid-solution-like phase consisting of a crystalline and a liquid-crystal (LC) phase, which persists over a 20 °C temperature range, in a single-component system. In addition, the system forms a superlattice, accompanied by a change in packing of the component sugars in the partial-melting state; this shift is different from the gel-crystal transition observed for a typical lipid system. These facts indicate that even in the crystalline phase formed from a single component, each individual β-OGlu molecule in a single-component phase plays a versatile role in the crystallisation and melting processes. These findings must somewhat explain the specific co-assembling features with proteins of β-OGlu, which has long been used empirically in biochemistry.

ChemInform Abstract: A DEUTERON NMR STUDY OF THE SOLID-PHASE BEHAVIOR OF NONADECANE

1983 ◽  
Vol 14 (31) ◽  
Author(s):  
M. G. TAYLOR ◽  
E. C. KELUSKY ◽  
I. C. P. SMITH ◽  
H. L. CASAL ◽  
D. G. CAMERON
Keyword(s):  
Phase Behavior ◽  
Solid Phase ◽  
Nmr Study ◽  
Deuteron Nmr

scholarly journals IR spectroscopic study of the structure and phase behavior of long-chain diacylphosphatidylcholines in the gel state

1996 ◽  
Vol 71 (6) ◽  
pp. 3186-3198 ◽  
Author(s):  
R.G. Snyder ◽  
G.L. Liang ◽  
H.L. Strauss ◽  
R. Mendelsohn
Keyword(s):  
Spectroscopic Study ◽  
Phase Behavior ◽  
Ir Spectroscopic ◽  
Long Chain

Mechanism of Alcohol Displacement of Oil from Porous Media

1961 ◽  
Vol 1 (03) ◽  
pp. 195-212 ◽  
Author(s):  
J.J. Taber ◽  
I.S.K. Kamath ◽  
Ronald L. Reed
Keyword(s):  
Phase Behavior ◽  
Calcium Chloride ◽  
Solid Phase ◽  
Equilibrium Phase ◽  
Water System ◽  
Commercial Application ◽  
Practical Result ◽  
Immiscible Mixture ◽  
Two Phases ◽  
Tie Line

Abstract Alcohol floods of consolidated sandstone cores have shown the process to be strongly dependent on the phase behavior of the particular alcohol-oil-water system used. This means that in many cases the mechanism does not conform to the idea of a piston-like displacement. Instead, it is found that by changing the alcohol it is possible to change the relative velocities of the oil and water and, in fact, the entire mechanism of the process. The effects of rate, viscosity, initial saturation, distance travelled and hysteresis of relative permeability on the alcohol flooding mechanism are discussed. Introduction Reasons for interest in the use of alcohol to miscibly displace oil and water from a porous medium appear in the existing literature. The mechanism of the displacement has been considered and the apparent implications formulated into a theory which presumably would enable one to predict the essential features of the process. Unfortunately, most of the reported experiments have been performed with unconsolidated or artificially consolidated sands. With these systems some of the noteworthy facets of the process are obscured and resulting data appear uncertain. It is the purpose of this paper to show how the use of consolidated sandstones has led to revision of the mechanism and, hence, the theory of alcohol flooding. The practical result is increased pessimism toward the possibilities of commercial application of the simplest form of the alcohol-slug process. However elucidation of the mechanism has made it possible to define the essential characteristics of a system of slugs which will behave in a nearly piston-like fashion and, thus, yield the best possible result. Equilibrium Phase Behavior Fig. 1 is a diagram of the ternary system isopropyl alcohol (IPA)-Soltrol-calcium chloride brine. Brine was used to prevent plugging of the core and calcium chloride was used because sodium chloride brine exhibits a solid phase with Soltrol and IPA. If alcohol is added in increments to the immiscible mixture of water and oil represented by Point A, the path followed by the successively equilibrated samples will be on the Line ABC and pass from the immiscible region to the miscible region by crossing the binodal curve at B. Consider the intersection D of this path with the tie Line EF. The quantity of oleic phase is proportional to the Segment ED and the quantity of the aqueous phase is proportional to DF. Compositions of the two phases are specified by Points E and F. It is clear that in the case shown the oleic phase is diminishing and entirely disappears when miscibility is achieved.

Studies of the temperature‐dependent phase behavior of long chain n‐alkyl thiol monolayers on gold

1990 ◽  
Vol 93 (1) ◽  
pp. 767-773 ◽  
Author(s):  
Ralph G. Nuzzo ◽  
Eileen M. Korenic ◽  
Lawrence H. Dubois
Keyword(s):  
Phase Behavior ◽  
Temperature Dependent ◽  
Thiol Monolayers ◽  
Long Chain

scholarly journals Anomalous phase behavior of long chain saturated lecithin bilayers

1996 ◽  
Vol 1279 (1) ◽  
pp. 17-24 ◽  
Author(s):  
W.-J. Sun ◽  
S. Tristram-Nagle ◽  
R.M. Suter ◽  
J.F. Nagle
Keyword(s):  
Phase Behavior ◽  
Long Chain
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