Phase transitions induced by electric fields in near-critical polymer solutions

1993 ◽  
Vol 71 (14) ◽  
pp. 2236-2239 ◽  
Author(s):  
Denis Wirtz ◽  
Gerald G. Fuller
Keyword(s):  
Phase Transitions ◽  
Electric Fields ◽  
Polymer Solutions

Influence of electric fields on the kinetics of phase transitions

1986 ◽  
Vol 50 (5) ◽  
pp. 500-505
Author(s):  
L. A. Babenya ◽  
A. G. Goloveiko ◽  
V. I. Novikova ◽  
B. M. Pavlov ◽  
I. A. Satikov ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Electric Fields ◽  
Kinetics Of Phase Transitions ◽  
Kinetics Of

Effect of Phase Transitions in Polymer Solutions on the Magnetic Response of Embedded Nanoparticles

2020 ◽  
Vol 2 (7) ◽  
pp. 2676-2685
Author(s):  
Samira Webers ◽  
Melissa Hess ◽  
Joachim Landers ◽  
Annette M. Schmidt ◽  
Heiko Wende
Keyword(s):  
Phase Transitions ◽  
Polymer Solutions ◽  
Magnetic Response ◽  
Embedded Nanoparticles

Phase transitions of single polymer chains and of polymer solutions: insights from Monte Carlo simulations

2008 ◽  
Vol 20 (49) ◽  
pp. 494215 ◽  
Author(s):  
K Binder ◽  
W Paul ◽  
T Strauch ◽  
F Rampf ◽  
V Ivanov ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Phase Transitions ◽  
Monte Carlo Simulations ◽  
Polymer Solutions ◽  
Polymer Chains

ORDER PARAMETERS AND PHASE TRANSITIONS IN ELECTRORHEOLOGICAL FLUIDS

1992 ◽  
Vol 06 (15n16) ◽  
pp. 2635-2649 ◽  
Author(s):  
R. TAO
Keyword(s):  
Phase Transitions ◽  
Electric Fields ◽  
Lattice Structure ◽  
Reciprocal Lattice ◽  
Order Parameters ◽  
Second Phase ◽  
Two Phase ◽  
Fixed Temperature ◽  
Dielectric Spheres ◽  
Er Fluid

The ground state of an induced electrorheological (ER) solid is a body-centered tetragonal (bct) lattice with conventional Bravais vectors [Formula: see text], [Formula: see text], and [Formula: see text] where a is the radius of dielectric spheres and [Formula: see text] is the field direction. The reciprocal lattice vectors are [Formula: see text], [Formula: see text], and [Formula: see text]. Three order parameters are defined as [Formula: see text], (j = 1, 2, 3), where N is the total number of particles. Among them, ρ3 characterizes the formation of chains in the z direction, while ρ1 and ρ2 characterize the structure in the x-y plane. Monte Carlo simulations of canonical ensemble have shown that three different phases and two phase transitions exist in the ER fluid. At a fixed temperature, there are two critical electric fields Ec2 < Ec1. When the applied electric field E < Ec2, ρj (j = 1, 2, 3) are all vanishing and the ER fluid is a liquid. When Ec2 < E < Ec1, ρ1 = ρ2 = 0, but ρ3 is not vanishing, indicating that the ER fluid begins to form chains between two electrodes, but the distribution of these chains is random. This state is similar to nematic liquid crystal. The second phase transition occurs as E exceeds Ec1. Then ρ1, ρ2, and ρ3 are all non-vanishing, indicating that the chains aggregate together to form thick columns which have the bct lattice structure. These two phase transitions can also be realized at a fixed field by lowering the temperature.

scholarly journals Mechano-responsive polymer solutions based on CO2 supersaturation: shaking-induced phase transitions and self-assembly or dissociation of polymeric nanoparticles

2014 ◽  
Vol 50 (67) ◽  
pp. 9561-9564 ◽  
Author(s):  
Peter J. Roth ◽  
Jing Yang Quek ◽  
Yicheng Zhu ◽  
Bianca M. Blunden ◽  
Andrew B. Lowe
Keyword(s):  
Phase Transitions ◽  
Self Assembly ◽  
Polymer Solutions ◽  
Polymeric Nanoparticles ◽  
Nanoparticle Formation ◽  
Soda Water ◽  
Responsive Polymer

Shaking solutions of tailored (co)polymers in soda water is shown to induce precipitation, nanoparticle formation, or polymer or nanoparticle dissolution.

Increased flow rate of polymer solutions in electric fields

1978 ◽  
Vol 65 (3) ◽  
pp. 581-582
Author(s):  
J.B McLaughlin ◽  
D Cowden ◽  
S Arajs
Keyword(s):  
Electric Fields ◽  
Flow Rate ◽  
Polymer Solutions
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