scholarly journals Strength of polymer phase boundaries with large interfacial width: Effects of interfacial profile and phase separation morphology

2010 ◽  
Vol 48 (16) ◽  
pp. 1834-1846 ◽  
Author(s):  
Chun-Jie Chang ◽  
Yi-Huan Lee ◽  
Chi-Ju Chiang ◽  
Yu-Ping Lee ◽  
Hao-Ching Chien ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Phase ◽  
Phase Boundaries

Polymer Phase Separation

2005 ◽  
pp. 125-137
Author(s):  
Peter Ma ◽  
Victor Chen
Keyword(s):  
Phase Separation ◽  
Polymer Phase

Controlling Polymersome Surface Topology at the Nanoscale by Membrane Confined Polymer/Polymer Phase Separation

ACS Nano ◽  
2011 ◽  
Vol 5 (3) ◽  
pp. 1775-1784 ◽  
Author(s):  
Caterina LoPresti ◽  
Marzia Massignani ◽  
Christine Fernyhough ◽  
Adam Blanazs ◽  
Anthony J. Ryan ◽  
...  
Keyword(s):  
Phase Separation ◽  
Surface Topology ◽  
Polymer Phase ◽  
Confined Polymer

Polymer Phase Separation

2012 ◽  
pp. 167-185
Author(s):  
Wenbing Hu
Keyword(s):  
Phase Separation ◽  
Polymer Phase

scholarly journals Evaluation of nonradiative energy transfer as a means of probing polymer miscibility and polymer phase separation

1990 ◽  
Vol 23 (4) ◽  
pp. 1202-1207 ◽  
Author(s):  
M. Henrioulle-Granville ◽  
K. Kyuda ◽  
R. Jerome ◽  
P. Teyssie ◽  
F. C. De Schryver
Keyword(s):  
Energy Transfer ◽  
Phase Separation ◽  
Nonradiative Energy Transfer ◽  
Polymer Phase ◽  
Polymer Miscibility

scholarly journals Phase field study on the effect of shear flow on polymer phase separation

2012 ◽  
Vol 27 ◽  
pp. 1502-1507 ◽  
Author(s):  
Yuechan Li ◽  
Rongpei Shi ◽  
Cuiping Wang ◽  
Xingjun Liu ◽  
Yunzhi Wang
Keyword(s):  
Phase Separation ◽  
Shear Flow ◽  
Field Study ◽  
Phase Field ◽  
Polymer Phase

scholarly journals Stochastic dynamics of single molecules across phase boundaries

2021 ◽  
Author(s):  
Stefano Bo ◽  
Lars Hubatsch ◽  
Jonathan Bauermann ◽  
Christoph A. Weber ◽  
Frank Julicher
Keyword(s):  
Phase Separation ◽  
Phase Boundary ◽  
Single Molecule ◽  
Concentration Gradient ◽  
Detailed Balance ◽  
Single Molecules ◽  
Thermal Fluctuations ◽  
Phase Boundaries ◽  
Single Molecule Dynamics ◽  
Molecule Dynamics

We discuss the stochastic trajectories of single molecules in a phase-separated liquid, when a dense and a dilute phase coexist. Starting from a continuum theory of macroscopic phase separation we derive a stochastic Langevin equation for molecular trajectories that takes into account thermal fluctuations. We find that molecular trajectories can be described as diffusion with drift in an effective potential, which has a steep gradient at phase boundaries. We discuss how the physics of phase coexistence affects the statistics of molecular trajectories and in particular the statistics of displacements of molecules crossing a phase boundary. At thermodynamic equilibrium detailed balance imposes that the distributions of displacements crossing the phase boundary from the dense or from the dilute phase are the same. Our theory can be used to infer key phase separation parameters from the statistics of single-molecule trajectories. For simple Brownian motion, there is no drift in the presence of a concentration gradient. We show that interactions in the fluid give rise to an average drift velocity in concentration gradients. Interestingly, under non-equilibrium conditions, single molecules tend to drift uphill the concentration gradient. Thus, our work bridges between single-molecule dynamics and collective dynamics at macroscopic scales and provides a framework to study single-molecule dynamics in phase-separating systems.

A Polymer Thin-Film Technique to Study Phase Separation

1985 ◽  
Vol 43 ◽  
pp. 82-83
Author(s):  
O.L. Shaffer ◽  
V. Dimonie ◽  
M.S. El-Aasser ◽  
J.W. Vanderhoff
Keyword(s):  
Thin Film ◽  
Phase Separation ◽  
Standard Sample ◽  
Solid Polymer ◽  
Study Phase ◽  
Polymer Phase ◽  
Polymer Thin Film ◽  
Polymer Systems ◽  
Excellent Method ◽  
Thin Film Technique

There is a great deal of interest in the morphology of polymers. Polymer systems such as physical blends, copolymers and latexes of the core-shell type have become increasingly important in “designing properties”. of the final polymer. Phase separation examination is an excellent method of studying the morphology in these polymer systems.Normally phase separation in polymers has been studied by TEM. The standard sample preparation is to embed the solid polymer in epoxy and then microtome. Microtoming can create artifacts such as distortion due to the knife, cutting difficulty with a rubber phase and possible polymer-epoxy interaction. Because of the above mentioned problems a thin film technique has been developed to circumvent the microtoming procedure. A ruthenium tetrox-ide (RUO4) stain was also used to increase contrast.

Sign in / Sign up

Export Citation Format

Share Document