Temperature Gradients Induce Phase Separation in a Miscible Polymer Solution

1996 ◽  
Vol 77 (10) ◽  
pp. 1990-1993 ◽  
Author(s):  
Jiro Kumaki ◽  
Takeji Hashimoto ◽  
Steve Granick
Keyword(s):  
Phase Separation ◽  
Polymer Solution ◽  
Temperature Gradients ◽  
Induce Phase Separation ◽  
Induce Phase

scholarly journals Nuclear body phase separation drives telomere clustering in ALT cancer cells

2020 ◽  
Vol 31 (18) ◽  
pp. 2048-2056 ◽  
Author(s):  
Huaiying Zhang ◽  
Rongwei Zhao ◽  
Jason Tones ◽  
Michel Liu ◽  
Robert L. Dilley ◽  
...  
Keyword(s):  
Dna Repair ◽  
Phase Separation ◽  
Cancer Cells ◽  
Nuclear Body ◽  
Promyelocytic Leukemia ◽  
Nuclear Bodies ◽  
Telomere Elongation ◽  
Alternative Lengthening ◽  
Induce Phase Separation ◽  
Induce Phase

A chemical dimerization approach is developed to induce phase separation of APB nuclear bodies involved in telomere elongation in alternative lengthening of telomeres (ALT) cancer cells. It reveals that ALT telomere-associated promyelocytic leukemia nuclear body (APB) fusion leads to telomere clustering to provide templates for homology-directed telomere synthesis, an ability that is decoupled from APB function in enriching DNA repair factors.

Does dynamic vulcanization induce phase separation?

Soft Matter ◽  
2014 ◽  
Vol 10 (30) ◽  
pp. 5550-5558 ◽  
Author(s):  
Mohammad Mahdi Abolhasani ◽  
Fatemeh Zarejousheghani ◽  
Minoo Naebe ◽  
Qipeng Guo
Keyword(s):  
Phase Separation ◽  
Crosslink Density ◽  
Vinylidene Fluoride ◽  
Dynamic Vulcanization ◽  
Miscible Blends ◽  
Poly Vinylidene Fluoride ◽  
Induce Phase Separation ◽  
Induce Phase

Immiscible and miscible blends of poly(vinylidene fluoride) (PVDF) and acrylic rubber (ACM) were subjected to dynamic vulcanization to investigate the effect of crosslink density on phase separation.

Oxidized phospholipids induce phase separation in lipid vesicles

FEBS Letters ◽  
2005 ◽  
Vol 579 (21) ◽  
pp. 4577-4584 ◽  
Author(s):  
Francesco M. Megli ◽  
Luciana Russo ◽  
Karen Sabatini
Keyword(s):  
Phase Separation ◽  
Lipid Vesicles ◽  
Oxidized Phospholipids ◽  
Induce Phase Separation ◽  
Induce Phase

Solidification characteristics of polymer solution during polyvinylidene fluoride membrane preparation by nonsolvent-induced phase separation

2013 ◽  
Vol 438 ◽  
pp. 77-82 ◽  
Author(s):  
Toru Ishigami ◽  
Keisuke Nakatsuka ◽  
Yoshikage Ohmukai ◽  
Eiji Kamio ◽  
Tatsuo Maruyama ◽  
...  
Keyword(s):  
Phase Separation ◽  
Polymer Solution ◽  
Polyvinylidene Fluoride ◽  
Membrane Preparation

scholarly journals A computational study of phase separation in polymer solutions under a double quench

2021 ◽  
Author(s):  
Ehsan Hosseini
Keyword(s):  
Phase Separation ◽  
Polymer Solution ◽  
Spinodal Decomposition ◽  
Computational Study ◽  
Stable State ◽  
Thermal Quenching ◽  
Nucleation And Growth ◽  
Two Dimensions ◽  
Numerical Work ◽  
Binary Polymer

Polymer-dispersed liquid crystals (PDLCs) are a relatively new class of materials used for many applications ranging from switchable windows to projection displays. PDLSs are formed by spinodal decomposition induced by thermal quenching or polymerization. The objective of the present study is to introduce a new mechanism of phase separation in a binary polymer solution and develop a mathematical model and computer simulation to describe the phase separation during the early and intermediate stages of nucleation and growth and spinodal decomposition induced by thermal double quenching. The growth equilibrium limits of phase separation as well as phase transition are calculated by taking into consideration the Flory-Huggins theory for the free energy of mixing. A two step quench is modeled using Cahn-Hilliard theory for asymmetric binary polymer solution which is quenched from a stable state in the one-phase region to a metastable region where nucleation and growth occurs. The solution is allowed to coarsen for different time periods before a second quench was applied to a point further inside the phase diagram. The numerical results in two dimensions replicate the experimental and numerical work that has been recently done and published.

scholarly journals A computational study of phase separation in polymer solutions under a double quench

2021 ◽  
Author(s):  
Ehsan Hosseini
Keyword(s):  
Phase Separation ◽  
Polymer Solution ◽  
Spinodal Decomposition ◽  
Computational Study ◽  
Stable State ◽  
Thermal Quenching ◽  
Nucleation And Growth ◽  
Two Dimensions ◽  
Numerical Work ◽  
Binary Polymer

Polymer-dispersed liquid crystals (PDLCs) are a relatively new class of materials used for many applications ranging from switchable windows to projection displays. PDLSs are formed by spinodal decomposition induced by thermal quenching or polymerization. The objective of the present study is to introduce a new mechanism of phase separation in a binary polymer solution and develop a mathematical model and computer simulation to describe the phase separation during the early and intermediate stages of nucleation and growth and spinodal decomposition induced by thermal double quenching. The growth equilibrium limits of phase separation as well as phase transition are calculated by taking into consideration the Flory-Huggins theory for the free energy of mixing. A two step quench is modeled using Cahn-Hilliard theory for asymmetric binary polymer solution which is quenched from a stable state in the one-phase region to a metastable region where nucleation and growth occurs. The solution is allowed to coarsen for different time periods before a second quench was applied to a point further inside the phase diagram. The numerical results in two dimensions replicate the experimental and numerical work that has been recently done and published.

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