Complex morphologies of self-assembled block copolymer micelles in binary solvent mixtures: the role of solvent–solvent correlations

Soft Matter ◽  
2011 ◽  
Vol 7 (14) ◽  
pp. 6622 ◽  
Author(s):  
A. G. Denkova ◽  
P. H. H. Bomans ◽  
M.-O. Coppens ◽  
N. A. J. M. Sommerdijk ◽  
E. Mendes
Keyword(s):  
Block Copolymer ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Binary Solvent Mixtures ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Self Assembled ◽  
Role Of Solvent ◽  
Solvent Solvent

Role of solvent polarity on fluorescence quenching of 3MOCE in binary solvent mixtures

2020 ◽  
Author(s):  
S. Vaijayanthimala ◽  
Kalpana Sharma ◽  
Raveendra Melavanki ◽  
P. Bhavya ◽  
U. Meghana ◽  
...  
Keyword(s):  
Fluorescence Quenching ◽  
Solvent Polarity ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Binary Solvent Mixtures ◽  
Role Of Solvent

The electrospinning behavior of poly(vinyl alcohol) in DMSO–water binary solvent mixtures

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 102947-102955 ◽  
Author(s):  
Deepika Gupta ◽  
Manjeet Jassal ◽  
Ashwini K. Agrawal
Keyword(s):  
Ternary System ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Binary Solvent Mixtures ◽  
Polymer Interactions ◽  
Solvent Solvent

The fiber diameters obtained from PVA–DMSO–water ternary system are the result of the interplay between the solvent–solvent and solvent–polymer interactions.

scholarly journals Close-packed block copolymer micelles induced by temperature quenching

2018 ◽  
Vol 115 (28) ◽  
pp. 7218-7223 ◽  
Author(s):  
Liwen Chen ◽  
Han Seung Lee ◽  
Sangwoo Lee
Keyword(s):  
Block Copolymer ◽  
Spherical Particles ◽  
Face Centered Cubic ◽  
Time Resolved ◽  
Hexagonal Close Packed ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Crystal Grains ◽  
Self Assembled ◽  
Face Centered

Close-packed structures of uniformly sized spheres are ubiquitous across diverse material systems including elements, micelles, and colloidal assemblies. However, the controlled access to a specific symmetry of self-assembled close-packed spherical particles has not been well established. We investigated the ordering of spherical block copolymer micelles in aqueous solutions that was induced by rapid temperature changes referred to as quenching. As a function of quench depth, the quenched self-assembled block copolymer micelles formed three different close-packed structures: face-centered cubic (fcc), random stacking of hexagonal-close-packed layers (rhcp), and hexagonal-close-packed (hcp). The induced hcp and rhcp structures were stable for at least a few weeks when maintained at their quench temperatures, but heating or cooling these hcp and rhcp structures transformed both structures to fcc crystallites with coarsening of the crystal grains, which suggests that these noncubic close-packed structures are intermediate states. Time-resolved scattering experiments prove that the micellar rhcp structures do not originate from the rapid growth of competing close-packed structures. We speculate that the long-lived metastable hcp and rhcp structures originate from the small size of crystal grains, which introduces a nonnegligible Laplace pressure to the crystal domains. The reported transitions from the less stable hcp to the more stable rhcp and fcc are experimental observations of Ostwald’s rule manifesting the transition order of the key close-packed structures in the crystallization of close-packed uniform spheres.

Extremely Bright Full Color Alternating Current Electroluminescence of Solution-Blended Fluorescent Polymers with Self-Assembled Block Copolymer Micelles

ACS Nano ◽  
2013 ◽  
Vol 7 (12) ◽  
pp. 10809-10817 ◽  
Author(s):  
Sung Hwan Cho ◽  
Seong Soon Jo ◽  
Ihn Hwang ◽  
Jinwoo Sung ◽  
Jungmok Seo ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Alternating Current ◽  
Full Color ◽  
Fluorescent Polymers ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Self Assembled

Partitioning of Pyrene between “Crew Cut” Block Copolymer Micelles and H2O/DMF Solvent Mixtures

1997 ◽  
Vol 30 (23) ◽  
pp. 7143-7150 ◽  
Author(s):  
Jianxi Zhao ◽  
Christine Allen ◽  
Adi Eisenberg
Keyword(s):  
Block Copolymer ◽  
Solvent Mixtures ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles
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