Self-Assembly of Asymmetric Poly(ethylene oxide)-block-Poly(n-butyl acrylate) Diblock Copolymers in Aqueous Media to Unexpected Morphologies

2009 ◽  
Vol 113 (13) ◽  
pp. 4218-4225 ◽  
Author(s):  
Petar D. Petrov ◽  
Markus Drechsler ◽  
Axel H. E. Müller
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Butyl Acrylate ◽  
Diblock Copolymers ◽  
Aqueous Media ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Large and Giant Unilamellar Vesicle(s) Obtained by Self-Assembly of Poly(dimethylsiloxane)-b-poly(ethylene oxide) Diblock Copolymers, Membrane Properties and Preliminary Investigation of Their Ability to Form Hybrid Polymer/Lipid Vesicles

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2013 ◽  
Author(s):  
Martin Fauquignon ◽  
Emmanuel Ibarboure ◽  
Stéphane Carlotti ◽  
Annie Brûlet ◽  
Marc Schmutz ◽  
...  
Keyword(s):  
Light Scattering ◽  
Ethylene Oxide ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Lipid Vesicles ◽  
Membrane Properties ◽  
Membrane Thickness ◽  
Hybrid Polymer ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

In the emerging field of hybrid polymer/lipid vesicles, relatively few copolymers have been evaluated regarding their ability to form these structures and the resulting membrane properties have been scarcely studied. Here, we present the synthesis and self-assembly in solution of poly(dimethylsiloxane)-block-poly(ethylene oxide) diblock copolymers (PDMS-b-PEO). A library of different PDMS-b-PEO diblock copolymers was synthesized using ring-opening polymerization of hexamethylcyclotrisiloxane (D3) and further coupling with PEO chains via click chemistry. Self-assembly of the copolymers in water was studied using Dynamic Light Scattering (DLS), Static Light Scattering (SLS), Small Angle Neutron Scattering (SANS), and Cryo-Transmission Electron Microscopy (Cryo-TEM). Giant polymersomes obtained by electroformation present high toughness compared to those obtained from triblock copolymer in previous studies, for similar membrane thickness. Interestingly, these copolymers can be associated to phospholipids to form Giant Hybrid Unilamellar Vesicles (GHUV); preliminary investigations of their mechanical properties show that tough hybrid vesicles can be obtained.

Mesoscopic simulation of the self-assembly of the weak polyelectrolyte poly(ethylene oxide)-block-poly(methyl methacrylate) diblock copolymers

Soft Matter ◽  
2015 ◽  
Vol 11 (22) ◽  
pp. 4366-4374 ◽  
Author(s):  
Dan Mu ◽  
Jian-Quan Li ◽  
Sheng-Yu Feng
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
The Self ◽  
The Other ◽  
Mesoscopic Simulation ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
The Right ◽  
Weak Polyelectrolytes

We designed twelve types of weak polyelectrolytes (i.e., PEO-b-PMMA copolymers (BCP) in multi-arm structures, where six include EO blocks as joint points and the other six have MMA blocks as joint points). Of these, six are displayed; structures with EO blocks as joint points on the left, and those with MMA blocks as joint points on the right.

Photodegradation Activity of Poly(ethylene oxide-b-ε-caprolactone)-Templated Mesoporous TiO2 Coated with Au and Pt

2020 ◽  
Vol 20 (8) ◽  
pp. 5276-5281 ◽  
Author(s):  
Wei-Cheng Chu ◽  
Jeonghun Kim ◽  
Minjun Kim ◽  
Abdulmohsen Ali Alshehri ◽  
Yousef Gamaan Alghamidi ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Charge Carriers ◽  
Nanocomposite Films ◽  
Soft Template ◽  
X Ray Scattering ◽  
Evaporation Induced Self Assembly ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Mesoporous TiO2 films are synthesized through evaporation-induced self-assembly using poly(ethylene oxide-b-ε-caprolactone) diblock copolymers as a soft-template. Using small-angle X-ray scattering and scanning electron microscopy, we investigate the effect of the TiO2/PEO-b-PCL ratio on the resulting nanoarchitectonic structure. After sputter-coating Au and Pt layers, these Au/TiO2 and Pt/TiO2 nanocomposite films display drastically enhanced photodegradation of rhodamine 6G under ultraviolet irradiation, due to the metal films inhibiting the rapid recombination of photogenerated charge carriers.

Block Copolymer Nanosystems Encapsulating Magnetic Nanoparticles and Drug

2020 ◽  
Vol 20 (7) ◽  
pp. 3981-3988 ◽  
Author(s):  
E. Vlassi ◽  
A. Papagiannopoulos ◽  
A. Sergides ◽  
S. Pispas
Keyword(s):  
Magnetic Nanoparticles ◽  
Ethylene Oxide ◽  
Diblock Copolymers ◽  
Serum Proteins ◽  
Aqueous Media ◽  
Self Assembling ◽  
Bio Imaging ◽  
Poly Ethylene Oxide ◽  
Amphiphilic Diblock Copolymers ◽  
Poly Ethylene

The goal of this study was to investigate the solution behavior of nanosystems composed of self-assembling amphiphilic diblock copolymers, poly(ethylene oxide-b-phenyl oxazoline) and poly(isoprene-b-ethylene oxide) (PEO-b-PPhOx and PI-b-PEO), with encapsulated iron oxide nanoparticles (γ-Fe2O3). The hybrid nanosystems were tested in aqueous solution, under physiological conditions and in mixtures with serum proteins. Light scattering methods were used to probe changes in size and mass of the formed aggregates in different solution conditions and as a function of storage time. The developed stable hybrid systems with encapsulated magnetic nanoparticles were able to entrap the anti-inflammatory drug, indomethacin. This work demonstrates versatile nanosystems with metal oxide characteristics for bio-imaging and the potential for drug delivery in aqueous media.

Photoluminescent polymeric micelles from poly(ethylene oxide)-block-poly(((4-vinylphenyl)ethene-1,1,2-triyl)tribenzene) diblock copolymers

2018 ◽  
Vol 42 (9) ◽  
pp. 7283-7292 ◽  
Author(s):  
Muhammad Adeel ◽  
Sen Xu ◽  
Bingjie Zhao ◽  
Lei Li ◽  
Sixun Zheng
Keyword(s):  
Ethylene Oxide ◽  
Diblock Copolymers ◽  
Polymeric Micelles ◽  
Raft Polymerization ◽  
Aqueous Media ◽  
Self Assembling ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

We report the synthesis of poly(ethylene oxide)-block-poly(((4-vinylphenyl)ethene-1,1,2-triyl)tribenzene) diblock copolymers via RAFT polymerization. The diblock copolymers were capable of self-assembling into photoluminescent micelles in aqueous media.

scholarly journals Post-polymerization functionalization of poly(ethylene oxide)–poly(β-6-heptenolactone) diblock copolymers to tune properties and self-assembly

2017 ◽  
Vol 8 (3) ◽  
pp. 557-567 ◽  
Author(s):  
Brooke M. Raycraft ◽  
Jarret P. MacDonald ◽  
James T. McIntosh ◽  
Michael P. Shaver ◽  
Elizabeth R. Gillies
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Fluorescent Dyes ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

Copolymers were synthesized and functionalized with a variety of moieties to tune self-assembly and install drugs or fluorescent dyes.

Synthesis of Amphiphilic Poly(ethylene oxide-co -glycidol)-graft -polyacrylonitrile Brush Copolymers and their Self-assembly in Aqueous Media

2012 ◽  
Vol 213 (16) ◽  
pp. 1717-1724 ◽  
Author(s):  
Kunyan Sui ◽  
Hongchao Liang ◽  
Xin Zhao ◽  
Yingying Ma ◽  
Yang Zhang ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Self Assembly ◽  
Aqueous Media ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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