Superhydrophobic and slippery liquid-infused porous surfaces formed by the self-assembly of a hybrid ABC triblock copolymer and their antifouling performance

2018 ◽  
Vol 6 (3) ◽  
pp. 440-448 ◽  
Author(s):  
Xin Zhou ◽  
Yeong-Yuh Lee ◽  
Karen Siew Ling Chong ◽  
Chaobin He
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
The Self ◽  
Bottom Up ◽  
Porous Coatings ◽  
Porous Surfaces ◽  
Abc Triblock Copolymer

Superhydrophobic and slippery liquid-infused porous coatings were fabricated from a hybrid ABC triblock copolymer using a stepwise “bottom-up” strategy.

Bottom-up Evolution from Disks to High-Genus Polymersomes

2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Amphiphilic Copolymers ◽  
Chain Entanglement ◽  
Bottom Up ◽  
New Approach ◽  
High Genus ◽  
Transmission Electron ◽  
Minimal Radius ◽  
Stop Flow

<div><div><div><p>We report the design of polymersomes using a bottom-up approach where the self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)–poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We study this process in detail using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), and stop-flow ab- sorbance disclosing the molecular and supramolecular anatomy of each structure observed. We report a clear evolution from disk micelles to vesicle to high-genus vesicles where each passage is controlled by pH switch or temperature. We show that the process can be rationalised adapting membrane physics theories disclosing important scaling principles that allow the estimation of the vesiculation minimal radius as well as chain entanglement and coupling. This allows us to propose a new approach to generate nanoscale vesicles with genus from 0 to 70 which have been very elusive and difficult to control so far.</p></div></div></div>

Bottom-up Evolution from Disks to High-Genus Polymersomes

2018 ◽  
Author(s):  
Claudia Contini ◽  
Russell Pearson ◽  
Linge Wang ◽  
Lea Messager ◽  
Jens Gaitzsch ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Amphiphilic Copolymers ◽  
Chain Entanglement ◽  
Bottom Up ◽  
New Approach ◽  
High Genus ◽  
Transmission Electron ◽  
Minimal Radius ◽  
Stop Flow

<div><div><div><p>We report the design of polymersomes using a bottom-up approach where the self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)–poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We study this process in detail using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, dynamic light scattering (DLS), and stop-flow ab- sorbance disclosing the molecular and supramolecular anatomy of each structure observed. We report a clear evolution from disk micelles to vesicle to high-genus vesicles where each passage is controlled by pH switch or temperature. We show that the process can be rationalised adapting membrane physics theories disclosing important scaling principles that allow the estimation of the vesiculation minimal radius as well as chain entanglement and coupling. This allows us to propose a new approach to generate nanoscale vesicles with genus from 0 to 70 which have been very elusive and difficult to control so far.</p></div></div></div>

Micro-scale hollow nanosphere as highly efficient ORR electrocatalyst derived from the self-assembly of triblock copolymer (L64)

Ionics ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 1611-1618
Author(s):  
Xiaowen Ge ◽  
Xiaomei Du ◽  
Yin Sun ◽  
Junjie Zhang ◽  
Zhongyu Qiu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
The Self ◽  
Hollow Nanosphere ◽  
Micro Scale ◽  
Highly Efficient

Azobenzene-functionalized graphene nanoribbons: bottom-up synthesis, photoisomerization behaviour and self-assembled structures

2020 ◽  
Vol 8 (31) ◽  
pp. 10837-10843
Author(s):  
Zhichun Shangguan ◽  
Chunyang Yu ◽  
Chen Li ◽  
Xianhui Huang ◽  
Yiyong Mai ◽  
...  
Keyword(s):  
Self Assembly ◽  
Graphene Nanoribbons ◽  
The Self ◽  
Functionalized Graphene ◽  
Bottom Up ◽  
Self Assembled ◽  
Azobenzene Groups

We show the strategy of introducing azobenzene groups into graphene nanoribbons (GNRs), which not only endows GNRs with fast photo-responsiveness but also induces the self-assembly of the GNRs into ultra-long nanowires.

Block Copolymer Films Hierarchical Assembly in Confinement

2007 ◽  
Vol 364-366 ◽  
pp. 437-441
Author(s):  
Yong Zhi Cao ◽  
Shen Dong ◽  
Ying Chun Liang ◽  
Tao Sun ◽  
Yong Da Yan
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Structural Control ◽  
Computer Control ◽  
The Self ◽  
Top Down ◽  
Bottom Up ◽  
Dimensional Precision ◽  
Periodic Arrays ◽  
Copolymer Films

Ultrathin block copolymer films are promising candidates for bottom-up nanotemplates in hybrid organic-inorganic electronic, optical, and magnetic devices. Key to many future applications is the long range ordering and precise placement of the phase-separated nanoscale domains. In this paper, a combined top-down/bottom-up hierarchical approach is presented on how to fabricate massive arrays of aligned nanoscale domains by means of the self-assembly of asymmetric poly (styrene-block-ethylene/butylenes-block-styrene) (SEBS) tirblock copolymers in confinement. The periodic arrays of the poly domains were orientated via the introduction of AFM micromachining technique as a tool for locally controlling the self-assembly process of triblock copolymers by the topography of the silicon nitride substrate. Using the controlled movement of 2- dimensional precision stage and the micro pressure force between the tip and the surface by computer control system, an artificial topographic pattern on the substrate can be fabricated precisely. Coupled with solvent annealing technique to direct the assembly of block copolymer, this method provides new routes for fabricating ordered nanostructure. This graphoepitaxial methodology can be exploited in hybrid hard/soft condensed matter systems for a variety of applications. Moreover, Pairing top-down and bottom-up techniques is a promising, and perhaps necessary, bridge between the parallel self-assembly of molecules and the structural control of current technology.

scholarly journals Towards supramolecular nanostructured materials: control of the self-assembly of ionic bent-core amphiphiles

2020 ◽  
Vol 8 (6) ◽  
pp. 1998-2007 ◽  
Author(s):  
Martín Castillo-Vallés ◽  
Miguel Cano ◽  
Ana Bermejo-Sanz ◽  
Nélida Gimeno ◽  
M. Blanca Ros
Keyword(s):  
Nanostructured Materials ◽  
Self Assembly ◽  
Molecular Design ◽  
The Self ◽  
Bottom Up

Bottom-up self-assembly: the formation of mesophases and nanostructures in solution from ionic bent-core dendrimers has been systematically studied by molecular design.

Self-Assembly of a Lamellar ABC Triblock Copolymer Thin Film

2002 ◽  
Vol 35 (11) ◽  
pp. 4406-4413 ◽  
Author(s):  
Kenji Fukunaga ◽  
Takeji Hashimoto ◽  
Hubert Elbs ◽  
Georg Krausch
Keyword(s):  
Thin Film ◽  
Self Assembly ◽  
Triblock Copolymer ◽  
Abc Triblock Copolymer
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