scholarly journals Synthesis, thin-film self-assembly, and pyrolysis of ruthenium-containing polyferrocenylsilane block copolymers

2018 ◽  
Vol 9 (21) ◽  
pp. 2951-2963 ◽  
Author(s):  
Huda Nasser Al-Kharusi ◽  
Lipeng Wu ◽  
George Whittell ◽  
Robert Harniman ◽  
Ian Manners
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Block Copolymers ◽  
Self Assembly ◽  
The Self ◽  
Cylindrical Domains ◽  
Catalytic Applications

The self-assembly of a ruthenium-containing polyferrocenylsilane in bulk and thin films yielded spherical or cylindrical domains in a PS matrix; pyrolysis provided a route to bimetallic Fe/Ru NPs for potential catalytic applications.

Polymeric Janus nanoparticles templated by block copolymer thin films

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44218-44221 ◽  
Author(s):  
Elio Poggi ◽  
Jean-Pierre Bourgeois ◽  
Bruno Ernould ◽  
Jean-François Gohy
Keyword(s):  
Thin Films ◽  
Surface Modification ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
The Self ◽  
Polymer Grafting ◽  
Novel Approach ◽  
Janus Nanoparticles

We report a novel approach to synthesize well-defined polymeric Janus nanoparticles by combining the self-assembly of block copolymers in thin films and surface modification by polymer grafting.

Influence of spin casting‐solvent on the self‐assembly of silicon‐containing block copolymers thin films via high‐temperature thermal treatment

2021 ◽  
Author(s):  
Tommaso J. Giammaria ◽  
Michele Laus ◽  
Riccardo Chiarcos ◽  
Christopher K. Ober ◽  
Gabriele Seguini ◽  
...  
Keyword(s):  
Thin Films ◽  
High Temperature ◽  
Block Copolymers ◽  
Thermal Treatment ◽  
Self Assembly ◽  
The Self ◽  
Spin Casting

Porous films by the self-assembly of inorganic rod-b-coil block copolymers: mechanistic insights into the vesicle-to-pore morphological evolution

Soft Matter ◽  
2016 ◽  
Vol 12 (12) ◽  
pp. 3084-3092 ◽  
Author(s):  
Silvia Suárez-Suárez ◽  
Gabino A. Carriedo ◽  
Alejandro Presa Soto
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Self Assembly ◽  
Morphological Evolution ◽  
The Self ◽  
Porous Films ◽  
Spontaneous Formation

The self-assembly in thin films of polyphosphazene block copolymers combining a rigid ([N = P(O2C12H8)], O2C12H8= 2,2′-dioxy-1,1′-biphenyl) and a flexible ([N = PMePh]) blocks, led to the spontaneous formation of porous films through a vesicle-to-pore morphological evolutions pathway.

On the Self-Assembly of Brush Block Copolymers in Thin Films

ACS Nano ◽  
2013 ◽  
Vol 7 (11) ◽  
pp. 9684-9692 ◽  
Author(s):  
Sung Woo Hong ◽  
Weiyin Gu ◽  
June Huh ◽  
Benjamin R. Sveinbjornsson ◽  
Gajin Jeong ◽  
...  
Keyword(s):  
Thin Films ◽  
Block Copolymers ◽  
Self Assembly ◽  
The Self

scholarly journals Synthesis and Self-Assembly of Conjugated Block Copolymers

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 110
Author(s):  
Lin-Lin Xiao ◽  
Xu Zhou ◽  
Kan Yue ◽  
Zi-Hao Guo
Keyword(s):  
Thin Film ◽  
Block Copolymers ◽  
Conjugated Polymers ◽  
Self Assembly ◽  
The Self ◽  
Synthetic Methods ◽  
Future Research ◽  
Structural Factors ◽  
The Past ◽  
Different Types

In the past two decades, conjugated polymers (CPs) have drawn great attention due to their excellent conductivity and charge mobility, rendering them broad applications in organic electronics. Controlling over the morphologies and nanostructures of CPs is very important to improve the performance of CP-based devices, which is still a tremendously difficult task. Conjugated block copolymers (cBCPs), composed of different CP blocks or CP coupled with coiled polymeric blocks, not only maintain the advantages of high conductivity and mobility but also demonstrate features of morphological versatility and tunability. Due to the strong π–π interaction and crystallinity of the conjugated backbones, the self-assembly behaviors of cBCPs are very complicated and largely remain to be explored. In this tutorial review, we first summarize the general synthetic methods for different types of cBCPs. Then, recent studies on the self-assembly behaviors of cBCPs are discussed, with an emphasis on the structural factors that affect the morphologies of cBCPs both in bulk and thin film states. Finally, we briefly provide our outlook on the future research of the self-assembly of cBCPs.

Mechanistic investigations of confinement effects on the self-assembly of symmetric amphiphilic copolymers in thin films

2017 ◽  
Vol 19 (33) ◽  
pp. 21938-21945 ◽  
Author(s):  
Dan Mu ◽  
Jian-Quan Li ◽  
Sheng-Yu Feng
Keyword(s):  
Molecular Structure ◽  
Thin Film ◽  
Thin Films ◽  
Self Assembly ◽  
Lamellar Structure ◽  
The Self ◽  
Amphiphilic Copolymers ◽  
Confinement Effects ◽  
Micellar Structure ◽  
Cylindrical Structure

The self-assembly of a copolymer thin film, whose molecular structure is composed of one hydrophobic branch (denoted in green) and two hydrophilic branches (denoted in red), gives (a) cylindrical structure, (b) micellar structure, and (c) lamellar structure.

scholarly journals Homochiral Supramolecular Thin Film from Self-Assembly of Achiral Triarylamine Molecules by Circularly Polarized Light

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 402
Author(s):  
Changjun Park ◽  
Jinhee Lee ◽  
Taehyoung Kim ◽  
Jaechang Lim ◽  
Jeyoung Park ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Self Assembly ◽  
Polarized Light ◽  
Building Blocks ◽  
The Self ◽  
Assembly Process ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Self Assembled

Here, we report the formation of homochiral supramolecular thin film from achiral molecules, by using circularly polarized light (CPL) only as a chiral source, on the condition that irradiation of CPL does not induce a photochemical change of the achiral molecules. Thin films of self-assembled structures consisting of chiral supramolecular fibrils was obtained from the triarylamine derivatives through evaporation of the self-assembled triarylamine solution. The homochiral supramolecular helices with the desired handedness was achieved by irradiation of circularly polarized visible light during the self-assembly process, and the chiral stability of supramolecular self-assembled product was achieved by photopolymerization of the diacetylene moieties at side chains of the building blocks, with irradiation of circularly polarized ultraviolet light. This work provides a novel methodology for the generation of homochiral supramolecular thin film from the corresponding achiral molecules.

Self-Assembly of Single Chain Janus Nanoparticles from Azobenzene-Containing Block Copolymers and Reversible Photoinduced Morphology Transition

2021 ◽  
Author(s):  
Wei Wen ◽  
Aihua Chen
Keyword(s):  
Block Copolymers ◽  
Experimental Research ◽  
Self Assembly ◽  
The Self ◽  
Single Chain ◽  
Morphology Transition ◽  
Janus Nanoparticles ◽  
Assembly Behavior

Self-assembly of amphiphilic single chain Janus nanoparticles (SCJNPs) is a novel and promising approach to fabricate assemblies with diversified morphologies. However, the experimental research of the self-assembly behavior of SCJNPs...

Coarse-grained simulation of the self-assembly of lipid vesicles concomitantly with novel block copolymers with multiple tails

Soft Matter ◽  
2021 ◽  
Author(s):  
Alexander Kantardjiev
Keyword(s):  
Molecular Dynamics ◽  
Block Copolymers ◽  
Self Assembly ◽  
Lipid Vesicles ◽  
The Self ◽  
Coarse Grained ◽  
Copolymer Concentration ◽  
Copolymer Structure ◽  
Coarse Grained Molecular Dynamics

We carried out a series of coarse-grained molecular dynamics liposome-copolymer simulations with varying extent of copolymer concentration in an attempt to understand the effect of copolymer structure and concentration on vesicle self-assembly and stability.

scholarly journals Precise Synthesis and Thin Film Self-Assembly of PLLA-b-PS Bottlebrush Block Copolymers

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1412
Author(s):  
Eunkyung Ji ◽  
Cian Cummins ◽  
Guillaume Fleury
Keyword(s):  
Thin Film ◽  
Block Copolymers ◽  
Self Assembly ◽  
Ring Opening ◽  
Periodic Structures ◽  
One Pot ◽  
Ordered Structures ◽  
Carbonyl Chloride ◽  
Thin Film Patterning ◽  
Nanoporous Templates

The ability of bottlebrush block copolymers (BBCPs) to self-assemble into ordered large periodic structures could greatly expand the scope of photonic and membrane technologies. In this paper, we describe a two-step synthesis of poly(l-lactide)-b-polystyrene (PLLA-b-PS) BBCPs and their rapid thin-film self-assembly. PLLA chains were grown from exo-5-norbornene-2-methanol via ring-opening polymerization (ROP) of l-lactide to produce norbornene-terminated PLLA. Norbonene-terminated PS was prepared using anionic polymerization followed by a termination reaction with exo-5-norbornene-2-carbonyl chloride. PLLA-b-PS BBCPs were prepared from these two norbornenyl macromonomers by a one-pot sequential ring opening metathesis polymerization (ROMP). PLLA-b-PS BBCPs thin-films exhibited cylindrical and lamellar morphologies depending on the relative block volume fractions, with domain sizes of 46–58 nm and periodicities of 70–102 nm. Additionally, nanoporous templates were produced by the selective etching of PLLA blocks from ordered structures. The findings described in this work provide further insight into the controlled synthesis of BBCPs leading to various possible morphologies for applications requiring large periodicities. Moreover, the rapid thin film patterning strategy demonstrated (>5 min) highlights the advantages of using PLLA-b-PS BBCP materials beyond their linear BCP analogues in terms of both dimensions achievable and reduced processing time.

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