Self-assembly and adsorption of diblock copolymers from selective solvents. 2. Surface adsorption

1994 ◽  
Vol 27 (3) ◽  
pp. 683-688 ◽  
Author(s):  
Yongjian Zhan ◽  
Wayne L. Mattice
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Surface Adsorption ◽  
Selective Solvents

Self-assembly of linear diblock copolymers in selective solvents: from single micelles to particles with tri-continuous inner structures

Soft Matter ◽  
2020 ◽  
Vol 16 (26) ◽  
pp. 6056-6062 ◽  
Author(s):  
Xianggui Ye ◽  
Bamin Khomami
Keyword(s):  
Diblock Copolymer ◽  
Self Assembly ◽  
Large Scale ◽  
Diblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
The Self ◽  
Selective Solvent ◽  
Selective Solvents

Large-scale dissipative particle dynamics (DPD) simulations have been performed to investigate the self-assembly of over 20 000 linear diblock copolymer chains in a selective solvent.

1998 E.W.R. Steacie Award Lecture Asymmetric amphiphilic block copolymers in solution: a morphological wonderland

1999 ◽  
Vol 77 (8) ◽  
pp. 1311-1326 ◽  
Author(s):  
Neil S Cameron ◽  
Muriel K Corbierre ◽  
Adi Eisenberg
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Amphiphilic Block Copolymers ◽  
Polymer Composition ◽  
Selective Solvents ◽  
Thermodynamic And Kinetic Parameters ◽  
Amphiphilic Diblock Copolymers ◽  
Systematic Understanding ◽  
Selection Of ◽  
Qualitative Discussion

Asymmetric amphiphilic diblock copolymers self-assemble in selective solvents. Since 1995, when we first reported the systematic preparation of a sequence of various "crew-cut" aggregate morphologies from this class of copolymer in solution (1), we have identified a vast array of structures and have begun a detailed investigation of the thermodynamic and kinetic parameters that induce morphogenesis. Not only spheres, rods, bilayer and bicontinuous architectures, as well as inverted structures are observed, but also a selection of mixed, combined and much more complex aggregates is documented. All of these aggregates have a phase-separated insoluble core and a crew-cut soluble corona. Thus, all parameters that permit selective modification of the component of either phase or of the interface provide a window for morphological control. By carefully adjusting the polymer chain environment, it has been possible to develop a systematic understanding of morphogenic parameters, which include, among others, polymer composition, common solvent, initial concentration, temperature, type and concentration of added ions, method of preparation, and added homopolymer. To date, more than 30 publications have appeared in the literature from our group alone on this subject. One of the problems inherent with such a complicated system is the taxonomy or classification: which morphologies correspond to equilibrium positions and which are intermediate or trapped? An attempt at a logical presentation of the observed aggregates is given, preceded by a qualitative discussion of the thermodynamic framework for this system. Where possible, the transitions between morphologies are explained in the context of the thermodynamic parameters. Finally, parallels are drawn between the copolymer aggregates and biological architectures.Key words: crew-cut, morphology, block copolymer, self-assembly, amphiphile.

scholarly journals Uniform electroactive fibre-like micelle nanowires for organic electronics

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Xiaoyu Li ◽  
Piotr J. Wolanin ◽  
Liam R. MacFarlane ◽  
Robert L. Harniman ◽  
Jieshu Qian ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Charge Carrier ◽  
Self Assembly ◽  
Diblock Copolymers ◽  
Field Effect Transistors ◽  
Fibre Length ◽  
Charge Carrier Mobility ◽  
Degree Of Polymerization ◽  
Selective Solvents ◽  
The Individual

Abstract Micelles formed by the self-assembly of block copolymers in selective solvents have attracted widespread attention and have uses in a wide variety of fields, whereas applications based on their electronic properties are virtually unexplored. Herein we describe studies of solution-processable, low-dispersity, electroactive fibre-like micelles of controlled length from π-conjugated diblock copolymers containing a crystalline regioregular poly(3-hexylthiophene) core and a solubilizing, amorphous regiosymmetric poly(3-hexylthiophene) or polystyrene corona. Tunnelling atomic force microscopy measurements demonstrate that the individual fibres exhibit appreciable conductivity. The fibres were subsequently incorporated as the active layer in field-effect transistors. The resulting charge carrier mobility strongly depends on both the degree of polymerization of the core-forming block and the fibre length, and is independent of corona composition. The use of uniform, colloidally stable electroactive fibre-like micelles based on common π-conjugated block copolymers highlights their significant potential to provide fundamental insight into charge carrier processes in devices, and to enable future electronic applications.

Self-association of copolymers with various composition profiles

2010 ◽  
Vol 75 (4) ◽  
pp. 493-505 ◽  
Author(s):  
Jitka Kuldová ◽  
Peter Košovan ◽  
Zuzana Limpouchová ◽  
Karel Procházka ◽  
Oleg V. Borisov
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Monte Carlo Study ◽  
Pair Interaction ◽  
Selective Solvents ◽  
Structure Of Associates ◽  
Association Behavior ◽  
Composition Profiles ◽  
Self Association

In this paper, we present Monte Carlo study of the self-assembly of linear copolymers consisting of two types of segments (well soluble A and insoluble B segments) in selective solvents. We used simple lattice model: chains were represented by self-avoiding random walks and quality of solvent for both types of segments was controlled by pair interaction parameters. We analyzed how the association behavior depends on the composition profile, i.e., on the sequence of segments A and B along the chain. The size and structure of associates formed by chains with different composition profiles were compared with those of diblock copolymers with the same content of A and B segments. It was shown that even small changes in the sequence of segments within the chains lead to significant differences in the association behavior. In addition to composition profiles, we also shown how the association behavior depends on the quality of solvent and copolymer concentration.

Self-assembly and adsorption of diblock copolymers from selective solvents. 1. Self-assembly

1994 ◽  
Vol 27 (3) ◽  
pp. 677-682 ◽  
Author(s):  
Yongjian Zhan ◽  
Wayne L. Mattice
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Selective Solvents

Cylindrical Micelles from the Self-Assembly of Polyacrylonitrile-Based Diblock Copolymers in Nonpolar Selective Solvents

2008 ◽  
Vol 29 (4) ◽  
pp. 352-357 ◽  
Author(s):  
Massimo Lazzari ◽  
Dominique Scalarone ◽  
Carlos Vazquez-Vazquez ◽  
M. Arturo López-Quintela
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
The Self ◽  
Selective Solvents ◽  
Cylindrical Micelles

Janus-like spheres, disks, rings, cylinders, and vesicles from the self-assembly of mixture of AB and BC diblock copolymers in A- and C-selective solvents

Soft Matter ◽  
2013 ◽  
Vol 9 (27) ◽  
pp. 6254 ◽  
Author(s):  
Yuping Sheng ◽  
Xiaoping Yang ◽  
Nan Yan ◽  
Yutian Zhu
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
The Self ◽  
Selective Solvents

The directed self-assembly of amphiphilic diblock copolymers in selective solvents

2018 ◽  
Vol 39 (3) ◽  
pp. 326-332
Author(s):  
Jun Zhang ◽  
Weixin Kong ◽  
Haiming Duan
Keyword(s):  
Self Assembly ◽  
Diblock Copolymers ◽  
Selective Solvents ◽  
Amphiphilic Diblock Copolymers

Self-assembly of amphiphilic di and triblock copolymers of styrene and quaternized 5-(N,N-diethylamino) isoprene in selective solvents

Polymer ◽  
2003 ◽  
Vol 44 (7) ◽  
pp. 2117-2128 ◽  
Author(s):  
Izabel C Riegel ◽  
Dimitrios Samios ◽  
Cesar L Petzhold ◽  
Adi Eisenberg
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Selective Solvents
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