Effect of Block Sequence on the Self-Assembly of ABC Terpolymers in Selective Solvent

2008 ◽  
Vol 112 (51) ◽  
pp. 16455-16460 ◽  
Author(s):  
Yi Zhang ◽  
Wencheng Lin ◽  
Rongkuan Jing ◽  
Junlian Huang
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Block Sequence ◽  
Selective Solvent

scholarly journals Cylindrical Micelles by the Self-Assembly of Crystalline-b-Coil Polyphosphazene-b-P2VP Block Copolymers. Stabilization of Gold Nanoparticles

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1772 ◽  
Author(s):  
Maria de los Angeles Cortes ◽  
Raquel de la Campa ◽  
Maria Luisa Valenzuela ◽  
Carlos Díaz ◽  
Gabino A. Carriedo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymers ◽  
Self Assembly ◽  
Cationic Polymerization ◽  
The Self ◽  
The Novel ◽  
Selective Solvent ◽  
The Core ◽  
Cylindrical Micelles ◽  
Main Factor

During the last number of years a variety of crystallization-driven self-assembly (CDSA) processes based on semicrystalline block copolymers have been developed to prepare a number of different nanomorphologies in solution (micelles). We herein present a convenient synthetic methodology combining: (i) The anionic polymerization of 2-vinylpyridine initiated by organolithium functionalized phosphane initiators; (ii) the cationic polymerization of iminophosphoranes initiated by –PR2Cl2; and (iii) a macromolecular nucleophilic substitution step, to prepare the novel block copolymers poly(bistrifluoroethoxy phosphazene)-b-poly(2-vinylpyridine) (PTFEP-b-P2VP), having semicrystalline PTFEP core forming blocks. The self-assembly of these materials in mixtures of THF (tetrahydrofuran) and 2-propanol (selective solvent to P2VP), lead to a variety of cylindrical micelles of different lengths depending on the amount of 2-propanol added. We demonstrated that the crystallization of the PTFEP at the core of the micelles is the main factor controlling the self-assembly processes. The presence of pyridinyl moieties at the corona of the micelles was exploited to stabilize gold nanoparticles (AuNPs).

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.

Effect of Selective Solvents on Self-Assembly of Cationic Amphiphilic Triblock Copolymers Q-PVBC-b-PS-B-Q-PVBC

2013 ◽  
Vol 787 ◽  
pp. 245-249
Author(s):  
Bing Bing Yang ◽  
Yan Shi ◽  
Zhi Feng Fu
Keyword(s):  
Self Assembly ◽  
Triblock Copolymer ◽  
Raft Polymerization ◽  
The Self ◽  
Amphiphilic Block Copolymers ◽  
Selective Solvent ◽  
Selective Solvents ◽  
Amphiphilic Triblock Copolymer ◽  
Ps I ◽  
Assembly Behavior

Self-assembly behavior of an cationic amphiphilic triblock copolymer Q-PVBC -b-PS-b-Q-PVBC in DMF/water and DMF/methanol were studied. Well defined triblock copolymer PVBC-b-PS-b-PVBC was synthesized by RAFT polymerization and the cationic amphiphilic block copolymers Q-PVBC-b-PS-b-Q-PVBC was obtained by the quaternization of hydrophobic precursors with triethylamine. It is concluded that that selective solvents had a great effect on the self-assemble morphologies of the polymer. Comparing to the micelles treating water as the selective solvent, the aggregates using methanol were irregular spheres and had larger diameter.

A DISSIPATIVE PARTICLE DYNAMICS STUDY ON THE MORPHOLOGIES OF H-SHAPED BLOCK COPOLYMERS IN SOLVENT

2011 ◽  
Vol 25 (06) ◽  
pp. 843-850
Author(s):  
XI SHAO ◽  
KAI YANG ◽  
YU-QIANG MA
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
The Self ◽  
Selective Solvent ◽  
Convenient Approach ◽  
Multicompartment Micelles ◽  
Dynamics Method

Multicompartment micelles have advanced applications in biological and pharmaceutical fields. The self-assembly of the block copolymers with different chain architectures provides versatile and powerful routes to obtain multicompartment micelles in water. Here we apply the dissipative particle dynamics method to study the self-assembly of H-shaped triblock copolymers in a selective solvent. It is found that the H-shaped triblock copolymers can form micelles with different morphologies, such as worm-like micelles, hamburger micelles, core-shell-corona micelles, and cylinder micelles, etc. Among them, the cylinder micelles have not been reported before in the case of the copolymers with similar chain architecture (e.g., Y-shaped copolymer). We demonstrate a convenient approach to obtain different morphologies by only adjusting the arrangement of the copolymers' blocks. These results may be helpful for the design of multicompartment micelles for various application purposes.

Influence of block sequence on the colloidal self-assembly of poly(norbornene)-block-poly(ethylene oxide) amphiphilic block polymers using rapid injection processing

2020 ◽  
Vol 11 (2) ◽  
pp. 375-384 ◽  
Author(s):  
Chao Lang ◽  
Manish Kumar ◽  
Robert J. Hickey
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
The Self ◽  
Block Sequence ◽  
Block Polymers ◽  
Assembly Method ◽  
Rapid Injection ◽  
Poly Ethylene Oxide ◽  
Amphiphilic Block Polymers ◽  
Poly Ethylene

A facile self-assembly method, rapid injection, was used to study the self-assembly difference between AB diblock and ABA triblock copolymers.

Dissipative particle dynamics simulation on the self-assembly of linear ABC triblock copolymers under rigid spherical confinements

e-Polymers ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 321-331 ◽  
Author(s):  
Xiaoqiang Liu ◽  
Chun Zhou ◽  
Honggang Xia ◽  
Yang Zhou ◽  
Weidong Jiang
Keyword(s):  
Self Assembly ◽  
Triblock Copolymers ◽  
Dissipative Particle Dynamics ◽  
Particle Dynamics ◽  
The Self ◽  
Dynamics Simulation ◽  
Block Sequence ◽  
Abc Triblock Copolymers ◽  
Dynamics Simulations ◽  
Dissipative Particle Dynamics Simulation

AbstractAlthough a great deal of unique nanostructures were already obtained from polymer self-assemblies in terms of conventional parameters, the self-assembly under the confinement is still not well understood. Here, dissipative particle dynamics simulations were used to explore the self-assemble behaviors of linear ABC triblock copolymers under rigid spherical confinements. First several unusual morphologies, such as multilayer onion, coupled helix, and stacked lamella, were distinguished from the total 210 simulations. Second, the influences of three important parameters (block sequence, wall selectivity, and spherical radius) on the morphologies were discussed in detail. Finally, the dynamics evolution of several typical aggregates was examined. This simulation enriches micelle morphologies for the self-assembly of linear ABC triblock copolymers under rigid spherical confinements and is helpful to understand the formation of valuable nanostructures from linear ABC terpolymers.

Sign in / Sign up

Export Citation Format

Share Document