Controlling the kinetics of viscoelastic phase separation through self-assembly of spherical nanoparticles or block copolymers

Soft Matter ◽  
2014 ◽  
Vol 10 (46) ◽  
pp. 9270-9280 ◽  
Author(s):  
Jafar Khademzadeh Yeganeh ◽  
Fatemeh Goharpey ◽  
Esmaeel Moghimi ◽  
George Petekidis ◽  
Reza Foudazi
Keyword(s):  
Phase Separation ◽  
Block Copolymers ◽  
Self Assembly ◽  
Spherical Nanoparticles ◽  
Kinetics Of

scholarly journals Kinetics of directed self-assembly of block copolymers on chemically patterned substrates

2015 ◽  
Vol 640 ◽  
pp. 012010 ◽  
Author(s):  
Marcus Müller ◽  
Weihua Li ◽  
Juan Carlos Orozco Rey ◽  
Ulrich Welling
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Patterned Substrates ◽  
Kinetics Of

Block Copolymers: Thermodynamics, Dynamics, and Small-Angle Scattering

2015 ◽  
Author(s):  
Lee M. Trask ◽  
Nacu Hernandez ◽  
Eric W. Cochran
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Small Angle ◽  
Self Assembly ◽  
Microphase Separation ◽  
Small Angle Scattering ◽  
Angle Scattering ◽  
Copolymer Melts ◽  
Shear Processing ◽  
Kinetics Of

This article explores the dynamics, thermodynamics, and small-angle scattering of block copolymers. The goal is to determine what drives the applications of block copolymers, i.e. how block copolymers behave and how they are characterized. The article begins with a summary of the experimental data and various theories that comprise our understanding of block copolymer thermodynamics, with particular emphasis on phase behavior and especially the theory of microphase separation. It then considers topics related to block copolymer dynamics, including diffusion, viscoelasticity and rheology, shear-processing, and the kinetics of self-assembly. It also discusses small-angle scattering techniques as applied to block copolymer characterization, including scattering from ordered block copolymer melts.

Unraveling the kinetics of the structural development during polymerization-induced self-assembly: decoupling the polymerization and the micelle structure

2020 ◽  
Vol 11 (8) ◽  
pp. 1514-1524 ◽  
Author(s):  
Rintaro Takahashi ◽  
Shotaro Miwa ◽  
Fabian H. Sobotta ◽  
Ji Ha Lee ◽  
Shota Fujii ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Aqueous Solutions ◽  
Polymer Chain ◽  
Self Assembly ◽  
Structural Development ◽  
Micelle Structure ◽  
Hydrophobic Polymer ◽  
Kinetics Of

Upon extending a hydrophobic polymer chain from the end of a preceding hydrophilic chain in aqueous solutions, the resultant block copolymers may eventually undergo self-assembly.

Engineering the Kinetics of Directed Self-Assembly of Block Copolymers toward Fast and Defect-Free Assembly

2018 ◽  
Vol 10 (27) ◽  
pp. 23414-23423 ◽  
Author(s):  
Jiaxing Ren ◽  
Chun Zhou ◽  
Xuanxuan Chen ◽  
Moshe Dolejsi ◽  
Gordon S. W. Craig ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Kinetics Of

Phase separation and self-assembly of cyclic amphiphilic block copolymers with a main-chain liquid crystalline segment

2015 ◽  
Vol 6 (22) ◽  
pp. 4167-4176 ◽  
Author(s):  
Satoshi Honda ◽  
Maito Koga ◽  
Masatoshi Tokita ◽  
Takuya Yamamoto ◽  
Yasuyuki Tezuka
Keyword(s):  
Phase Separation ◽  
Solid State ◽  
Block Copolymers ◽  
Electric Field ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Amphiphilic Block Copolymers ◽  
Cylindrical Micelles ◽  
Self Assembled

The effects of the macrocyclization of amphiphiles with a liquid crystalline segment were investigated in the solid state, and electric field-responsive cylindrical micelles and vesicles were self-assembled.

Enhancing the Directed Self-assembly Kinetics of Block Copolymers Using Binary Solvent Mixtures

2015 ◽  
Vol 7 (46) ◽  
pp. 25843-25850 ◽  
Author(s):  
Woon Ik Park ◽  
Young Joong Choi ◽  
Je Moon Yun ◽  
Suck Won Hong ◽  
Yeon Sik Jung ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Binary Solvent Mixtures ◽  
Assembly Kinetics ◽  
Kinetics Of

Ordering kinetics of lamella-forming block copolymers under the guidance of various external fields studied by dynamic self-consistent field theory

2017 ◽  
Vol 19 (9) ◽  
pp. 6707-6720 ◽  
Author(s):  
Xiaomin Wan ◽  
Tong Gao ◽  
Liangshun Zhang ◽  
Jiaping Lin
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
The Self ◽  
Ordering Kinetics ◽  
Consistent Field ◽  
Self Consistent ◽  
Self Consistent Field ◽  
Self Consistent Field Theory ◽  
Kinetics Of ◽  
Permanent Field

We theoretically engineer a new scheme, which integrates a permanent field for pattern registration and a dynamic external field for defect annihilation, to direct the self-assembly of block copolymers.

Self-Assembly of Hydrogels From Elastin-Mimetic Block Copolymers

2002 ◽  
Vol 724 ◽  
Author(s):  
Elizabeth R. Wright ◽  
R. Andrew McMillan ◽  
Alan Cooper ◽  
Robert P. Apkarian ◽  
Vincent P. Conticello
Keyword(s):  
Block Copolymers ◽  
Self Assembly ◽  
Triblock Copolymers ◽  
Variable Temperature ◽  
Inverse Temperature ◽  
Temperature Transition ◽  
Scanning Calorimetry ◽  
Design Synthesis ◽  
Inverse Temperature Transition ◽  
Functional Biomaterials

AbstractTriblock copolymers have traditionally been synthesized with conventional organic components. However, triblock copolymers could be synthesized by the incorporation of two incompatible protein-based polymers. The polypeptides would differ in their hydrophobicity and confer unique physiochemical properties to the resultant materials. One protein-based polymer, based on a sequence of native elastin, that has been utilized in the synthesis of biomaterials is poly (Valine-Proline-Glycine-ValineGlycine) or poly(VPGVG) [1]. This polypeptide has been shown to have an inverse temperature transition that can be adjusted by non-conservative amino acid substitutions in the fourth position [2]. By combining polypeptide blocks with different inverse temperature transition values due to hydrophobicity differences, we expect to produce amphiphilic polypeptides capable of self-assembly into hydrogels. Our research examines the design, synthesis and characterization of elastin-mimetic block copolymers as functional biomaterials. The methods that are used for the characterization include variable temperature 1D and 2D High-Resolution-NMR, cryo-High Resolutions Scanning Electron Microscopy and Differential Scanning Calorimetry.

In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

2019 ◽  
Author(s):  
Hao Wu ◽  
Jeffrey Ting ◽  
Siqi Meng ◽  
Matthew Tirrell
Keyword(s):  
Small Angle ◽  
Self Assembly ◽  
Electrostatic Interactions ◽  
Polyelectrolyte Complex ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Kinetics Of ◽  
Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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