Effects of cosolvent partitioning on conformational transitions and tethered chain flexibility in spherical polymer brush

Soft Matter ◽  
2021 ◽  
Author(s):  
Peng Wei Zhu

In this work, based on the framework of preferential adsorption concept and analytical self-consistent field (SCF) theory, a model is proposed to investigate the reentrant transition experimentally observed from the...

Soft Matter ◽  
2011 ◽  
Vol 7 (19) ◽  
pp. 8776 ◽  
Author(s):  
Su-Mi Hur ◽  
Amalie L. Frischknecht ◽  
Dale L. Huber ◽  
Glenn H. Fredrickson

Soft Matter ◽  
2014 ◽  
Vol 10 (32) ◽  
pp. 5974-5990 ◽  
Author(s):  
Andrey Milchev ◽  
Sergei A. Egorov ◽  
Kurt Binder

The adsorption of long flexible macromolecules by polymer brush-coated surfaces is studied by molecular dynamics simulations and by calculations using density functional and self-consistent field theories.


2004 ◽  
Vol 18 (17n19) ◽  
pp. 2469-2475 ◽  
Author(s):  
JIUNN-REN ROAN

Combining Edwards' self-consistent-field (SCF) theory and numerical techniques borrowed from fluid dynamics, I have developed a SCF theory for spherical polymeric assemblies. The theory is being used to determine the equilibrium structure of a polymer layer formed by immiscible polymers end-grafted onto a spherical nanoparticle. Here I report some of the preliminary results.


Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3929
Author(s):  
Mikhail Y. Laktionov ◽  
Ekaterina B. Zhulina ◽  
Ralf P. Richter ◽  
Oleg V. Borisov

To study conformational transition occuring upon inferior solvent strength in a brush formed by linear or dendritically branched macromolecules tethered to the inner surface of cylindrical or planar (slit-like) pore, a self-consistent field analytical approach is employed. Variations in the internal brush structure as a function of variable solvent strength and pore radius, and the onset of formation of a hollow channel in the pore center are analysed. The predictions of analytical theory are supported and complemented by numerical modelling by a self-consistent field Scheutjens–Fleer method. Scaling arguments are used to study microphase segregation under poor solvent conditions leading to formation of a laterally and longitudinally patterned structure in planar and cylindrical pores, respectively, and the effects of confinement on "octopus-like" clusters in the pores of different geometries.


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