Segregated Polymer Brushes via "Grafting to" and ATRP "Grafting from" Chain Anchoring

2009 ◽  
pp. 215-230 ◽  
Author(s):  
Yong Liu ◽  
Viktor Klep ◽  
Igor Luzinov
Keyword(s):  
Polymer Brushes ◽  
Grafting From

Nanostructured Polymer Brushes With Reversibly Changing Properties

2002 ◽  
Vol 727 ◽  
Author(s):  
Denys Usov ◽  
Manfred Stamm ◽  
Sergiy Minko ◽  
Christian Froeck ◽  
Andreas Scholl ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Phase Segregation ◽  
Water Contact ◽  
Angle Measurements ◽  
Nanostructured Polymer ◽  
Contact Angle Measurements ◽  
Vertical Segregation ◽  
Oxygen Plasma Etching ◽  
Grafting From ◽  
Photoemission Electron

AbstractWe investigated the interplay between different mechanisms of the lateral and vertical segregation in the synthesized via “grafting from” approach symmetric A/B (where A and B are poly(styrene-co-2,3,4,5,6-pentafluorostyrene) and poly(methylmethacrylate), respectively) polymer brushes upon exposure to different solvents. We used X-ray photoemission electron spectroscopy and microscopy (X-PEEM), AFM, water contact angle measurements, and oxygen plasma etching to study morphology of the brushes. The ripple morphology after toluene (nonselective solvent) revealed elongated lamellar-like domains of A and B polymers alternating across the surface. The dimple-A morphology consisting of round clusters of the polymer A was observed after acetone (selective solvent for B). The top layer was enriched with the polymer B showing that the brush underwent both the lateral and vertical phase segregation. A qualitative agreement with predictions of SCF theory was found.

scholarly journals Synthesis of Poly(ester-graft-methyl methacrylate) on a Macroinitiator with Lateral Sulfonyl Chloride Groups by Atom Transfer Radical Polymerization

2021 ◽  
Vol 63 (4) ◽  
pp. 385-391
Author(s):  
T. K. Meleshko ◽  
A. B. Razina ◽  
N. N. Bogorad ◽  
M. P. Kurlykin ◽  
A. V. Kashina ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Sulfonyl Chloride ◽  
Physical And Mechanical Properties ◽  
Degree Of Polymerization ◽  
Side Chains ◽  
Grafting From

Abstract New polymer brushes with an ester backbone and poly(methyl methacrylate) side chains are synthesized by polycondensation and polymerization methods. The initiating groups are sulfonyl chloride groups laterally attached to the polyester chain. PMMA side chains are grafted by the ATRP method according to the “grafting from” multicenter macroinitiator strategy. The conditions for the polymerization processes in a controlled mode are selected, and the ways of targeted regulation of the degree of polymerization of methacrylate side chains are determined. Using the synthesized copolymers self-supporting films are obtained, and their physical and mechanical properties are studied.

scholarly journals ON/OFF switching of silicon wafer electrochemistry by pH-responsive polymer brushes

2016 ◽  
Vol 4 (26) ◽  
pp. 6287-6294 ◽  
Author(s):  
G. Panzarasa ◽  
M. Dübner ◽  
V. Pifferi ◽  
G. Soliveri ◽  
C. Padeste
Keyword(s):  
Silicon Wafer ◽  
Methacrylic Acid ◽  
Polymer Brushes ◽  
Ph Responsive ◽  
Controlled Switching ◽  
Responsive Polymer ◽  
Grafting From ◽  
Hybrid Devices ◽  
Ph Controlled

Grafting-from of poly(methacrylic acid) brushes enables pH-controlled switching of silicon wafer electrochemistry, making possible the design of new electrochemical hybrid devices.

Micropatterning of Polymer Brushes: Grafting from Dewetting Polymer Films for Biological Applications

2012 ◽  
Vol 13 (9) ◽  
pp. 2989-2996 ◽  
Author(s):  
A. M. Telford ◽  
L. Meagher ◽  
V. Glattauer ◽  
T. R. Gengenbach ◽  
C. D. Easton ◽  
...  
Keyword(s):  
Polymer Films ◽  
Polymer Brushes ◽  
Biological Applications ◽  
Grafting From

scholarly journals Distribution of Chains in Polymer Brushes Produced by a “Grafting From” Mechanism

2016 ◽  
Vol 49 (2) ◽  
pp. 547-553 ◽  
Author(s):  
Andre P. Martinez ◽  
Jan-Michael Y. Carrillo ◽  
Andrey V. Dobrynin ◽  
Douglas H. Adamson
Keyword(s):  
Polymer Brushes ◽  
Grafting From

Growth of polymer brushes by “grafting from” via ATRP – Monte Carlo simulations

Polymer ◽  
2017 ◽  
Vol 130 ◽  
pp. 267-279 ◽  
Author(s):  
Piotr Polanowski ◽  
Krzysztof Hałagan ◽  
Joanna Pietrasik ◽  
Jeremiasz K. Jeszka ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Polymer Brushes ◽  
Grafting From

Planar Molecular and Macromolecular Gradients: Preparation and Properties

2001 ◽  
Vol 707 ◽  
Author(s):  
J. Genzer ◽  
T. Wu ◽  
K. Efimenko
Keyword(s):  
Polymer Brushes ◽  
Polymer Brush ◽  
Solid Substrate ◽  
Polymerization Time ◽  
Grafting Density ◽  
Solid Substrates ◽  
Grafting From ◽  
Gradual Variation ◽  
Polymer Density

ABSTRACTWe present a method for fabricating polymer brushes with a gradual variation of grafting density on solid substrates. The technique for generating such structures consists of: i) deposition of a molecular gradient of polymerization initiator on the solid substrate, and ii) polymerization from the substrate bound initiator centers (“grafting from”). In this publication we describe the preparation of gradient polymer brushes of poly(acryl amide) on silica-covered substrates. We show that the polymer density within the gradient polymer brush can be varied by controlling the polymerization time.

Planar Molecular and Macromolecular Gradients: Preparation and Properties

2001 ◽  
Vol 705 ◽  
Author(s):  
J. Genzer ◽  
T. Wu ◽  
K. Efimenko
Keyword(s):  
Polymer Brushes ◽  
Polymer Brush ◽  
Solid Substrate ◽  
Polymerization Time ◽  
Grafting Density ◽  
Solid Substrates ◽  
Grafting From ◽  
Gradual Variation ◽  
Polymer Density

AbstractWe present a method for fabricating polymer brushes with a gradual variation of grafting density on solid substrates. The technique for generating such structures consists of: i) deposition of a molecular gradient of polymerization initiator on the solid substrate, and ii) polymerization from the substrate bound initiator centers (“grafting from”). In this publication we describe the preparation of gradient polymer brushes of poly(acryl amide) on silica-covered substrates. We show that the polymer density within the gradient polymer brush can be varied by controlling the polymerization time.

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