Revival of the R-Group Approach: A “CTA-shuttled” Grafting from Approach for Well-Defined Cylindrical Polymer Brushes via RAFT Polymerization

2013 ◽  
Vol 35 (2) ◽  
pp. 234-241 ◽  
Author(s):  
Zhicheng Zheng ◽  
Jun Ling ◽  
Axel H. E. Müller
Keyword(s):  
Polymer Brushes ◽  
Raft Polymerization ◽  
Group Approach ◽  
Grafting From

A CTA-shuttled R-group approach: a versatile synthetic tool towards well-defined functional cylindrical polymer brushes via RAFT polymerization

2017 ◽  
Vol 8 (17) ◽  
pp. 2659-2665 ◽  
Author(s):  
Yifei Wang ◽  
Zhicheng Zheng ◽  
Zhengdong Huang ◽  
Jun Ling
Keyword(s):  
Polymer Brushes ◽  
Raft Polymerization ◽  
Group Approach

We report a novel three-step strategy toward polyCTA for the synthesis of cylindrical polymer brushes via “CTA-shuttled” RAFT R-approach polymerization. Post functionalizations on the CTA residue are also discussed.

The in situ “grafting from” approach for the synthesis of polymer brushes on upconversion nanoparticles via NIR-mediated RAFT polymerization

2021 ◽  
Author(s):  
Lingjuan Hu ◽  
Qianqian Hao ◽  
Linan Wang ◽  
Zhe Cui ◽  
Peng Fu ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Polymer Brushes ◽  
Raft Polymerization ◽  
Surface Growth ◽  
Upconversion Nanoparticles ◽  
Grafting From

Through NIR-mediated RAFT polymerization, surface growth of polymer brushes on UCNPs was realized based on an efficient in situ ligand exchange.

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.

PET-RAFT polymerization catalyzed by cadmium selenide quantum dots (QDs): Grafting-from QDs photocatalysts to make polymer nanocomposites

2020 ◽  
Vol 11 (5) ◽  
pp. 1018-1024 ◽  
Author(s):  
Yifan Zhu ◽  
Eilaf Egap
Keyword(s):  
Quantum Dots ◽  
Cadmium Selenide ◽  
Polymer Nanocomposites ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Cdse Qds ◽  
Reversible Addition ◽  
Cadmium Selenide Quantum Dots ◽  
Grafting From ◽  
Chain Transfer Polymerization

We report herein the first example of light-controlled radical reversible addition–fragmentation chain transfer polymerization facilitated by cadmium selenide quantum dots and the grafting-from CdSe QDs to create polymer-QDs nanocomposites.

Lignin and soy oil-derived polymeric biocomposites by “grafting from” RAFT polymerization

2016 ◽  
Vol 18 (18) ◽  
pp. 4974-4981 ◽  
Author(s):  
Yuzhi Xu ◽  
Liang Yuan ◽  
Zhongkai Wang ◽  
Perry A. Wilbon ◽  
Chunpeng Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Soybean Oil ◽  
Raft Polymerization ◽  
Soy Oil ◽  
Linear Polymers ◽  
Grafting From

The “grafting from” RAFT enabled synthesis of soybean oil and lignin polymeric biocomposites that exhibit enhanced mechanical properties compared to linear polymers is reported.

PHEA-g-PDMAEA well-defined graft copolymers: SET-LRP synthesis, self-catalyzed hydrolysis, and quaternization

2016 ◽  
Vol 7 (45) ◽  
pp. 6973-6979 ◽  
Author(s):  
Fangxu Sun ◽  
Chun Feng ◽  
Haoyu Liu ◽  
Xiaoyu Huang
Keyword(s):  
Raft Polymerization ◽  
Graft Copolymers ◽  
Side Chains ◽  
Grafting From

This article reports the synthesis of well-defined graft copolymers containing a PHEA backbone and degradable PDMAEA side chains, by the combination of RAFT polymerization, SET-LRP, and the grafting-from strategy.

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