Synthesis of Polymer Brushes on Silicate Substrates via Reversible Addition Fragmentation Chain Transfer Technique

Baum, Marina; Brittain, William J.

doi:10.1021/ma0112467

Cited by 389 publications

(334 citation statements)

References 18 publications

(27 reference statements)

Supporting

Mentioning

329

Contrasting

Unclassified

Order By: Relevance

“…[228] Most work has used ATRP or NMP, though papers on the use of RAFT polymerization have begun to appear. [229][230][231][232][233][234][235] The first to apply RAFT in this context were Tsujii et al [229] and Brittain and coworkers. [230,231] Recent papers describe RAFT polymerization from plasma-treated Teflon surfaces [232] and ozonolyzed polyimide films.…”

Section: Microgelsmentioning

confidence: 99%

“…[229][230][231][232][233][234][235] The first to apply RAFT in this context were Tsujii et al [229] and Brittain and coworkers. [230,231] Recent papers describe RAFT polymerization from plasma-treated Teflon surfaces [232] and ozonolyzed polyimide films. [235] The approach used in these and most other studies [230][231][232][233][234][235] has been to immobilize initiator functionality on the surface by chemical or plasma modification and use this to initiate polymerization in the presence of a dithioester RAFT agent.…”

Section: Microgelsmentioning

confidence: 99%

See 1 more Smart Citation

Living Radical Polymerization by the RAFT Process

Moad¹,

Rizzardo²,

Thang³

2005

Aust. J. Chem.

2,133

1,894

View full text Add to dashboard Cite

This paper presents a review of living radical polymerization achieved with thiocarbonylthio compounds [ZC( S)SR] by a mechanism of reversible addition-fragmentation chain transfer (RAFT). Since we first introduced the technique in 1998, the number of papers and patents on the RAFT process has increased exponentially as the technique has proved to be one of the most versatile for the provision of polymers of well defined architecture. The factors influencing the effectiveness of RAFT agents and outcome of RAFT polymerization are detailed. With this insight, guidelines are presented on how to conduct RAFT and choose RAFT agents to achieve particular structures. A survey is provided of the current scope and applications of the RAFT process in the synthesis of well defined homo-, gradient, diblock, triblock, and star polymers, as well as more complex architectures including microgels and polymer brushes.

show abstract

Section: Microgelsmentioning

confidence: 99%

Section: Microgelsmentioning

confidence: 99%

Living Radical Polymerization by the RAFT Process

Moad¹,

Rizzardo²,

Thang³

2005

Aust. J. Chem.

2,133

1,894

View full text Add to dashboard Cite

show abstract

“…Baum and Brittain [207] performed a RAFT polymerization from a silicon wafer covered by a silane azoinitiator, in the presence of a dithiobenzoate chain transfer agent. PMMA, PDMA, or PS brushes were obtained with thickness between 10 and 30 nm, but required radical initiator in solution during the polymerization to scavenge impurities, which lead to the presence of free polymer chains in solution.…”

Section: Raftmentioning

confidence: 99%

Surface treatment and characterization: Perspectives to electrophoresis and lab‐on‐chips

et al. 2006

View full text Add to dashboard Cite

The control and modification of surface state is a major challenge in bioanalytical sciences, and in particular in electrokinetic separation methods, due to the importance of electroosmosis. This topic has gained recently a renewed interest, associated with the development of "lab-on-chips" systems that extend the range of materials in which separation channels are fabricated. The surface science community has developed through the years a large toolbox of characterization tools and surface modification protocols, which is not yet fully exploited in the bioanalytical world. In this paper, we try and present an overview of these tools, in order to stimulate new ideas for improved and more controlled surface treatment strategies for separations in capillaries and microchannels. We briefly describe some physical and chemical aspects of electroosmosis (global and spatially resolved), streaming current, and streaming potential. We also review the main strategies for surface coating, and compare the advantages of physisorption, well-organized thin self-assembled monolayers, or conversely thick polymer "brushes". Examples of existing applications to electrophoresis in microchannel are also given.

show abstract

“…[7][8][9][10] Recent progress in the techniques of polymer synthesis makes it possible to produce well-defined polymer chains on the surfaces of various substrates. Living free-radical polymerizations, such as nitroxide-mediated radical polymerization, 11 atom transfer radical polymerization (ATRP) 12 and reversible addition-fragmentation chain-transfer (RAFT) 13 polymerizations, open up a promising way of designing and controlling macromolecular architecture under mild reaction condition. ATRP has been successfully used to synthesize the well-defined polymer-silicon hybrids.…”

Section: Introductionmentioning

confidence: 99%

“…Relatively few studies have been reported to the modification of silicon surfaces by the RAFT process and the application in biotechnology. 13,22,23 Herein, well-defined polymer-silicon wafer hybrids, tethered brushes of poly(glycidyl methacrylate) (PGMA) on a silicon wafer, were prepared via surface-initiated RAFT living radical polymerization. Kinetics study on the surface-initiated RAFT of GMA revealed that the chain growth from the silicon surface was consistent with a "controlled" process.…”

Section: Introductionmentioning

confidence: 99%

Covalent Immobilization of Glucose Oxidase on Well-Defined Polymer-Silicon Wafer Hybrids via Surface-Initiated Raft-Mediated Process

Xia

Liu

et al. 2013

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

A surface modification technique was developed for the functionalization of silicon surface with glucose oxidase (GOD). The silicon surface was first graft copolymerized with glycidyl methacrylate (GMA) via surface-initiated reversible addition-fragmentation chain-transfer (RAFT)-mediated process. GOD was then covalently immobilized through the ring-opening reaction between the amine groups of the GOD and the epoxide groups of the grafted GMA polymer chains. X-ray photoelectron spectroscopy (XPS) was used to characterize the surface-modified surface after each modification stage. Increasing the thickness of the polymer layer and the immobilization time could allow a great amount of GOD to be immobilized on the silicon surface. The GOD-functionalized silicon hybrids are promising candidates for the silicon-based glucose biosensors.

show abstract

Synthesis of Polymer Brushes on Silicate Substrates via Reversible Addition Fragmentation Chain Transfer Technique

Cited by 389 publications

References 18 publications

Living Radical Polymerization by the RAFT Process

Living Radical Polymerization by the RAFT Process

Surface treatment and characterization: Perspectives to electrophoresis and lab‐on‐chips

Covalent Immobilization of Glucose Oxidase on Well-Defined Polymer-Silicon Wafer Hybrids via Surface-Initiated Raft-Mediated Process

Contact Info

Product

Resources

About