New polymer synthesis by nitroxide mediated living radical polymerizations.

Metal-catalyzed living radical polymerization.

Controlled/living radical polymerization: Features, developments, and perspectives

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.

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Living radical polymerization by the RAFT process

http://wwwcourses.sens.buffalo.edu/ce435/Riess03.pdf

Micellization of block copolymers

Enabling High Lithium Conductivity in Polymerized Ionic Liquid Block Copolymer Electrolytes

Some representative thermal, chemical and mechanical characteristics of ‘commercial type’ polyimides are presented in this second paper in a series on using water as solvent in polyimide synthesis....

Water as Solvent in Polyimide Synthesis II: Processable Aromatic Polyimides

Some recent developments in RAFT polymerization

The preparation of forced gradient polymers has received considerable attention using batch reactors, while the preparation of usable quantities of forced gradient copolymers using continuous flow reactors has been hampered by the need to vary the composition of the monomer feedstock continuously during the reaction. A reactor that allows for addition of a monomer feedstock continuously at all points along the length of the reactor tubing allows for the preparation of forced gradient copolymers in continuous flow reactors, allowing for the scale-up and bulk preparation of these polymers. This study reports here the initial investigation of preparing forced gradient copolymers using the reversible addition–fragmentation chain transfer methodology in tube-in-tube continuous flow reactors.

Preparation of Forced Gradient Copolymers Using Tube‐in‐Tube Continuous Flow Reactors

The present invention relates to a process for continuously preparing polymer by RAFT solution polymerisation, the process comprising: introducing into a flow reactor a reaction solution comprising one or more ethylenically unsaturated monomers, RAFT agent, non- reactive solvent and free radical initiator; and promoting RAFT polymerisation of the one or more ethylenically unsaturated monomers within the reactor so as to form a polymer solution that flows out of the reactor.

John Chiefari

Papers

Enabling High Lithium Conductivity in Polymerized Ionic Liquid Block Copolymer Electrolytes

Water as Solvent in Polyimide Synthesis II: Processable Aromatic Polyimides

Some recent developments in RAFT polymerization

Preparation of Forced Gradient Copolymers Using Tube‐in‐Tube Continuous Flow Reactors

Continuous flow polymerisation process