Iniferter techniques

Otsu, T. and Matsumoto, A.-. Controlled Synthesis of Polymers Using the Iniferter Technique Developments in Living Radical Polymerization. Vol. 136, pp. 75-138. 

Controlled Synthesis of Polymers Using the Iniferter Technique Developments in Living Radical Polymerization... 

In this article these concepts are described first, and the results of the controlled synthesis of polymers using the iniferter technique are discussed. In the last section, the excellent progress of living radical polymerization during recent years, from 1993 up to 1997, is summarized. 

Such a two-component iniferter technique is also applied to the living radical polymerization of several DC photoiniferters for the design of block and graft copolymer synthesis (Sect. 5). 

The synthesis of some multiblock copolymers was attempted by successive polymerization using this iniferter technique. However, pure tri- or tetrablock copolymers free from homopolymers were not isolated by solvent extraction because no suitable solvent was found for the separation. In 1963, Merrifield reported a brilliant solid-phase peptide synthesis using a reagent attached to the polymer support. If a similar idea can be applied to the iniferter technique, pure block copolymer could be synthesized by radical polymerization. The DC group attached to a polystyrene gel (PSG) through a hydrolyzable ester spacer was prepared and used as a PSG photoiniferter (Eq. 53) [186] ... 

Otaigbe,]. U., Barnes, M. D., Fukui, K., Sumpter, B. G. and Noid, D. W. Generation, Characterization, and Modeling of Polymer Micro- and Nano-Particles. Vol. 154, pp. 1-86. Otsu, T. and Matsumoto, A. Controlled Synthesis of Polymers Using the Iniferter Technique Developments in Living Radical Polymerization. Vol. 136, pp. 75-138. 

Otsu T, Matsumoto A (1998) Controlled synthesis of polymers using the iniferter technique developments in living radical polymerization. Adv Polym Sci 136 75-137... 

Otsu, T. Yoshida, M. Makromol. Chem. Rapid Commun. 1982, 3, 127. Otsu, T. Yoshida, M. Makromol. Chem. Rapid Commun. 1982, 3, 133. Otsu, T. Matsunaga, T. Kuriyama, A. Yoshioka, M. Eur. Polym. J. 1989, 25, 643, and references therein. In a lucid highlight, Prof. Otsu has recently reviewed his work and the iniferter technique. An iniferter is a compound the fragments of which Initiate and preferably cross-terminate by primary radical termination and which is subject to chain transfer from the propagating species, although for many of Otsu s examples chain transfer is unlikely. Otsu, T. J. Polym. Sci, Part A Polym. Chem. 2000, 38, 2121. 

---