Low-temperature preparations of unimolecular nitroxide initiators for "living" free radical polymerizations

Rebecca Braslau; Leland C. Burrill; Michael Siano; Neeta Naik; Rodney K. Howden; Lara K. Mahal

doi:10.1021/ma970822p

Low-temperature preparations of unimolecular nitroxide initiators for "living" free radical polymerizations

Rebecca Braslau, Leland C. Burrill, Michael Siano, Neeta Naik, Rodney K. Howden, Lara K. Mahal

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Low-temperature methods for the preparation of monomeric initiators for use in "living" free radical olefin polymerizations have been developed. Oxidative methods for generating carbon radicals in the presence of nitroxide traps such as TEMPO utilize PbO₂ with benzylic, alkyl, or phenylhydrazines or CuCl₂ with lithium enolates. Photolytic methods employ [Cp(CO)₂Fe]₂ with a benzylic bromide, diphenyl disulfide with styrene, or di-tert-butyl peroxide with ethers. The use of di-tert-butyl hyponitrite with ethers generates carbon radicals at 50 °C that are trapped by TEMPO.

Original language	English (US)
Pages (from-to)	6445-6450
Number of pages	6
Journal	Macromolecules
Volume	30
Issue number	21
DOIs	https://doi.org/10.1021/ma970822p
State	Published - Oct 20 1997

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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abstract = "Low-temperature methods for the preparation of monomeric initiators for use in {"}living{"} free radical olefin polymerizations have been developed. Oxidative methods for generating carbon radicals in the presence of nitroxide traps such as TEMPO utilize PbO2 with benzylic, alkyl, or phenylhydrazines or CuCl2 with lithium enolates. Photolytic methods employ [Cp(CO)2Fe]2 with a benzylic bromide, diphenyl disulfide with styrene, or di-tert-butyl peroxide with ethers. The use of di-tert-butyl hyponitrite with ethers generates carbon radicals at 50 °C that are trapped by TEMPO.",

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T1 - Low-temperature preparations of unimolecular nitroxide initiators for "living" free radical polymerizations

AU - Braslau, Rebecca

AU - Burrill, Leland C.

AU - Siano, Michael

AU - Naik, Neeta

AU - Howden, Rodney K.

AU - Mahal, Lara K.

PY - 1997/10/20

Y1 - 1997/10/20

N2 - Low-temperature methods for the preparation of monomeric initiators for use in "living" free radical olefin polymerizations have been developed. Oxidative methods for generating carbon radicals in the presence of nitroxide traps such as TEMPO utilize PbO2 with benzylic, alkyl, or phenylhydrazines or CuCl2 with lithium enolates. Photolytic methods employ [Cp(CO)2Fe]2 with a benzylic bromide, diphenyl disulfide with styrene, or di-tert-butyl peroxide with ethers. The use of di-tert-butyl hyponitrite with ethers generates carbon radicals at 50 °C that are trapped by TEMPO.

AB - Low-temperature methods for the preparation of monomeric initiators for use in "living" free radical olefin polymerizations have been developed. Oxidative methods for generating carbon radicals in the presence of nitroxide traps such as TEMPO utilize PbO2 with benzylic, alkyl, or phenylhydrazines or CuCl2 with lithium enolates. Photolytic methods employ [Cp(CO)2Fe]2 with a benzylic bromide, diphenyl disulfide with styrene, or di-tert-butyl peroxide with ethers. The use of di-tert-butyl hyponitrite with ethers generates carbon radicals at 50 °C that are trapped by TEMPO.

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Low-temperature preparations of unimolecular nitroxide initiators for "living" free radical polymerizations

Abstract

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