Effects of acetic anhydride on the activation and polymerization rates in nitroxide-mediated polymerization of styrene

Atsushi Goto; Yoshinobu Tsujii; Takeshi Fukuda

doi:10.1246/cl.2000.788

Effects of acetic anhydride on the activation and polymerization rates in nitroxide-mediated polymerization of styrene

Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda^*

^*Corresponding author for this work

Kyoto University

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

22 Citations (Scopus)

Abstract

In order to assess the recent suggestion of Hawker et al.¹ that the C-ON bond of an alkoxyamine is weakened by acetic anhydride (Ac₂O), the activation (dissociation) rate constant k_act of a polystyrene-nitroxide adduct was directly determined in the presence of Ac₂O. The result showed that Ac₂O has no effect on the activation rate, contrary to the suggestion. On the other hand, Ac₂O was confirmed to accelerate the polymerization rate. The mechanism of acceleration was discussed.

Original language	English
Pages (from-to)	788-789
Number of pages	2
Journal	Chemistry Letters
Issue number	7
DOIs	https://doi.org/10.1246/cl.2000.788
Publication status	Published - 2000
Externally published	Yes

ASJC Scopus Subject Areas

General Chemistry

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title = "Effects of acetic anhydride on the activation and polymerization rates in nitroxide-mediated polymerization of styrene",

abstract = "In order to assess the recent suggestion of Hawker et al.1 that the C-ON bond of an alkoxyamine is weakened by acetic anhydride (Ac2O), the activation (dissociation) rate constant kact of a polystyrene-nitroxide adduct was directly determined in the presence of Ac2O. The result showed that Ac2O has no effect on the activation rate, contrary to the suggestion. On the other hand, Ac2O was confirmed to accelerate the polymerization rate. The mechanism of acceleration was discussed.",

author = "Atsushi Goto and Yoshinobu Tsujii and Takeshi Fukuda",

year = "2000",

doi = "10.1246/cl.2000.788",

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T1 - Effects of acetic anhydride on the activation and polymerization rates in nitroxide-mediated polymerization of styrene

AU - Goto, Atsushi

AU - Tsujii, Yoshinobu

AU - Fukuda, Takeshi

PY - 2000

Y1 - 2000

N2 - In order to assess the recent suggestion of Hawker et al.1 that the C-ON bond of an alkoxyamine is weakened by acetic anhydride (Ac2O), the activation (dissociation) rate constant kact of a polystyrene-nitroxide adduct was directly determined in the presence of Ac2O. The result showed that Ac2O has no effect on the activation rate, contrary to the suggestion. On the other hand, Ac2O was confirmed to accelerate the polymerization rate. The mechanism of acceleration was discussed.

AB - In order to assess the recent suggestion of Hawker et al.1 that the C-ON bond of an alkoxyamine is weakened by acetic anhydride (Ac2O), the activation (dissociation) rate constant kact of a polystyrene-nitroxide adduct was directly determined in the presence of Ac2O. The result showed that Ac2O has no effect on the activation rate, contrary to the suggestion. On the other hand, Ac2O was confirmed to accelerate the polymerization rate. The mechanism of acceleration was discussed.

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JO - Chemistry Letters

JF - Chemistry Letters

IS - 7

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Effects of acetic anhydride on the activation and polymerization rates in nitroxide-mediated polymerization of styrene

Abstract

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