ID | 115212 |
Author |
Hirano, Tomohiro
The University of Tokushima
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Miyamoto, Yuya
The University of Tokushima
Amano, Shinya
The University of Tokushima
Tatsumi, Kazuya
The University of Tokushima
Anmoto, Takuya
The University of Tokushima
Kimura, Hiroshi
The University of Tokushima
Yoshida, Ken
The University of Tokushima
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Oshimura, Miyuki
The University of Tokushima
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Ute, Koichi
The University of Tokushima
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Content Type |
Journal Article
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Description | A diethyl L-tartrate (L-EtTar)-assisted radical polymerization of N-vinyl-2-pyrrolidone has been developed as the first reported example of the synthesis of isotactic-rich poly(N-vinyl-2-pyrrolidone) (PVP). The addition of L-EtTar in toluene at temperatures of –40°C and lower led to a significant increase in the polymer yield by one order of magnitude compared with the reaction in the absence of L-EtTar. Decreasing the polymerization temperature led to increases in the isotacticity of the PVP, with the mm triad reaching 66.4% at −93 °C. 1H NMR measurement at 920 MHz was conducted to establish a reliable strategy for quantifying the triad tacticities. High-temperature NMR measurements at 250 °C were performed using a specially-designed NMR probe, which led to dramatic narrowing of the 1H line width.
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Journal Title |
RSC Advances
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ISSN | 20462069
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Publisher | The Royal Society of Chemistry
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Volume | 4
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Issue | 95
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Start Page | 53079
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End Page | 53089
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Published Date | 2014-10-03
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EDB ID | |
DOI (Published Version) | |
URL ( Publisher's Version ) | |
FullText File | |
language |
eng
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TextVersion |
Author
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departments |
Science and Technology
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