Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction

Hideyuki Otsuka, Go Yamaguchi, Yuji Higaki, Atsushi Takahara

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Recently, the authors have reported the synthesis of "dynamic covalent polymers" which have alkoxyamine-based dynamic covalent bonds in their main chains. In this study, the authors report the reversible "ring-crossover" polymerization behavior of macrocycles containing alkoxyamine units which can show radical crossover reaction upon heating. Simple heating of the [2+2] macrocycle in anisole at 398 K afforded the corresponding poly(alkoxyamine) with Mn=2000-18000 due to the intermolecular radical crossover reaction. A [1+1] macrocycle was also synthesized by using diacid chloride with longer spacer. The oligomers obtained by radical ring-crossover polymerization were depolymerized to the monomers mainly by the intramolecular radical exchange process under high-dilution conditions.

元の言語英語
ホスト出版物のタイトル54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan
ページ2770-2771
ページ数2
54
エディション2
出版物ステータス出版済み - 2005
イベント54th SPSJ Symposium on Macromolecules - Yamagata, 日本
継続期間: 9 20 20059 22 2005

その他

その他54th SPSJ Symposium on Macromolecules
日本
Yamagata
期間9/20/059/22/05

Fingerprint

Ion exchange
Polymerization
Heating
Covalent bonds
Oligomers
Dilution
Monomers
Polymers

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Otsuka, H., Yamaguchi, G., Higaki, Y., & Takahara, A. (2005). Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction. : 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan (2 版, 巻 54, pp. 2770-2771)

Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction. / Otsuka, Hideyuki; Yamaguchi, Go; Higaki, Yuji; Takahara, Atsushi.

54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 巻 54 2. 編 2005. p. 2770-2771.

研究成果: 著書/レポートタイプへの貢献会議での発言

Otsuka, H, Yamaguchi, G, Higaki, Y & Takahara, A 2005, Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction. : 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 2 Edn, 巻. 54, pp. 2770-2771, 54th SPSJ Symposium on Macromolecules, Yamagata, 日本, 9/20/05.
Otsuka H, Yamaguchi G, Higaki Y, Takahara A. Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction. : 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 2 版 巻 54. 2005. p. 2770-2771
Otsuka, Hideyuki ; Yamaguchi, Go ; Higaki, Yuji ; Takahara, Atsushi. / Reversible ring-crossover polymerization of macrocycles based on radical exchange reaction. 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 巻 54 2. 版 2005. pp. 2770-2771
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