Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation

Hideyuki Otsuka; Yasuharu Kobashi; Takatoshi Muta; Atsushi Takahara

Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation

Hideyuki Otsuka, Yasuharu Kobashi, Takatoshi Muta, Atsushi Takahara

Department of Applied Molecular Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this study, macromolecular crossover reaction of disulfide-containing polymers was investigated. The reaction proceeded in the presence of radical generators such as benzoyl peroxide at 80°C in anisole. The fractionated polymer with narrow molecular weight distribution reorganized to the polydispersed polymer due to the chain transfer reaction, but no decomposition of repeating units was observed during the reaction. The number average molecular weight slightly decreased after the reaction because catalytic amount of free-radical generators gave terminal groups of the polymer chains. The photoinduced macromolecular crossover reaction of disulfide-containing polyester and polyurethane was successfully carried out in tetrahydrofuran to afford the corresponding scrambled polymer.

Original language	English
Title of host publication	54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan
Pages	2670
Number of pages	1
Volume	54
Edition	2
Publication status	Published - 2005
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: Sep 20 2005 → Sep 22 2005

Other

Other	54th SPSJ Symposium on Macromolecules
Country	Japan
City	Yamagata
Period	9/20/05 → 9/22/05

All Science Journal Classification (ASJC) codes

Engineering(all)

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Otsuka, H., Kobashi, Y., Muta, T., & Takahara, A. (2005). Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation. In 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan (2 ed., Vol. 54, pp. 2670)

Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation. / Otsuka, Hideyuki; Kobashi, Yasuharu; Muta, Takatoshi; Takahara, Atsushi.

54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. Vol. 54 2. ed. 2005. p. 2670.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - In this study, macromolecular crossover reaction of disulfide-containing polymers was investigated. The reaction proceeded in the presence of radical generators such as benzoyl peroxide at 80°C in anisole. The fractionated polymer with narrow molecular weight distribution reorganized to the polydispersed polymer due to the chain transfer reaction, but no decomposition of repeating units was observed during the reaction. The number average molecular weight slightly decreased after the reaction because catalytic amount of free-radical generators gave terminal groups of the polymer chains. The photoinduced macromolecular crossover reaction of disulfide-containing polyester and polyurethane was successfully carried out in tetrahydrofuran to afford the corresponding scrambled polymer.

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