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/Territory	Japan
City	Yamagata
Period	9/20/05 → 9/22/05

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation",

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.",

author = "Hideyuki Otsuka and Yasuharu Kobashi and Takatoshi Muta and Atsushi Takahara",

year = "2005",

language = "English",

volume = "54",

pages = "2670",

booktitle = "54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan",

edition = "2",

note = "54th SPSJ Symposium on Macromolecules ; Conference date: 20-09-2005 Through 22-09-2005",

}

TY - GEN

T1 - Macromolecular crossover reaction of disulfide containing polymers by free radical generator or upon photoirradiation

AU - Otsuka, Hideyuki

AU - Kobashi, Yasuharu

AU - Muta, Takatoshi

AU - Takahara, Atsushi

PY - 2005

Y1 - 2005

N2 - 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.

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.

UR - http://www.scopus.com/inward/record.url?scp=33645635583&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645635583&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33645635583

VL - 54

SP - 2670

BT - 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

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

Abstract

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All Science Journal Classification (ASJC) codes

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