Insertion Metathesis Depolymerization of Aromatic Disulfide-containing Dynamic Covalent Polymers under Weak Intensity Photoirradiation

被引：30

作者：

Ohishi, Tomoyuki ^{[1
]}

Iki, Yoko ^{[2
]}

Imato, Keiichi ^{[1
,2
]}

Higaki, Yuji ^{[3
]}

Takahara, Atsushi ^{[2
,3
]}

Otsuka, Hideyuki ^{[1
,2
]}

机构：

[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528550, Japan

[2] Kyushu Univ, Grad Sch Engn, Nishi Ku, Fukuoka 8190395, Japan

[3] Kyushu Univ, Inst Mat Chem & Engn, Nishi Ku, Fukuoka 8190395, Japan

来源：

CHEMISTRY LETTERS | 2013年 / 42卷 / 11期

关键词：

INTERCHANGE REACTION; ROOM-TEMPERATURE; EXCHANGE; CHEMISTRY; HYDROGELS; BONDS;

D O I：

10.1246/cl.130639

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aromatic disulfide bonds become dynamic in a radical process under weak intensity photoirradiation and can undergo metathesis. Aryl disulfide-containing dynamic covalent polyurethanes were prepared by the polyaddition of disulfide-containing diol and diisocyanate compounds. To determine the dynamic nature of the aryl disulfide-containing polymers, insertion metathesis depolymerization was performed under weak intensity photoirradiation at room temperature. The molecular weights of the dynamic covalent polymers decreased as the irradiation time increased.

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页码：1346 / 1348

页数：3

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