A Novel De-Cross-Linking System from Cross-Linked Polymer to Linear Polymer Utilizing Pressure or Visible Light Irradiation

被引：33
|
作者：
Iwamura, Takeru [1 ]
Sakaguchi, Masato [1 ]
机构：
[1] Univ Shizuoka, Inst Environm Sci, Suruga Ku, Shizuoka 4228526, Japan
来源：
MACROMOLECULES | 2008年 / 41卷 / 23期
关键词：
D O I：
10.1021/ma801298e
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A monomer having a 2,4,5-triphenylimidazole moiety was prepared by the reaction of benzoin and 3-vinylbenzaldehyde with ammonium acetate and 1-butylimidazolium tetrafluoroborate in moderate yield. The radical copolymerization of the obtained monomer and MMA were carried out at 60 degrees C for 24 h by using AIBN (5 mol %) as an initiator to give a copolymer in good yield. The cross-linking reaction of the obtained copolymer proceeded with K(3)[Fe(CN)(6)] and KOH. The obtained cross-linked polymer was de-cross-linked by visible light or pressure. The signal of imidazolyl radical was detected by ESR spectroscopy. This signal showed that a linear polymer was generated.
引用
收藏
页码：8995 / 8999
页数：5
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