Room Temperature Self-Healing Methyl Phenyl Silicone Rubbers Based on the Metal-Ligand Cross-Link: Synthesis and Characterization

被引：28

作者：

Yu, Dajiang ^{[1
]}

Zhao, Xinxin ^{[1
]}

Zhou, Chuanjian ^{[1
]}

Zhang, Chen ^{[1
]}

Zhao, Shigui ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Key Lab Special Funct Aggregated Mat, Minist Educ, Jinan 250100, Peoples R China

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2017年 / 218卷 / 08期

关键词：

Schiff-base; self-healing; silicone rubbers; POLYMERS; COMPLEXES;

D O I：

10.1002/macp.201600519

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Novel self-healing silicone rubbers are prepared by a two-step procedure: aminopropyl methyl phenyl polysiloxanes is first reacted with salicylaldehyde and then with copper acetate. The reversible nature of the metal-ligand coordination interaction between polysiloxanes with pendent Schiff-base groups and Cu2+ has endowed silicone rubbers with superior self-healing properties. As compared with other self-healing silicone rubbers based on hydrogen bonds or Diels-Alder reaction, this cross-linked system shows high healing power. The materials are cut into two parts and put together in a mold for 1 h at 30 degrees C, observing a macroscopic healing and a strength recovery up to 87.0%.

引用

页数：6

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