A thermally re-mendable cross-linked polymeric material

被引：2217

作者：

Chen, XX

Dam, MA

Ono, K

Mal, A

Shen, HB

Nutt, SR

Sheran, K

Wudl, F

机构：

[1] Univ Calif Los Angeles, Exot Mat Inst, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[3] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[4] Univ Calif Los Angeles, Dept Mech & Aerosp Engn, Los Angeles, CA 90095 USA

[5] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

来源：

SCIENCE | 2002年 / 295卷 / 5560期

关键词：

D O I：

10.1126/science.1065879

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We have developed a transparent organic polymeric material that can repeatedly mend or "re-mend" itself under mild conditions. The material is a tough solid at room temperature and below with mechanical properties equaling those of commercial epoxy resins. At temperatures above 120degreesC, approximately 30% (as determined by solid-state nuclear magnetic resonance spectroscopy) of "intermonomer" linkages disconnect but then reconnect upon cooling, This process is fully reversible and can be used to restore a fractured part of the polymer multiple times, and it does not require additional ingredients such as a catalyst, additional monomer, or special surface treatment of the fractured interface.

引用

页码：1698 / 1702

页数：5

共 32 条

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