A Thermally Re-mendable Cross-Linked Polymeric Material-Reference-Cited by-同舟云学术

A Thermally Re-mendable Cross-Linked Polymeric Material

Published:2002-03 Issue:5560 Volume:295 Page:1698-1702
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Chen Xiangxu¹,Dam Matheus A.¹,Ono Kanji²,Mal Ajit³,Shen Hongbin⁴,Nutt Steven R.⁴,Sheran Kevin¹,Wudl Fred¹

Affiliation:

1. Exotic Materials Institute and Department of Chemistry and Biochemistry,

2. Department of Materials Science and Engineering,

3. Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA.

4. Department of Materials Science, University of Southern California, Los Angeles, CA 90089, USA.

Abstract

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 120°C, 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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