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Wednesday, 18 September 2019
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Raw materials & technologies, Science today - coatings tomorrow

Developing high performance self-healing polymers

Monday, 11 March 2013

A review article of Taiwan scientists studies recent publications on self-healing polymeric materials with thermally reversible Diels-Alder chemistry.

A review article includes recent publications on self-healing polymeric materials / Source: Maren Beßler, Pixelio

A review article includes recent publications on self-healing polymeric materials / Source: Maren Beßler, Pixelio

The Diels-Alder (DA) reaction is a cycloaddition involving a diene and a dienophile. The self-healing polymers employing the furan group as a diene and the maleimide group as a dienophile have been studied. Multifunctional furan and maleimide compounds construct thermally reversible crosslinked networks showing removability and remendability.

Self-healing materials have been utilized as healing agents for conventional thermosets like epoxy resins. Other diene-dienophile pairs, such as anthracene-maleimide and cyclopentadiene-dicyclopentadiene, have also been studied for the development of thermally induced self-healing materials. Photo-induced self-healing polymers and some novel applications based on DA reactions have been discussed in this review.

The researchers also discussed self-healing polymer systems based on other thermally triggered and assisted reactions. According to the authors, this publication has provided promising molecular designs and synthetic strategies for the development of high performance self-healing polymers.

The article "Self-healing polymers based on thermally reversible Diels-Alder chemistry” by Ying-Ling Liu and Tsai-Wei Chuo appeared in Polymer Chemistry, 2013, issue 7, pp. 2194-2205.

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