Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

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Sub Image2:Macro to Micro Structures
1) Atoms and Molecules2) Macro to Micro Structures 3) Energetics and Dynamics 4) Theory and Practice in Chemical Systems 5) Chemical Design
6) The Chemistry of Life7) Chemistry and the Environment8) Chemistry at the Interface

Unit 5.1 Minidoc: Self-Healing Materials
Self-healing materials use advanced chemical mechanisms in order to reduce microscopic damage in case of fracture. Modern chemistry research and development enable the design of these materials. Video program cues: 0:30-4:15

The breakability of matter


Self-healing materials

"I have seen experiments done by the group at Virginia Tech, where they are taking sheets of this ionomer and shooting bullets through it and a bullet makes a hole, but the hole instantly heals. That’s a very interesting case, because what the bullet does, it tends to fluidize the polymer sheet locally where the bullet hole was, but at the same time you have a large number of metal ions which tend to cluster together again…and it instantaneously heals."

Dr. Richard Wool
Professor of Chemical Engineering, University of Delaware


Steve, S. (2001)' Plastic Mends Its Own Cracks, 'Chemical & Engineering News, Vol. 79, No. 8, pp: 13.

Healing microscopic fractures


Heinhorst, S.; Cannon, G. (2002)' Nature: Self-Healing Polymers and Other Improved Materials, 'Journal of Chemical Education, Vol. 79, No. 1, pp: 10-11.

Proceed to Unit 5.2 arrow

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