I found this on
New Scientist; Spies and soldiers might soon be able to go behind enemy lines using a parachute or glider made from a polymer that vanishes on exposure to sunlight.
The idea was that these sensors could be spread across a battlefield, say, and used to collect information for the army. “But you don’t want anyone to discover it and take it apart and see how it works,” says Kohl.
That’s why he and his team wanted to invent a self-destructing material. They began with polymers that have a low ceiling temperature, which is the point at which the key bonds holding the substance together begin to break.
Lots of polymers break down slowly when they reach this temperature because many bonds have to be broken. But Kohl designed his material so that as soon as one bond breaks the whole thing rapidly unzips.
Those of you who have read
Strike Dog will remember the scene where the drop sleds are deployed and what happens after they land. So it was cool to see an article describing this tech.
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