Fast molecular rearrangements hold key to plastic's toughness

(PhysOrg.com) -- Plastics are everywhere in our modern world, largely due to properties that render the materials tough and durable, but lightweight and easily workable. One of their most useful qualities, however - the ability to bend rather than break when put under stress - is also one of the most puzzling.

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<p><a href="http://www.physorg.com/news147015104.html">Fast molecular rearrangements hold key to plastic's toughness</a></p> <p>(PhysOrg.com) -- Plastics are everywhere in our modern world, largely due to properties that render the materials tough and durable, but lightweight and easily workable. One of their most useful qualities, however - the ability to bend rather than break when put under stress - is also one of the most puzzling.</p>