= Andrew Keller
{c}
{tag=Physicist}
= A. Keller
{c}
{synonym}
An experimental <physicist> who investigated how long <polymer> chains organize into crystals. Studies of thin, plate-like polymer crystals led him to the mechanism of chain folding: a long molecule can turn back repeatedly rather than extend through the entire specimen. The finding connected microscopic chain arrangement with crystal shape and helped establish the structural basis of polymer physics.<Professional profile of Andrew Keller>[Bristol school history: lamellar crystals, morphology and discovery of chain folding]{ref}
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