Polystyrene, Warm and Cool
JUL 01, 1950
DOI: 10.1063/1.3066946
This investigation represents an attempt to understand why noncrystalline rubber‐like polymers suddenly lose their flexibility and become brittle when cooled to a particular temperature, and conversely why an amorphous plastic such as polystyrene when heated to a particular temperature suddenly becomes either flexible and rubbery or fluid.
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© 1950 American Institute of Physics
