Abstract
A MARKED disparity in strength in the longitudinal and transverse directions is a characteristic property of oriented crystalline polymers, and accounts for the readiness with which they can be split or cleaved in the longitudinal direction. We have recently observed a closely similar type of behaviour in a non-crystalline glassy polymer, namely ‘Perspex’.
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CURTIS, J., TRELOAR, L. Fracture of Oriented ‘Perspex’. Nature 220, 60–61 (1968). https://doi.org/10.1038/220060a0
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DOI: https://doi.org/10.1038/220060a0
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