Abstract
Dynamic mechanical measurements are reported on two polyethylene copolymers with different types of comonomers and well-characterized comonomer distributions. Measurements on both isotropic and oriented samples were undertaken over a wide frequency range. The mechanical anisotropy and activation energies of the α and β relaxations are consistent with the former relating to c-shear in the crystals, and the latter to interlamellar shear.
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Schedule a callMore From: Journal of Polymer Science Part B: Polymer Physics
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