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Figure 2
(a) Rotational freedom of chemical bonds under the fixed valence angle θv, (b) a snapshot of the chain configuration in the amorphous phase, (c) chains in the crystal lattice and (d) the chain-folded lamellar crystal in polyethylene used for this study.

IUCrJ
Volume 2| Part 1| January 2015| Pages 59-73
ISSN: 2052-2525
doi:10.1107/S205225251402288X