packing of chain stems

https://doi.org/10.1351/goldbook.14224
Spatial arrangement of polymer chain stems in a polymer crystal.
Notes:
  1. Crystals require tridimensional translational periodicity in their packing.
  2. The mode of packing is influenced by the kinetics and thermodynamics of the crystallization process. In some cases, pre-existing structural organization and chain folding may also play a role.
Source:
PAC, 2011, 83, 1831. (Definitions of terms relating to crystalline polymers (IUPAC Recommendations 2011)) on page 1846 [Terms] [Paper]