SEM and TEM micrographs of gel extracted from organic solvent
revealed the fibril network of chloro and bromo substitutes which
their diameters are in the range of 7-216 nm and length higher
than 9 m. This result is similar to the morphology of DBS in
polymers by using transmission electron microscopy discovered
by Wilder and co-workers [3,4] It was found that the DBS
molecule can form highly connected networks, with nanofibrils
measure from 10 to 70 nm in diameter and length are up to 500
nm. In the fiber preparation process, the polymer melt was
extruded through a small die with flow field. The morphology of
PP as spun fiber has been investigated. Nogales et al.