The lower crystallinity of PUBNC-
1 is ascribed to the presence of solvent residue (as for
comparative study solvent was used as dispersant in all the studied
samples), which may hinder the formation of inter- and intramolecular
hydrogen bonds PUBNC-1 and result in less packing. It
has been previously reported in the literature that same applied
concentration of chitin has significantly change the crystalinity of
the studied samples (Zia, Bhatti, Barikani, Zuber, & Sheikh,
2008c).