Yield and solubility of DCS, as-synthesized 4-hydroxy benzohydrazide-based biopolymer/O-carboxymethyl chitosan Schiff bases and their Cu(ii) complexes.

Name of the compound/ligand/complex	Soluble in (solvent)	Reactant (g)	Yield (g)	Yield (%)
Deacetylated chitosan (DCS)	Mineral and organic acids	5	4.864	97.28
(SB1)	Water	2.16	1.64	75.92
(SB2)	Water	2.18	1.62	74.77
[(SB1)–Cu(OAc)2]	DMSO, DMF	0.80	0.43	53.75
[(SB2)–Cu(OAc)2]	DMSO, DMF	0.80	0.46	57.50