CHENG Chuan-xuan, ZHUANG Jin-shu, SU Ying-cao. THE COORDINATION CROSS-LINKAGE REACTION BETWEEN PVA IN STRONG BASIC AQUEOUS SOLUTION WITH Fe(III) ION[J]. Acta Polymerica Sinica, 1993,(2):144-150.
CHENG Chuan-xuan, ZHUANG Jin-shu, SU Ying-cao. THE COORDINATION CROSS-LINKAGE REACTION BETWEEN PVA IN STRONG BASIC AQUEOUS SOLUTION WITH Fe(III) ION[J]. Acta Polymerica Sinica, 1993,(2):144-150.DOI:
The reddish brown resinoid substance was separated out
when 1×10-4kg of FeCl36H2O was added slowly to 1×10-4m3 of 5% PVA basic (pH>13) aqueous solution with stirring. Its composition and forming process was studied by XPS
IR and ESR
etc. It follows that the de-protonic reaction of hydroxide group for PVA had taken place in above solution
and the coordination group for deprotonic oxygen of PVA had produced more. These ligands interact with some Fe3+ of ferric hydroxide while the ferric hydroxide in new emergence is forming
causing the formation of Fe (III)-PVA coordination polymer-the composition of the reddish brown resinoid substance.