Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/94859
Title: Spectroscopic studies of interactions in complexes of poly(1-vinylimidazole) with poly(styrenesulfonic acid) or the zinc salt of poly(styrenesulfonate)
Authors: Luo, X.
Goh, S.H. 
Lee, S.Y. 
Huan, C.H.A. 
Issue Date: Apr-1999
Source: Luo, X.,Goh, S.H.,Lee, S.Y.,Huan, C.H.A. (1999-04). Spectroscopic studies of interactions in complexes of poly(1-vinylimidazole) with poly(styrenesulfonic acid) or the zinc salt of poly(styrenesulfonate). Macromolecular Chemistry and Physics 200 (4) : 874-880. ScholarBank@NUS Repository.
Abstract: Poly(1-vinylimidazole) (PVI) forms complexes with poly(styrenesulfonic acid) and the zinc salt of poly(styrenesulfonate) (PSSA and PSSZn, respectively) in water/ethanol (2:1 v/v) solution, indicating the presence of strong interactions. Infrared spectroscopic measurements showed the existence of protonated imidazole groups in all the complexes. X-ray photoelectron spectroscopic studies showed the development of high-binding-energy N(1) 1s and N(3) 1s peaks, but the values of the binding energy shift of N(3) 1s are larger than those of N(1) 1s in all PVI/PSSA and PVI/PSSZn complexes, suggesting proton transfer from PSSA to imidazole N(3) atoms in the PVI/PSSA complexes, and coordination between Zn2+ and the imidazole N(3) atoms in the PVI/PSSZn complexes. Based on the values of the binding energy shift of the interacting nitrogen atoms, the strength of the coordination interaction in PVI/PSSZn complexes is weaker than the ionic interactions in the PVI/PSSA complexes. The development of a new S 2p spin-orbit split doublet at a low-binding-energy region reveals the existence of interactions between Zn2+ and the imidazole nitrogen atoms. © Wiley-VCH Verlag GmbH, 1999.
Source Title: Macromolecular Chemistry and Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/94859
ISSN: 10221352
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

24
checked on Feb 17, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.