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http://dx.doi.org/10.12925/jkocs.2018.35.4.1031

Influence of Surfactant on the Iodine Complex Formation of Some Non-ionic Polymers  

Ahn, Beom-Shu (Division of Life Science & Chemistry, Dae-Jin University)
Publication Information
Journal of the Korean Applied Science and Technology / v.35, no.4, 2018 , pp. 1031-1037 More about this Journal
Abstract
The formation of a complex between PVP or HPC and iodine was indicated by a red shift in the tri-iode band while PVA-iodine complex showed its characterized band around 500 nm in pure aqueous media. Addition of surfactant SDS resulted in a disapperance of the characteristic blue color of the PVA-iodine complex indicating that the complex is not formed in aqueous surfactant media. However in case of PVP or HPC, presence of the monomers of SDS favored the complex formation but in higher concentration, the micelles of SDS decreased the complex. Complexation was found to increase with increasing content of n-propanol in the system since n-propanol inhibits the formation of gels or microgels in the polymer solution. But in case of PVA-iodine complex, addition of n-propanol led to conversion of bigger polyiodides into smaller ones, which is indicative of increased intermolecular hydrogen bond interaction between propanol and PVA effecting a decrease in the PVA aggregate space.
Keywords
polymer complex; surfactant; iodine compound; gelation; uv spectrum;
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