Infrared Spectra and Structure of Poly(Vinylalcohol) Films Obtained From Aqueous Solutions with Potassium Iodide Additive

被引：3

作者：

Sushko, N. I. ^{[1
]}

Zagorskaya, S. A. ^{[1
]}

Tretinnikov, O. N. ^{[1
]}

机构：

[1] Natl Acad Sci Belarus, BI Stepanov Phys Inst, Minsk 220072, BELARUS

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2013年 / 80卷 / 05期

关键词：

IR spectroscopy; poly(vinylalcohol); crystallinity; H-bonds; potassium iodide; WATER; IONS; DYNAMICS;

D O I：

10.1007/s10812-013-9826-0

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The crystallinity and H-bonds in poly(vinylalcohol) films obtained from aqueous solutions with potassium iodide additive were investigated by IR spectroscopy. It was established that addition of KI caused the degree of polymer crystallinity to increase. The band of hydroxyl stretching vibrations (nu(OH)) shifted toward higher frequency in spectra of films with KI additive. This indicated a change in the system of H-bonds in the polymer. The dependences of both the degree of crystallinity and the shift of the nu(OH) band on the salt concentration were qualitatively different in shape.

引用

页码：677 / 680

页数：4

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