Premium
Cationic starch iodophores
Author(s) -
Bendoraitiene Joana,
Sarkinas Antanas,
Pavelas Danilovas Paulius,
Rutkaite Ramune,
Klimaviciute Rima,
Zemaitaitis Algirdas
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38657
Subject(s) - cationic polymerization , iodide , iodine , chemistry , starch , ammonium iodide , aqueous solution , chloride , polymer chemistry , ammonium chloride , nuclear chemistry , inorganic chemistry , organic chemistry
Cross‐linked cationic starches N ‐(2‐hydroxyl)propyl‐3‐trimethyl ammonium starch chloride (CQS chloride), N ‐(2‐hydroxyl)propyl‐3‐trimethyl ammonium starch iodide (CQS iodide), and N ‐(2‐hydroxyl)propyl‐3‐trimethyl ammonium starch iodide–iodine (CQS triiodide) with the degree of substitution (DS) according to cationic groups from 0.04 to 0.62, as well as cross‐linked starch–iodine complexes were synthesized and tested as potential antibacterial agents. Cationic starch iodine derivatives were obtained during ion exchange reaction between CQS chloride and iodide or iodide–iodine anions in aqueous solutions. CQS DS≤0.3 chloride can form several types of iodine complexes, such as the blue amylose–iodine inclusion complex and ionic CQS + I − ·(I 2 ) m complex ( m ≥ 1). The antibacterial activity of modified starches–iodine samples against different pathogenic bacterial cultures and contaminated water microorganisms was evaluated. CQS chloride and CQS iodide were found to be bacteriostatic. A strong antibacterial activity was characteristic of CQS triiodides in which molecular iodine is present in both ionic and inclusion complexes. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013