TY - JOUR
T1 - Amylose-iodine complex formation without KI
T2 - Evidence for absence of iodide ions within the complex
AU - Calabrese, Vincent T.
AU - Khan, Arshad
PY - 1999/8/1
Y1 - 1999/8/1
N2 - Amylose-iodine (AI) complex has been synthesized in aqueous solution without added KI. Complex formation (with solid iodine in amylose solution) is maximized at approximately 35 °C and decreases beyond that temperature. Ion-selective electrode (ISE) measurements of an aqueous solution of iodine and AI complex indicate that there is no change in the I- ion concentration when the complex forms. This suggests that I- ions (including I3-, I5-, and others) cannot be involved in forming the AI complex. The present work also reports a new and simple method for providing both the iodine-binding capacity (IBC) of amylose and the dissociation mechanism for the AI complex.
AB - Amylose-iodine (AI) complex has been synthesized in aqueous solution without added KI. Complex formation (with solid iodine in amylose solution) is maximized at approximately 35 °C and decreases beyond that temperature. Ion-selective electrode (ISE) measurements of an aqueous solution of iodine and AI complex indicate that there is no change in the I- ion concentration when the complex forms. This suggests that I- ions (including I3-, I5-, and others) cannot be involved in forming the AI complex. The present work also reports a new and simple method for providing both the iodine-binding capacity (IBC) of amylose and the dissociation mechanism for the AI complex.
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U2 - 10.1002/(SICI)1099-0518(19990801)37:15<2711::AID-POLA4>3.0.CO;2-6
DO - 10.1002/(SICI)1099-0518(19990801)37:15<2711::AID-POLA4>3.0.CO;2-6
M3 - Article
AN - SCOPUS:0032675122
SN - 0887-624X
VL - 37
SP - 2711
EP - 2717
JO - Journal of Polymer Science, Part A: Polymer Chemistry
JF - Journal of Polymer Science, Part A: Polymer Chemistry
IS - 15
ER -