Dissolved states of ionene polymers in water-acetone and their relation to the ionic partial molar adiabatic compressibility and volume |
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| Authors: | Fumio Kawaizumi Shinobu Koda Masahiro Kimura Hiroyasu Nomura |
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| Institution: | (1) Institute for Molecular Science, Myodaiji, 444 Okazaki, Japan;(2) Department of Chemical Engineering, School of Engineering, Nagoya University, Chikusa-ku, 464-01 Nagoya, Japan |
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| Abstract: | Solution properties of water-soluble synthetic polymer, 3,3-ionene and 6,6-ionene chloride and bromide disolved in water-acetone mixtures up to acetone content 50 wt% were investigated. Their partial molar volumes V
2
o
and partial molar adiabatic compressibilities K
s
o
were determined. Ionic additivity of V
2
o
with respect to the cation of backbone polymer chain and the counter-anion was confirmed quantitatively. The ionic additivity of V
2
o
is discussed along with the K
s
o
in their relation to the counterion binding of ionene polymers. Effects of ionic sites on the ionene are strong but they don't break the solvation layer. |
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| Keywords: | Ionene polymer partial molar volume partial molar adiabatic compressibility ion-binding water-acetone system |
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