Permeability of ionic solutes in a polyamphoteric membrane

Hideto Matsuyama, Takashi Tamura, Yoshiro Kitamura

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A polyamphoteric gel membrane with both amino and carboxyl groups was prepared from N-succinyl chitosan and poly(vinyl alcohol). The permeabilities of three kinds of solute with similar sizes and different charged conditions, i.e. anionic benzenesulfonic acid, neutral styrene glycol and cationic theophylline, through the polyamphoteric membrane were investigated in various pH conditions. The permeability of benzenesulfonic acid decreased with increasing pH. This behavior can be explained by the change of the electrostatic interaction between the solute and the polyamphoteric membrane brought about by the change of the membrane charged condition. At pH 3.0 the benzenesulfonic acid showed a large permeability due to the attractive interaction with the cationic membrane, whereas theophylline showed a low value due to the repulsive interaction. Thus, an effective separation among the three solutes was achieved in spite of the similar sizes, which was in contrast to the result that almost the same permeabilities were obtained with a poly(vinyl alcohol) membrane based on only the size exclusion effect. At pH 11.0 the polyamphoteric membrane changed to being anionic and lead to benzenesulfonic acid having the lowest permeability among the three solutes. The partition coefficients were measured for the three solutes in various pH conditions. The tendency obtained was similar to that of the permeability.

Original languageEnglish
Pages (from-to)181-187
Number of pages7
JournalSeparation and Purification Technology
Volume16
Issue number2
Publication statusPublished - Jul 12 1999

Fingerprint

Membranes
Acids
Theophylline
Alcohols
Coulomb interactions
Glycols
Chitosan
Styrene
Gels
benzenesulfonic acid

Keywords

  • Electrostatic interaction
  • N-Succinyl chitosan
  • Partition coefficient
  • Poly(vinyl alcohol)
  • Polyamphoteric membrane

ASJC Scopus subject areas

  • Filtration and Separation

Cite this

Permeability of ionic solutes in a polyamphoteric membrane. / Matsuyama, Hideto; Tamura, Takashi; Kitamura, Yoshiro.

In: Separation and Purification Technology, Vol. 16, No. 2, 12.07.1999, p. 181-187.

Research output: Contribution to journalArticle

Matsuyama, Hideto ; Tamura, Takashi ; Kitamura, Yoshiro. / Permeability of ionic solutes in a polyamphoteric membrane. In: Separation and Purification Technology. 1999 ; Vol. 16, No. 2. pp. 181-187.
@article{c5cae95504aa455289c37704d450f911,
title = "Permeability of ionic solutes in a polyamphoteric membrane",
abstract = "A polyamphoteric gel membrane with both amino and carboxyl groups was prepared from N-succinyl chitosan and poly(vinyl alcohol). The permeabilities of three kinds of solute with similar sizes and different charged conditions, i.e. anionic benzenesulfonic acid, neutral styrene glycol and cationic theophylline, through the polyamphoteric membrane were investigated in various pH conditions. The permeability of benzenesulfonic acid decreased with increasing pH. This behavior can be explained by the change of the electrostatic interaction between the solute and the polyamphoteric membrane brought about by the change of the membrane charged condition. At pH 3.0 the benzenesulfonic acid showed a large permeability due to the attractive interaction with the cationic membrane, whereas theophylline showed a low value due to the repulsive interaction. Thus, an effective separation among the three solutes was achieved in spite of the similar sizes, which was in contrast to the result that almost the same permeabilities were obtained with a poly(vinyl alcohol) membrane based on only the size exclusion effect. At pH 11.0 the polyamphoteric membrane changed to being anionic and lead to benzenesulfonic acid having the lowest permeability among the three solutes. The partition coefficients were measured for the three solutes in various pH conditions. The tendency obtained was similar to that of the permeability.",
keywords = "Electrostatic interaction, N-Succinyl chitosan, Partition coefficient, Poly(vinyl alcohol), Polyamphoteric membrane",
author = "Hideto Matsuyama and Takashi Tamura and Yoshiro Kitamura",
year = "1999",
month = "7",
day = "12",
language = "English",
volume = "16",
pages = "181--187",
journal = "Separation and Purification Technology",
issn = "1383-5866",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Permeability of ionic solutes in a polyamphoteric membrane

AU - Matsuyama, Hideto

AU - Tamura, Takashi

AU - Kitamura, Yoshiro

PY - 1999/7/12

Y1 - 1999/7/12

N2 - A polyamphoteric gel membrane with both amino and carboxyl groups was prepared from N-succinyl chitosan and poly(vinyl alcohol). The permeabilities of three kinds of solute with similar sizes and different charged conditions, i.e. anionic benzenesulfonic acid, neutral styrene glycol and cationic theophylline, through the polyamphoteric membrane were investigated in various pH conditions. The permeability of benzenesulfonic acid decreased with increasing pH. This behavior can be explained by the change of the electrostatic interaction between the solute and the polyamphoteric membrane brought about by the change of the membrane charged condition. At pH 3.0 the benzenesulfonic acid showed a large permeability due to the attractive interaction with the cationic membrane, whereas theophylline showed a low value due to the repulsive interaction. Thus, an effective separation among the three solutes was achieved in spite of the similar sizes, which was in contrast to the result that almost the same permeabilities were obtained with a poly(vinyl alcohol) membrane based on only the size exclusion effect. At pH 11.0 the polyamphoteric membrane changed to being anionic and lead to benzenesulfonic acid having the lowest permeability among the three solutes. The partition coefficients were measured for the three solutes in various pH conditions. The tendency obtained was similar to that of the permeability.

AB - A polyamphoteric gel membrane with both amino and carboxyl groups was prepared from N-succinyl chitosan and poly(vinyl alcohol). The permeabilities of three kinds of solute with similar sizes and different charged conditions, i.e. anionic benzenesulfonic acid, neutral styrene glycol and cationic theophylline, through the polyamphoteric membrane were investigated in various pH conditions. The permeability of benzenesulfonic acid decreased with increasing pH. This behavior can be explained by the change of the electrostatic interaction between the solute and the polyamphoteric membrane brought about by the change of the membrane charged condition. At pH 3.0 the benzenesulfonic acid showed a large permeability due to the attractive interaction with the cationic membrane, whereas theophylline showed a low value due to the repulsive interaction. Thus, an effective separation among the three solutes was achieved in spite of the similar sizes, which was in contrast to the result that almost the same permeabilities were obtained with a poly(vinyl alcohol) membrane based on only the size exclusion effect. At pH 11.0 the polyamphoteric membrane changed to being anionic and lead to benzenesulfonic acid having the lowest permeability among the three solutes. The partition coefficients were measured for the three solutes in various pH conditions. The tendency obtained was similar to that of the permeability.

KW - Electrostatic interaction

KW - N-Succinyl chitosan

KW - Partition coefficient

KW - Poly(vinyl alcohol)

KW - Polyamphoteric membrane

UR - http://www.scopus.com/inward/record.url?scp=0032632393&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032632393&partnerID=8YFLogxK

M3 - Article

VL - 16

SP - 181

EP - 187

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

IS - 2

ER -