𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Properties of composite membranes from ion exchange membranes and conducting polymers—I. Conductivity of composite membrane from cation exchange membranes and polypyrrole

✍ Scribed by Toshikatsu Sata

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
806 KB
Volume
39
Category
Article
ISSN
0013-4686

No coin nor oath required. For personal study only.

✦ Synopsis

In order to prepare a free-standing polypyrrole hhn with high mechanical strength, Fe(II1) form or Cu(I1) form cation exchange membranes were immersed in an aqueous pyrrole solution. Polymerization speed of pyrrole in the Fe(II1) form membrane was faster than that in the Cu(I1) form membrane. A linear relationship was observed between conductivity of the composite membrane and immersion period in the pyrrole solution. Conductivity of the composite membrane from the Fe(II1) form membrane reached about 10e3 Scm-', which was the ultimate vahte of this method. Properties of formed polypyrrole in the membrane matrix was discussed in relation to weight increase of the membrane and species of oxidative cation. Burst strength of the composite membrane increased with increasing polymerization period of pyrrole.

📜 SIMILAR VOLUMES

Conductivity of ion-exchange membranes—I
Conductivity of ion-exchange membranes—II. Mobilities of ions and water
✍ Stanisa̵w Koter; Anna Narȩbska 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 310 KB

The mobilities of Na+, Cl-and OH-ions and water in Nation 120 membrane have been discussed. According to the frictional formalism they have been expressed in terms of friction coefficients describing single interactions between components of the system. The signiticant influence of the movement of w

Preparation, Proton Conductivity and Mec
Preparation, Proton Conductivity and Mechanical Properties of Nafion 117–Zirconium Phosphate Sulphophenylphosphonate Composite Membranes
✍ M. Casciola; D. Capitani; A. Donnadio; V. Frittella; M. Pica; M. Sganappa 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 143 KB

## Abstract Nafion–zirconium phosphate (ZrP) composite membranes, containing 20 to 40 wt.‐% ZrP were treated with aqueous solutions of meta‐sulphophenylphosphonic acid (H~2~SPP) in order to functionalise the filler particles with strongly acidic sulphonic groups. The functionalised samples (Nafion/

Influence of growth conditions on the co
Influence of growth conditions on the composition of the plasma membrane from yeast and on kinetic properties of two membrane functions
✍ Klaus Stadtlander; Sabine Rade; Jan Ahlers 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 748 KB

The influence of different growth conditions on the phospholipid composition and on two membrane functions, the Mg-ATPase and the purine transport system, was investigated. Addition of cholinechloride to the growth medium led to a certain rise in the amount of phosphatidylcholine, whereas supplement

Modification of transport properties of
Modification of transport properties of ion exchange membrane. XI. Electrodialytic properties of cation exchange membranes having polyethyleneimine layer fixed by acid–amide bonding
✍ Toshikatsu Sata; Ryuji Izuo 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 788 KB

## Abstract For the purpose of preparing the monovalent cation permselective membrane for electrodialysis, the membrane having—SO~2~Cl groups reacted with the polyethyleneimine to form a cationic polyelectrolyte layer on the membrane surface by using the acid–amide bonding. Reaction conditions, i.e