Studies in Mesoporous Silicates: Impedance Measurements on SBA-15 Loaded with Sulfonated-Polystyrene and Nafion with SBA-15 Filler

2006 ◽  
pp. 2033-2038
Author(s):  
Jon D. Stockton ◽  
Joseph F. Lomax ◽  
Charles A. Edmondson ◽  
John J. Fontanella ◽  
Mary C. Wintersgill
Keyword(s):  
Sulfonated Polystyrene ◽  
Mesoporous Silicates ◽  
Impedance Measurements

Studies in Mesoporous Silicates: Impedance Measurements on SBA-15 Loaded with Sulfonated-Polystyrene and Nafion with SBA-15 Filler

2006 ◽  
Vol 45 ◽  
pp. 2033-2038
Author(s):  
Jon D. Stockton ◽  
Joseph F. Lomax ◽  
Charles A. Edmondson ◽  
John J. Fontanella ◽  
Mary C. Wintersgill
Keyword(s):  
Sulfuric Acid ◽  
Mesoporous Silica ◽  
Complex Impedance ◽  
Cross Linking ◽  
Sulfonated Polystyrene ◽  
Impedance Measurements ◽  
Cast Films ◽  
Mesoporous Solids ◽  
Benzene Rings ◽  
Inorganic Composite

An organic-inorganic composite was formed by cross-linking polystyrene (PS) into a SBA-15-type mesoporous silica (SBA/PS). The SBA-15/PS reacted with sulfuric acid according to published methods to sulfonate the benzene rings of the styrene (SBA-15/PS/SO3). These two latter solids were investigated by TGA/MS to determine stability and decomposition mechanisms. Complex impedance measurements at 10-105 Hz were taken on (SBA-15/PS/SO3) and Nafion cast films loaded with SBA-15 at a level of 1-10%, and similar films with SBA-15/PS/SO3 in hopes that the mesoporous solids might impart desirable properties on the Nafion.

INFLUENCE OF AMBIENT TEMPERATURE ON CENTRAL AND PERIPHERAL IMPEDANCE MEASUREMENTS OF THE HUMAN BODY

2011 ◽  
Vol 10 (4) ◽  
pp. 511-517 ◽  
Author(s):  
Calin Corciova ◽  
Radu Ciorap ◽  
Dan Zaharia ◽  
Alexandru Salceanu
Keyword(s):  
Ambient Temperature ◽  
Human Body ◽  
Impedance Measurements
Sign in / Sign up

Export Citation Format

Share Document