Now showing items 1-6 of 6
Sulfonated fluoroblock copolymer membranes for direct methanol fuel cell applications
This investigation studied the transport properties of several fluorinated sulfonated membranes for direct methanol fuel cell applications. First, Nafion® membranes were processed with supercritical fluid (SCF) CO2 and ...
Reverse micelles in supercritical carbon dioxide for pharmacological applications: a spectroscopic characterization
The aim of this research is to characterize microemulsions in supercritical (sc) CO2 using two spectroscopic techniques (UV-Vis and FT-IR) and apply the microemulsion approach to extract impurities from a pharmacological ...
Transport properties of proton-exchange membranes: effect of supercritical-fluid processing and chemical functionality
Nafion® membranes commonly used in direct methanol fuel cells (DMFC), are tipically limited by high methanol permeability (also known as the cross-over limitation). These membranes have phase segregated sulfonated ionic ...
Novel sulfonated ether based block copolymer ionomers as proton exchange membranes for fuel cells applications
This investigation studied the morphology, hydration, and transport properties of different membranes for direct methanol fuel cell (DMFC) applications. First, sulfonated poly(ether ether ketone) (SPEEK) membranes were ...
Functionalization and characterization of Sulfonated Poly (Styrene-Isobutylene-Styrene) membranes for fuel cells and specialty separation applications
In this study, the transport properties of poly(styrene-isobutylene-styrene) (SIBS) block copolymer were determined as a function of sulfonation level (0-94.9 %), counter ion substitution (Ba+2, Ca+2, Mg+2, Mn+2, Cu+2, ...
Poly(styrene-isobutylene-styrene) nanocomposite membranes for fuel cell devices and specialty separation applications
Ionic domains were incorporate into sulfonated poly(styrene–isobutylene–styrene) (SO3H SIBS) in an effort to improve the transport properties of the functionalized aromatic block copolymer. The resulting polymer nanocomposite ...