Synthesis of Sulfonated
Patent 5,637,758, Liquid Detergent Compositions Comprising Salts of Alpha Sulfonated
Fatty Acid Fsters and Anionic Surfactants, Jun.
The chemicals used for the sulfonation and preparation of the sulfonated
sPS (SsPS) membranes are (a) chlorosulphonic acid ([CISO.
polyaniline presented one redox pair and polyaniline doped with TSA displayed a double redox couple.
For the sulfonation of PEEK with a large excess of concentrated sulfuric acid, Shibuya and Porter [32, 33] reported that the kinetics of the reaction is first order in the concentration of the PEEK chain repeat unit and inversely proportional to the concentration of the sulfonated
This phenomenon is similar to results observed by Beck Tan and co-workers with sulfonated
polystyrene/poly(2-vinylpyridine) blends (38) and is currently under further investigation.
m,co] of 147[degrees]C was found, indicating that the equilibrium melting temperature regularly decreases with increasing sulfonated
unit content ([T.
Time-resolved light scattering and wide angle X-ray diffraction studies were performed in this study to investigate how the sulfonated
EPDM ionomer affects the 0crystallization behavior of PP-g-MAH.
m]'s for the sulfonated
polyester/N66 blends significantly decreased with increasing ionomer content.
3]H groups, a following crosslinking reaction between the molecules of the sulfonated
product can occur, adding more complexity to the assumed reaction scheme (Scheme 5).
The concentration of sulfonic acid groups in sulfonated
PS-PIB-PS was determined as follows: To a tared 250 ml Erlenmeyer flask equipped with a magnetic stir-bar were charged 2 g of sulfonated
block copolymer in 100 ml THF and a few drops of phloxine B solution in ethanol.
Melts of many ionomer blends are subject to specific interactions; for example, sulfonated
polystyrene/ethyl acrylate-4-vinyl pyridine copolymers were investigated by Bazuin and Eisenberg (15).