Title
Synthesis and Characterization of Star-Branched Ionomers Composed of Sulfonated Polystyrene Outer Blocks and Elastomeric Inner Blocks
Document Type
Article
Publication Date
7-21-1989
Department
Polymers and High Performance Materials
Abstract
Star-branched ionomers composed of short sulfonated polystyrene outer blocks and hydrogenated butadiene or isoprene inner blocks, with narrow molecular weight distributions (13C and 1H NMR and FT-IR revealed > 99% hydrogenation using p-toluene sulfonyl hydrazide in refluxing toluene. Titration of the sulfonic acid groups revealed > 85% sulfonation of the styrene units by acetyl sulfate in methylene chloride. Characterization of the final product and the various intermediates was carried out by GPC, DSC, FT-IR, and 13C NMR. A summary of the developmental work leading to these new materials is presented.
Publication Title
ACS Symposium Series
Volume
395
First Page
330
Last Page
352
Recommended Citation
Storey, R. F.,
George, S. E.
(1989). Synthesis and Characterization of Star-Branched Ionomers Composed of Sulfonated Polystyrene Outer Blocks and Elastomeric Inner Blocks. ACS Symposium Series, 395, 330-352.
Available at: https://aquila.usm.edu/fac_pubs/16101