Polymer Engineering Faculty Research

Title

Sulfonation distribution in sulfonated polystyrene ionomers measured by MALDI-ToF MS

Document Type

Article

Publication Date

2-22-2013

Abstract

Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-ToF MS) was used to quantify the sulfonation level and sulfonation distribution of sulfonated polystyrene ionomers prepared by homogeneous solution sulfonation. The sulfonation levels obtained by MALDI-ToF MS and acid–base titration were compared, and the sulfonate distributions determined by MALDI-ToF MS were compared with theoretical random distributions. The results indicate that the sulfonation reaction used produces a sample with a random sulfonate distribution.

Publication Title

ACS Macro Letters

Volume

2

Issue

3

First Page

217

Last Page

221