Rapid microanalytical chlorine determination in polymers by ion selective electrode
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A rapid microanalytical method has been developed for the determination of very small amounts of chlorine in polymers. The gist of the method comprises quantitative dechlorination by sodium biphenyl or dehydrochlorination bytert-BuOK, aqueous extraction of the Cl⊖ formed, followed by [Cl⊖] quantitation by chloride ion selective electrode (CSE). The method has been tested and is now used routinely for chlorine end group quantitation of telechelic polyisobutylene (PIB), poly(2,4,6-trimethylstyrene) (PTMSt), and poly(p-chlorostyrene) (PpClSt).
KeywordsSodium Polymer Chloride Chlorine Biphenyl
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- 1.J. P. Kennedy and R. A. Smith, J. Polym. Sci., Polym. Chem. Ed.18, 1523 (1980)Google Scholar
- 2.R. Faust and J. P. Kennedy, J. Polym. Sci., Polym. Chem. Ed.15, 1847 (1987)Google Scholar
- 3.M. K. Mishra and J. P. Kennedy, J. Macromol. Sci. Chem.A24(8), 933 (1987)Google Scholar
- 4.J. P. Kennedy, V.S.C. Chang, R. A. Smith and B. Iván, Polym. Bull,1, 575 (1979)Google Scholar
- 5.R. Faust and J. P. Kennedy, Polym. Bull.19, 35 (1988)Google Scholar
- 6.M. Zsuga and J. P. Kennedy, Polym. Bull. in pressGoogle Scholar
- 7.B. Iván and J. P. Kennedy, to be publishedGoogle Scholar
- 8.M. Zsuga, R. Faust and J. P. Kennedy, Polym. Bull., see this issueGoogle Scholar
- 9.L. M. Liggett, Anal. Chem.26(4), 748 (1954)Google Scholar
- 10.J. D. Carter, Ph.D. thesis, The University of Akron (1988)Google Scholar
- 11.OMEGA Engineering, Inc. Cat. 1987Google Scholar