Macromolecular Research

The Polymer Society of Korea (한국고분자학회)
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Characterization of Poly(vinyl phosphate-b-styrene) by Solid-State $^{31}P$ NMR and Titration

  • Li, Guang-Hua (Center for Advanced Functional Polymers, Department of Fiber & Polymer Engineering, Hanyang University) ;
  • Kim, Sang-Hun (Center for Advanced Functional Polymers, Department of Fiber & Polymer Engineering, Hanyang University) ;
  • Cho, Chang-Gi (Center for Advanced Functional Polymers, Department of Fiber & Polymer Engineering, Hanyang University) ;
  • Park, Tae-Joon (Department of Chemistry, Hankuk University of Foreign Studies) ;
  • Kim, Yong-Ae (Department of Chemistry, Hankuk University of Foreign Studies)
  • Published : 2006.10.31
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Abstract

Poly(vinyl phosphate-b-styrene) (PVPP-b-PS) block copolymers were synthesized successfully from poly(vinyl alcohol-b-styrene) (PVA-b-PS) by reaction with phosphorus oxychloride and subsequent hydrolysis. The obtained block copolymers were slightly crosslinked, and were characterized by various analytical techniques. The total phosphorus content and the ratio of the differently bound phosphorus were obtained by both solid-state $^{31}P$ NMR and pH titration, but the results differed slightly. Characterization by energy dispersion X-ray analysis (EDS) or Rutherford back scattering (RBS), on the other hand, determined the total phosphorus contents, but the results were quite different from those by solid-state $^{31}P$ NMR.

Keywords

References

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