HPLC analysis of cyclic polystyrenes

Donghyun Cho, Daisuke Kawaguchi, Atsushi Takano, Yushu Matsushita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cyclic polystyrenes with various molecular weight were prepared by the reaction of linear polystyrene having two end vinyl groups and potassium naphthalenide as a coupling agent Intermolecular side reactions produced higher molecular weight polycondensates and undesirable chain termination reactions also produced linear precursors in addition to the designed molecules. In order to isolate cyclic polymers from the ring closure reaction mixtures, preparative size exclusion chromatography (SEC) method was employed. The purity of SEC-fractionated cyclic polystyrenes was rigorously examined by liquid chromatography at the critical condition (LCCC). After SEC-fractionation, we obtained large amount of highly pure cyclic polymers, though high molecular weight cyclic polymers contain very small amount of linear precursor (< 5%).

Original languageEnglish
Title of host publication54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan
Pages3553
Number of pages1
Volume54
Edition2
Publication statusPublished - 2005
Externally publishedYes
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: Sep 20 2005Sep 22 2005

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period9/20/059/22/05

Fingerprint

Size exclusion chromatography
Polystyrenes
Molecular weight
Polymers
Coupling agents
Liquid chromatography
Fractionation
Potassium
Molecules

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Cho, D., Kawaguchi, D., Takano, A., & Matsushita, Y. (2005). HPLC analysis of cyclic polystyrenes. In 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan (2 ed., Vol. 54, pp. 3553)

HPLC analysis of cyclic polystyrenes. / Cho, Donghyun; Kawaguchi, Daisuke; Takano, Atsushi; Matsushita, Yushu.

54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. Vol. 54 2. ed. 2005. p. 3553.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cho, D, Kawaguchi, D, Takano, A & Matsushita, Y 2005, HPLC analysis of cyclic polystyrenes. in 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 2 edn, vol. 54, pp. 3553, 54th SPSJ Symposium on Macromolecules, Yamagata, Japan, 9/20/05.
Cho D, Kawaguchi D, Takano A, Matsushita Y. HPLC analysis of cyclic polystyrenes. In 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. 2 ed. Vol. 54. 2005. p. 3553
Cho, Donghyun ; Kawaguchi, Daisuke ; Takano, Atsushi ; Matsushita, Yushu. / HPLC analysis of cyclic polystyrenes. 54th SPSJ Symposium on Macromolecules - Polymer Preprints, Japan. Vol. 54 2. ed. 2005. pp. 3553
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