Synthesis of multiblock copolymers of poly(2-vinylpyridine) and polyoxyethylene

Chaoyang Wang, Min-Hui Cui

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Telechelic dihydroxy poly(2-vinylpyridine) (THPVP) samples with different molecular weights were synthesized by using lithium α-methylnaphthalene as an anionic initiator in mixed solvents of benzene and tetrahydrofuran (THF). Then multiblock copolymers of poly(2-vinylpyridine) (P2VP) and polyoxyethylene (PEO) were obtained by condensing THPVP and PEO with dichloromethane in the presence of potassium hydroxide. The effects of reaction time, molecular weight of PEO and THPVP, and raw meal ratio PEO/THPVP (w/w) were investigated. The best conditions were found. The copolymers can be purified by water and toluene. The purified copolymers were characterized by infrared (IR) and 1H nuclear magnetic resonance (1H-NMR). The PEO segment content was calculated from the integral curve of 1H-NMR spectra. The results showed that these multiblock copolymers were connected through oxymethylene.

Original languageEnglish (US)
Pages (from-to)1632-1636
Number of pages5
JournalJournal of Applied Polymer Science
Volume88
Issue number7
DOIs
StatePublished - May 16 2003
Externally publishedYes

Fingerprint

Polyethylene oxides
Polyethylene glycols
Copolymers
Molecular weight
Nuclear magnetic resonance
Potassium hydroxide
Methylene Chloride
Dichloromethane
Toluene
Benzene
Lithium
poly(2-vinylpyridine)
Infrared radiation
Water

Keywords

  • Anionic polymerization
  • Block copolymer
  • Poly(2-vinylpyridine)
  • Polyoxyethylene

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Synthesis of multiblock copolymers of poly(2-vinylpyridine) and polyoxyethylene. / Wang, Chaoyang; Cui, Min-Hui.

In: Journal of Applied Polymer Science, Vol. 88, No. 7, 16.05.2003, p. 1632-1636.

Research output: Contribution to journalArticle

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N2 - Telechelic dihydroxy poly(2-vinylpyridine) (THPVP) samples with different molecular weights were synthesized by using lithium α-methylnaphthalene as an anionic initiator in mixed solvents of benzene and tetrahydrofuran (THF). Then multiblock copolymers of poly(2-vinylpyridine) (P2VP) and polyoxyethylene (PEO) were obtained by condensing THPVP and PEO with dichloromethane in the presence of potassium hydroxide. The effects of reaction time, molecular weight of PEO and THPVP, and raw meal ratio PEO/THPVP (w/w) were investigated. The best conditions were found. The copolymers can be purified by water and toluene. The purified copolymers were characterized by infrared (IR) and 1H nuclear magnetic resonance (1H-NMR). The PEO segment content was calculated from the integral curve of 1H-NMR spectra. The results showed that these multiblock copolymers were connected through oxymethylene.

AB - Telechelic dihydroxy poly(2-vinylpyridine) (THPVP) samples with different molecular weights were synthesized by using lithium α-methylnaphthalene as an anionic initiator in mixed solvents of benzene and tetrahydrofuran (THF). Then multiblock copolymers of poly(2-vinylpyridine) (P2VP) and polyoxyethylene (PEO) were obtained by condensing THPVP and PEO with dichloromethane in the presence of potassium hydroxide. The effects of reaction time, molecular weight of PEO and THPVP, and raw meal ratio PEO/THPVP (w/w) were investigated. The best conditions were found. The copolymers can be purified by water and toluene. The purified copolymers were characterized by infrared (IR) and 1H nuclear magnetic resonance (1H-NMR). The PEO segment content was calculated from the integral curve of 1H-NMR spectra. The results showed that these multiblock copolymers were connected through oxymethylene.

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KW - Polyoxyethylene

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