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

Chaoyang Wang; Minhui Cui

doi:10.1002/app.11926

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

Chaoyang Wang, Minhui Cui

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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 language	English (US)
Pages (from-to)	1632-1636
Number of pages	5
Journal	Journal of Applied Polymer Science
Volume	88
Issue number	7
DOIs	https://doi.org/10.1002/app.11926
State	Published - May 16 2003
Externally published	Yes

Keywords

Anionic polymerization
Block copolymer
Poly(2-vinylpyridine)
Polyoxyethylene

ASJC Scopus subject areas

General Chemistry
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.11926

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title = "Synthesis of multiblock copolymers of poly(2-vinylpyridine) and polyoxyethylene",

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.",

keywords = "Anionic polymerization, Block copolymer, Poly(2-vinylpyridine), Polyoxyethylene",

author = "Chaoyang Wang and Minhui Cui",

year = "2003",

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doi = "10.1002/app.11926",

language = "English (US)",

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T1 - Synthesis of multiblock copolymers of poly(2-vinylpyridine) and polyoxyethylene

AU - Wang, Chaoyang

AU - Cui, Minhui

PY - 2003/5/16

Y1 - 2003/5/16

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.

KW - Anionic polymerization

KW - Block copolymer

KW - Poly(2-vinylpyridine)

KW - Polyoxyethylene

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JF - Journal of Applied Polymer Science

IS - 7

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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