Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

Panagiota G. Fragouli; Hermis Iatrou; Nikos Hadjichristidis

doi:10.1016/S0032-3861(02)00455-X

Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

Panagiota G. Fragouli, Hermis Iatrou, Nikos Hadjichristidis^*

^*Corresponding author for this work

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

25 Scopus citations

Abstract

This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO^(-)K⁽⁺⁾ produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 °C. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity.

Original language	English (US)
Pages (from-to)	7141-7144
Number of pages	4
Journal	Polymer
Volume	43
Issue number	25
DOIs	https://doi.org/10.1016/S0032-3861(02)00455-X
State	Published - Oct 28 2002
Externally published	Yes

Keywords

Benzylpotassium
P2VP-b-PEO-b-P2VP
Sequential anionic polymerization

ASJC Scopus subject areas

Materials Chemistry
Polymers and Plastics
Organic Chemistry

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10.1016/S0032-3861(02)00455-X

Cite this

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title = "Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide",

abstract = "This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO(-)K(+) produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 °C. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity.",

keywords = "Benzylpotassium, P2VP-b-PEO-b-P2VP, Sequential anionic polymerization",

author = "Fragouli, {Panagiota G.} and Hermis Iatrou and Nikos Hadjichristidis",

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doi = "10.1016/S0032-3861(02)00455-X",

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T1 - Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

AU - Fragouli, Panagiota G.

AU - Iatrou, Hermis

AU - Hadjichristidis, Nikos

PY - 2002/10/28

Y1 - 2002/10/28

N2 - This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO(-)K(+) produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 °C. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity.

AB - This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO(-)K(+) produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 °C. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity.

KW - Benzylpotassium

KW - P2VP-b-PEO-b-P2VP

KW - Sequential anionic polymerization

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U2 - 10.1016/S0032-3861(02)00455-X

DO - 10.1016/S0032-3861(02)00455-X

M3 - Article

AN - SCOPUS:0037190769

SN - 0032-3861

VL - 43

SP - 7141

EP - 7144

JO - Polymer

JF - Polymer

IS - 25

ER -

Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

Abstract

Keywords

ASJC Scopus subject areas

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