Preparation and characterization of new phosphonyl-substituted imidazolium ionic liquids

Zong Gang Mu; Feng Zhou; Shu Xiang Zhang; Yong Min Liang; Wei Min Liu

doi:10.1002/hlca.200490227

Preparation and characterization of new phosphonyl-substituted imidazolium ionic liquids

Zong Gang Mu, Feng Zhou, Shu Xiang Zhang, Yong Min Liang, Wei Min Liu

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

26 Scopus citations

Abstract

A new series of diethoxyphosphinyl-substituted imidazolium 'room-temperature ionic liquids' (RTILs) were synthesized and characterized. The new compounds 1-12 (Table 1) were shown to have similar densities, but higher viscosities, than common ionic liquids. The new materials remain liquid over a broad temperature range, possess extremely low vapor pressures, display relatively high thermal stabilities (up to 325°), and decompose in a two-step process. Analysis of the solid/liquid phase transition showed that all of the new RTILs possess low glass-transition temperatures (T_g) associated with an intense change in molar heat capacity (ΔC _pm).

Original language	English
Pages (from-to)	2549-2555
Number of pages	7
Journal	Helvetica Chimica Acta
Volume	87
Issue number	10
DOIs	https://doi.org/10.1002/hlca.200490227
State	Published - 2004
Externally published	Yes

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10.1002/hlca.200490227

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title = "Preparation and characterization of new phosphonyl-substituted imidazolium ionic liquids",

abstract = "A new series of diethoxyphosphinyl-substituted imidazolium 'room-temperature ionic liquids' (RTILs) were synthesized and characterized. The new compounds 1-12 (Table 1) were shown to have similar densities, but higher viscosities, than common ionic liquids. The new materials remain liquid over a broad temperature range, possess extremely low vapor pressures, display relatively high thermal stabilities (up to 325°), and decompose in a two-step process. Analysis of the solid/liquid phase transition showed that all of the new RTILs possess low glass-transition temperatures (Tg) associated with an intense change in molar heat capacity (ΔC pm).",

author = "Mu, {Zong Gang} and Feng Zhou and Zhang, {Shu Xiang} and Liang, {Yong Min} and Liu, {Wei Min}",

year = "2004",

doi = "10.1002/hlca.200490227",

language = "英语",

volume = "87",

pages = "2549--2555",

journal = "Helvetica Chimica Acta",

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T1 - Preparation and characterization of new phosphonyl-substituted imidazolium ionic liquids

AU - Mu, Zong Gang

AU - Zhou, Feng

AU - Zhang, Shu Xiang

AU - Liang, Yong Min

AU - Liu, Wei Min

PY - 2004

Y1 - 2004

N2 - A new series of diethoxyphosphinyl-substituted imidazolium 'room-temperature ionic liquids' (RTILs) were synthesized and characterized. The new compounds 1-12 (Table 1) were shown to have similar densities, but higher viscosities, than common ionic liquids. The new materials remain liquid over a broad temperature range, possess extremely low vapor pressures, display relatively high thermal stabilities (up to 325°), and decompose in a two-step process. Analysis of the solid/liquid phase transition showed that all of the new RTILs possess low glass-transition temperatures (Tg) associated with an intense change in molar heat capacity (ΔC pm).

AB - A new series of diethoxyphosphinyl-substituted imidazolium 'room-temperature ionic liquids' (RTILs) were synthesized and characterized. The new compounds 1-12 (Table 1) were shown to have similar densities, but higher viscosities, than common ionic liquids. The new materials remain liquid over a broad temperature range, possess extremely low vapor pressures, display relatively high thermal stabilities (up to 325°), and decompose in a two-step process. Analysis of the solid/liquid phase transition showed that all of the new RTILs possess low glass-transition temperatures (Tg) associated with an intense change in molar heat capacity (ΔC pm).

UR - http://www.scopus.com/inward/record.url?scp=8644272301&partnerID=8YFLogxK

U2 - 10.1002/hlca.200490227

DO - 10.1002/hlca.200490227

M3 - 文章

AN - SCOPUS:8644272301

SN - 0018-019X

VL - 87

SP - 2549

EP - 2555

JO - Helvetica Chimica Acta

JF - Helvetica Chimica Acta

IS - 10

ER -

Preparation and characterization of new phosphonyl-substituted imidazolium ionic liquids

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