Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives

Shengyi  Dong; Li Wang; Jianfeng Wu; Lin Jin; Yan Ge; Zhenhui Qi; Changzhu Wu

doi:10.1021/acs.langmuir.7b03431

Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives

Shengyi Dong, Li Wang, Jianfeng Wu, Lin Jin, Yan Ge, Zhenhui Qi, Changzhu Wu

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

For designing water-soluble responsive materials, utilizing crown ethers as main building blocks has been rarely explored in contrast to their linear poly(ethylene glycol) counterparts. In the current study, we report the robust thermoresponsive properties of the benzo-21-crown-7 (B21C7) family with lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior. Different substituent groups on the benzene ring exhibit significant effects on water solubility and thermoresponsiveness. B21C7 and its cyano derivative display LCST phenomena, while B21C7-based carboxylic acid derivative presents UCST followed by LCST phase behavior. Supramolecular interactions with KCl provide an additional tuning approach for this crown ether system. These results demonstrate that B21C7s can serve as an easily accessible toolbox to develop new thermosensitive systems and prepare thermally responsive materials.

Original language	English
Journal	Langmuir
Volume	33
Issue number	48
Pages (from-to)	13861–13866
ISSN	0743-7463
DOIs	https://doi.org/10.1021/acs.langmuir.7b03431
Publication status	Published - 5. Dec 2017
Externally published	Yes

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10.1021/acs.langmuir.7b03431

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title = "Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives",

abstract = "For designing water-soluble responsive materials, utilizing crown ethers as main building blocks has been rarely explored in contrast to their linear poly(ethylene glycol) counterparts. In the current study, we report the robust thermoresponsive properties of the benzo-21-crown-7 (B21C7) family with lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior. Different substituent groups on the benzene ring exhibit significant effects on water solubility and thermoresponsiveness. B21C7 and its cyano derivative display LCST phenomena, while B21C7-based carboxylic acid derivative presents UCST followed by LCST phase behavior. Supramolecular interactions with KCl provide an additional tuning approach for this crown ether system. These results demonstrate that B21C7s can serve as an easily accessible toolbox to develop new thermosensitive systems and prepare thermally responsive materials.",

author = "Shengyi Dong and Li Wang and Jianfeng Wu and Lin Jin and Yan Ge and Zhenhui Qi and Changzhu Wu",

year = "2017",

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doi = "10.1021/acs.langmuir.7b03431",

language = "English",

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TY - JOUR

T1 - Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives

AU - Dong, Shengyi

AU - Wang, Li

AU - Wu, Jianfeng

AU - Jin, Lin

AU - Ge, Yan

AU - Qi, Zhenhui

AU - Wu, Changzhu

PY - 2017/12/5

Y1 - 2017/12/5

N2 - For designing water-soluble responsive materials, utilizing crown ethers as main building blocks has been rarely explored in contrast to their linear poly(ethylene glycol) counterparts. In the current study, we report the robust thermoresponsive properties of the benzo-21-crown-7 (B21C7) family with lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior. Different substituent groups on the benzene ring exhibit significant effects on water solubility and thermoresponsiveness. B21C7 and its cyano derivative display LCST phenomena, while B21C7-based carboxylic acid derivative presents UCST followed by LCST phase behavior. Supramolecular interactions with KCl provide an additional tuning approach for this crown ether system. These results demonstrate that B21C7s can serve as an easily accessible toolbox to develop new thermosensitive systems and prepare thermally responsive materials.

AB - For designing water-soluble responsive materials, utilizing crown ethers as main building blocks has been rarely explored in contrast to their linear poly(ethylene glycol) counterparts. In the current study, we report the robust thermoresponsive properties of the benzo-21-crown-7 (B21C7) family with lower critical solution temperature (LCST) and upper critical solution temperature (UCST) behavior. Different substituent groups on the benzene ring exhibit significant effects on water solubility and thermoresponsiveness. B21C7 and its cyano derivative display LCST phenomena, while B21C7-based carboxylic acid derivative presents UCST followed by LCST phase behavior. Supramolecular interactions with KCl provide an additional tuning approach for this crown ether system. These results demonstrate that B21C7s can serve as an easily accessible toolbox to develop new thermosensitive systems and prepare thermally responsive materials.

U2 - 10.1021/acs.langmuir.7b03431

DO - 10.1021/acs.langmuir.7b03431

M3 - Journal article

SN - 0743-7463

VL - 33

SP - 13861

EP - 13866

JO - Langmuir

JF - Langmuir

IS - 48

ER -

Thermosensitive Phase Behavior of Benzo-21-crown-7 and Its Derivatives

Abstract

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