Dual reversible self-assembly of PNIPAM-based amphiphiles formed by inclusion complexation

Jiong Zou; Bing Guan; Xiaojuan Liao; Ming Jiang; Fenggang Tao

doi:10.1021/ma901276c

Dual reversible self-assembly of PNIPAM-based amphiphiles formed by inclusion complexation

Jiong Zou
, Bing Guan
, Xiaojuan Liao
, Ming Jiang^*
, Fenggang Tao

^*Corresponding author for this work

Fudan University

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

98 Scopus citations

Abstract

β-Cyclodextrin (3-CD)-ended linear poly(N-isopropylacrylamide) (β-CD-PNIPAM) and Frechét-type benzyl ether dendron with an azobenzene group (Gx-Azo) at the apex site form noncovalently connected amphiphiles (NCCAs) by inclusion complexation between the azo group and β-CD. The NCCAs self-assemble into vesicles in water. Optical switching of the assembly and disassembly is realized by alternating visible and UV irradiation, which causes the isomerization of the azo groups and their consequent complexation and decomplexation with β -CD. The structure and morphology of the vesicles were characterized by dynamic light scattering (DLS), static light scattering (SLS), SEM, TEM, and AFM. These photoresponsive vesicles can further respond to heat stimuli resulting in reversible aggregation and disaggregation of the vesicles.

Original language	English
Pages (from-to)	7465-7473
Number of pages	9
Journal	Macromolecules
Volume	42
Issue number	19
DOIs	https://doi.org/10.1021/ma901276c
State	Published - 13 Oct 2009
Externally published	Yes

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title = "Dual reversible self-assembly of PNIPAM-based amphiphiles formed by inclusion complexation",

abstract = "β-Cyclodextrin (3-CD)-ended linear poly(N-isopropylacrylamide) (β-CD-PNIPAM) and Frech{\'e}t-type benzyl ether dendron with an azobenzene group (Gx-Azo) at the apex site form noncovalently connected amphiphiles (NCCAs) by inclusion complexation between the azo group and β-CD. The NCCAs self-assemble into vesicles in water. Optical switching of the assembly and disassembly is realized by alternating visible and UV irradiation, which causes the isomerization of the azo groups and their consequent complexation and decomplexation with β -CD. The structure and morphology of the vesicles were characterized by dynamic light scattering (DLS), static light scattering (SLS), SEM, TEM, and AFM. These photoresponsive vesicles can further respond to heat stimuli resulting in reversible aggregation and disaggregation of the vesicles.",

author = "Jiong Zou and Bing Guan and Xiaojuan Liao and Ming Jiang and Fenggang Tao",

year = "2009",

month = oct,

day = "13",

doi = "10.1021/ma901276c",

language = "英语",

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pages = "7465--7473",

journal = "Macromolecules",

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TY - JOUR

T1 - Dual reversible self-assembly of PNIPAM-based amphiphiles formed by inclusion complexation

AU - Zou, Jiong

AU - Guan, Bing

AU - Liao, Xiaojuan

AU - Jiang, Ming

AU - Tao, Fenggang

PY - 2009/10/13

Y1 - 2009/10/13

N2 - β-Cyclodextrin (3-CD)-ended linear poly(N-isopropylacrylamide) (β-CD-PNIPAM) and Frechét-type benzyl ether dendron with an azobenzene group (Gx-Azo) at the apex site form noncovalently connected amphiphiles (NCCAs) by inclusion complexation between the azo group and β-CD. The NCCAs self-assemble into vesicles in water. Optical switching of the assembly and disassembly is realized by alternating visible and UV irradiation, which causes the isomerization of the azo groups and their consequent complexation and decomplexation with β -CD. The structure and morphology of the vesicles were characterized by dynamic light scattering (DLS), static light scattering (SLS), SEM, TEM, and AFM. These photoresponsive vesicles can further respond to heat stimuli resulting in reversible aggregation and disaggregation of the vesicles.

AB - β-Cyclodextrin (3-CD)-ended linear poly(N-isopropylacrylamide) (β-CD-PNIPAM) and Frechét-type benzyl ether dendron with an azobenzene group (Gx-Azo) at the apex site form noncovalently connected amphiphiles (NCCAs) by inclusion complexation between the azo group and β-CD. The NCCAs self-assemble into vesicles in water. Optical switching of the assembly and disassembly is realized by alternating visible and UV irradiation, which causes the isomerization of the azo groups and their consequent complexation and decomplexation with β -CD. The structure and morphology of the vesicles were characterized by dynamic light scattering (DLS), static light scattering (SLS), SEM, TEM, and AFM. These photoresponsive vesicles can further respond to heat stimuli resulting in reversible aggregation and disaggregation of the vesicles.

UR - https://www.scopus.com/pages/publications/70349898768

U2 - 10.1021/ma901276c

DO - 10.1021/ma901276c

M3 - 文章

AN - SCOPUS:70349898768

SN - 0024-9297

VL - 42

SP - 7465

EP - 7473

JO - Macromolecules

JF - Macromolecules

IS - 19

ER -

Dual reversible self-assembly of PNIPAM-based amphiphiles formed by inclusion complexation

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