Preparation and characterization of polyfluorene-based supramolecular π-conjugated polymer gels

Zong Qiong Lin; Nai En Shi; Yi Bao Li; Dong Qiu; Long Zhang; Jin Yi Lin; Jian Feng Zhao; Chen Wang; Ling Hai Xie; Wei Huang

doi:10.1021/jp109598y

Preparation and characterization of polyfluorene-based supramolecular π-conjugated polymer gels

Zong Qiong Lin, Nai En Shi, Yi Bao Li, Dong Qiu, Long Zhang, Jin Yi Lin, Jian Feng Zhao, Chen Wang, Ling Hai Xie, Wei Huang

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

88 Scopus citations

Abstract

Supramolecular π-conjugated polymer-based gels (SCPGs) are one important kind of semiconducting soft materials. Herein we demonstrate a poly(9,9-dioctylfluorene) (PFO) based on SCPG in 1,2-dichloroethane (DCE). The PFO/DCE gel exhibits a characteristic photoluminescence profile distinguished from other polymorphisms. The emission peak at ca. 550 nm evidences the aggregate or excimer mechanism of the low-energy emission band in polyfluorenes. Thermoreversible sol-gel transition of PFO/DCE gel has been investigated by temperature-resolved fluorescence spectroscopy and differential scanning calorimetry (DSC). The formation mechanism of PFO/DCE gel has been proposed according to the scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS) analysis. The obtained xerogel via freeze-drying exhibited regularly interpenetrated pores with the size of about 2-5 μm. Gelation of π-conjugated polymers paves a promising way to prepare porous soft semiconductors with potential applications of sensors and actuators.

Original language	English
Pages (from-to)	4418-4424
Number of pages	7
Journal	Journal of Physical Chemistry C
Volume	115
Issue number	11
DOIs	https://doi.org/10.1021/jp109598y
State	Published - 24 Mar 2011
Externally published	Yes

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title = "Preparation and characterization of polyfluorene-based supramolecular π-conjugated polymer gels",

abstract = "Supramolecular π-conjugated polymer-based gels (SCPGs) are one important kind of semiconducting soft materials. Herein we demonstrate a poly(9,9-dioctylfluorene) (PFO) based on SCPG in 1,2-dichloroethane (DCE). The PFO/DCE gel exhibits a characteristic photoluminescence profile distinguished from other polymorphisms. The emission peak at ca. 550 nm evidences the aggregate or excimer mechanism of the low-energy emission band in polyfluorenes. Thermoreversible sol-gel transition of PFO/DCE gel has been investigated by temperature-resolved fluorescence spectroscopy and differential scanning calorimetry (DSC). The formation mechanism of PFO/DCE gel has been proposed according to the scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS) analysis. The obtained xerogel via freeze-drying exhibited regularly interpenetrated pores with the size of about 2-5 μm. Gelation of π-conjugated polymers paves a promising way to prepare porous soft semiconductors with potential applications of sensors and actuators.",

author = "Lin, {Zong Qiong} and Shi, {Nai En} and Li, {Yi Bao} and Dong Qiu and Long Zhang and Lin, {Jin Yi} and Zhao, {Jian Feng} and Chen Wang and Xie, {Ling Hai} and Wei Huang",

year = "2011",

month = mar,

day = "24",

doi = "10.1021/jp109598y",

language = "英语",

volume = "115",

pages = "4418--4424",

journal = "Journal of Physical Chemistry C",

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T1 - Preparation and characterization of polyfluorene-based supramolecular π-conjugated polymer gels

AU - Lin, Zong Qiong

AU - Shi, Nai En

AU - Li, Yi Bao

AU - Qiu, Dong

AU - Zhang, Long

AU - Lin, Jin Yi

AU - Zhao, Jian Feng

AU - Wang, Chen

AU - Xie, Ling Hai

AU - Huang, Wei

PY - 2011/3/24

Y1 - 2011/3/24

N2 - Supramolecular π-conjugated polymer-based gels (SCPGs) are one important kind of semiconducting soft materials. Herein we demonstrate a poly(9,9-dioctylfluorene) (PFO) based on SCPG in 1,2-dichloroethane (DCE). The PFO/DCE gel exhibits a characteristic photoluminescence profile distinguished from other polymorphisms. The emission peak at ca. 550 nm evidences the aggregate or excimer mechanism of the low-energy emission band in polyfluorenes. Thermoreversible sol-gel transition of PFO/DCE gel has been investigated by temperature-resolved fluorescence spectroscopy and differential scanning calorimetry (DSC). The formation mechanism of PFO/DCE gel has been proposed according to the scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS) analysis. The obtained xerogel via freeze-drying exhibited regularly interpenetrated pores with the size of about 2-5 μm. Gelation of π-conjugated polymers paves a promising way to prepare porous soft semiconductors with potential applications of sensors and actuators.

AB - Supramolecular π-conjugated polymer-based gels (SCPGs) are one important kind of semiconducting soft materials. Herein we demonstrate a poly(9,9-dioctylfluorene) (PFO) based on SCPG in 1,2-dichloroethane (DCE). The PFO/DCE gel exhibits a characteristic photoluminescence profile distinguished from other polymorphisms. The emission peak at ca. 550 nm evidences the aggregate or excimer mechanism of the low-energy emission band in polyfluorenes. Thermoreversible sol-gel transition of PFO/DCE gel has been investigated by temperature-resolved fluorescence spectroscopy and differential scanning calorimetry (DSC). The formation mechanism of PFO/DCE gel has been proposed according to the scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS) analysis. The obtained xerogel via freeze-drying exhibited regularly interpenetrated pores with the size of about 2-5 μm. Gelation of π-conjugated polymers paves a promising way to prepare porous soft semiconductors with potential applications of sensors and actuators.

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U2 - 10.1021/jp109598y

DO - 10.1021/jp109598y

M3 - 文章

AN - SCOPUS:79952848763

SN - 1932-7447

VL - 115

SP - 4418

EP - 4424

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 11

ER -

Preparation and characterization of polyfluorene-based supramolecular π-conjugated polymer gels

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