Cyclopentadithiophene based branched polymer electrets synthesized by friedel–crafts polymerization

Zhengdong Liu; Yan Bao; Haifeng Ling; Hui Hu; Hao Ju; Linghai Xie; Linyi Bian; Yongzheng Chang; Mingdong Yi; Wei Huang

doi:10.1002/pola.28199

Cyclopentadithiophene based branched polymer electrets synthesized by friedel–crafts polymerization

Zhengdong Liu, Yan Bao, Haifeng Ling, Hui Hu, Hao Ju, Linghai Xie, Linyi Bian, Yongzheng Chang, Mingdong Yi, Wei Huang

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

2 Scopus citations

Abstract

In this report, the BF₃·Et₂O catalyzed Friedel–Crafts polymerization of cyclopentadithiophene monomers for branched conjugation-interrupted polymer electrets with the potential application in OFET memories were demonstrated. Branched polycyclopentadithiophenes with controlled molecular weights (M_n) of approximately 8800 g/mol and narrow polydispersity index (PDI = 1.08–1.49) were obtained through the optimized polymerization temperature and time, and monomer addition strategy. OFET memories by using the synthesized polymers as the electret layers were fabricated and exhibited multilevel flash memory behaviors, wide memory windows, high on/off ratios, and long retention lifetime. Impressively, due to the strong hydrophobic, extended pi-conjugation and electron-donating properties, the branched polycyclopentadithiophene based OFET memory exhibited much lower programming voltage than other branched polymer electrets based devices. It is expected that the branched polycyclopentadithiophenes probably have potential application in other organic electronic devices.

Original language	English
Pages (from-to)	3140-3150
Number of pages	11
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	54
Issue number	19
DOIs	https://doi.org/10.1002/pola.28199
State	Published - 1 Oct 2016
Externally published	Yes

Keywords

branched polycyclopentadithiophenes
Friedel–Crafts polymerization
hydrophobic
OFET memories
organic electronic devices

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title = "Cyclopentadithiophene based branched polymer electrets synthesized by friedel–crafts polymerization",

abstract = "In this report, the BF3·Et2O catalyzed Friedel–Crafts polymerization of cyclopentadithiophene monomers for branched conjugation-interrupted polymer electrets with the potential application in OFET memories were demonstrated. Branched polycyclopentadithiophenes with controlled molecular weights (Mn) of approximately 8800 g/mol and narrow polydispersity index (PDI = 1.08–1.49) were obtained through the optimized polymerization temperature and time, and monomer addition strategy. OFET memories by using the synthesized polymers as the electret layers were fabricated and exhibited multilevel flash memory behaviors, wide memory windows, high on/off ratios, and long retention lifetime. Impressively, due to the strong hydrophobic, extended pi-conjugation and electron-donating properties, the branched polycyclopentadithiophene based OFET memory exhibited much lower programming voltage than other branched polymer electrets based devices. It is expected that the branched polycyclopentadithiophenes probably have potential application in other organic electronic devices.",

keywords = "branched polycyclopentadithiophenes, Friedel–Crafts polymerization, hydrophobic, OFET memories, organic electronic devices",

author = "Zhengdong Liu and Yan Bao and Haifeng Ling and Hui Hu and Hao Ju and Linghai Xie and Linyi Bian and Yongzheng Chang and Mingdong Yi and Wei Huang",

note = "Publisher Copyright: {\textcopyright} 2016 Wiley Periodicals, Inc.",

year = "2016",

month = oct,

day = "1",

doi = "10.1002/pola.28199",

language = "英语",

volume = "54",

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T1 - Cyclopentadithiophene based branched polymer electrets synthesized by friedel–crafts polymerization

AU - Liu, Zhengdong

AU - Bao, Yan

AU - Ling, Haifeng

AU - Hu, Hui

AU - Ju, Hao

AU - Xie, Linghai

AU - Bian, Linyi

AU - Chang, Yongzheng

AU - Yi, Mingdong

AU - Huang, Wei

PY - 2016/10/1

Y1 - 2016/10/1

N2 - In this report, the BF3·Et2O catalyzed Friedel–Crafts polymerization of cyclopentadithiophene monomers for branched conjugation-interrupted polymer electrets with the potential application in OFET memories were demonstrated. Branched polycyclopentadithiophenes with controlled molecular weights (Mn) of approximately 8800 g/mol and narrow polydispersity index (PDI = 1.08–1.49) were obtained through the optimized polymerization temperature and time, and monomer addition strategy. OFET memories by using the synthesized polymers as the electret layers were fabricated and exhibited multilevel flash memory behaviors, wide memory windows, high on/off ratios, and long retention lifetime. Impressively, due to the strong hydrophobic, extended pi-conjugation and electron-donating properties, the branched polycyclopentadithiophene based OFET memory exhibited much lower programming voltage than other branched polymer electrets based devices. It is expected that the branched polycyclopentadithiophenes probably have potential application in other organic electronic devices.

AB - In this report, the BF3·Et2O catalyzed Friedel–Crafts polymerization of cyclopentadithiophene monomers for branched conjugation-interrupted polymer electrets with the potential application in OFET memories were demonstrated. Branched polycyclopentadithiophenes with controlled molecular weights (Mn) of approximately 8800 g/mol and narrow polydispersity index (PDI = 1.08–1.49) were obtained through the optimized polymerization temperature and time, and monomer addition strategy. OFET memories by using the synthesized polymers as the electret layers were fabricated and exhibited multilevel flash memory behaviors, wide memory windows, high on/off ratios, and long retention lifetime. Impressively, due to the strong hydrophobic, extended pi-conjugation and electron-donating properties, the branched polycyclopentadithiophene based OFET memory exhibited much lower programming voltage than other branched polymer electrets based devices. It is expected that the branched polycyclopentadithiophenes probably have potential application in other organic electronic devices.

KW - branched polycyclopentadithiophenes

KW - Friedel–Crafts polymerization

KW - hydrophobic

KW - OFET memories

KW - organic electronic devices

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DO - 10.1002/pola.28199

M3 - 文章

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JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 19

ER -

Cyclopentadithiophene based branched polymer electrets synthesized by friedel–crafts polymerization

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