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Jeong KM, Tapaswi PK, Kambara T, Ishige R, Ando S, Ha CS. Photoconductive polyimides derived from a novel imidazole-containing diamine. HIGH PERFORM POLYM 2019. [DOI: 10.1177/0954008319892307] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A new diamine containing an imidazole structure, 4,4′-(4,5-diphenyl-1H-imidazole-1,2-diyl)dianiline (DIMA), was synthesized to prepare photoconductive polyimides (PIs) with four types of dianhydrides such as 3,3′,4,4′-biphenyltetracarboxylic dianhydride, 4,4′-oxyduphthalic anhydride, 4,4′-(hexafluoroisopropylidene) diphthalic anhydride, and cyclobutane-1,2,3,4,-tetracarboxylic dianhydride, based on the fact that the imidazole ring is a useful n-type block with high electron-donating property and good thermal stability. The imidazole-containing diamine possesses high electron-donating properties due to the lone pair electrons at nitrogen, which affords a high hole-transport property. All the PIs prepared from DIMA were amorphous due to the large side group and kink structure of the diamine, optically transparent (transmittances of 92–98% at 450 nm), and exhibited high thermal stability (10% weight loss temperatures ranged 453–558°C).
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Affiliation(s)
- Keuk-Min Jeong
- Department of Polymer Science and Engineering, Pusan National University, Busan, South Korea
| | - Pradip Kumar Tapaswi
- Department of Polymer Science and Engineering, Pusan National University, Busan, South Korea
- Narasinha Dutt College, University of Calcutta, Kolkata, West Bengal, India
| | - Takehiko Kambara
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-Ku, Tokyo, Japan
| | - Ryohei Ishige
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-Ku, Tokyo, Japan
| | - Shinji Ando
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama, Meguro-Ku, Tokyo, Japan
| | - Chang-Sik Ha
- Department of Polymer Science and Engineering, Pusan National University, Busan, South Korea
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Lian M, Zheng F, Wu Q, Lu X, Lu Q. Incorporating bis‐benzimidazole into polyimide chains for effectively improving thermal resistance and dimensional stability. POLYM INT 2019. [DOI: 10.1002/pi.5922] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meng Lian
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai China
| | - Feng Zheng
- School of Chemical Science and EngineeringTongji University Shanghai China
| | - Qi Wu
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai China
| | - Xuemin Lu
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai China
| | - Qinghua Lu
- Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical EngineeringShanghai Jiao Tong University Shanghai China
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3
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Fang Z, Wu F, Lin L, Qin Q, Au C, Tao Q, Li X, Yu D, Yi B. Effects of sulfonation on bis-styrylbiphenyl fluorescent whitening agents for polypropylene. J Appl Polym Sci 2019. [DOI: 10.1002/app.47635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhengjun Fang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
- Department of Chemistry and Bioscience; Aalborg University; Aalborg 9220 Denmark
| | - Feng Wu
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
| | - Liangwei Lin
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
| | - Qiwen Qin
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
| | - Chaktong Au
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
| | - Qiang Tao
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
- Department of Chemistry and Bioscience; Aalborg University; Aalborg 9220 Denmark
| | - Xitian Li
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
| | - Donghong Yu
- Department of Chemistry and Bioscience; Aalborg University; Aalborg 9220 Denmark
- Sino-Danish Center for Education and Research (SDC); Aarhus 8000 Denmark
| | - Bing Yi
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling; School of Chemistry and Chemical Engineering, Hunan Institute of Engineering; Xiangtan 411104 China
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