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Khalid MA, Zhao Y, Yang Y, Liu X, Garrone E, Dai A, Diao G, Carlini R. Fluorescent Polyimide Films Produced with Diatomite and Mesoporous Silica as Promising High-Tech Material. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01943-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Huang M, Wang L, Li X, Yan S, Yeung KW, Chu PK, Xu Z, Yi C. Design and preparation of novel fluorescent polyimides containing ortho-linked units and pyridine moieties. Des Monomers Polym 2012; 15:389-404. [PMID: 38812897 PMCID: PMC11132726 DOI: 10.1080/1385772x.2012.686691] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
A novel pyridine-containing aromatic diamine monomer, 4-[4-hydroxyphenyl]-2,6-bis[4-(2-aminophenoxy)phenyl]pyridine (p,o-HAPP), was synthesized by a modified Chichibabin reaction of p-Hydroxybenzaldehyde and a substituted acetophenone, 4-(2-nitrophenoxy)acetophenone (p,o-NPAP), followed by a reduction of the resulting dinitro compound 4-[4-hydroxyphenyl]-2,6-bis[4-(2-nitrophenoxy)phenyl]pyridine with Pd/C and hydrazine monohydrate. The aromatic diamine was employed to prepare a series of pyridine-containing polyimides (PIs) by polycondensation with various aromatic dianhydrides in N,N-dimethylformamide (DMF) via the conventional two-step method. The inherent viscosities of the resulting poly(amic acids) and PIs were in range of 0.62-0.76 and 0.52-0.64 dL/g, respectively. The obtained novel PIs exhibited high solubility in common organic solvents, such as m-Cresol, DMF, N,N-dimethylacetamide, dimethylsulfoxide, N-methylpyrrolidone (NMP), tetrahydrofuran, and chloroform. Meanwhile, flexible PI films were obtained, which had excellent thermal stability, with the glass transition temperature (T g) of 259.8-323.4 °C and the temperature at 10% weight loss of 485.5-576.4 °C in nitrogen atmosphere. The protonated polymer showed UV-vis absorption in the region 200-400 nm and displayed strong fluorescence intensity (470 nm) in NMP solution.
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Affiliation(s)
- Mingfu Huang
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
| | - Li Wang
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
| | - Xiaolong Li
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
| | - Shanyin Yan
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
| | - Kelvin W.K. Yeung
- The University of Hong Kong, Division of Spine Surgery, Department of Orthopaedics and Traumatology, Pokfulam, China, Hong Kong
| | - Paul K. Chu
- City University of Hong Kong, Department of Physics & Materials Science, Kowloon, China, Hong Kong, Tat Chee Aenue
| | - Zushun Xu
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
- City University of Hong Kong, Department of Physics & Materials Science, Kowloon, China, Hong Kong, Tat Chee Aenue
| | - Changfeng Yi
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China
- The University of Hong Kong, Division of Spine Surgery, Department of Orthopaedics and Traumatology, Pokfulam, China, Hong Kong
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Faghihi K, Feyzi A, Hajibeygi M. Synthesis and characterization of new poly(amide-imide)s based on [N,N′-(4,4′-carbonyldiphtaloyl)-bis-L-amino diacid]s and dibenzalacetone moieties in the main chain. Des Monomers Polym 2012. [DOI: 10.1080/1385772x.2012.688334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- Khalil Faghihi
- a Department of Chemistry, Faculty of Science , Arak University , Arak , 38156-8-8349 , Iran
| | - Akram Feyzi
- a Department of Chemistry, Faculty of Science , Arak University , Arak , 38156-8-8349 , Iran
| | - Mohsen Hajibeygi
- b Department of Chemistry , Varamin Pishva Branch, Islamic Azad University , Varamin , Iran
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Yan S, Chen W, Yan W, Huang M, Chen C, Xu Z, Yeung KWK, Yi C. Optical Transparency and Light Colour of Highly Soluble Fluorinated Polyimides Derived from a Novel Pyridine-Containing Diamine m, p-3FPAPP and Various Aromatic Dianhydrides. Des Monomers Polym 2012. [DOI: 10.1163/156855511x598669] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Shanyin Yan
- a Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China
| | - Wenqiu Chen
- b Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China
| | - Wei Yan
- c Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China
| | - Mingfu Huang
- d Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China
| | - Chuan Chen
- e Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China
| | - Zushun Xu
- f Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China, Division of Spine Surgery, Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong, P. R. China
| | - Kelvin W. K. Yeung
- g Division of Spine Surgery, Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong, P. R. China
| | - Changfeng Yi
- h Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, P. R. China, Division of Spine Surgery, Department of Orthopaedics and Traumatology, The University of Hong Kong, Pokfulam, Hong Kong, P. R. China;,
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Hajibeygi M, Shabanian M, Khodaei-Tehrani M. Synthesis and Characterization of New Organosoluble Poly(Amide-Imide)s with Good Thermal Properties Containing Photosensitive and Bicyclo Segments in the Main Chain. Des Monomers Polym 2012. [DOI: 10.1163/156855511x601619] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Mohsen Hajibeygi
- a Department of Chemistry, Varamin Pishva Branch, Islamic Azad University, Varamin Pishva, Iran;,
| | - Meisam Shabanian
- b Young Researchers Club, Arak Branch, Islamic Azad University, Arak, Iran
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