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Li H, Zhao S, Pei L, Qiao Z, Han D, Liu Z, Lian Q, Zhao G, Wang Z. Thermal properties of polybenzoxazine exhibiting improved toughness: Blending with cyclodextrin and its derivatives. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211013091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polybenzoxazines are emerging as a class of high-performance thermoset polymers that can find their applications in various fields. However, its practical application is limited by its low toughness. The cyclic β-cyclodextrin and a newly synthesized derivative (β-cyclodextrin-MAH) were separately blended with benzoxazine to improve the toughness of polybenzoxazine. The results revealed that the maximum impact strength of the blend was 12.24 kJ·m−2 and 14.29 kJ·m−2 when 1 wt.% of β-Cyclodextrin and β-Cyclodextrin-MAH, respectively, were used. The strengths were 53% and 86% higher than that of pure polybenzoxazine. The curing reaction, possible chemical structures, and fractured surface were examined using differential scanning calorimetry, Fourier transform infrared spectroscopy, and scanning electron microscopy techniques to understand the mechanism of generation of toughness. The results revealed that the sea-island structure and the presence of hydrogen bonds between polybenzoxazine and β-cyclodextrin and β-cyclodextrin-MAH resulted in the generation of toughness. Furthermore, the curves generated during thermogravimetric analysis did not significantly change, revealing the good thermal properties of the system. The phase-separated structure and the hydrogen bonds present in the system can be exploited to prepare synergistically tough polybenzoxazine exhibiting excellent thermal properties. This can be a potential way of modifying the thermoset resins.
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Affiliation(s)
- Hailong Li
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Sipei Zhao
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Li Pei
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Zihe Qiao
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Ding Han
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Zhanxin Liu
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Qingsong Lian
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Guizhe Zhao
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
| | - Zhi Wang
- Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan, People’s Republic of China
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Xu Y, Yang N, Liu Y, Li Z, He Q, Li C. Improvement of aldehyde‐functional polybenzoxazine processability and mechanical properties achieved by 5‐aminoindole/benzoxazine copolymerization. POLYM INT 2020. [DOI: 10.1002/pi.6144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yi Xu
- Civil Aviation Safety Engineering Institute Civil Aviation Flight University of China Guanghan China
| | - Nan Yang
- Civil Aviation Safety Engineering Institute Civil Aviation Flight University of China Guanghan China
| | - Yujia Liu
- Civil Aviation Safety Engineering Institute Civil Aviation Flight University of China Guanghan China
| | - Zhengbai Li
- Civil Aviation Safety Engineering Institute Civil Aviation Flight University of China Guanghan China
| | - Qiang He
- Civil Aviation Safety Engineering Institute Civil Aviation Flight University of China Guanghan China
| | - Chao Li
- Chengdu BOE Optoelectronics Technology Co. Ltd Chengdu China
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3
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Building up of Prosopis juliflora carbon incorporated cardanol based polybenzoxazine composites with intensification of mechanical and corrosion resistance properties for adaptable applications. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03084-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Chen S, Ren D, Li B, Li K, Chen L, Xu M, Liu X. Benzoxazine Containing Fluorinated Aromatic Ether Nitrile Linkage: Preparation, Curing Kinetics and Dielectric Properties. Polymers (Basel) 2019; 11:E1036. [PMID: 31212666 PMCID: PMC6631285 DOI: 10.3390/polym11061036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/06/2019] [Accepted: 06/08/2019] [Indexed: 11/16/2022] Open
Abstract
Benzoxazine containing fluorinated aromatic ether nitrile linkage (FAEN-Bz) had been synthesized from 2,6-dichlorobenzonitrile, 4,4'-(hexafluoroisopropylidene)diphenol (bisphenol AF), 3-Aminophenol, formaldehyde, phenol by condensation polymerization and Mannich ring-forming reaction. Structures of the monomer were verified by Proton NMR spectrum (1H-NMR) and Fourier transform infrared spectroscopy (FTIR). Curing behaviors and curing kinetics of designed monomers were investigated and discussed. The activation energy was calculated and possible polymerization mechanisms were also proposed. Then, properties of cured polymers including crosslinking degrees, thermal decomposition, surface wettability and energy, and dielectric properties were studied and discussed. Additionally, programmed integral decomposition temperature (IPDT) was also used to evaluate the thermal stability of final polymers. Results indicated that the incorporation of benzoxazine and nitrile resulted in increased thermal stability and char yields. Moreover, the surface wettability and dielectric properties of poly(FAEN-Bz) can be easily controlled by tuning the curing temperatures and time.
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Affiliation(s)
- Sijing Chen
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Dengxun Ren
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Bo Li
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Kui Li
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Lin Chen
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Mingzhen Xu
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Xiaobo Liu
- Research Branch of Advanced Functional Materials, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
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Zhang S, Ran Q, Fu Q, Gu Y. Preparation of Transparent and Flexible Shape Memory Polybenzoxazine Film through Chemical Structure Manipulation and Hydrogen Bonding Control. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01671] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuai Zhang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Qichao Ran
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Qiang Fu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Yi Gu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
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Toughening effect and mechanism of polyamide 12 and modified montmorillonite in polybenzoxazine resin. JOURNAL OF POLYMER ENGINEERING 2018. [DOI: 10.1515/polyeng-2018-0020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The mechanical properties of polybenzoxazine (PBa) resins were improved by adding polyamide 12 (PA12) and modified montmorillonite (OMMT) as additives. The mechanical properties and thermal stability of PBa and resulting PBa composites were investigated using an Instron universal material testing instrument and dynamic mechanical analysis. The morphologies of the fracture surfaces were characterized by scanning electron microscopy. The results of morphological studies showed that PBa/PA12/OMMT composites exhibit significantly improved mechanical properties and thermal stability compared with that of the pristine PBa. When the OMMT content increased to 1 wt%, the fracture toughness (1.36 MPa·m1/2) and the fracture energy (G
IC, 315.76 J·m−2) of PBa/PA12/OMMT-1 composites increased by 67.9% and 181.4%, respectively, compared with those of the pristine PBa. The thermal stability properties demonstrated that the storage modulus and glass transition temperature (T
g) of PBa/PA12/OMMT composites gradually increased with the addition of OMMT particles. The scanning electron microscopy results indicated that PBa/PA12/OMMT composites possess a toughening mechanism of crack deflection, with a large bulk of voids and debonding induced by PA12 and OMMT clay particles. Moreover, the OMMT might provide microvoid nucleating sites at its surface to release constrains for shear yielding.
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Zhao Y, Xu Y, Xu Q, Fu F, Zhang Y, Endo T, Liu X. Significant Improvement on Polybenzoxazine Toughness Achieved by Amine/Benzoxazine Copolymerization-Induced Phase Separation. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201700517] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Zhao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
| | - Yazhen Xu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
| | - Qingbo Xu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
| | - Feiya Fu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
| | - Yanyan Zhang
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
| | - Takeshi Endo
- Molecular Engineering Institute; Kinki University; Kayanomori Iizuka 820-8555 Japan
| | - Xiangdong Liu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology; Ministry of Education; College of Materials and Textile; Zhejiang Sci-Tech University; Xiasha Higher Education Zone; Hangzhou 310018 China
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Hariharan A, Kesava M, Alagar M, Dinakaran K, Subramanian K. Optical, electrochemical, and thermal behavior of polybenzoxazine copolymers incorporated with tetraphenylimidazole and diphenylquinoline. POLYM ADVAN TECHNOL 2017. [DOI: 10.1002/pat.4122] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Hariharan
- Department of Chemistry; Anna University; Chennai 600025 India
- Centre of Excellence for Advanced Material Manufacturing, Processing and Characterization (CoExAMMPC); VFSTR University; Vadlamudi Guntur 522 213 India
| | - M. Kesava
- Department of Chemistry; Thiruvalluvar University; Vellore 632115 India
| | - M. Alagar
- Centre of Excellence for Advanced Material Manufacturing, Processing and Characterization (CoExAMMPC); VFSTR University; Vadlamudi Guntur 522 213 India
| | - K. Dinakaran
- Department of Chemistry; Thiruvalluvar University; Vellore 632115 India
| | - K. Subramanian
- Department of Chemistry; Anna University; Chennai 600025 India
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