Synthesis and properties of responsive self-healing polyurethane containing dynamic disulfide bonds
文献类型：期刊论文
| 作者 | Qu, Qiqi1,2; Wang, Hua1 ; He, Jing1,2; Da, Yunsheng1,2; Zhu, Menghan1,2; Liu, Yanyan1; Tian, Xingyou1
|
| 刊名 | HIGH PERFORMANCE POLYMERS
 |
| 出版日期 | 2021-06-18 |
| ISSN号 | 0954-0083 |
| 关键词 | Self-healing responsive polyurethane polycaprolactone dynamic disulfide bonds |
| DOI | 10.1177/09540083211022818 |
| 通讯作者 | Wang, Hua(wanghua@issp.ac.cn) |
| 英文摘要 | The polymers with pH responsiveness and temperature sensitivity exhibit important applications in many fields. To endow the responsive polymers with self-healing is meaningful work, which contributes to increase their service life and reduce waste of resources significantly. In this research, a series of pH-responsive polyurethanes containing dynamic disulfide bonds and carboxylic acid functional groups were prepared by mixing polycaprolactone diol (PCL), hexamethylene diisocyanate (HDI), 2,2-dimethylolbutyric acid, and bis(2-hydroxyethyl) disulfide. The structure of the polymer was confirmed by some characterization methods such as infrared absorption spectroscopy, Raman scattering spectroscopy, X-ray diffraction, and differential scanning calorimetry. Many performances of the polymer such as the contact angle, thermal stability, mechanics, and self-healing properties can be adjusted by changing the functional units of polyurethanes. The dynamic disulfide bonds in the main chain were observed no harm to the pH response performance, instead which were beneficial to the promotion of heat resistance, tensile properties, and self-healing performance of polyurethane. The elongation at break and the tensile strength are increased by 85.3% and 54.9%, respectively. All the polyurethane exhibited considerable self-healing effects at 110 degrees C, with the highest healing efficiency reaching 93.7%, as a result of the dissociation of hydrogen bonds and the exchange reaction of disulfide bonds. |
| WOS关键词 | CHEMISTRY |
| 资助项目 | National Key R&D Program of China[2017YFB0406200] ; Major science and technology projects of Anhui Province[18030901083] ; Youth Innovation Promotion Association, CAS[2014288] |
| WOS研究方向 | Polymer Science |
| 语种 | 英语 |
| 出版者 | SAGE PUBLICATIONS LTD |
| WOS记录号 | WOS:000669071300001 |
| 资助机构 | National Key R&D Program of China ; Major science and technology projects of Anhui Province ; Youth Innovation Promotion Association, CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123445]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Hua |
| 作者单位 | 1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Qiqi,Wang, Hua,He, Jing,et al. Synthesis and properties of responsive self-healing polyurethane containing dynamic disulfide bonds[J]. HIGH PERFORMANCE POLYMERS,2021. |
| APA | Qu, Qiqi.,Wang, Hua.,He, Jing.,Da, Yunsheng.,Zhu, Menghan.,...&Tian, Xingyou.(2021).Synthesis and properties of responsive self-healing polyurethane containing dynamic disulfide bonds.HIGH PERFORMANCE POLYMERS. |
| MLA | Qu, Qiqi,et al."Synthesis and properties of responsive self-healing polyurethane containing dynamic disulfide bonds".HIGH PERFORMANCE POLYMERS (2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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