A High Performance Copolyester with Locked Biodegradability: Solid Stability and Controlled Degradation Enabled by Acid-Labile Acetal
文献类型：期刊论文
| 作者 | Hu, Han; Tian, Ying; Kong, Zhengyang; Ying, Wu Bin; Chen, Chao; Li, Fenglong; Zhang, Ruoyu; Zhu, Jin |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2021 |
| 卷号 | 9期号:5页码:2280-2290 |
| 英文摘要 | The gradual degradation of polyester in daily use causes unpredictable failure and restricts its reliable applications. The realization of excellent stability in use and controlled degradation in a specific environment is highly appreciated but still remains challengeable. Here, we demonstrate a new solution via introducing acetal units into poly(butylene succinate): locking the biodegradation of copolyesters by rigid Spiro diacetal, which could be unlocked in strong acidic circumstances. In detail, a series of poly(butylene succinate-co-spirocyclic succinate) (PBSS) copolyesters containing different contents of spiroglycol (SPG) were prepared and characterized. Among them PBSS65 behaved as an excellent candidate for future application, which possessed a high elastic modulus (1.87 GPa) and tensile strength (46 MPa) and moderate elongation at break (252%). It kept stable after melt processing and pH 0-14 soaking, showing solid reliability in daily use. Its biodegradation was locked by the steric hindrance effect of SPG units. Only after treatment in acetone/H2O mixed acidic solution could the biodegradation be triggered. Moreover, it was found that the prolongation of the acid treatment time could accelerate the biodegradation process. The controlled degradation mechanism was proposed to be consisted of acid cleavage of SPG unit and enzymatic degradation of ester group. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22205]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Zhu, J (corresponding author), Chinese Acad Sci, Key Lab Biobased Polymer Mat Technol & Applicat Z, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. 2.Zhang, RY |
| 推荐引用方式 GB/T 7714 | Hu, Han,Tian, Ying,Kong, Zhengyang,et al. A High Performance Copolyester with Locked Biodegradability: Solid Stability and Controlled Degradation Enabled by Acid-Labile Acetal[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(5):2280-2290. |
| APA | Hu, Han.,Tian, Ying.,Kong, Zhengyang.,Ying, Wu Bin.,Chen, Chao.,...&Zhu, Jin.(2021).A High Performance Copolyester with Locked Biodegradability: Solid Stability and Controlled Degradation Enabled by Acid-Labile Acetal.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(5),2280-2290. |
| MLA | Hu, Han,et al."A High Performance Copolyester with Locked Biodegradability: Solid Stability and Controlled Degradation Enabled by Acid-Labile Acetal".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.5(2021):2280-2290. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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