Experimental and Theoretical Study on Glycolic Acid Provided Fast Bio/Seawater-Degradable Poly(Butylene Succinate-co-Glycolate)
文献类型：期刊论文
| 作者 | Hu, Han; Li, Jiayi; Tian, Ying; Chen, Chao; Li, Fenglong; Ying, Wu Bin; Zhang, Ruoyu; Zhu, Jin |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2021 |
| 卷号 | 9期号:10页码:3843-3852 |
| 英文摘要 | The very slow degradation of biodegradable polymers in the marine environment is due to the lack of dedicated degradation enzymes in open seas. As a result, introducing monomers that have a fast hydrolysis process is required to accelerate seawater degradation. Poly(butylene succinate-co-glycolate) (PBSGA) copolyesters with glycolic acid (GA) units ranging from 5 to 40% were synthesized by our newly developed polymerizing method based on oligo(glycolic acid). The results of H-1-NMR and GPC revealed that short GA segments were evenly distributed between BS segments, obtaining random copolyesters with a weight-average molecular weight over 6.24 * 10(4) g/mol. The copolymerized GA units hinder its crystallization capability and increase hydrophilicity of the PBSGAs, which still displayed mechanical properties comparable or even better than most biodegradable polymers. Fast degradation in seawater and enzymatic environments (Candida antarctica lipase B enzymes) is proved experimentally. The quick decomposition in seawater was originated from accelerated hydrolysis. For instance, the weight loss of PBSGA40 (compositions of GA units) exceeded 22% after 49 days. Possible degradation mechanisms were proposed based on Fukui function analysis and frontier molecular orbital calculation. Additionally, the energy barrier for hydrolysis was calculated by the density functional theory method, indicating that the hydrolysis of the polymer chain became more and more easy with the increase in GA units. At last, the addition of GA units only had a mild effect on the shelf life of the PBSGAs. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/22091]  |
| 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, Ningbo Inst Mat Technol & Engn, Key Lab Biobased Polymer Mat Technol & Applicat Z, Ningbo 315201, Peoples R China. 2.Zhang, RY |
| 推荐引用方式 GB/T 7714 | Hu, Han,Li, Jiayi,Tian, Ying,et al. Experimental and Theoretical Study on Glycolic Acid Provided Fast Bio/Seawater-Degradable Poly(Butylene Succinate-co-Glycolate)[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2021,9(10):3843-3852. |
| APA | Hu, Han.,Li, Jiayi.,Tian, Ying.,Chen, Chao.,Li, Fenglong.,...&Zhu, Jin.(2021).Experimental and Theoretical Study on Glycolic Acid Provided Fast Bio/Seawater-Degradable Poly(Butylene Succinate-co-Glycolate).ACS SUSTAINABLE CHEMISTRY & ENGINEERING,9(10),3843-3852. |
| MLA | Hu, Han,et al."Experimental and Theoretical Study on Glycolic Acid Provided Fast Bio/Seawater-Degradable Poly(Butylene Succinate-co-Glycolate)".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9.10(2021):3843-3852. |
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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