Stabilization of poly(lactic acid) by polycarbodiimide
文献类型：期刊论文
| 作者 | Yang, Lixin1,2; Chen, Xuesi1; Jing, Xiabin1 |
| 刊名 | POLYMER DEGRADATION AND STABILITY
 |
| 出版日期 | 2008-10-01 |
| 卷号 | 93期号:10页码:1923-1929 |
| 关键词 | Poly(L-lactic Acid) Polycarbodiimide Thermostability Thermal Degradation Hydrolysis |
| ISSN号 | 0141-3910 |
| DOI | 10.1016/j.polymdegradstab.2008.06.016 |
| 英文摘要 | Polycarbodiimide (CDI) was used to improve the thermal stability of poly(L-lactic acid) (PLA) during processing. The properties of PLA containing various amounts of CDI were characterized by GPC, DSC, rheology, and tensile tests. The results showed that an addition of CDI in an amount of 0.1-0.7 wt% with respect to PLA led to stabilization of PLA at even 210 degrees C for up to 30 min, as evidenced by much smaller changes in molecular weight. melt viscosity, and tensile strength and elongation compared to the blank PLA samples. In order to examine the possible stabilization mechanism, CDI was reacted with water, acetic acid, L-lactic acid, ethanol and low molecular weight PLA. The molecular structures of the reaction products were measured with FTIR. The results showed that CDI could react with the residual or newly formed moisture and lactic acid, or carboxyl and hydroxyl end groups in the PLA samples, and thus hamper the thermal degradation and hydrolysis of PLA. (C) 2008 Elsevier Ltd. All rights reserved |
| 语种 | 英语 |
| WOS记录号 | WOS:000260648800029 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64429]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jing, Xiabin |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Lixin,Chen, Xuesi,Jing, Xiabin. Stabilization of poly(lactic acid) by polycarbodiimide[J]. POLYMER DEGRADATION AND STABILITY,2008,93(10):1923-1929. |
| APA | Yang, Lixin,Chen, Xuesi,&Jing, Xiabin.(2008).Stabilization of poly(lactic acid) by polycarbodiimide.POLYMER DEGRADATION AND STABILITY,93(10),1923-1929. |
| MLA | Yang, Lixin,et al."Stabilization of poly(lactic acid) by polycarbodiimide".POLYMER DEGRADATION AND STABILITY 93.10(2008):1923-1929. |
入库方式： OAI收割
来源：化学研究所
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