An efficient, food contact accelerator for stereocomplexation of high-molecular-weight poly(L-lactide)/ poly(D-lactide) blend under nonisothermal crystallization
文献类型：期刊论文
| 作者 | Chen, Y; Hua, WQ; Zhang, ZC; Xu, JZ; Bian, FG; Zhong, GJ; Xu, L; Li, ZM |
| 刊名 | POLYMER
 |
| 出版日期 | 2019 |
| 卷号 | 170期号:-页码:54—64 |
| 关键词 | ENANTIOMERIC POLY(LACTIC ACID)S PHASE MORPHOLOGY HYDROGEN-BOND POLYLACTIDE MELT CRYSTALS PERSPECTIVE BEHAVIOR HEAT |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2019.03.003 |
| 文献子类 | 期刊论文 |
| 英文摘要 | It is an effective strategy to improve the heat resistance of polylactide (PLA) via forming stereocomplex crystals (SCs) in poly(L-lactide) (PLLA)/poly(D-lactide) (PDLA) blend. In this work, pentearythritol (PENTA), which is an environment-friendly polyhydroxy compound for food packaging, is selected to facilitate the SC crystallization and suppress the HC crystallization for HMW PLLA/PDLA blend. Impressively, only 3 wt% PENTA is added, the exclusive SCs with high content (X-c,X-SC = 50%) can be obtained, which exhibits a high promotion efficiency of crystallization of SCs. Interestingly, with PENTA content ascending, the crystallinity of SCs increases drastically first and then in a relatively slow manner. Furthermore, Miscibility with high content of PENTA leads to a relatively looser packing of SC lamella in the blend confirmed by scanning electron microscope (SEM) due to intercalation of PENTA between crystal lamella. The mechanism of how PENTA facilitates the formation of SCs at molecular level is also proposed in this work. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31467]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Sichuan, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Y,Hua, WQ,Zhang, ZC,et al. An efficient, food contact accelerator for stereocomplexation of high-molecular-weight poly(L-lactide)/ poly(D-lactide) blend under nonisothermal crystallization[J]. POLYMER,2019,170(-):54—64. |
| APA | Chen, Y.,Hua, WQ.,Zhang, ZC.,Xu, JZ.,Bian, FG.,...&Li, ZM.(2019).An efficient, food contact accelerator for stereocomplexation of high-molecular-weight poly(L-lactide)/ poly(D-lactide) blend under nonisothermal crystallization.POLYMER,170(-),54—64. |
| MLA | Chen, Y,et al."An efficient, food contact accelerator for stereocomplexation of high-molecular-weight poly(L-lactide)/ poly(D-lactide) blend under nonisothermal crystallization".POLYMER 170.-(2019):54—64. |
入库方式： OAI收割
来源：上海应用物理研究所
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