期刊論文
| 學年 | 107 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2019-01-01 |
| 作品名稱 | Effects of self-assembled sorbitol-derived compounds on the structures and properties of biodegradable poly (L-lactic acid) prepared by melt blending |
| 作品名稱（其他語言） | |
| 著者 | Wei-Chi Lai; Yu-Chen Lee |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Polymer Research 26(1), 10 |
| 摘要 | The microstructures and characteristics of biodegradable poly(L-lactic acid) (PLLA) with 1,3:2,4-dibenzylidene-D-sorbitol (DBS) prepared by melt blending were investigated in this study. DBS was added as a diluent to PLLA in the melted state, leading to the disentanglement of PLLA chains and the enhancement of PLLA mobility. Upon cooling from the melt, the formation of self-assembled DBS nanofibrils enhanced the hardness and stiffness of PLLA. DBS nanofibrils were measured with diameters of 40–50 nm, as observed using scanning electron microscopy (SEM). In addition, the thermal and crystallization behaviors of PLLA were significantly influenced by the addition of DBS. The ordered and regular α-crystals of PLLA were favored when DBS was added. The crystallization rates of PLLA are tunable by varying the isothermal crystallization temperatures of PLLA and the amounts of DBS. The presence of DBS interfered with the crystallization rates of PLLA. However, at higher crystallization temperatures of PLLA, DBS facilitated the formation of nuclei, leading to an increase in the crystallization rates of PLLA. Furthermore, the hydrophilicity of PLLA was significantly improved by a further increase in DBS concentration. |
| 關鍵字 | PLLA;Self-assembled;Nanofibrils;Hydrophilicity |
| 語言 | en |
| ISSN | 1022-9760 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | NLD |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/118254 ) |