| Effects of Crystallization Temperature and Blend Ratio on the Crystal Structure of Poly(butylene adipate) in the Poly(butyleneadipate)/Poly(butylene succinate) Blends |
| |
| 作者姓名： | 王学川 晏超 |
| |
| 作者单位： | [1]Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xian 710021, China [2]School of Material Science ＆ Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China |
| |
| 基金项目： | This work was financially supported by the National Natural Science Foundation of China （Nos. 21204045 and 21276151）, Natural Science Basic Research Plan in Shaanxi Province of China （No. 2011JQ2004）, and Key Scientific Research Group of Shaanxi Province （No. 2013KCT-08）. |
| |
| 摘 要： | The effects of crystallization temperature and blend ratio on the polymorphic crystal structures of poly(butylene adipate)(PBA) in poly(butylene succinate)(PBS)/poly(butylene adipate)(PBS/PBA) blends were studied by means of differential scanning calorimetry(DSC), wide-angle X-ray diffraction(XRD) and atomic force microscopy(AFM). It was revealed that the polymorphism of PBA can be regulated by the blend ratio even in a non-isothermal crystallization process. The results demonstrate that high temperature favors flat-on α crystals, while low temperature contributes to edge-on β crystals. It was also found that the effect of blend ratio on the crystallization mechanism of PBA is well coincident with that of the crystallization temperature. The increment of PBS content in the PBS/PBA blend gives rise to more β-form crystals of PBA. For those PBS/PBA blends with low PBA content, the interlamellar phase segregation of PBA makes its molecular chains so difficult to diffuse from one isolated microdomain to another that high crystallization temperature and sufficiently long crystallization time will be required if the PBA α-type crystals are targeted.
|
| 关 键 词： | 聚丁二酸丁二醇酯 晶体结构 己二酸 共混物 晶化温度 混纺比 广角X射线衍射 结晶温度 |
Effects of crystallization temperature and blend ratio on the crystal structure of poly(butylene adipate) in the poly(butylene adipate)/poly(butylene succinate) blends |
| |
| Hai-jun Wang,Hui-ping Feng,Xue-chuan Wang,Pei-ying Guo,Ting-shan Zhao,Long-fang Ren,Xi-huai Qiang,Yu-hao Xiang,Chao Yan.Effects of Crystallization Temperature and Blend Ratio on the Crystal Structure of Poly(butylene adipate) in the Poly(butyleneadipate)/Poly(butylene succinate) Blends[J].Chinese Journal of Polymer Science,2014,32(4):488-496. |
| |
| Authors: | Hai-jun Wang Hui-ping Feng Xue-chuan Wang Pei-ying Guo Ting-shan Zhao Long-fang Ren Xi-huai Qiang Yu-hao Xiang Chao Yan |
| |
| Institution: | 1. Key Laboratory of Chemistry and Technology for Light Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xian, 710021, China
2. School of Material Science & Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China
|
| |
| Abstract: | The effects of crystallization temperature and blend ratio on the polymorphic crystal structures of poly(butylene adipate) (PBA) in poly(butylene succinate) (PBS)/poly(butylene adipate) (PBS/PBA) blends were studied by means of differential scanning calorimetry (DSC), wide-angle X-ray diffraction (XRD) and atomic force microscopy (AFM). It was revealed that the polymorphism of PBA can be regulated by the blend ratio even in a non-isothermal crystallization process. The results demonstrate that high temperature favors flat-on α crystals, while low temperature contributes to edge-on β crystals. It was also found that the effect of blend ratio on the crystallization mechanism of PBA is well coincident with that of the crystallization temperature. The increment of PBS content in the PBS/PBA blend gives rise to more β-form crystals of PBA. For those PBS/PBA blends with low PBA content, the interlamellar phase segregation of PBA makes its molecular chains so difficult to diffuse from one isolated microdomain to another that high crystallization temperature and sufficiently long crystallization time will be required if the PBA α-type crystals are targeted. |
| |
| Keywords: | Blends Crystallization Poly（butylene adipate） Poly（butylene succinate） |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
