| Autor: |
Qiong Zhou, Yun-Yang Song, Kai Hou, Hai-Mu Ye, Gui-Wu Lu, Jun Xu |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
Polymer. 55:3054-3061 |
| ISSN: |
0032-3861 |
| DOI: |
10.1016/j.polymer.2014.05.011 |
| Popis: |
Stretch-induced structural changes of poly(butylene adipate) at various temperatures were systematically investigated by X-ray diffraction method. It was found that tensile deformation could lead to both occurrence of α to β and β to α crystal transition via solid–solid process. Experimental results shows that either α or β form can be adopted as the stable phase for PBA crystal depending on the competition between tensile strain and temperature. Higher temperature favors β to α crystal transformation, while larger strain would result in α to β crystal transformation. Due to the conversion of crystal stability during stretching, a unique “β to α to β” transformation phenomenon of PBA appears at appropriate temperature for original β spline. This study provides evidence that both temperature and tensile strain can alter the relative stability of polymorphic crystals of semi-crystalline polymers. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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