Crystallization kinetics of poly(ether ether ketone) (PEEK) from its metastable melt
文献类型：期刊论文
| 作者 | Tan SS ; Su AH ; Luo J ; Zhou EL |
| 刊名 | polymer
 |
| 出版日期 | 1999 |
| 卷号 | 40期号:5页码:1223-1231 |
| 关键词 | TIME-RESOLVED SAXS X-RAY-SCATTERING BEHAVIOR MORPHOLOGY GLASS STATE WAXS DSC |
| ISSN号 | 0032-3861 |
| 通讯作者 | zhou, el, chinese acad sci, changchun inst appl chem, polymer phys lab, changchun 130022, peoples r china |
| 中文摘要 | after isothermal crystallization of the amorphous poly(ether ether ketone), double endothermic behaviour can be found through differential scanning calorimetry experiments. during the heating scan of semicrystalline peek, a metastable melt, which comes from the melt of the thinner lamellar crystal populations, can be obtained between these two endotherms. the metastable melt can recrystallize immediately just above the lower melting temperature and form slightly thicker lamellae than the original ones. the thickness and the perfection depend upon the crystallization time and the crystallization temperature. by comparing the tem morphological observations of the samples before and after partial melting, it can be shown that lamellar crystals, having different thermodynamic stability, form during isothermal crystallization. after partial melting, only the type of lamellar crystal exhibiting the higher thermodynamic stability remains. wide angle x-ray diffraction measurements shows a slightly change in the crystallinity of the samples before and after the partial melting. small angle x-ray scattering results exhibit a change in the long period of the lamellar crystals before and after the partial melting process. the crystallization kinetics of the metastable melt can be determined by means of differential scanning calorimetry. the kinetic analysis showed that the isothermal crystallization of the metastable peek melt proceeds with an avrami exponent of n = 1.0 similar to 1.4, reflecting that probably one-dimensional or an irregular line growth of the crystal occurred between the existing main lamellae with heterogeneous nucleation. (c) 1998 elsevier science ltd. all rights reserved. |
| 收录类别 | CSCD收录国内期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000076942500015 |
| 公开日期 | 2010-11-04 |
| 源URL | [http://202.98.16.49/handle/322003/22083]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tan SS,Su AH,Luo J,et al. Crystallization kinetics of poly(ether ether ketone) (PEEK) from its metastable melt[J]. polymer,1999,40(5):1223-1231. |
| APA | Tan SS,Su AH,Luo J,&Zhou EL.(1999).Crystallization kinetics of poly(ether ether ketone) (PEEK) from its metastable melt.polymer,40(5),1223-1231. |
| MLA | Tan SS,et al."Crystallization kinetics of poly(ether ether ketone) (PEEK) from its metastable melt".polymer 40.5(1999):1223-1231. |
入库方式： OAI收割
来源：长春应用化学研究所
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