Relationships between the crystal structures and the multiple melting behaviors of poly(ethylene 2,6-naphthalate)
文献类型：期刊论文
| 作者 | Gao, X; Hou, WM; Zhou, JJ; Li, L; Zhao, LQ |
| 刊名 | MACROMOLECULAR MATERIALS AND ENGINEERING
 |
| 出版日期 | 2004-02-20 |
| 卷号 | 289期号:2页码:174-180 |
| 关键词 | Crystal Structures Crystallization Multiple Melting Behavior Poly(Ethylene 2 6-naphthalate) |
| ISSN号 | 1438-7492 |
| DOI | 10.1002/mame.200300257 |
| 英文摘要 | Poly(ethylene 2,6-naphthalate) (PEN) can crystallize either from the glassy state or from the melt state. When crystallized from the glassy state, the sample was quenched from the melt in liquid nitrogen and then annealed at certain crystallization temperatures. When crystallized from the melt state, the sample was cooled to a preset temperature from the melt and then annealed for a certain time. The crystal modifications, morphologies and melting behaviors of PEN were investigated by means of wide-angle X-ray diffraction (WAXD), polarized optical microscopy (POM), small-angle light scattering (SALS) and differential scanning calorimetry (DSC). The results show that an alpha crystal modification of PEN was obtained when PEN crystallized from the glassy state, whilst a beta crystal modification was obtained when PEN crystallized from the melt state at a higher temperature. An hedritic morphology of PEN crystal was obtained with only one melting peak observed in DSC curves when PEN was crystallized at a higher temperature from either the glassy state or the melt state. The alpha crystal modification could also be obtained when PEN was crystallized at a lower temperature from the melt. Spherulitic or banded spherulitic morphologies of PEN crystals, exhibiting multiple melting peaks in DSC curves, were observed when PEN was crystallized at a lower temperature. The multiple melting behaviors of PEN crystals may be associated with spherulitic structures composed of lamellae of varying thickness. |
| 语种 | 英语 |
| WOS记录号 | WOS:000220331600005 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55147]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Gao, X |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China 2.Shenyang Inst Chem Technol, Coll Chem Engn, Liaoning 110021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, X,Hou, WM,Zhou, JJ,et al. Relationships between the crystal structures and the multiple melting behaviors of poly(ethylene 2,6-naphthalate)[J]. MACROMOLECULAR MATERIALS AND ENGINEERING,2004,289(2):174-180. |
| APA | Gao, X,Hou, WM,Zhou, JJ,Li, L,&Zhao, LQ.(2004).Relationships between the crystal structures and the multiple melting behaviors of poly(ethylene 2,6-naphthalate).MACROMOLECULAR MATERIALS AND ENGINEERING,289(2),174-180. |
| MLA | Gao, X,et al."Relationships between the crystal structures and the multiple melting behaviors of poly(ethylene 2,6-naphthalate)".MACROMOLECULAR MATERIALS AND ENGINEERING 289.2(2004):174-180. |
入库方式： OAI收割
来源：化学研究所
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