Polymorphism and side group location of ethylene copolymers characterized by FTIR and NMR spectroscopy
文献类型：期刊论文
| 作者 | Su, ZQ; Zhao, Y; Xu, YZ; Zhang, XQ; Zhu, SN; Wang, DJ; Han, CC; Xu, DF |
| 刊名 | POLYMER
 |
| 出版日期 | 2004-05-13 |
| 卷号 | 45期号:11页码:3577-3581 |
| 关键词 | Poly(Ethylene-co-vinyl Acetate) Poly(Ethylene-co-vinyl Alcohol) Fourier Transform Infrared |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2004.03.076 |
| 英文摘要 | Fourier transform infrared spectroscopy (FTIR) was used to characterize the polymorphism, crystalline phase transformation, and side croup location of ethylene copolymers (poly(ethylene-co-vinyl acetate), ab. EVA and poly(ethylene-co-vinyl alcohol), ab. EVOH). Sample films were prepared through a melt-pressing method, and submitted to cryogenic FTIR spectra measurement. Besides the occurrence of a normally, orthorhombic crystalline phase (OCP), a monoclinic crystalline phase (MCP) was also detected for EVA copolymers with a relatively higher comonomer content (> 14 wt%). The annealing temperatures greatly influence the transformation from MCP to OCP. As for EVOH copolymers. only thermodynamically stable OCP was found to exist in the crystalline region, and the hydroxyl groups were proved to enter the crystalline region of ethylene segments, while the side groups of EVA exist predominantly in the amorphous region. (C) 2004 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000221486300001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/55711]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, DJ |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, ZQ,Zhao, Y,Xu, YZ,et al. Polymorphism and side group location of ethylene copolymers characterized by FTIR and NMR spectroscopy[J]. POLYMER,2004,45(11):3577-3581. |
| APA | Su, ZQ.,Zhao, Y.,Xu, YZ.,Zhang, XQ.,Zhu, SN.,...&Xu, DF.(2004).Polymorphism and side group location of ethylene copolymers characterized by FTIR and NMR spectroscopy.POLYMER,45(11),3577-3581. |
| MLA | Su, ZQ,et al."Polymorphism and side group location of ethylene copolymers characterized by FTIR and NMR spectroscopy".POLYMER 45.11(2004):3577-3581. |
入库方式： OAI收割
来源：化学研究所
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