Effect of temperature on C-13-NMR spectra of poly(phenyl glycidyl ethers)
文献类型：期刊论文
| 作者 | Xu, JJ; Hou, KY; Li, LP; Yu, ZH |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2001-10-01 |
| 期号 | 5页码:694-696 |
| 关键词 | C-13-nmr Poly(Phenyl Glycidyl Ether) Recording Temperature |
| ISSN号 | 1000-3304 |
| 英文摘要 | The solubility of poly(phenyl glycidyl ether) s (PPGEs) depends on the stereoregularity. Different solvents and temperatures ( CDCl3/300 K or TCE-d(2)/350 K) were used in C-13-NMR characterization of these polymers. It was necessary to investigate first the effect of temperature on the C-13-NMR spectra of PPGEs. It was. found that all the C-13-NMR signals of PPGE were shifted to the lower magnetic field with the increase of the temperature. The temperature sensitivity of the C-13-NMR chemical shifts for different carbon atoms was different. The pendent CH2 group was most sensitive to the temperature. The change of the C-13-NMR chemical shift for the pendent CH2 group was mainly caused by the temperature change, and the effects of the solvent kind and the stereoregularity of the polymer were of minor importance. The change of temperature did not make any significant influence on the result of the stereoregularity calculation according to the C-13-NMR spectra for PPGEs. Utilizing the different temperature-sensitivity of C-13-NMR signals for different groups, it is possible to separate the overlapped signals by choosing an appropriate temperature. This method was found especially useful in the C-13-NMR characterization of complex polymer samples. |
| 语种 | 英语 |
| WOS记录号 | WOS:000171853600029 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/77851]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, JJ |
| 作者单位 | Chinese Acad Sci, Ctr Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, JJ,Hou, KY,Li, LP,et al. Effect of temperature on C-13-NMR spectra of poly(phenyl glycidyl ethers)[J]. ACTA POLYMERICA SINICA,2001(5):694-696. |
| APA | Xu, JJ,Hou, KY,Li, LP,&Yu, ZH.(2001).Effect of temperature on C-13-NMR spectra of poly(phenyl glycidyl ethers).ACTA POLYMERICA SINICA(5),694-696. |
| MLA | Xu, JJ,et al."Effect of temperature on C-13-NMR spectra of poly(phenyl glycidyl ethers)".ACTA POLYMERICA SINICA .5(2001):694-696. |
入库方式： OAI收割
来源：化学研究所
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