Microstructure Analysis of Poly(cyclopentene carbonate)s at the Diad Level
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Liu, Ye
- 通讯作者：
- Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
- 合写作者：
- Li, Rong-Rong,Lu, Xiao-Bing
- 发表时间：
- 2015-10-13
- 发表刊物：
- MACROMOLECULES
- 收录刊物：
- SCIE、EI、Scopus
- 文献类型：
- J
- 卷号：
- 48
- 期号：
- 19
- 页面范围：
- 6941-6947
- ISSN号：
- 0024-9297
- 摘要：
- The spectroscopic assignment of poly(cyclopentene carbonate)s at the diad level was performed by using two kinds of model compounds: isotactic and syndiotactic dimers of cyclopentene carbonate unit. By comparing the signals in the carbonyl region, we concluded that the signals at 153.85 and 153.78 ppm in the C-13 NMR spectrum of poly(cydopentene carbonate) were attributed to m-diad and r-diad, respectively. The signals at 82.61 and 82.53 ppm in the C-13 NMR spectrum were assigned to m-diad and r-diad peak of methine resonance, respectively. It was found that the carbonate carbon signals were sensitive toward the stereocenters on adjacent epoxide ring-opening units. The syndiotactic and isotactic diads matched well with the microstructures of the stereoregular poly(cydopentene carbonate)s that were prepared by using chiral dinuclear Co(III) complex catalysts.
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- 否
