Carbon-13 NMR study of poly(menthyl vinyl ether) obtained by different catalytic systems
Carbon-13 NMR study of poly(menthyl vinyl ether) obtained by different catalytic systems
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不同催化体系获得的聚(薄荷基乙烯基醚)的碳13 NMR研究
DOI：
10.1021/ma00241a032
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发表时间：
1983
期刊：
影响因子：
--
通讯作者：
E. Chiellini
中科院分区：
文献类型：
--
作者：
M. Delfini;F. Conti;M. Paci;A. Segre;R. Solaro;E. Chiellini
用~（13）CNMR研究了不同聚合条件下合成的光学活性聚薄荷基乙烯基醚。在21.14和46.15 kG下获得共振归属、弛豫时间Tu和核Overhauser增强因子（NOEF）。这些参数的分析给出了关于主链构型、二联体立构规整度和侧链流动性的信息。结果归因于在聚合过程中庞大的薄荷基基团和增长的链之间的强空间相互作用。
Optically active poly (menthyl vinyl ethers) prepared under different polymerization conditions have been studied by 13C NMR. Resonance assignments, relaxation times Tu and nuclear Overhauser enhancement factors (NOEF) were obtained at 21.14 and 46.15 kG. Analysis of these parameters gives information about main-chain configuration, interms of dyad tacticity, and about side-chain mobility. The results are attributed to strong steric interactions between the bulky menthyl group and the growing chain during the polymerization process.