Optically active poly(menthy1 vinyl ethers) prepared under different polymerization conditions have been studied by 13C NMR. Resonance assignments, relaxation times TI, 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, in terms 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.
Carbon-13 NMR study of poly(menthyl vinyl ether) obtained by different catalytic systems / Delfini, Maurizio; Conti, Filippo; M., Paci; Anna Laura, Segre; Roberto, Solaro; Emo, Chiellini. - In: MACROMOLECULES. - ISSN 0024-9297. - STAMPA. - 16:7(1983), pp. 1212-1215. [10.1021/ma00241a032]
Carbon-13 NMR study of poly(menthyl vinyl ether) obtained by different catalytic systems
DELFINI, Maurizio;CONTI, Filippo;
1983
Abstract
Optically active poly(menthy1 vinyl ethers) prepared under different polymerization conditions have been studied by 13C NMR. Resonance assignments, relaxation times TI, 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, in terms 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
