Structural characterization of wild rubbers, microstructure of the rubber extracted from ficus elastica by C-13-NMR

摘要

Low molecular weight fractions of polyisoprene extracted from Ficus elastica Herb. ex Hornem. were studied by C-13-NMR. The identification of 2-3 trans terminal units at the end of the polymer chain needed the acquisition of more than 17 000 transients. (C) 2000 Elsevier Science Ltd. All rights reserved. [References: 22]