The first observation, according to the best of knowledge, of a high-resolution 17.735-MHz 1 H NMR spectrum of uncured Heva rubber in a CS 2 solution was made in 1957 by Gutowsky et al., ...

National Research Institute of Fisheries Science, 2-12-4 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-8648, Japan ...

§ NMR Centre, School of Chemical Sciences, University of Auckland Private Bag 92019, Auckland 1142, New Zealand ‡ Polymer Electronics Research Centre, School of Chemical Sciences, University of ...