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A 1H NMR Study of the Kinetics of the Reaction of Diisocyanates with Ethlene Oxide-Dimethylsiloxane-Ethylene Oxide Block Copolymer |
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| Authors: | Giuliana Ricca Mario Pegoraro Febo Severini Changjun Fu |
| Affiliation: | 1. Centro di studio per le sostanze naturali del CNR, Università di Milano, Dipartimento di chimica organica e industriale , Via Venezian 21, MILANO , 20133 , Italy;2. Dipartimento di Chimica Industriale ed , Ingegneria Chimica “G. Natta” del Politecnico , Piazza L. Da Vinci 32, MILANO , 20133 , Italy |
| Abstract: | The reaction of pure 2–4 and 2–6 tolylene diisocyanate with an OH terminated ethylene oxide-dimethylsiloxane-ethylene oxide ABA block copolymer was carried out directly in a n.m.r. tube. The kinetic of the reaction was studied by 1H nmr spectroscopy. |
| Keywords: | Kinetcs polyuretane condensation |