caa a22 4500 465787541 CHVBK 20180323112013.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF00297322 doi (NATIONALLICENCE)springer-10.1007/BF00297322 The hydrolytic polymerization of ε-caprolactone by triphenyltin acetate [Elektronische Daten] [Mitchell Bassi, Anne Padias, H. Hall Jr.] The polymerization of ε-caprolactone (CL) using triphenyltin acetate has been investigated. Polymers with broad MWD were obtained in almost quantitative yield. After an initial induction period, the polymerization showed zero order kinetics with respect to monomer and nearly first order with respect to catalyst. The mechanism of the propagation reaction is proposed to proceed via an ester alcoholysis, with initiation by traces of water. The zero order kinetics are explained as follows: the tin catalyst is coordinated by the cyclic lactone, monomer addition to the polymer chain in the rate-determining step results in formation of an acyclic ester link, which is no longer a strong donor, and leads to a coordinatively unsaturated tin species. Springer-Verlag, 1990 Bassi Mitchell C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut Padias Anne C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut Hall Jr. H. C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut Polymer Bulletin Springer-Verlag 24/2(1990-08-01), 227-232 0170-0839 24:2<227 1990 24 289 https://doi.org/10.1007/BF00297322 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00297322 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bassi Mitchell C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Padias Anne C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut NATIONALLICENCE 700 1- Hall Jr H. C.S. Marvel Laboratory, Chemistry Department, University of Arizona, 85721, Tucson, AZ, USA aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 24/2(1990-08-01), 227-232 0170-0839 24:2<227 1990 24 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer