caa a22 4500 46319067X CHVBK 20180406164908.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10973-006-7519-0 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7519-0 Influence of the addition of erbium and ytterbium triflates in the curing kinetics of a DGEBA/ o -tolybiguanide powder mixture [Elektronische Daten] [S. García, A. Serra, X. Ramis, J. Suay] Solid bisphenol-A epoxy resin (DGEBA) of medium molecular mass was cured using o-tolylbiguanide (TBG) as cross-linking agent. In order to improve the kinetics of the reactive system, two Lewis acid catalysts (erbium(III) and ytterbium(III) trifluoromethanesulfonates) were added in proportions of 1 phr. The kinetic study was performed by dynamic scanning calorimetry (DSC) and the complete kinetic triplet (E, A and g(α)) determined. The kinetic analysis was performed with an integral isoconversional procedure (model-free), and the kinetic model was determined by the Coats-Redfern method and through the compensation effect (IKR). All the systems followed the m=1.5/n=0.5 isothermal curing model simulated from non-isothermal experiments. The addition of a little proportion of ytterbium or erbium triflates accelerated the curing process. In order to extract further information about the role of the lanthanide triflates added to epoxy/TBG systems, the kinetic results were compared with our previous kinetic studies made on DGEBA/lanthanide triflates initiated systems. Springer Science+Business Media LLC, 2007 catalyst nationallicence epoxy nationallicence erbium triflate nationallicence kinetics (polym.) nationallicence ytterbium triflate nationallicence García S. Àrea de Ciència dels Materials, Departament d'Enginyeria de Sistemes Industrials i Disseny, Universitat Jaume I, Avda Vicent Sos Baynat s/n, 12071, Castellón, Spain aut Serra A. Departament de Q. Analítica i Q. Orgànica, Facultat de Química, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007, Tarragona, Spain aut Ramis X. Laboratori de Termodinàmica, Escola Tècnica Superior Enginyeria Industrial Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028, Barcelona, Spain aut Suay J. Centro de Biomateriales, Universitat Politècnica de València, Camino de Vera s/n, 46071, València, Spain aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/1(2007-07-01), 223-231 1388-6150 89:1<223 2007 89 10973 https://doi.org/10.1007/s10973-006-7519-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7519-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- García S. Àrea de Ciència dels Materials, Departament d'Enginyeria de Sistemes Industrials i Disseny, Universitat Jaume I, Avda Vicent Sos Baynat s/n, 12071, Castellón, Spain aut NATIONALLICENCE 700 1- Serra A. Departament de Q. Analítica i Q. Orgànica, Facultat de Química, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007, Tarragona, Spain aut NATIONALLICENCE 700 1- Ramis X. Laboratori de Termodinàmica, Escola Tècnica Superior Enginyeria Industrial Barcelona, Universitat Politècnica de Catalunya, Diagonal 647, 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- Suay J. Centro de Biomateriales, Universitat Politècnica de València, Camino de Vera s/n, 46071, València, Spain aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 89/1(2007-07-01), 223-231 1388-6150 89:1<223 2007 89 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer