caa a22 4500 475763947 CHVBK 20180406123559.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1007/s003960000294 doi (NATIONALLICENCE)springer-10.1007/s003960000294 Rheology of nanocomposites based on layered silicates and polyamide-12 [Elektronische Daten] [B. Hoffmann, J. Kressler, G. Stöppelmann, Chr. Friedrich, G.-M. Kim]  Nanocomposites based on polyamide-12 (PA-12) and layered silicates are synthesized and analyzed with respect to their morphological and rheological properties. Transmission electron microscopy shows the fine dispersion of silicate layers in a PA-12 matrix. Different swelling agents for the clay (protonated aminododecanoic acid or water) are used. This allows the molar mass of PA-12 to be controlled during the preparation of the nanocomposites. When aminododecanoic acid is used as a swelling agent, the exfoliated silicate layers are chemically bonded to the matrix, whereas the use of water as a swelling agent leads to exfoliated silicate layers well dispersed in the polymer matrix without tethered polymer chains. The rheological behavior of the nanocomposites differs extremely from that of the pure PA-12 matrices. A qualitative description of the rheology of these nanocomposites is provided. Springer-Verlag Berlin Heidelberg, 2000 Key words Nanocomposites nationallicence Polyamide nationallicence Clay nationallicence Rheology nationallicence Hoffmann B. Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum Albert-Ludwigs-Universität Stefan-Meier-Strasse 21 79104 Freiburg, Germany, DE aut Kressler J. Martin-Luther-Universität Halle-Wittenberg Fachbereich Ingenieurwissenschaften 06099 Halle (Saale), Germany e-mail: joerg.kressler@iw.uni-halle.de Tel.: +49-3461-462760 Fax: +49-3461-462592, DE aut Stöppelmann G. EMS-Chemie AG, 7013 Domat/Ems Switzerland, CH aut Friedrich Chr Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum Albert-Ludwigs-Universität Stefan-Meier-Strasse 21 79104 Freiburg, Germany, DE aut Kim G.-M Eindhoven University of Technology Faculty of Mechanical Engineering-Section Materials Technology 5600 MB Eindhoven The Netherlands, NL aut https://doi.org/10.1007/s003960000294 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960000294 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hoffmann B. Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum Albert-Ludwigs-Universität Stefan-Meier-Strasse 21 79104 Freiburg, Germany, DE aut NATIONALLICENCE 700 1- Kressler J. Martin-Luther-Universität Halle-Wittenberg Fachbereich Ingenieurwissenschaften 06099 Halle (Saale), Germany e-mail: joerg.kressler@iw.uni-halle.de Tel.: +49-3461-462760 Fax: +49-3461-462592, DE aut NATIONALLICENCE 700 1- Stöppelmann G. EMS-Chemie AG, 7013 Domat/Ems Switzerland, CH aut NATIONALLICENCE 700 1- Friedrich Chr Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum Albert-Ludwigs-Universität Stefan-Meier-Strasse 21 79104 Freiburg, Germany, DE aut NATIONALLICENCE 700 1- Kim G.-M Eindhoven University of Technology Faculty of Mechanical Engineering-Section Materials Technology 5600 MB Eindhoven The Netherlands, NL aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer