caa a22 4500 378903160 CHVBK 20180305123523.0 cr unu---uuuuu 161128e20041201xx s 000 0 eng 10.1515/epoly.2004.4.1.608 doi (NATIONALLICENCE)gruyter-10.1515/epoly.2004.4.1.608 Molar mass characterization of hydrophilic copolymers, 1 Size exclusion chromatography of neutral and anionic (meth)acrylate copolymers [Elektronische Daten] [Martina Adler, Harald Pasch, Christian Meier, Raimund Senger, Hans-Günter Koban, Michael Augenstein, Günter Reinhold] A robust and reproducible method for the molar mass analysis of neutral and anionic copolymers based on methacrylic acid and different (meth)acrylates has been developed. Size exclusion chromatography (SEC) using a novel polyester- based packing as the stationary phase and dimethylacetamide (DMAC) as the mobile phase yields highly accurate results for copolymers with a methacrylic acid content up to 50 wt.-%. To suppress the different polar and ionic interactions between the sample molecules, the stationary phase and the eluent, DMAC was modified with LiBr and acetic acid. Calibrating the SEC system with poly(methyl methacrylate) of narrow polydispersity, molar masses were obtained that are in good agreement with data obtained by SEC-MALLS (multi-angle laser light scattering) and SEC measurements of methylated samples. The reproducibility and the robustness of the novel method were proven by running similar samples in three different laboratories and for an extended period of two weeks. © 2013 by Walter de Gruyter GmbH & Co. Adler Martina Deutsches Kunststoff-Institut (German Institute for Polymers), Schlossgartenstr. 6, 64289 Darmstadt, Germany; Fax +49-6151-292855 aut Pasch Harald Deutsches Kunststoff-Institut (German Institute for Polymers), Schlossgartenstr. 6, 64289 Darmstadt, Germany; Fax +49-6151-292855 aut Meier Christian Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut Senger Raimund Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut Koban Hans-Günter Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut Augenstein Michael Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut Reinhold Günter Polymer Standards Service GmbH, In der Dalheimer Wiese 5, 55120 Mainz, Germany aut e-Polymers De Gruyter 4/1(2004-12-01), 608-623 2197-4586 4:1<608 2004 4 epoly https://doi.org/10.1515/epoly.2004.4.1.608 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1515/epoly.2004.4.1.608 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Adler Martina Deutsches Kunststoff-Institut (German Institute for Polymers), Schlossgartenstr. 6, 64289 Darmstadt, Germany; Fax +49-6151-292855 aut NATIONALLICENCE 700 1- Pasch Harald Deutsches Kunststoff-Institut (German Institute for Polymers), Schlossgartenstr. 6, 64289 Darmstadt, Germany; Fax +49-6151-292855 aut NATIONALLICENCE 700 1- Meier Christian Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut NATIONALLICENCE 700 1- Senger Raimund Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut NATIONALLICENCE 700 1- Koban Hans-Günter Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut NATIONALLICENCE 700 1- Augenstein Michael Röhm GmbH & Co. KG, Kirschenallee, 64293 Darmstadt, Germany aut NATIONALLICENCE 700 1- Reinhold Günter Polymer Standards Service GmbH, In der Dalheimer Wiese 5, 55120 Mainz, Germany aut NATIONALLICENCE 773 0- e-Polymers De Gruyter 4/1(2004-12-01), 608-623 2197-4586 4:1<608 2004 4 epoly CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence SWISSBIB 378903160 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter