TY - JOUR A1 - Pasch, H. A1 - Krüger, H. A1 - Much, H. A1 - Just, Ulrich T1 - Simultaneous determination of functionality type and molar mass distribution of oligo (1,3,6-trioxocane)s by supercritical fluid chromatography JF - Polymer PY - 1992 SN - 0032-3861 SN - 1873-2291 VL - 33 SP - 3889 EP - 3892 PB - Springer CY - Berlin AN - OPUS4-11333 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Schulz, Günter A1 - Heß, H. A1 - Hübner, H. A1 - Sobisch, T. T1 - Umfassende analytische Charakterisierung handelsüblicher nichtionischer Tenside durch Kopplung von HPLC und MALDI-TOF-MS T2 - Dechema-Jahrestagung T2 - Dechema-Jahrestagung 1996 CY - Wiesbaden, Deutschland DA - 1996-05-21 PY - 1996 PB - DECHEMA CY - Frankfurt am Main AN - OPUS4-2220 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pasch, H. A1 - Krüger, G. A1 - Much, H. A1 - Just, Ulrich T1 - Analysis of benzyloxy-terminated poly(1,3,6-trioxocane)s by supercritical fluid chromatography JF - Journal of chromatography PY - 1992 SN - 0021-9673 SN - 0378-4355 SN - 0376-737x VL - 589 SP - 295 EP - 299 PB - Elsevier CY - Amsterdam AN - OPUS4-11319 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Pasch, H. A1 - Brinkmann, C. A1 - Much, H. A1 - Just, Ulrich T1 - Chromatographic investigations of macromolecules in the "critical range" of liquid chromatography JF - Journal of chromatography PY - 1992 SN - 0021-9673 SN - 0378-4355 SN - 0376-737x VL - 623 SP - 315 EP - 322 PB - Elsevier CY - Amsterdam AN - OPUS4-11284 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Falkenhagen, Jana A1 - Much, Helmut A1 - Stauf, W. A1 - Müller, A. H. E. T1 - Characterization of block copolymers by liquid adsorption chromatography at critical conditions. 1. Diblock copolymers JF - Macromolecules N2 - Liquid adsorption chromatography at critical conditions (LACCC) in normal and in reversed-phase modes provides independent information on the molar mass distributions of both blocks of poly(methyl methacrylate)-block-poly(tert-butyl methacrylate), even if no information about the precursor is available. In addition, the amount of unreacted precursor can be determined, even if its molar mass is comparable to that of the total block copolymer. The reversal of elution order by changing of stationary and mobile phases makes it possible to independently characterize each block in the SEC mode of the LACCC system. Thus, complete structural information is obtained even without using two-dimensional chromatographic techniques. PY - 2000 DO - https://doi.org/10.1021/ma991903j SN - 0024-9297 SN - 1520-5835 VL - 33 IS - 10 SP - 3687 EP - 3693 PB - American Chemical Society CY - Washington, DC AN - OPUS4-2172 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Falkenhagen, Jana A1 - Much, Helmut A1 - Stauf, W. A1 - Müller, A. H. E. T1 - Characterization of di- and triblock copolymers using coupled chromatogreaphic methods JF - Polymer preprints PY - 1999 SN - 0032-3934 VL - 40 IS - 2 SP - 984 EP - 985 PB - American Chemical Society CY - Newark, NJ AN - OPUS4-2183 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Schulz, Günter A1 - Frey, H. T1 - Characterization of unusual Silsesquioxane-Based Polymer Architectures Based on the Coupling of Liquid Chromatography and MALDI-TOF-MS T2 - 11th International Symposium on Organosilicon Chemistry T2 - 11th International Symposium on Organosilicon Chemistry CY - Montpellier, France DA - 1996-09-01 PY - 1996 CY - Montpellier AN - OPUS4-2222 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Czichocki, G. A1 - Fiedler, H. A1 - Haage, K. A1 - Much, Helmut A1 - Weidner, Steffen T1 - Characterization of alkyl polyglycosides by both reversed-phase and normal-phase modes of high-performance liquid chromatography JF - Journal of chromatography A N2 - Alkyl polyglycosides today represent the most important sugar surfactant. Nonionic sugar surfactants produced via different synthetic routes are mixtures of alkyl homologues, oligomers, anomers and isomers. Alkyl homologues and oligomers of alkyl mono- and diglucosides were separated by reversed-phase high-performance liquid chromatography (HPLC) with methanol–water as the mobile phase using a gradient elution. The gradient was optimized in respect to a simultaneous separation of alkyl glycosides according to their alkyl chain length and alkyl polyoxyethylene glucosides with regard to their length of the polyoxyethylene spacer. The separation of alkyl glycosides into ?- and ?-anomers was carried out by normal-phase HPLC with isooctane–ethyl acetate (60:40, v/v)–2-propanol in the gradient mode. Light scattering detection was used. Matrix-assisted laser desorption ionization time-of-flight mass spectra of alkyl glucosides and dodecyl glucosides with oxyethylene spacer groups are presented. PY - 2002 DO - https://doi.org/10.1016/S0021-9673(01)01459-5 SN - 0021-9673 VL - 943 IS - 2 SP - 241 EP - 250 PB - Elsevier CY - Amsterdam AN - OPUS4-11099 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Much, H. A1 - Just, Ulrich T1 - Characterization of Polymers using Supercritical Fluid Chromatography (SFC) T2 - International GPC Symposium '94 T2 - International GPC Symposium '94 CY - Lake Buena Vista, FL, USA DA - 1994-06-05 PY - 1994 AN - OPUS4-11104 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Much, H. A1 - Just, Ulrich T1 - Superkritische Fluide zur Charakterisierung von Polymeren T2 - Erster Berlin-Brandenburger Chromatographiestammtisch e.V. T2 - Erster Berlin-Brandenburger Chromatographiestammtisch e.V. CY - Berlin, Germany DA - 1995-04-06 PY - 1995 AN - OPUS4-11118 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Just, Ulrich A1 - Much, H. T1 - Characterization of polymers using supercritical fluid chromatography: Apllication of adsorption chromatography, size exclusion chromatographyand adsorption chromatography at critical conditions JF - International journal of polymer analysis and characterization PY - 1996 SN - 1023-666X SN - 1563-5341 VL - 2 SP - 173 EP - 184 PB - Gordon and Breach Publ. CY - Amsterdam AN - OPUS4-11348 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Just, Ulrich A1 - Much, H. T1 - Characterization of Polymers using Supercritical Fluid Chromatographie -Application of the three modes in liquid chromatography T2 - Proceedings of the International GPC Symposium 1995 T2 - International GPC Symposium CY - Florida, USA DA - 1995-06-05 PY - 1995 SP - 861 EP - 877 AN - OPUS4-11334 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Wachsen, O. A1 - Reichert, K.H. A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Schulz, Günter T1 - Thermal decomposition of biodegradable polyesters - III. Studies on the mechanisms of thermal degradation of oligo-L-lactide using SEC, LACCC and MALDI-TOF-MS JF - Polymer degradation and stability PY - 1997 SN - 0141-3910 SN - 1873-2321 VL - 55 SP - 225 EP - 231 PB - Applied Science Publ. CY - London AN - OPUS4-2154 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Wachsen, O. A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Schulz, Günter A1 - Reichert, K.H. T1 - Untersuchungen zur Charakterisierung des Abbaus von Polylactiden mittels 2D-HPLC und MALDI-TOF-MS T2 - Bericht vom Berliner Verband für Polymerforschung e.V. 1995 T2 - Sitznung des Berliner Verband für Polymerforschung e.V. CY - Berlin DA - 1995-05-18 PY - 1995 CY - Berlin AN - OPUS4-2202 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Reichert, K.H. A1 - Schulz, Günter A1 - Wachsen, O. T1 - Untersuchungen zur Charakterisierung des Polylactidabbaus mittels HPLC und MALDI-TOF-MS T2 - Bericht der Präsentationsveranstaltung des Instituts für Angewandte Chemie Berlin-Adlershof e.V. T2 - Präsentationsveranstaltung des Instituts für Angewandte Chemie Berlin-Adlershof e.V. CY - Berlin, Germany DA - 1995-09-26 PY - 1995 CY - Berlin AN - OPUS4-2206 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -