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Max-Planck-Institut für Kolloid- und Grenzflächenforschung
Abteilung Kolloidchemie
Wissenschaftspark Potsdam-Golm
D-14424 Potsdam
Fon: +49-(0)331-567-9528 / 9532
Fax: +49-(0)331-567-9502
Raum: K-1.100/K-1.113
E-mail: marlies.graewert
Analytical GPC/SEC service
Equipment: Thermo Separation Products (TSP)
isocratic pump P-100/1000, auto sampler AS-100/1000, column oven,
detecting devices: UV-1000/2000 detector, Shodex RI-71 detector (standard),
Jasco OR-1590 chiral detector, Wyatt Dawn Eos MALLS detector, Viscotek H502B viscometer detector
GPC 1
eluent: tetrahydrofuran (THF), flow rate: 1.0 ml/min
temperature: 25 °C (…40 °C)
columns: PSS-SDV 5µ VS+10E3+10E5+10E6
calibration: PS, PB, PIB, PtBA, PMMA, PBMA, PLA, PEO
molecular weight range: 600 – 9 000 000 g/mol (PS)
GPC 2
eluent: N-methylpyrrolidone (NMP) + 0.5 g/l LiBr, flow rate: 0.8 ml/min
temperature: (25 °C …) 70 °C
columns: PSS-GRAM 7µ VS+100+1000
calibration: PS, PMMA, PEO
molecular weight range: 600 – 2 000 000 g/mol (PS)
GPC 3
eluent: dimethylsulfoxide (DMSO) + 0.5 g/l LiBr, flow rate: 1.0 ml/min
temperature: (25 °C …) 70 °C
columns: PSS-GRAL 10µ VS+linear
calibration: PMMA, PEO, pullulan, dextran
molecular weight range: 2000 – 900 000 g/mol (PMMA)
GPC 4
eluent: 0.1N aqueous NaNO3, flow rate: 1.0 ml/min
temperature: 25 °C
columns: PSS-SUPREMA 10µ VS+30+3000, PSS-MCX 10µ VS+10E5
calibration: PAANa, PEO, pullulan, dextran (SUPREMA), PSSNa (MCX)
molecular weight range: 1200 – 90 000 g/mol (PAANa), 4500 – 962 000 g/mol (PSSNa)
Other service measurements
Viscometry; automated micro viscometer AMVn (Anton Paar)
Refractive index increment; NFT ScanRef interferrometric refractometer
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