Helmholtz-Zentrum Geesthacht, Tuesday, 22-May-2012 20:18:50 CEST
http://www.hzg.de/institute/polymer_research/structure/teltow/pbc/techniques/index.html.en

Methods

Common Methods

  • polymer synthesis
  • polymer characterisation

Special Techniques

Technique of reaction

Methods Equipment / Model
UV Excimer Curing Module Heraeus Noblelight, BlueLight UV-emitter length of emitter: 60 cm, wavelength: 308 nm
Hg - Steam pressure lamp with HBO 50W/3 lamp, liquid-filter system and optical filter L.O.T. Oriel GmbH
Thin layer evaporator for concentration of polymer solutions / purification from monomers, solvent reclaiming, and purification of temperature sensitive substances in vacuum ILUDEST Destillationsanlagen GmbH
Spray dryer Mini Spray Dryer B-290, Büchi Labortechnik GmbH
Stirrer tank reactor Büchi Laborrührautoklav bep 280 Büchi AG Uster
Freeze drying system for organic solvents and for aqueous systems ZIRBUS technology Christ
Lyophilization system Christ Alpha 2-4 LDplus
Modular System for synthesis, precipitation and work up of different polymers Equipment combinations for polymer preparation up to 1 kg material
Explosion-proof Synthesis Chamber Enclosure approx. 12 m2 (useable height approx. 4,50 m) for work with higher amounts of volatile solvents

Characterization

Methods Equipment / Model
FTIR-Spektroskopy (Recording of IR-spectra from solid bodies and liquids) Magna 550 , Nicolet (Transmission, attenuated total reflexion (ATR), reflection absorption spectra (RAS), time resolved spectra)
Water determination of liquids and determination of bromine number of unsaturated bonds Karl-Fischer-Coulometer AQUA 40.00, analytikjenaAG (ECH)
Determination of functional groups in polymers (-COOH, -OH, -SO3H, -NH2, Cl-, anhydride and epoxy) using potentiometric titration Titrino 716 DMS, Metrohm
Gel permeation chromatography (GPC, SEC) determination of molecular weight (MW) and MW distribution (Mw, Mn, Mz) as well as radii of gyration, GPC/FTIR-coupling for high boiling eluents e.g. DMF Four facilities with different components (detectors, eluents, and columns) for chloroform, THF and DMF, Jasco, PL, PSS, Wyatt, Lab Connections, Viscotek and Bures
Vapour pressure osmometry, determination of molecular weight (Mn) in different solvents, Mn up to10 kD Knauer vapour pressure osmometer
Membrane osmometrie, determination of molecular weight (Mn) in different solvents, Mn >10 kD Gonotec membrane osmometer Osmomat 070
Viscosimetry of polymer solutions, determination of intrinsic viscosity and MH-parameters Process viscosimeter, Lauda and Vistec
Rheology Rotation viskosimeter with cylinder and disc/disc geometrie for gels and polymer solutions Rheoviskosimeter (Rheotec), Haake MARS (Thermo Fischer) with Peltier- element und 20 / 60 mm disc/disc geometrie, RheoWin Software
Thermally controlled polarisation microscopy Axio Imager A1M, Zeiss, transmitted and incident light, 4 different magnifications 5x,10x,20x,50x, Bertrand lenses system, CCD-Camera, hot stage LTS350
Materials testing: tensile and compression (F = 20 N - 5 kN, with thermostat - 60°C to 150°C F = 20 N to 100 kN) Z 005 (Zwick), Z 2.5, (Zwick), Z 1,0 (Zwick)

Events

AFPM 2012

Address

Helmholtz-Zentrum Geesthacht
Zentrum für Biomaterialentwicklung
Kantstraße 55
14513 Teltow-Seehof

Tel.: +49 (0)3328 352-0
Fax: +49 (0)3328 352-452