Facilities

Synthesis equipment

Heidolph rotovap: Removes solvent or other volatiles from a reaction mixture. A big advantage of this unit is that the control panel can be removed from the hood with the sash closed. All aspects of the rotovap can then be controlled from the safety of being behind the sash outside the hood.IMG_2740

 

Mbraun glovebox: The glovebox uses a nitrogen atmosphere currently. This unit has a freezer, and a cold well filled with lab armor beads for doing chemistry at low temperatures inside the box.

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Automatic polarimeter: This instrument determines the optical rotation of a solution containing a chiral compound or polymer. This is useful to estimate the enantiomeric excess of a small or large molecule.

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ReactIR 15 in-situ FT-IR spectrometer: This instrument can be used to monitor reactions in-situ by measuring the IR signal of your reaction mixture in real time. We use it to monitor monomer consumption for our polymerizations!

 

Heidolph stirring hotplates: Precision heating and stirring.

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Custom glassware for polymerization: These reactors have heavy walls to handle high vapor pressure monomers, and a single standard port size for all connections of 3/8″ OD. These reaction vessels are used for anionic polymerizations that require multiple ports and the ability to be hooked up to vacuum.

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J.C. Meyer solvent system: This system contains pure and dry THF, Toluene, Cyclohexane, DMF, Dichloromethane. We share with the Keitz lab who has a complementary set of solvents.

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Labconco Lyophilizer (freeze dryer): For those times when you have a solution in water, but what you really want is a nice powder.

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Polymer characterization–Molecular size distribution

GPC #1: Agilent 1260 Infinity I with Wyatt tRex, Dawn Helios, Viscostar detectors: Typically on THF or chloroform. 500-10 million g/mol column detection range!

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GPC #2: Agilent 1260 Infinity II + MDS: (right) Typically on chloroform or DMF with LS, DLS, and RI detectors. 200-60,000 g/mol column detection range!

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Polymer characterization–Physical/thermal/viscoelastic properties

Micrometrics Pycnometer: This instrument yields the density of solid samples. It is refreshingly easy to use.

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TA Instruments DSC2000: Thermal transitions with an autosampler! We use this for typical glass transition temperature measurements of our polymers as well as some interesting crystallization and melting experiments.
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Zeiss optical microscope with Linkam heating/cooling stage: The optical microscope fit with a temperature controlled stage provides visualization of microscopic phenomena including ice crystallization in the presence of polymers and phase separation of polymer blends.

 

TA Ares 2000ex rheometer: Perform typical rheological experiments with a range of geometry sizes. Also equipped with environmental heating chamber.

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Carver hot press: Used to press films with controlled high temperature control.

 

Electrochemical characterization

BioLogic potentiostat (single channel): This is for conducting basic electrochemistry measurements.

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