Cambridge Polymer Group now offers the following testing capabilities:
Variable Pressure/Environmental Scanning Electron Microscopy
Conventional scanning electron microscopy requires high vacuum and samples with a conductive surface. Polymeric materials usually have to be coated with a metal layer (gold, palladium, iridium, carbon), and wet samples must be thoroughly dried. With variable pressure SEM, wet and uncoated samples can be imaged. Cambridge Polymer Group has used this technique to examine the microstructure of hydrogels, as well as salts.
Confocal Raman Spectroscopy
A complementary technique to infrared spectroscopy, Raman spectroscopy can be conducted on wet samples without the interference of water. Raman maps can be constructed, providing compositional information as a function of position on the sample.