Post-polymerization Reactions

  • Desired partial conversion of Polyvinyl acetate (PVAc) to Poly(vinyl acetate-co-vinyl alcohol)

End-group Analysis

  • Carboxylic (-COOH) end-group of polyesters (PET, PBT)
  • Hydroxyl (-OH) end-group of polyesters
  • Acid Value of MA-g-PE/PP/EPDM (Maleic Anhydride grafted PE or PP or Rubbers)Molecular Weight Determination by Dilute Solution Viscosity
  • Ubbelohde type viscometers

Brookfield Viscosity

  • Brookfield Viscometer EX-200 (for viscous solutions)
  • Brookfield Viscometer (Model LVT) Synchro-electric (for polymer melts or highly viscous semi-solids)

Gel Time Determination

  • UPE (Unsaturated polyesters, UV curable polymeric binders)

FTIR Spectroscopy

  • Perkin-Elmer FTIR spectrophotometer (Model Spectrum One) along with Spectral Libraries for identification of unknowns.
  • HATR (Horizontal Attenuated Total Reflection) FTIR accessory for opaque solid/liquid samples (no sample preparation).

Soxhlet Extraction

  • Set-up for extraction of additives and other soluble matter

Determination of %Solids

  • Solid / Non-volatiles content of UPE (unsaturated polyesters) and other polymeric solutions
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