Polymer & Polyol Analysis

Application Bulletin 414 Analysis of polymers using near-infrared spectroscopy Branch Plastics and polymers Keywords Near-infrared spectroscopy, polymer, monomer, polymerization, polypropylene, polyethylene, PET, polyuethane, polystyrene, resin, polyols, polyesters, polyolefin, hydroxyl number, hydroxyl value, acid value, density, melt flow index, melt flow…

AN-NIR-035 Quality Control of Polyols Chemical-free determination of Hydroxyl Number according to ASTM D6342-12 Summary Toxic and corrosive chemicals such as p-toluenesulfonyl isocyanate (TSI) and tetrabutylammonium hydroxide are used for the Hydroxyl Number analysis of polyols by titration according to…

Near-Infrared Spectroscopy Application Note NIR–6 Near-infrared analysis of polyols This Application Note describes a fast, nondestructive, and reliable NIRS method for the determination of the hydroxyl number in polyols. Results are available in real-time, for which reason NIRS is highly…

NIR Application Note NIR–065 Simultaneous determination of multiple quality parameters of polyols using Vis-NIR spectroscopy This Application Note demonstrates different application possibilities of Metrohm Vis-NIR analyzers for the determination of multiple quality parameters of polyols. This unique analytical technique enables…