Direct Characterization of Polymeric Hindered Amine Light Stabilizer in Polypropylene by Reactive Thermal Desorption-Gas Chromatography and MALDI-MS Using Solid Sampling Technique

摘要

Hindered amine light stabilizers (HALSs) are often added to polymeric materials for the prevention of degradation in the outdoor uses. In practical use, polymeric HALSs of which molecular weight ranges from 1,500 to 4,000 are often employed to suppress their bleeding-out from the substrate materials.