This document specifies a general method for determining the average molecular mass and molecular mass distribution of polymers (see Reference ) from 2 000 g ⋅ mol−1 to 20 000 g ⋅ mol−1 by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS).
The average molecular masses and molecular mass distributions are calculated from a calibration curve constructed using synthetic-polymer and/or biopolymer standards. This method is therefore classified as a relative method.
The method is not applicable to polyolefins or to polymers with a polydispersity >1,2.
Status: PublishedPublication date: 2018-06
Edition: 2Number of pages: 13
Technical Committee: ISO/TC 61/SC 5 Physical-chemical properties
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