ISO 19929:2017

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Plastics — Determination of average molecular mass and mixture ratio of poly(ethylene glycol) and its derivatives by MALDI-TOF-MS

Published By	Publication Date	Number of Pages
ISO	2017-03	20

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Categories: 83.080.01 - Plastics in general, ISO

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Description

ISO 19929:2017 specifies a general method for determining the average molecular mass and mixture ratio of poly(ethylene glycol) (PEG) and its derivatives with different end groups by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). It is applicable to PEG and its derivatives with molecular masses from 500 g mol^-1 to 20 000 g mol^-1. The composition is calculated by means of a calibration curve constructed using standard polymer mixtures, where the peak area ratio is plotted versus the mass ratio. This document can be applied to other polymers with monomeric unit similar to PEG.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	2017-03
Pages Count	20
Language	English
Edition	1
File Size	440.3 KB
ICS Codes	83.080.01 - Plastics in general

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ISO 19929:2017

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