Sequence distribution determination by SWAMP‐MS a systematic way of analyzing multiple fragmented polymers with mass spectrometry

Author:

Mengerink Ynze12ORCID,Philipsen Harry13,Jordens Jan4ORCID,Mengerink Josh5ORCID,van der Hoeven Rob6,Peters Ron A. H.78ORCID

Affiliation:

1. ACC DSM Geleen The Netherlands

2. Biomedical DSM Geleen The Netherlands

3. Engineering Materials DSM Geleen The Netherlands

4. VITO Mol Belgium

5. Codenext21 Eindhoven The Netherlands

6. Food Specialties DSM Delft The Netherlands

7. Group Innovation Covestro Waalwijk The Netherlands

8. Van't Hoff Institute for Molecular Science (HIMS) University of Amsterdam Amsterdam The Netherlands

Abstract

AbstractA new method to determine the blockiness and especially the block length distribution (BLD) of copolymers is described. This Systematic Workflow to Analyze Multi‐fragmented Polymers with Mass Spectrometry (SWAMP‐MS) is developed to characterize the sequence distribution of synthetic polymers. Copolymerization of polyamide 4,6 and polyamide 4,10 is used as a model system. Supercharged polymer ions, generated by electrospray ionization, swamp the mass spectrum due to <1> different chemical related distributions (chain composition, end groups), <2> the number of repeating units, <3> the charge and adduct distribution, and <4> isotopes distribution. Without selecting specific substrate ions, MSMS will transform this total ion‐SWAMP into chemical rich information of the polymer backbone. The generated fragments contain up to 20 monomers. The reduction of blockiness is evaluated by the decreasing abundancy of specific ions originating from the starting polymers. Moreover, evaluation of all significant fragments and applying Monte Carlo simulations can rebuild the polymer backbone and generate sequence distributions of the copolymerized samples, which is currently still a holy grail in co‐chemical polymer analysis.

Funder

DSM

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry

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