Recyclable and Degradable Ionic-Substituted Long-Chain Polyesters

Saumer, Anne; Mecking, Stefan

Recyclable and Degradable Ionic-Substituted Long-Chain Polyesters

Dateien

Saumer_2-167dh1zmgbfoo9.pdfGröße: 6.5 MBDownloads: 2

Datum

2023

EU-Projektnummer

832480

Projekt

DEEPCAT: Degradable Polyolefin Materials Enabled by Catalytic Methods

Sammlungen

Chemie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

ACS Sustainable Chemistry & Engineering. ACS Publications. 2023, 11(33), pp. 12414-12422. eISSN 2168-0485. Available under: doi: 10.1021/acssuschemeng.3c03141

Zusammenfassung

Ionic groups can endow apolar polymers like polyethylene with desirable traits like adhesion with polar compounds. While ethylene copolymers provide a wide range of tunability via the carboxylate content and neutralization with different cations, they lack degradability or suitability for chemical recycling due to their all-carbon backbones. Here, we report ion-containing long-chain polyesters with low amounts of ionic groups (M_n = 50–60 kg/mol, <0.5 mol % of ionic monomers) which can be synthesized from plant oils and exhibit HDPE-like character in their structural and mechanical properties. In the sulfonic acid as well as neutralized sulfonate-containing polyesters, the nature of the cation counterions (Mg²⁺, Ca²⁺, and Zn²⁺) significantly impacts the mechanical properties and melt rheology. Acid-containing polyesters exhibit a relatively high capability to absorb water and are susceptible to abiotic degradation. Enhanced surface wettability is reflected by facilitation of printing on films of these polymers. Depolymerization by methanolysis to afford the neat long-chain monomers demonstrates the suitability for chemical recycling. The surface properties of the neutralized sulfonate-containing polyesters are enhanced, showing a higher adsorption capability. Our findings allow for tuning the properties of recyclable polyethylene-like polymers and widen the scope of these promising materials.

Fachgebiet (DDC)

540 Chemie

Schlagwörter

biobased, degradable, ionic polymer, polyethylene-like

Zitieren

ISO 690

SAUMER, Anne, Stefan MECKING, 2023. Recyclable and Degradable Ionic-Substituted Long-Chain Polyesters. In: ACS Sustainable Chemistry & Engineering. ACS Publications. 2023, 11(33), pp. 12414-12422. eISSN 2168-0485. Available under: doi: 10.1021/acssuschemeng.3c03141

BibTex

@article{Saumer2023-08-09Recyc-67699,
  year={2023},
  doi={10.1021/acssuschemeng.3c03141},
  title={Recyclable and Degradable Ionic-Substituted Long-Chain Polyesters},
  number={33},
  volume={11},
  journal={ACS Sustainable Chemistry & Engineering},
  pages={12414--12422},
  author={Saumer, Anne and Mecking, Stefan}
}

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