A New Approach Toward Metal‐Free Self‐Healing Ionomers Based on Phosphate and Methacrylate Containing Copolymers. Issue 23 (4th October 2017)

• Record Type: Journal Article
• Authors: Dahlke, Jan; Bose, Ranjita K.; Zechel, Stefan; Garcia, Santiago J.; van der Zwaag, Sybrand; Hager, Martin D.; Schubert, Ulrich S.
• Is Part Of: Macromolecular chemistry and physics. Volume 218:Issue 23(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-10-04
• Subjects: ionomers -- self‐healing materials -- supramolecular polymers; Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201700340
• Languages: English
• ISSNs: 1022-1352

Abstract

Abstract: In order to accelerate the progress of the development of new self‐healing ionomers, a new pathway toward fully organic ionomers containing methacrylic acid and phosphate‐based functional groups, respectively, as well as butyl methacrylate as comonomer is presented in the current study. The well‐defined copolymer structures are synthesized using the reversible addition‐fragmentation chain transfer polymerization and further characterized by NMR, size exclusion chromatography as well as titration. Two different metal‐free ionomers as well as one reference K + based ionomer are created and tested. The results of the detailed investigation by NMR, thermal analysis, and rheology are correlated with the scratch‐healing performance in order to identify trends and dependencies leading to preconditions for further improvements. Abstract : New fully organic self‐healing ionomers are synthesized by reversible addition‐fragmentation chain transfer poly­merization. Mechanical and chemical properties are studied in detail. The ionomers feature self‐healing behavior of scratches on film at 80–100 °C. Furthermore, a correlation between the self‐healing abilities and the rheology results is shown.