A healing ionomer crosslinked by a bis-bidentate halogen bond linker: a route to hard and healable coatings

Dahlke, Jan; Tepper, Ronny; Geitner, Robert; Zechel, Stefan; Vitz, Jürgen; Kampes, Robin; Popp, Jürgen; Hager, Martin D.; Schubert, Ulrich S.

doi:10.1039/c8py00149a

Cited by 25 publications

(25 citation statements)

References 37 publications

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“…A versatile principle for obtaining supramolecular associative polymer networks is through transient linkage of associative side motifs, often named “stickers,” that are distributed randomly along covalently jointed polymer chains . We denote this type of supramolecular associative polymer networks as side‐supra networks .…”

Section: Introductionmentioning

confidence: 99%

Dynamics of supramolecular associative polymer networks at the interplay of chain entanglement, transient chain association, and chain‐sticker clustering

Jangizehi

Ahmadi

Seiffert

2019

J Polym Sci B Polym Phys

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The dynamic mechanical properties of supramolecular associative polymer networks depend on the average number of entanglements along the network-forming chains, N e , and on their content of associative groups, f. In addition, there may be further influence by aggregation of the associative groups into clusters, which, in turn, is influenced by the chemical structure of these groups, and again by N e and f of the polymer. Therefore, the effects of these parameters are interdependent. To conceptually understand this interdependency, we study model networks in which (a) N e , (b) f, and (c) the chemical structure of the associative groups are varied systematically. Each network is probed by rheology. The clustering of the associative groups is assessed by analyzing the rheological data at the end range of frequency covered and by comparison of the number of supramolecular network junctions with the maximum possible number of binary transient bonds. We find that if the total number of the network junctions, which can be formed either by interchain entanglement or by interchain transient associations, is greater than a threshold of 13, then the likelihood of cluster formation is high and the dynamics of supramolecular associative polymer networks is mainly controlled by this phenomenon.

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Section: Introductionmentioning

confidence: 99%

Dynamics of supramolecular associative polymer networks at the interplay of chain entanglement, transient chain association, and chain‐sticker clustering

Jangizehi

Ahmadi

Seiffert

2019

J Polym Sci B Polym Phys

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“…Ionic interactions have been utilized in intrinsic self‐healing polymers (the so‐called ionomers). [ 29–31 ] These polymers contain low amounts of ionic groups within a polymer matrix with low dielectric constant. Attractive interactions between the charged functional groups favor the formation of dynamic and thermo‐reversible ionic aggregates, also known as multiplets or clusters.…”

Section: Methodsmentioning

confidence: 99%

Novel Biobased Self‐Healing Ionomers Derived from Itaconic Acid Derivates

Meurer

Hniopek

Dahlke

et al. 2020

Macromol. Rapid Commun.

Self Cite

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This article presents novel biobased ionomers featuring self‐healing abilities. These smart materials are synthesized from itaconic acid derivates. Large quantities of itaconic acid can be produced from diverse biomass like corn, rice, and others. This study presents a comprehensive investigation of their thermal and mechanical properties via differential scanning calorimetry (DSC), thermo gravimetric analysis (TGA), and FT‐Raman and FT‐IR measurements as well as dynamic mechanic analysis. Within all these measurements, different kinds of structure‐property relationships could be derived from these measurements. For example, the proportion of ionic groups enormously influences the self‐healing efficiency. The investigation of the self‐healing abilities reveals healing efficiencies up to 99% in 2 h at 90 °C for the itaconic acid based ionomer with the lowest ionic content.

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“…Repeated self‐healing abilities of the co‐assembled films were demonstrated through scratch‐healing tests at elevated temperatures (Figure 7B). In 2018, the same group reported another example of X‐bonded self‐healing polymeric system from an ionomer prepared by copolymerizing BMA with a methacrylate monomer, featuring phosphate groups as XB‐acceptors [51] . Cross‐linked network formation by halogen bonding between PBMA‐ co ‐PPAMA acceptor and iodotriazolium functionalized bis‐bidentate XB‐donor (ITRZ) 4 (Figure 7A) conferred enhanced mechanical properties and self‐healing ability in the co‐assembled polymer films.…”

Section: Halogen Bonded Covalent Polymeric Assemblies and Materialsmentioning

confidence: 99%

Recent Developments in Polymeric Assemblies and Functional Materials by Halogen Bonding

Biswas

Das

2021

ChemNanoMat

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Polymers have long been known to us for their versatile utility in our daily lives. With many years of successful advancement in controlled polymer synthesis and supramolecular chemistry, currently an amalgamation of these two fields is becoming increasingly important for generating modern‐day emerging polymeric materials. Hydrogen bonding and other noncovalent interactions like π‐stacking, host‐guest interaction, electrostatic interaction, metal‐ligand coordination have been explored much to this context, unlike the recently emerged halogen bonding, which indeed shows advantageous features like superior hydrophobicity, directionality and polar solvent resistance compared to ubiquitous hydrogen bonding. Hence, rendering these properties of halogen bonding into polymeric domain for generating functional materials for application in advance nanotechnologies is highly desirable. In the recent years, substantial progress has been made in fulfilling this challenging goal. This is evident from the escalating number of scientific publications in this research area every year. In this minireview, we have summarized the most recent developments in the field of halogen bonded polymeric assemblies and supramolecular polymers and discussed them in the context of their emerging materials properties and functions. Emphasis is given on highlighting various design criteria adopted in crystal engineering, covalent and supramolecular polymers in the past five years for constructing diverse organic functional materials, viz. liquid crystals, photoresponsive and photochromic materials, biomaterials and gels, self‐healing materials and many others by virtue of this highly directional supramolecular tool. In conclusion, a brief perspective on the advantages, challenges and future prospects in this rapidly growing field of research is discussed.

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A healing ionomer crosslinked by a bis-bidentate halogen bond linker: a route to hard and healable coatings

Abstract: A bis-bidentate halogen bond linker was introduced into a fully organic, phosphate based ionomer, yielding a crosslinked network with healing abilities and improved mechanical properties.

Cited by 25 publications

References 37 publications

Dynamics of supramolecular associative polymer networks at the interplay of chain entanglement, transient chain association, and chain‐sticker clustering

Dynamics of supramolecular associative polymer networks at the interplay of chain entanglement, transient chain association, and chain‐sticker clustering

Novel Biobased Self‐Healing Ionomers Derived from Itaconic Acid Derivates

Recent Developments in Polymeric Assemblies and Functional Materials by Halogen Bonding

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