Molecular Engineering of Fracture Energy Dissipating Sacrificial Bonds Into Cellulose Nanocrystal Nanocomposites

McKee, Jason R.; Huokuna, Johannes; Martikainen, Lahja; Karesoja, Mikko; Nykänen, Antti; Kontturi, Eero; Tenhu, Heikki; Ruokolainen, Janne; Ikkala, Olli

doi:10.1002/anie.201401072

Cited by 63 publications

(47 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One report that deviates from this NFC performance pattern describes the introduction of surface modifications to introduce sacrificial bonds in cellulose nanocrystals, where the sacrificial bonds were based on acrylate polymer brushes, incorporating supramolecular ureidine pyrimidone groups and resulted in noncatastrophic crack propagation and substantial yielding by necking in tensile deformation. 29 In all above cases, the nanocellulose-based films and composites were prepared from solvent-dispersed phase upon solvent removal, which leads to jamming into highly packed solid phase with reduced dynamics. This phase can be regarded as colloidal glass.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhanced Plastic Deformations of Nanofibrillated Cellulose Film by Adsorbed Moisture and Protein-Mediated Interactions

et al. 2014

Self Cite

View full text Add to dashboard Cite

Biological composites are typically based on an adhesive matrix that interlocks rigid reinforcing elements in fiber composite or brick-and-mortar assemblies. In nature, the adhesive matrix is often made up of proteins, which are also interesting model systems, as they are unique among polymers in that we know how to engineer their structures with atomic detail and to select protein elements for specific interactions with other components. Here we studied how fusion proteins that consist of cellulose binding proteins linked to proteins that show a natural tendency to form multimer complexes act as an adhesive matrix in combination with nanofibrillated cellulose. We found that the fusion proteins are retained with the cellulose and that the proteins mainly affect the plastic yield behavior of the cellulose material as a function of water content. Interestingly, the proteins increased the moisture absorption of the composite, but the well-known plastifying effect of water was clearly decreased. The work helps to understand the functional basis of nanocellulose composites as materials and aims toward building model systems for molecular biomimetic materials.

show abstract

Section: ■ Introductionmentioning

confidence: 99%

Enhanced Plastic Deformations of Nanofibrillated Cellulose Film by Adsorbed Moisture and Protein-Mediated Interactions

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

“…Engineering of sacrificial bonds into solid cellulose nanocrystal nanocomposites using supramolecular construction principles to achieve engineered fracture energy dissipation was recently demonstrated. [ 13 ] Moreover, dynamic supramolecular bonds have been particularly attractive for self-healing supramolecular rubbers. [ 14 ]…”

mentioning

confidence: 99%

Hybrid Supramolecular and Colloidal Hydrogels that Bridge Multiple Length Scales

et al. 2015

Self Cite

View full text Add to dashboard Cite

Hybrid nanocomposites were constructed based on colloidal nanofibrillar hydrogels with interpenetrating supramolecular hydrogels, displaying enhanced rheological yield strain and a synergistic improvement in storage modulus. The supramolecular hydrogel consists of naphthyl-functionalized hydroxyethyl cellulose and a cationic polystyrene derivative decorated with methylviologen moieties, physically cross-linked with cucurbit[8]uril macrocyclic hosts. Fast exchange kinetics within the supramolecular system are enabled by reversible cross-linking through the binding of the naphthyl and viologen guests. The colloidal hydrogel consists of nanofibrillated cellulose that combines a mechanically strong nanofiber skeleton with a lateral fibrillar diameter of a few nanometers. The two networks interact through hydroxyethyl cellulose adsorption to the nanofibrillated cellulose surfaces. This work shows methods to bridge the length scales of molecular and colloidal hybrid hydrogels, resulting in synergy between reinforcement and dynamics.

show abstract

“…In this regard, lots of one-component nanocomposites have been created involving reinforcing colloidal nanorod cores with polymeric grafts bearing supramolecular motifs. In 2014, Ruokolainen and Ikkala reported a one-component biomimetic nanocomposite which contains reinforcing colloidal cellulose nanocrystal (CNC) cores and acrylate polymer shells [33]. The polymer shells involve a set of hydrogen-bonding UPy moieties to form sacrificial bonds within the grafted brush architecture, and the interdigitation of the grafts and the UPy quadruple hydrogen bonds bind the nanocomposite network together.…”

Section: "Side-chain" Supramolecular Polymer Networkmentioning

confidence: 99%

Hydrogen-Bonded Supramolecular Polymers

Chen

Xiao

2015

Lecture Notes in Chemistry

View full text Add to dashboard Cite

Supramolecular polymers constructed by different kinds of low-molecularweight monomers or high-molecular-weight conventional polymeric species based on hydrogen bonding interactions have attracted more and more attention due to their fascinating and unconventional chemical and physical properties. A series of multiple hydrogen-bonding building blocks are described herein, which make the expansion of the research field of hydrogen-bonded supramolecular polymers and allow the fabrication of more new and functional supramolecular polymers. This chapter focuses on linear hydrogen-bonded supramolecular polymers and networks which are described in three parts. The first part is the main-chain supramolecular polymers, in which the polymeric backbone is constructed by noncovalently bonded lowmolecular-weight monomers. The second part is the conventional polymer-based supramolecular polymers, in which the main polymeric backbone part is constructed by covalently bonded conventional polymer, but functionalized by hydrogen-bonding motifs. The last part is supramolecular polymers constructed by orthogonal hydrogen bonding-driven self-assembly and other noncovalent interactions. IntroductionIn view of the reversible and dynamic nature of noncovalent interactions, supramolecular polymers have attracted much attention in recent years as they not only possess conventional polymeric properties, but also show new distinct material properties, which ensure their potential application in a broad range of fields [1][2][3][4][5]. The secondary interactions involved in the construction of the supramolecular structures include hydrogen bonding, metal-ligand coordination, π-π stacking, ionic interaction, and host-guest interaction etc. Each of these noncovalent interactions

show abstract

Molecular Engineering of Fracture Energy Dissipating Sacrificial Bonds Into Cellulose Nanocrystal Nanocomposites

Cited by 63 publications

References 44 publications

Enhanced Plastic Deformations of Nanofibrillated Cellulose Film by Adsorbed Moisture and Protein-Mediated Interactions

Enhanced Plastic Deformations of Nanofibrillated Cellulose Film by Adsorbed Moisture and Protein-Mediated Interactions

Hybrid Supramolecular and Colloidal Hydrogels that Bridge Multiple Length Scales

Hydrogen-Bonded Supramolecular Polymers

Contact Info

Product

Resources

About