Structural Versatility in Slide‐Ring Gels: Influence of Co‐Threaded Cyclodextrin Spacers

Murakami, Takuya; Schmidt, Bernhard V. K. J.; Brown, Hugh R.; Hawker, Craig J.

doi:10.1002/pola.28490

“…[77] In addition, cross-links can be formed in at opological fashion, which implies that individual polymer chains are connected to each other through sliding CD units that are threaded on the polymer chains. [42,78] Self-healing and free-standing host-/guest-based hydrogels were reported by Harada and co-workers. [79] Tw osets of gels with different host/guest combinations were formed, that is, a-CD/n-butyl and b-CD/adamantyl.…”

Section: Hydrogelsmentioning

confidence: 93%

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

Schmidt

¹

,

Barner‐Kowollik

²

2017

Self Cite

View full text Add to dashboard Cite

Dynamic and adaptive materials are powerful constructs in macromolecular and polymer chemistry with a wide array of applications in drug delivery, bioactive systems, and self‐healing materials. Very often, dynamic materials are based on carefully tailored cyclodextrin host–guest interactions. The precise incorporation of these host and guest moieties into macromolecular building blocks allows the formation of complex macromolecular structures with predefined functions. Thus, dynamic materials with extraordinary adaptive property profiles—responsive to thermal, chemical, and photonic fields—become accessible. This Review explores the hierarchical formation of dynamic materials and complex macromolecular structures from the molecular via the macromolecular to the colloidal and macroscopic level, with a specific emphasis on the functionality and responsiveness of the assemblies, specifically in biological contexts.

show abstract

“…Rotaxane‐crosslinked polymers (RCPs) have attracted great attention both from a fundamental and a practical perspective because of the extraordinary functionality based on the mechanically linked components with high mobility . Ito et al.…”

Section: Figurementioning

confidence: 99%

A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers

Sawada

¹

,

Aoki

²

,

Otsuka

³

et al. 2019

View full text Add to dashboard Cite

Three component mobility controlling vinylic rotaxane crosslinkers with two radically polymerizable vinyl groups (RC_Rs) were synthesized to prove that the mobility of the components of the RC_Rsp laysacrucial role in determining the properties of rotaxane-crosslinked polymers (RCPs). RC_Rs( R= H, Me,o rE t) were obtained from living ringopening polymerization. RCP_Et was prepared using RC_Et, which exhibits the lowest component mobility.T he low component mobility is reflected in inferior mechanical strength and stretching ability in tensile stress tests compared to components with good (R = Me) and high (R = H) mobility. However, RCP_Et exhibited significantly higher stress and strain values than the corresponding covalentlyc rosslinked polymers (CCP_Rs). These results indicate that as uitable component mobility substantially enhances the mechanical strength of RCPs.T his behavior could serve as ag uiding principle for the molecular design of advanced RCs.

show abstract

“…Rotaxane-crosslinkedpolymers(RCPs)have attracted great attention both from afundamental and apractical perspective because of the extraordinary functionality based on the mechanically linked components with high mobility. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] Ito et al have reported that cyclodextrin-based polyrotaxane hydrogels with rotaxane crosslinks show excellent swelling ability and extensibility. [15] Related studies on such crosslinked cyclodextrin-based polyrotaxanes also revealed intriguing properties that cannot be attained by crosslinked polymers using covalent crosslinkers.…”

mentioning

confidence: 99%

A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers

Sawada

¹

,

Aoki

²

,

Otsuka

³

et al. 2019

View full text Add to dashboard Cite

Three component mobility controlling vinylic rotaxane crosslinkers with two radically polymerizable vinyl groups (RC_Rs) were synthesized to prove that the mobility of the components of the RC_Rsp laysacrucial role in determining the properties of rotaxane-crosslinked polymers (RCPs). RC_Rs( R= H, Me,o rE t) were obtained from living ringopening polymerization. RCP_Et was prepared using RC_Et, which exhibits the lowest component mobility.T he low component mobility is reflected in inferior mechanical strength and stretching ability in tensile stress tests compared to components with good (R = Me) and high (R = H) mobility. However, RCP_Et exhibited significantly higher stress and strain values than the corresponding covalentlyc rosslinked polymers (CCP_Rs). These results indicate that as uitable component mobility substantially enhances the mechanical strength of RCPs.T his behavior could serve as ag uiding principle for the molecular design of advanced RCs.

show abstract

Structural Versatility in Slide‐Ring Gels: Influence of Co‐Threaded Cyclodextrin Spacers

Cited by 27 publications

References 54 publications

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers

A Guiding Principle for Strengthening Crosslinked Polymers: Synthesis and Application of Mobility‐Controlling Rotaxane Crosslinkers

Contact Info

Product

Resources

About