Recyclable, robust and shape memory vitrified polyisoprene composite prepared through a green methodology

Niu, Zhenxing; Wu, Ruiyao; Yang, Yinxin; Huang, Lingyun; Fan, Weiyu; Dai, Quanquan; Cui, Long; He, Jianyun; Bai, Chenxi

doi:10.1016/j.polymer.2021.123864

Cited by 10 publications

(5 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This tendency, that is, the increase in E a with an increase in the filler fraction, is often reported in other composite vitrimers. [30,36,80] The obtained knowledge in the present study implies that the mobility of bound rubber phase may be attributed to the change of E a in composite vitrimers.…”

Section: Vitrimer Propertiessupporting

confidence: 66%

“…[28][29][30][31][32][33][34] The addition of fillers does not deteriorate the bond exchange nature, although bond exchange rate is slowed by the addition of fillers in general. [35][36][37][38][39] Such composite materials with enhanced mechanical strength and sustainable functions could be an alternative of conventional structural materials or metal products, and also be a great option for resinification of vehicles in the future.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preparation of Silica Composite Vitrimers via One‐Shot Transformation from Simple Polyesters

Kimura

Hayashi

2023

Macro Chemistry & Physics

View full text Add to dashboard Cite

To solve the conventional problems of chemically cross‐linked polymers, the vitrimer concept has attracted great attention because the associative bond‐exchange nature in vitrimers provides sustainable functions. So far, various vitrimer designs have been reported using different polymer species with compatible bond exchange mechanisms. However, the biggest barrier for the practical application may be the elaborated functional group modification of the starting components and the limited availability of suitable monomers. As a much simpler preparation, recently, a one‐shot preparation of vitrimers from commodity polyesters with no special reactive functional groups by blending and heating with tetra‐functional epoxy molecules and base catalysts has been proposed. In this study, further one‐shot preparation of composite vitrimers with silica nanoparticles (SNPs) is developed. The effects of SNPs on the cross‐linking process and thermo/mechanical properties are first assessed, which reveals the formation of a bound rubber phase on the surfaces of the SNPs. The bound rubber phase also affects the bond exchange features of vitrimers, especially the distribution of relaxation time. Overall, the present facile preparation of composite vitrimers with enhanced mechanical properties could be a hint for practical application, whereas the knowledge on the unique relaxation behaviors of composite vitrimers should be beneficial in the fundamental sense.

show abstract

Section: Vitrimer Propertiessupporting

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Preparation of Silica Composite Vitrimers via One‐Shot Transformation from Simple Polyesters

Kimura

Hayashi

2023

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

“…Incorporating the crosslinking networks into SMPs could improve the mechanical performances, which, nevertheless, is adverse to the deformation ability. Dynamic bonds, as a reversible chemical network, could form by the crosslinking and decrosslinking reactions upon the corresponding stimuli. − The integration of dynamic bonds into SMPs might not only improve the mechanical properties but also realize the synergistic effect between the transformations of flexible regions in SMPs and the crosslinking-decrosslinking reaction of dynamic bonds, improving the shape deformation ability. , Besides, the incorporation of dynamic bonds could endow SMPs with the exceptional performances, such as self-healing, − reshaping, , and reversible deformation ability. − Dynamic bonds include dynamic covalent bonds (disulfide bonds, boronate ester bonds, Diels–Alder reaction, etc.) and noncovalent bonds (hydrogen bonds, coordination bonds, host–guest interactions, etc.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Shape Memory Metal-Coordinated Poly(aryl ether ketone)s with Tunable Gradient-Deformation Behaviors as well as Self-Healing and Reprocessing Abilities

Yang

Leng

2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Reversible dynamic bonds are able to crack and recombine upon external stimuli, which endow polymers with exceptional self-healing, reprocessing, and reversible deformation ability. In this paper, we integrated the metal coordination bonds into shape memory poly(aryl ether ketone) (PAEK) to fabricate smart materials with multifunctionalities. Through tuning the metal ion content and species, the enhancement of shape memory behaviors was achieved, including the high recovery ratio (over 98%) and fixity ratio (over 98%), which was closely related to the synergic effect of the intrinsic motion ability of PAEK matrix and the cracking-recombination of coordination bonds. Besides, through the combination of the components with different Cu 2+ contents, in addition to the components with Fe 2+ coordination bonds, we fabricated the gradient shape memory structures with controllable shape memory and recovery behaviors. The manipulation of gradient coordination bonds resulted in different shape recovery speeds and directions. Furthermore, due to the dynamic cracking-recombination of coordination bonds, the metal-coordinated PAEK material exhibited the great selfhealing and reprocessing performances, which were significant for largely extending its application range.

show abstract

“…The CND vitrimer composite could be reshaped and reprocessed, showing also good shape memory performance. 72 A vitrimer composite using a conventional DGEBA epoxy resin with a biomass-derived activated carbon (AC) filler to achieve enhanced thermal and mechanical properties was also reported. The fact that AC was prepared from sugarcane refuses makes it therefore sustainable.…”

Section: Carbon Black Nanodots and Activated Carbonsmentioning

confidence: 99%

“…The CND vitrimer composite could be reshaped and reprocessed, showing also good shape memory performance. 72…”

Section: Reinforcements In Vitrimer Matrix Compositesmentioning

confidence: 99%

Vitrimer composites: current status and future challenges

et al. 2022

View full text Add to dashboard Cite

show abstract

Recyclable, robust and shape memory vitrified polyisoprene composite prepared through a green methodology

Cited by 10 publications

References 43 publications

Preparation of Silica Composite Vitrimers via One‐Shot Transformation from Simple Polyesters

Preparation of Silica Composite Vitrimers via One‐Shot Transformation from Simple Polyesters

Enhanced Shape Memory Metal-Coordinated Poly(aryl ether ketone)s with Tunable Gradient-Deformation Behaviors as well as Self-Healing and Reprocessing Abilities

Vitrimer composites: current status and future challenges

Contact Info

Product

Resources

About