Bio-based self-healing coating material derived from renewable castor oil and multifunctional alamine

Wei, Xiao; Ge, Junqi; Gao, Fei; Chen, Fengbiao; Zhang, Wen‐Xiong; Zhong, Jiang; Lin, Cong; Shen, Liang

doi:10.1016/j.eurpolymj.2021.110804

Cited by 20 publications

(12 citation statements)

References 49 publications

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“…Two studies report their reaction with fossil-based diamines such as xylene diamine or 4,4diaminocyclohexylmethane, which led to the synthesis of partially biobased vinylogous urethane vitrimers. [145,146] Lin and coworkers described the synthesis of a fully biobased vinylogous urethane vitrimer. [147] They modified castor oil to bear nine acetoacetate groups by thiol-ene reaction of the double bonds with 1-thioglycerol followed by esterification of the OH groups with t-butylacetoacetate (Act1,Figure 16).…”

Section: Vinylogous Urethanesmentioning

confidence: 99%

Fully Biobased Vitrimers: Future Direction toward Sustainable Cross‐Linked Polymers

Vidil

Llevot

2022

Macro Chemistry & Physics

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Improving the sustainability of polymer networks is a crucial challenge in polymer science due to their important role in industry. Their traditional syntheses conflict with several principles of green chemistry as the employed monomers are petroleum-based, their production involves the use of toxic reagents, and their permanently cross-linked structures impede their chemical recycling and reshaping. The development of vitrimers represents a unique solution to address the issue of polymer network end-of-life by enabling reprocessability while maintaining good thermomechanical properties and solvent resistance. Although over the last decades biomass has proved to be an excellent feedstock for the production of permanently cross-linked polymers, the field of biobased vitrimers is still in its infancy. In this review, a comprehensive overview of vitrimers synthesized from biobased monomers is presented. The emphasis is set on the compatibility of the biomass structure with the nature of the dynamic covalent chemistry, as well as the sustainability of the synthetic approaches. Implementing renewable feedstocks and recyclability in the production of polymer networks paves the way for the development of the next generation of sustainable materials.

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Section: Vinylogous Urethanesmentioning

confidence: 99%

Fully Biobased Vitrimers: Future Direction toward Sustainable Cross‐Linked Polymers

Vidil

Llevot

2022

Macro Chemistry & Physics

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…”

Section: Resultsmentioning

confidence: 99%

“…The cracked sample was then placed in a 90 °C oven for varying times (namely, 0 h, 2 h, 6 h, 12 h, and 24 h). The healing efficiency (η) was able to calculated by the following equation (Qi et al, 2021;Wei et al, 2021): Where the tensile strength of the healed and the original sample samples was represented by ε healed and ε origianl , respectively. The healing efficiency (η) is also shown in Figure 4E and the mechanical properties were listed in Supplementary Tables S1,S2.…”

Section: Self-healing Of Dynamic Epoxy Resin Networkmentioning

confidence: 99%

Exploring of the property of epoxy resins based on diselenide and disulfide dynamic linkers

Wei

Liu²,

Guo³

et al. 2022

Front. Chem.

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Over the last decade, there has been a lot of interest in incorporating dynamic covalent bonds (DCBs) into epoxy resins. Because diselenide and disulfide bonds have similar properties, they are frequently used as DCBs in self-healing epoxy networks. In this paper, we present diselenide and disulfide dynamic linkers containing epoxy networks by analyzing the effects of mechanical properties, thermal stability, activation energies, and self-healing properties. The glass transition temperature (Tg) values, mechanical properties, crosslinking density (ve), and thermal stability of disulfide linkers networks were higher than those of diselenide linkers networks, according to our research. The activation energies of disulfide linkers were higher than those of diselenide linkers (up to 14 kJ/mol), but their healing efficiency was lower than that of the diselenide network. These findings demonstrate the advantages of diselenide and disulfide dynamic linkers in epoxy networks systems, as well as a method for designing and preparing the appropriate diselenide dynamic linkers or disulfide dynamic linkers incorporated into epoxy networks for the appropriate application and processing technology.

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“…To make thermosets much more sustainable, much recent attention has been focused on designing and synthesizing biobased CANs from various renewable feedstocks such as VOs, [46][47][48] lignin and its derivatives, [49][50][51][52] natural rubber, 53,54 and sugars. 52,55 Many attractive biobased CANs have been fabricated using different dynamic covalent chemistries such as transesterification, 56,57 disulfide metathesis, 27,58 dynamic imine bond, 59,60 carbamate exchange, 61,62 dynamic acetal bond, 63,64 DA reaction, 65,66 dynamic hindered urea bond, 67,68 silyl ether (Si-O) exchange, 69 and dynamic boronic ester bond.…”

Section: Introductionmentioning

confidence: 99%

Biobased covalent adaptable networks: towards better sustainability of thermosets

Zhao

Tian

et al. 2022

Green Chem.

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Bio-based self-healing coating material derived from renewable castor oil and multifunctional alamine

Cited by 20 publications

References 49 publications

Fully Biobased Vitrimers: Future Direction toward Sustainable Cross‐Linked Polymers

Fully Biobased Vitrimers: Future Direction toward Sustainable Cross‐Linked Polymers

Exploring of the property of epoxy resins based on diselenide and disulfide dynamic linkers

Biobased covalent adaptable networks: towards better sustainability of thermosets

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