Bio-based imine- and disulfide-containing epoxy vitrimers with practical self-healing properties at room temperature DOI
Takashi Yoshimura, Kaito Sugane, Mitsuhiro Shibata

и другие.

Polymers from Renewable Resources, Год журнала: 2025, Номер unknown

Опубликована: Май 26, 2025

Bio-based vitrimers have attracted considerable attention because of their carbon neutrality, healability, and recyclability, which contribute to resource saving energy saving. The reactions vanillin with cystamine 1,6-diaminohexane yielded a phenolic hardener containing both imine disulfide groups (DVNCTA) only (DVNDAH), respectively. These hardeners were utilized cure epoxy resin mixtures comprising bio-based polyglycerol polyglycidyl ether (PGPE) petroleum-based flexible poly (ethylene glycol) diglycidyl (PEGDGE) in varying molar ratios. cross-linking density, glass transition temperature, mechanical strength the DVNCTA-cured diminished as ratio PGPE PEGDGE decreased. Remarkably, all cured products underwent at least three successful self-healing cycles by standing room temperature for 24 h. tensile strength-based healing efficiency ( η σ ) improved decreasing ratios, reaching maximum (100%) PGPE/PEGDGE 1/2. Notably, when comparing DVNCTA- DVNDAH-cured identical former exhibited significantly superior performance.

Язык: Английский

Constructing Fully Biobased Epoxy Vitrimer Based on Disulfide Bonds with Desired Mechanical, Recyclability, and Degradability Properties DOI
Siang‐Piao Chai,

Yingling Fang,

Zhuo Chen

и другие.

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 14, 2025

Язык: Английский

Процитировано

0
Bio-based imine- and disulfide-containing epoxy vitrimers with practical self-healing properties at room temperature DOI
Takashi Yoshimura, Kaito Sugane, Mitsuhiro Shibata

и другие.

Polymers from Renewable Resources, Год журнала: 2025, Номер unknown

Опубликована: Май 26, 2025

Bio-based vitrimers have attracted considerable attention because of their carbon neutrality, healability, and recyclability, which contribute to resource saving energy saving. The reactions vanillin with cystamine 1,6-diaminohexane yielded a phenolic hardener containing both imine disulfide groups (DVNCTA) only (DVNDAH), respectively. These hardeners were utilized cure epoxy resin mixtures comprising bio-based polyglycerol polyglycidyl ether (PGPE) petroleum-based flexible poly (ethylene glycol) diglycidyl (PEGDGE) in varying molar ratios. cross-linking density, glass transition temperature, mechanical strength the DVNCTA-cured diminished as ratio PGPE PEGDGE decreased. Remarkably, all cured products underwent at least three successful self-healing cycles by standing room temperature for 24 h. tensile strength-based healing efficiency ( η σ ) improved decreasing ratios, reaching maximum (100%) PGPE/PEGDGE 1/2. Notably, when comparing DVNCTA- DVNDAH-cured identical former exhibited significantly superior performance.

Язык: Английский

Процитировано

0