Polyurethane vitrimers: Chemistry, properties and applications

Tao, Yue1; Liang, Xiangyu1,2,3,4; Zhang, Jun1; Lei, Iek Man1,5; Liu, Ji1,6

2022-12-01

10.1002/pol.20220625

JOURNAL OF POLYMER SCIENCE   影响因子和分区

2642-4150

2642-4169

Thermosetting polyurethanes (PUs) are ubiquitous in our daily life due to their low cost and attractive properties, such as mechanical robustness, chemical resistance, and thermal stability. However, thermosetting PUs are challenged by their intrinsic non-recyclability. Due to the chemically cross-linked network structures, reprocessability, and controllable degradation of thermosetting PUs are difficult to achieve, tremendous pollution and waste were generated each year. A promising strategy is to introduce "vitrimer" chemistry to the design of thermosetting PUs. Intriguing opportunities, offered by the integration of vitrimers and thermosetting PUs, have enabled the design of high-performance PU materials with exclusive performances, including shape memory, self-healability, degradability, recyclability and reprocessability. This review systematically summarizes the recent advancement in the research on PU vitrimers. First, the classification of reversible covalent chemistry and the preparation of PU vitrimers are discussed. Second, the unique properties of PU vitrimers enabled by the dynamic covalent bonds are reviewed, including shape memory, self-healability, recyclability, reprocessability, adhesion, degradability, and weldability. Potential applications enabled by this intriguing performance are subsequently discussed. Afterwards, we present our perspectives on the challenges that are yet to be addressed for transforming PU vitrimers into high-performance yet recyclable polymer materials.

dynamic covalent bonds polyurethanes recyclability thermosettings vitrimers

SCI ; EI

英语

第一 ; 通讯

Basic Research Program of Shenzhen["JCYJ20210324105211032","GJHZ20210705141809030"] ; Natural Science Foundation of Guangdong Province["2022A1515010152","2021A1515110735","2020A1515110288"] ; Shenzhen Science and Technology Program[RCBS20210609103713046] ; Scientific research platforms and projects of university of Guangdong Provincial Education Office[2022ZDZX3019]

Polymer Science

Polymer Science

WOS:000897846200001

WILEY

20225113271150

Chemical stability ; Crosslinking ; Degradation ; Thermosets

Chemistry:801 ; Chemical Reactions:802.2 ; Organic Polymers:815.1.1

Web of Science

1.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen, Peoples R China
2.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen, Peoples R China
3.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha, Peoples R China
4.Chinese Acad Agr Sci, Ctr Southern Econ Crops, Changsha, Peoples R China
5.Univ Macau, Fac Sci & Technol, Dept Electromech Engn, Macau, Peoples R China
6.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Tao, Yue,Liang, Xiangyu,Zhang, Jun,et al. Polyurethane vitrimers: Chemistry, properties and applications[J]. JOURNAL OF POLYMER SCIENCE,2022,61:2233-2253.

Tao, Yue,Liang, Xiangyu,Zhang, Jun,Lei, Iek Man,&Liu, Ji.(2022).Polyurethane vitrimers: Chemistry, properties and applications.JOURNAL OF POLYMER SCIENCE,61,2233-2253.

Tao, Yue,et al."Polyurethane vitrimers: Chemistry, properties and applications".JOURNAL OF POLYMER SCIENCE 61(2022):2233-2253.