In 2022,Ayala, Caitlan E.; Perez, Rocio L.; Mathaga, John K.; Watson, Aanesa; Evans, Tristan; Warner, Isiah M. published an article in ACS Applied Polymer Materials. The title of the article was 《Fluorescent Ionic Probe for Determination of Mechanical Properties of Healed Poly(ethylene-co-methacrylic acid) Ionomer Films》.Product Details of 1193-21-1 The author mentioned the following in the article:
In recent years, advanced materials with properties resembling biol. systems, particularly artificial muscles, have received intense scrutiny. This is because the interesting conformational shape characteristics of such materials have benefited a variety of technologies, including textiles, 3D printing, and medical devices. Although a multitude of shape memory properties have been studied and developed in recent years, self-healing of these polymers after puncture or rupture has also become a major area of study. Most techniques for detection of such processes are mech. based and require considerable hands-on monitoring. Thus, a rapid visual detection method for self-healing is highly desirable. Herein, we describe fluorescence studies for rapid detection of self-healing properties of a partially neutralized sodium ionomer poly(ethylene-co-methacrylic acid) (PEMA). In this study, two different fluorophores, parent non-ionic 4,6-dipyrenylpyrimidine and ionic 4,6-dipyrenylpyrimidinium iodide fluorophores, were evaluated as possible sensors of self-healing. Incorporation of these probes via solution blending and compatibility into a PEMA of these fluorophores were evaluated. Thermal characterizations using differential scanning calorimetry were also performed to elucidate phys. characteristics of healed sites. Ratiometric fluorescence emission variations were explored within puncture-healed ionomer films and related to Young’s modulus properties with good linearity, indicating potential utility of this approach for monitoring elastic modulus properties after healing has occurred. Further statistical analyses of mech. processes using quadratic discriminant anal. resulted in development of several highly accurate predictive models for determining time since damage healing. In the experiment, the researchers used many compounds, for example, 4,6-Dichloropyrimidine(cas: 1193-21-1Product Details of 1193-21-1)
4,6-Dichloropyrimidine(cas: 1193-21-1) is a member of organic chlorides. Organic chloride content in crude oil can be detected through specialized laboratory analysis. Care and attention are essential while sampling and testing.Product Details of 1193-21-1
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia