Photopolymerizable compositions for preparing refractive index images was written by Anonymous. And the article was included in IP.com Journal in 2009.Formula: C26H26N2O2S This article mentions the following:
Both prior art WO-A-2005/124460 and WO-A-2005/124456 photopolymerizable compositions comprising an ethylenically unsaturated monomer, a photoinitiator system, in particular a borate photoinitiator, a triglyceride and preferably a co-initiator (sensitizer) which is usually a dye. Specific prefered borate photoinitiators and sensitizer dyes were identified. In the experiment, the researchers used many compounds, for example, 2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5Formula: C26H26N2O2S).
2,5-Bis(5-(tert-butyl)benzo[d]oxazol-2-yl)thiophene (cas: 7128-64-5) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Formula: C26H26N2O2S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem