In an article, author is Yang, Rui, once mentioned the application of 363-72-4, COA of Formula: C6HF5, Name is Pentafluorobenzene, molecular formula is C6HF5, molecular weight is 168.0642, MDL number is MFCD00000286, category is benzoxazole. Now introduce a scientific discovery about this category.
Cross-linkedpoly(benzoxazole-co-siloxane) networks with high thermal stability and low dielectric constant based on a newortho-amidefunctional benzoxazine
In this study, an amide functionalized bis-benzoxazine (AI-al) has been synthesized using allylamine,ortho-amide functional bis-phenol and paraformaldehyde as raw materials via Mannich condensation. This newly obtained benzoxazine has been used to react with polydimethylsiloxane (PDMS) through hydrosilylation to form poly(benzoxazine-co-amide-co-siloxane) (AI-al-PDMS) featuring siloxane, amide and benzoxazine as repeating units. The chemical structures of both oxazine ring-containing monomer and copolymer are confirmed by NMR and FT-IR spectroscopies. Besides, the thermally activated polymerization behaviors of AI-al and AI-al-PDMS are investigated by DSC, and the subsequent conversion of benzoxazole formation is studied by in situ FT-IR. Moreover, dynamic mechanical analysis and thermogravimetric analysis are used to determine the thermal properties of the cross-linked polymers. The resulting cross-linked poly(benzoxazole-co-siloxane) derived from AI-al-PDMS shows excellent thermal stability (noT(g)can be observed before 400 degrees C; Td5 of 393 degrees C) and low dielectric constants (2.52-2.13 in the frequency range of 1 Hz to 1 MHz), evidencing its great potential applications in electronic packing, aerospace, and other high-performance fields.
If you are interested in 363-72-4, you can contact me at any time and look forward to more communication. COA of Formula: C6HF5.
Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem