Recently I am researching about AROMATIC POLYIMIDES; OPTICAL-PROPERTIES; SULFUR; INDEX; TRANSPARENT; RESIN, Saw an article supported by the Korea Institute of Science and Technology Information; Ministry of Trade, Industry and Energy (MOTIE, Korea) [10076849]; Space Core Technology Development Program through the National Research Foundation of Korea – Ministry of Science, ICT and Future Planning [NRF-2017M1A3A3A02016310]; Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) – Ministry of Science and ICT; Japan Society for the Promotion of ScienceMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of Science [17H03112]. Published in ELSEVIER SCI LTD in OXFORD ,Authors: Oh, N; Nam, KH; Goh, M; Ku, BC; Kim, JG; You, NH. The CAS is 385-00-2. Through research, I have a further understanding and discovery of 2,6-Difluorobenzoic acid. Recommanded Product: 385-00-2
Totally colorless, transparent, and highly refractive poly(phenylene thioether ether)s (PPTEs) containing thianthrene-2,7-disulfanyl moiety were developed in this study. A new 4,4′-diol aromatic compound, 2,7-(4,4′-diphenol)thiothianthrene (DPTT), with a high sulfur content was designed and synthesized to develop polymers with high refractive indices and high thermal stabilities. The PPTEs were prepared by polycondensation of DPTT with organic dihalogen compounds, such as 2,6-difluorobenzonitrile (DFBN) and 4,6-dichloro-2-(methylthio) pyrimidine (DCMP). The obtained polymers showed good thermal stabilities such as relatively high glass transition temperatures (T(g)s) in the range of 153-176 degrees C and 5% weight loss temperatures (T-5%) over 344 degrees C. The cut-off wavelengths (lambda(0)) of the PPTE films are shorter than 343 nm, and they have a transmittance higher than 93% at 550 nm. The combination of the pyrimidine and high sulfur-containing thianthrene derivatives provides the PPTEs with a high refractive index of 1.7204 and a small birefringence of 0.0106 at 637 nm.
About 2,6-Difluorobenzoic acid, If you have any questions, you can contact Oh, N; Nam, KH; Goh, M; Ku, BC; Kim, JG; You, NH or concate me.. Recommanded Product: 385-00-2
Reference:
Isothiazole – Wikipedia,
,Isothiazole – ScienceDirect.com