Synthesis of tetraazacalix[2]arene[2]triazine-containing poly(dimethylsiloxane) with elastic property induced by pinning effect of the calixarene ring was written by Shibata, Ryota;Ishihara, Tsutomu;Tsukamoto, Tadashi;Oishi, Yoshiyuki;Fujimori, Atsuhiro;Shibasaki, Yuji. And the article was included in European Polymer Journal in 2022.Product Details of 2272-40-4 The following contents are mentioned in the article:
Tetraazacalix[2]arene[2]triazine dichloride was polymerized with telechelic poly(dimethylsiloxane)s having NH2 terminals (PDMSx; d.p. x = 8, 18, 38) via solution polycondensation to give the corresponding azacalixarene-containing polymers (ACAT-PDMSx) in good yield. The fraction of the hard ACAT moiety (fHS) of the ACAT-PDMS polymers was calculated to be 33.0%, 20.4%, and 11.6% for x of 8, 18, and 38, resp. The number-average mol. weight (Mn) of the polymers ranged from 20 to 32 kDa, and freestanding tough films were successfully fabricated via solvent cast method. As a control sample, a polymer not containing azacalixarene (AnDCT-PDMS) with Mn and fHS values of 21 kDa and 19.8%, resp., was prepared via the solution polymerization of 2-anilino-4,6-dichloro-1,3,5-triazine (AnDCT) with PDMS8. Although the fHS values of AnDCT-PDMS8 and ACAT-PDMS18 were similar, the film obtained from the former polymer was much softer and sticky at room temperature than that from the latter. The glass transition temperature of the ACAT-PDMSx films ranged from 77°C to 105°C according to thermomech. and dynamic mech. analyses. Wide-angle X-ray diffraction and polarized optical microscopy studies indicated that the azacalixarene units were first locally aggregated via multiple hydrogen bonds within the ACAT-PDMSx films and then were well dispersed in the film on heating. The ACAT-PDMS polymer showed no cytotoxicity to HeLa and IMR-90 cells in the exptl. concentration of below 100μg/mL. This study involved multiple reactions and reactants, such as 4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4Product Details of 2272-40-4).
4,6-Dichloro-N-phenyl-1,3,5-triazin-2-amine (cas: 2272-40-4) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. The haloform reaction, using chlorine and sodium hydroxide, is also able to generate alkyl halides from methyl ketones, and related compounds. Chloroform was formerly produced thus.Product Details of 2272-40-4
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics