137374-13-1Relevant academic research and scientific papers
Columnar mesomorphism of bent-rod mesogens containing 1,2,4-oxadiazole rings
Gallardo, Hugo,Ferreira, Marli,Vieira, André A.,Westphal, Eduard,Molin, Fernando,Eccher, Juliana,Bechtold, Ivan H.
experimental part, p. 9491 - 9499 (2011/12/15)
In this study, the synthesis, characterization, and mesomorphic properties of ten new bent-rod compounds containing two units of 1,2,4-oxadiazoles are reported. In order to understand the relationship between the structure and the mesomorphic behavior, molecules containing a variety of polar substituents (i.e., I, NO2, NH2, OH) on the central rigid core were prepared. The hexagonal columnar mesomorphism was characterized by DSC and POM and the nature of the mesophases was established through XRD studies. The driving force for self-assembly can be explained by microsegregation between the aliphatic parts and the polar parts, producing a dimer, trimer, and tetramer inside a single disc.
Dendrimers with alternating amine and ether generations
Pan, Yijun,Ford, Warren T.
, p. 8588 - 8593 (2007/10/03)
Dendrimers having alternating aryl benzyl ether and tertiary amine generations and up to 16 bis-(2-methoxyethyl)amine end groups and four internal tertiary amines were synthesized by sequential etherification, amidation of secondary amines, and LiAlH
