Tanaka, Takaaki published the artcileElectrical properties of crosslinked aliphatic polyurea thin films prepared by vapor deposition polymerization, Synthetic Route of 1761-71-3, the publication is Japanese Journal of Applied Physics (2020), 59(3), 036502, database is CAplus.
Vapor deposition polymerization (VDP) is a method for producing high-performance polymeric thin films, such as polyimide, polyamide and polyurea, by co-evaporation of two types of bi-functional monomers on the substrate surface. Polymeric films obtained by VDP have a high dielec. constant and high breakdown voltage and low impurity content due to being solvent-free. In this study, polyurea thin films were prepared by VDP. The relation between the elec. properties and the chem. structures was investigated by IR spectroscopy. The IR spectra of the crosslinked aliphatic polyurea thin films indicated strong intermol. hydrogen bonds even in the disordered network structure without mol. orientation. In addition, the crosslinking agent gave rise to an increase in the concentration of urea groups. Both effects of the crosslinking agent may have contributed to the simultaneous improvement of the dielec. constant and the dielec. loss, even though they generally have a trade-off relationship.
Japanese Journal of Applied Physics published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C8H5IO, Synthetic Route of 1761-71-3.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider