PERFLUORONATED CYCLE-CONTAINING TERTIARY AMINES USED AS A BASIS FOR GAS-CONVEYING EMULSIONS AND DEVICE FOR THE PRODUCTION THEREOF
申请人:Otkrytoe Aktsionernoe Obchestvo Nauchno-Proizvodstvennaya Firma "Perftoran"
公开号:EP1354868A1
公开(公告)日:2003-10-22
Tertiary perfluorocycloamines (TPFCAs)of general formula (1)
where n = 1 or 2, m = 2 or 3,
X is
or
wherein at n = 2
X is
as the basis for gas transport emulsions.
TPFCAs comprise a group of compounds which are close in their physicochemical properties to perfluoro-N-(4-methylcyclohexyl)-piperidine, particularly in the critical temperature of dissolution in hexane, and which are used in a mixture, forming a number of compounds with gradually varying characteristics. Owing to this, a greater homogeneity of the fluorocarbon phase is achievable in the emulsions and it becomes possible to enhance the stability of the emulsion particles stabilized by an ethylene oxide-propylene oxide block copolymer, with the absence of toxicity for large animals. A mixture of TPFCAs is prepared by electrochemical fluorination of n-piperidinoheptafluorotoluene in anhydrous hydrogen fluoride. The use of this mixture of TPFCAs instead of individual perfluoro-N-(4-methylcyclohexyl) piperidine simplifies, speeds up the process for preparing perfluorinated organic compounds, makes it cheaper, and provides conditions for broader application of gas transport emulsions based thereon.
通式(1)的叔全氟环胺(TPFCAs)
其中 n = 1 或 2,m = 2 或 3、
X 是
或
其中 n = 2 时
X 是
作为气体输送乳剂的基础。
TPFCAs 由一组化合物组成,它们的物理化学性质接近全氟-N-(4-甲基环己基)-哌啶,尤其是在正己烷中的临界溶解温度。因此,碳氟化合物相在乳液中的均匀度更高,而且可以提高由环氧乙烷-环氧丙烷嵌段共聚物稳定的乳液颗粒的稳定性,同时不会对大型动物产生毒性。通过在无水氟化氢中对正哌啶七氟甲苯进行电化学氟化,制备出 TPFCAs 混合物。使用这种 TPFCAs 混合物代替单个的全氟-N-(4-甲基环己基)哌啶,简化和加快了全氟有机化合物的制备过程,使其成本更低,并为在此基础上更广泛地应用气体输送乳剂提供了条件。