Patent · US Expired

Amphiphilic monomers with mixed-chain structure and polymers and film composed of at least one monomolecular layer thereof

US5120809A · kind A · utility

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Key dates

Filing dateDec 20, 1989
Grant dateJun 9, 1992
Priority date
Expiry dateDec 20, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F20/60
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Amphiphilic monomers with mixed-chain structures of the formula ##STR1## in which Y denotes --O-- or --NH-- PA1 X denotes a group of the formula --(CH.sub.2).sub.n -- or --(CH.sub.2 --O--CH.sub.2).sub.n -- PA1 l denotes an integer from 0 to 10, PA1 n denotes an integer from 1 to 10, PA1 R.sup.1 denotes hydrogen, methyl, chlorine, cyano, fluorine or bromine, PA1 R.sup.2 denotes C.sub.1 -C.sub.24 -alkyl or C.sub.1 -C.sub.24 -fluoroalkyl and PA1 R.sup.3 denotes C.sub.8 -C.sub.24 -alkyl or C.sub.8 -C.sub.24 -fluoralkyl, with the proviso that the groups R.sup.2 and R.sup.3 contain a different number of carbon atoms. The monomers are polymerized on their own or together with other comonomers. The polymers obtained are suitable for the preparation of ultra-thin layers on a suitable layer support.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.