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  • groups
  • The tissue softness is further enhanced by controlling the purity of the fatty acyl groups and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds. (google.co.uk)
  • wherein the R 2 portion of the softening compound is derived from C 14 -C 24 fatty acyl groups having an Iodine Value of from 105 to about 180, wherein said fatty acyl groups have a cis/trans isomer weight ratio greater than about 80:20, and wherein the majority of said fatty acyl groups are derived from vegetable oil sources. (google.co.uk)
  • Contact angle measurements and fluorescein binding assays showed the presence of quaternary ammonium groups at the surface. (hindawi.com)
  • surface
  • Melt compounding of small amounts of a biocidal polymer with polyethylene has shown producing a composite whose surface is antimicrobial. (hindawi.com)
  • group
  • The term mercaptan /mərˈkæptæn/ was introduced in 1832 by William Christopher Zeise and is derived from the Latin mercurium captāns (capturing mercury) because the thiolate group bonds very strongly with mercury compounds. (wikipedia.org)
  • similar
  • A structurally similar compound, ephedrine, (actually more similar to norepinephrine,) was identified by Japanese chemists in the Ma Huang plant and marketed by Eli Lilly as an oral treatment for asthma. (wikipedia.org)
  • found
  • Ammonium produced from the remineralisation of organic material, exists in elevated concentrations (1 - >14μM) within cohesive shelf sea sediments found in the Celtic Sea (depth: 1-30cm). (wikipedia.org)