Studies of mixed monalayers of lecithin and organometallic compounds

• Autorzy: Trela Z. , Przestalski S. , Hladyszowski J.
• Języki publikacji: EN

Abstrakty

EN

Compression isotherms of mixed monomolecular layers at water-air interface, formed of lecithin (DPPC) and an organometallic compound (Me3PbCl, Me3SnCl, Et3PbCl, Et3SnCl) at various molar fractions (x = 0.0,0.2,0.4, 0.6, 0.8, 1.0) were studied. It was found that compression isotherms of the pure organometallic compounds (x = 1.0), in the range of mean molecular areas of 1.0 nm2 and ca. 0.15 nm2, did not show any practical increase in surface pressure. The isobaric relationship between mean molecular areas and molar fraction of an organometallic modifier are linear for most of the pressures chosen, which follows from analysis of the experimental isotherms obtained and demonstrates the ideal behaviour of the system under study. All the compounds studied form nearly ideally-behaving systems with lecithin. Presumably, the effects observed may be the result of molecular aggregation on the water phase surface, which in a mixed monolayer may lead to separation of the phases: organometallic compound - lecithin.

Słowa kluczowe

EN

interaction; living organism; lecithin; organometallic compound; organolead; organic compound; mixed monolayer

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 1997
• Tom: 06
• Numer: 4
• Opis fizyczny: p.33-36,fig.,ref.

Twórcy

autor

Trela Z.

• Agricultural University, Norwida 25, 50-375 Wroclaw, Poland

autor

Przestalski S.

autor

Hladyszowski J.