6533b825fe1ef96bd1283112

RESEARCH PRODUCT

Molecular adhesion interactions between Langmuir monolayers and solid substrates

Karlheinz GrafHans Riegler

subject

LangmuirChemistrytechnology industry and agricultureDispersive adhesionAdhesionLangmuir–Blodgett filmContact angleSurface tensionColloid and Surface ChemistryChemical engineeringMonolayerOrganic chemistrylipids (amino acids peptides and proteins)Wetting

description

Abstract Substrate-monolayer adhesion interactions between differently prepared SiO2 surfaces and Langmuir monolayers were investigated. From the relation between the contact angle and the surface tension of a Langmuir monolayer in the configuration of Langmuir wetting the work of adhesion between the substrate and the monolayer as a function of the molecular packing and the transfer ratios was determined. Thus the molecular work of adhesion of different SiO2-dimyristoylphosphatidylethanolamine surfaces was quantified. The relation between the local adhesion interactions and the molecular packing and structure is presented and substrate-induced phase transitions are discussed.

https://doi.org/10.1016/s0927-7757(96)03923-4