title: Optical monitoring for power law fluids during spin coating.
abstract: Optical monitoring is applied, in situ and in real time, to non-newtonian, power law fluids in the spin coating process. An analytical exact solution is presented for thickness evolution that well fits to most measurement data. As result, typical rheological parameters are obtained for several CMC (carboximetilcelullose) concentrations and rotation speeds. Optical monitoring thus precisely indicates applicability of the model to power law fluids under spin coating.
authors.affiliation: Instituto de Física-Universidade Federal do Rio Grande do Sul (UFRGS), Campus do Vale, CP15051, CEP 91501-970 Porto Alegre, RS, Brasil. pedro.lovato@ufrgs.br
authors.forename: P L G
authors.initials: PL
authors.lastname: Jardim
authors.forename: A F
authors.initials: AF
authors.lastname: Michels
authors.forename: F
authors.initials: F
authors.lastname: Horowitz
mesh_terms: D000465:Algorithms; D002483:Cellulose, Oxidized / Q000032:analysis* / Q000737:chemistry*; D012031:Refractometry / Q000379:methods*; D012212:Rheology / Q000379:methods*
chemical_list: D002483:Cellulose, Oxidized