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Temperature diffusivity and heat conductivity of Langmuir–Blodgett–Kuhn and thin spun‐on polymer films
Author(s) -
Fischer Thomas M.,
Knoll Wolfgang
Publication year - 1991
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1991.220020505
Subject(s) - langmuir–blodgett film , thermal diffusivity , materials science , polymer , thermal conductivity , foil method , thin film , pyroelectricity , conductivity , composite material , thermodynamics , chemistry , monolayer , optoelectronics , nanotechnology , physics , ferroelectricity , dielectric
The temperature diffusivity β and heat conductivity κ of thin polymer films were measured at room temperature. Temperature waves were excited at one side of the film and detected at the other side with a pyroelectric foil (PVDF). The dependence of β and κ on chemical and structural parameters have been studied. For the first time, Langmuir–Blodgett–Kuhn multilayer assemblies prepared from “hairy rod” polymers were characterized: μm thin films of stiff polyamides prepared by spincoating exhibit heat conductivities an order of magnitude larger than “classical” polymers.