We report on the application of two-dimensional micro-scale thermal analysis with a high-speed infrared (IR) camera
equipped with an originally designed optics for the optimum wavelength 3 - 5 micron in order to observe the exothermic
latent heat and thermal diffusion during the phase transitions of organic molecular crystals (n-alkanes; n- pentacosane, ntetracosane,
and n- tricosane) and polymeric spherulites of poly(ethylene oxide) (PEO). The forerunning phenomenon of
phase transition was visualized as the spatial temperature fluctuation by a two-dimensional differential calculus. The
exothermic heat patterns of the lamellae growth of n- alkanes and that of spherulites in the radial direction of PEO were
observed.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.