SciELO - Scientific Electronic Library Online

vol.34 issue10Conceiving an experimental discipline: a contribution to general chemistryTheoretical and experimental crystal field theory treatment in the inorganic synthesis course author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Química Nova

Print version ISSN 0100-4042


BANNACH, Gilbert et al. Effects of the thermal history on thermal properties of polymers: an experiment for thermal analysis education. Quím. Nova [online]. 2011, vol.34, n.10, pp.1825-1829. ISSN 0100-4042.

Polyethilenetherephtalate (PET) is commonly used in manufacturing of beverage bottles representing a didactic appeal in thermal analysis education due to its presence in the student's day life. Additionally such polymer presents well defined thermal analytical curves and a well known thermal behavior. TGA curve is used to present the thermal stability. The thermal history effects in the thermal properties of a PET sample from a soft drink bottle are used to demonstrate the effect of different heating/cooling conditions on glass transition, melting, crystallization and crystalline degree using DSC curves.

Keywords : thermal analysis education; polymers, PET.

        · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License