Chain length dependence of heat capacity

Research output: Contribution to conferencePaper

Abstract

The specific heat capacity was measured with stepscan DSC for linear alkanes, for several cyclic alkanes, for linear and cyclic polyethylenes, and for a linear and a cyclic polystyrene. For the linear alkanes, the specific heat capacity in the equilibrium liquid state decreases as chain length increases; above a carbon number N of 10 (decane) the specific heat asymptotes to a constant value. For the cyclic alkanes, the heat capacity in the equilibrium liquid state is lower than that of the corresponding linear chains and increases with increasing chain length. At high enough molecular weights, the heat capacities of cyclic and linear compounds are expected to be equal, and this is found to be the case for the polyethylenes and polystyrenes studied.

Original languageEnglish
Pages101-103
Number of pages3
StatePublished - Dec 1 2005
EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
Duration: May 1 2005May 5 2005

Conference

ConferenceSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
CountryUnited States
CityBoston, MA
Period05/1/0505/5/05

    Fingerprint

Cite this

Huang, D., Simon, S. L., & McKenna, G. B. (2005). Chain length dependence of heat capacity. 101-103. Paper presented at Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005, Boston, MA, United States.