Glass transition thermodynamics of organic nanoparticles

Finite size effects of organic particles on glass transition temperature an d heat capacity difference of glass and liquid at glass transition temperat ure are considered by our phenomenological model. As size of the organic pa rticle decreases, its glass transition temperature and heat capacity differ ence decrease. However, this size effect is much weaker than that of the me lting transition. The model predictions are in agreement with available exp erimental results of o-terphenyl and benzyl alcohol nanoparticles. (C) 2001 Elsevier Science B.V. All rights reserved.