Creator:

Hongmei Wu

Contributor:

Wei Gaoyuan

Tags:

Poisson ratio, polymers, self-organized systems, superlattices, auxetics, auxegen, auxeticity

Abstract:

A combined molecular dynamics and molecular mechanics method has been developed for estimating Poisson's ratios of certain types of molecular auxetics at various temperatures. The temperature dependence of the auxeticity of a special class of molecular auxetics, namely, a self-expanding supramolecular network of auxegens containing alternating phenyl and acetylene links, is studied with use of this approximation method. The simulation results show that as temperature increases from 0 to 300 K, the auxeticity of the resulting superlattice or van der Waals network of auxegens decreases from the initial self-expandability to two negatively small Poisson ratios on the xoy plane.

Place of publishing:

Poznań

Publisher:

OWN

Date submitted:

2004.12.13

Resource Type:

artykuł

Format:

application/pdf

Language:

eng