Development of novel poly(phenylacetylene) network polymers and their mechanical behaviour. Issue 2 (29th January 2014)

• Record Type: Journal Article
• Authors: Grima, Joseph N.; Zerafa, Christine; Brincat, Jean‐Pierre
• Is Part Of: Physica status solidi. Volume 251:Issue 2(2014:Feb.)
• Page Start: 375
• Page End: 382
• Publication Date: 2014-01-29
• Subjects: Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201384254
• Languages: English
• ISSNs: 0370-1972

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="pssb201384254-sec-0001" sec-type="section"> <p>Auxetics exhibit the anomalous property of getting wider rather than thinner when uniaxially stretched, i.e. have a negative Poisson's ratio. This work presents the results of simulations performed on a number of hypothetical poly(phenylacetylene) networks which are meant to mimic the behaviour of rotating scalene triangles. It was shown that such systems do indeed exhibit a negative Poisson's ratio being as low as <italic>c</italic>. −1.2, i.e. lower than the <italic>c</italic>. −1 found in earlier systems. This negative Poisson's ratio is due to the relative rotation of nanoscopic units.</p> </sec> </abstract>