Free volume, molecular grains, self-organisation, and anisotropic entropy: machining materials

TY - JOUR

T1 - Free volume, molecular grains, self-organisation, and anisotropic entropy

T2 - machining materials

AU - Goodby, John W.

N1 - © 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/Licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PY - 2017/7/11

Y1 - 2017/7/11

N2 - In this article, the relationship between molecular architecture and the formation of twist-bend phases is reviewed under the context of shape dependency. We conclude that the twist-bend phase is a universal phenomenon, which occurs in a wide variety of materials, for dimers through to main chain polymers. In the process, the chemical information on molecular design is effectively lost or irrelevant, and molecular topology takes precedence over electrostatic interactions in mesophase formation. As a consequence of this macro-scale material, engineering by shape alone becomes a possibility, potentially more phases may be realised, and entropy is anisotropic.

AB - In this article, the relationship between molecular architecture and the formation of twist-bend phases is reviewed under the context of shape dependency. We conclude that the twist-bend phase is a universal phenomenon, which occurs in a wide variety of materials, for dimers through to main chain polymers. In the process, the chemical information on molecular design is effectively lost or irrelevant, and molecular topology takes precedence over electrostatic interactions in mesophase formation. As a consequence of this macro-scale material, engineering by shape alone becomes a possibility, potentially more phases may be realised, and entropy is anisotropic.

KW - Anisotropic entropy

KW - dense packing

KW - molecular grains

KW - nano/macro crossover

UR - http://www.scopus.com/inward/record.url?scp=85023183044&partnerID=8YFLogxK

U2 - 10.1080/02678292.2017.1347293

DO - 10.1080/02678292.2017.1347293

M3 - Article

AN - SCOPUS:85023183044

SN - 0267-8292

SP - 1

EP - 9

JO - LIQUID CRYSTALS

JF - LIQUID CRYSTALS

ER -