Helical Polyacetylene-Based Switchable Chiral Columnar Phases: Frustrated Chain Packing and Two-Way Shape Actuator

Jun Wang; Xiao Qing Liu; Xiang Kui Ren; Ben Zhang; Shuang Yang; Yu Cao; Feng Liu; Bernard Lotz; Er Qiang Chen

doi:10.1002/asia.201600879

Helical Polyacetylene-Based Switchable Chiral Columnar Phases: Frustrated Chain Packing and Two-Way Shape Actuator

Jun Wang
, Xiao Qing Liu
, Xiang Kui Ren
, Ben Zhang
, Shuang Yang
, Yu Cao
, Feng Liu
, Bernard Lotz
, Er Qiang Chen

School of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Chiral columns formed by a helical cis-polyphenylacetylene (PPA) derivative P1 are reversibly switched during a phase transition between two chiral columnar phases: the frustrated Φ_h ^3D-SL phase containing four chains at low temperature and a hexagonal columnar phase Φ_h at high temperature, accompanied by a simultaneous conformational change. The helix–helix transition along the PPA backbone during the Φ_h ^3D-SL-Φ_h transition makes the uniaxially oriented P1 capable of reversibly and reproducibly elongating (132 %) upon heating and contracting upon cooling, exhibiting the behavior of a two-way shape actuator.

Original language	English
Pages (from-to)	2387-2391
Number of pages	5
Journal	Chemistry - An Asian Journal
Volume	11
Issue number	17
DOIs	https://doi.org/10.1002/asia.201600879
State	Published - 6 Sep 2016

Keywords

chirality
frustration
liquid crystals
polymers
two-way shape actuation

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10.1002/asia.201600879

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title = "Helical Polyacetylene-Based Switchable Chiral Columnar Phases: Frustrated Chain Packing and Two-Way Shape Actuator",

abstract = "Chiral columns formed by a helical cis-polyphenylacetylene (PPA) derivative P1 are reversibly switched during a phase transition between two chiral columnar phases: the frustrated Φh 3D-SL phase containing four chains at low temperature and a hexagonal columnar phase Φh at high temperature, accompanied by a simultaneous conformational change. The helix–helix transition along the PPA backbone during the Φh 3D-SL-Φh transition makes the uniaxially oriented P1 capable of reversibly and reproducibly elongating (132 \%) upon heating and contracting upon cooling, exhibiting the behavior of a two-way shape actuator.",

keywords = "chirality, frustration, liquid crystals, polymers, two-way shape actuation",

author = "Jun Wang and Liu, \{Xiao Qing\} and Ren, \{Xiang Kui\} and Ben Zhang and Shuang Yang and Yu Cao and Feng Liu and Bernard Lotz and Chen, \{Er Qiang\}",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2016",

month = sep,

day = "6",

doi = "10.1002/asia.201600879",

language = "英语",

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TY - JOUR

T1 - Helical Polyacetylene-Based Switchable Chiral Columnar Phases

T2 - Frustrated Chain Packing and Two-Way Shape Actuator

AU - Wang, Jun

AU - Liu, Xiao Qing

AU - Ren, Xiang Kui

AU - Zhang, Ben

AU - Yang, Shuang

AU - Cao, Yu

AU - Liu, Feng

AU - Lotz, Bernard

AU - Chen, Er Qiang

PY - 2016/9/6

Y1 - 2016/9/6

N2 - Chiral columns formed by a helical cis-polyphenylacetylene (PPA) derivative P1 are reversibly switched during a phase transition between two chiral columnar phases: the frustrated Φh 3D-SL phase containing four chains at low temperature and a hexagonal columnar phase Φh at high temperature, accompanied by a simultaneous conformational change. The helix–helix transition along the PPA backbone during the Φh 3D-SL-Φh transition makes the uniaxially oriented P1 capable of reversibly and reproducibly elongating (132 %) upon heating and contracting upon cooling, exhibiting the behavior of a two-way shape actuator.

AB - Chiral columns formed by a helical cis-polyphenylacetylene (PPA) derivative P1 are reversibly switched during a phase transition between two chiral columnar phases: the frustrated Φh 3D-SL phase containing four chains at low temperature and a hexagonal columnar phase Φh at high temperature, accompanied by a simultaneous conformational change. The helix–helix transition along the PPA backbone during the Φh 3D-SL-Φh transition makes the uniaxially oriented P1 capable of reversibly and reproducibly elongating (132 %) upon heating and contracting upon cooling, exhibiting the behavior of a two-way shape actuator.

KW - chirality

KW - frustration

KW - liquid crystals

KW - polymers

KW - two-way shape actuation

UR - https://www.scopus.com/pages/publications/84981730274

U2 - 10.1002/asia.201600879

DO - 10.1002/asia.201600879

M3 - 文章

AN - SCOPUS:84981730274

SN - 1861-4728

VL - 11

SP - 2387

EP - 2391

JO - Chemistry - An Asian Journal

JF - Chemistry - An Asian Journal

IS - 17

ER -

Helical Polyacetylene-Based Switchable Chiral Columnar Phases: Frustrated Chain Packing and Two-Way Shape Actuator

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Keywords

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