Light-driven liquid crystalline materials: from photo-induced phase transitions and property modulations to applications

HK Bisoyi, Q Li - Chemical Reviews, 2016 - ACS Publications
Light-driven phenomena both in living systems and nonliving materials have enabled truly
fascinating and incredible dynamic architectures with terrific forms and functions. Recently …

Photoinduced motions in azo-containing polymers

A Natansohn, P Rochon - Chemical reviews, 2002 - ACS Publications
Azobenzene photochemistry is a fascinating area of investigation, on one hand, because it
is fairly wellknown, 1 and on the other hand because it has produced and continues to …

Amphiphilic azo polymers: Molecular engineering, self-assembly and photoresponsive properties

D Wang, X Wang - Progress in Polymer Science, 2013 - Elsevier
Amphiphilic polymers are well known for their characteristics to form various self-assembling
structures under proper conditions. Amphiphilic azo polymers, which are amphiphilic …

Using light to control physical properties of polymers and surfaces with azobenzene chromophores

RH El Halabieh, O Mermut, CJ Barrett - Pure and applied chemistry, 2004 - degruyter.com
Azobenzene chromophores can be switched between two geometric isomers using visible
light. This photoisomerization is rapid, reversible, and of high quantum yield, and the …

Surface relief gratings in host–guest supramolecular materials

T Ubukata, T Seki, K Ichimura - Advanced Materials, 2000 - Wiley Online Library
Surface relief gratings are one of the most promising applications for azobenzene‐
containing polymers (azo‐polymers). Systems investigated to date have contained single …

Induction of Highly Ordered Smectic Phases in Side Chain Liquid Crystalline Polymers by Means of Random Copolymerization

R Imanishi, Y Nagashima, K Takishima, M Hara… - …, 2020 - ACS Publications
The glass transition and melting temperatures of binary random copolymers are mostly
observed as nearly the average of each homopolymer with moderate deviations. However …

Surface-mediated dynamic cooperative motions in azobenzene polymer films

T Seki - Bulletin of the Chemical Society of Japan, 2024 - academic.oup.com
Abstract Azobenzene (1, 2-diphenyldiazene in IUPAC name) is a widely studied, simple,
rodlike photochromic molecule. The trans-(E) to cis-(Z) photoisomerization of this molecule …

Smart photoresponsive polymer systems organized in two dimensions

T Seki - Bulletin of the Chemical Society of Japan, 2007 - academic.oup.com
Light can be used as a precise stimulus by selecting suitable wavelengths, polarization
directions, and intensity, allowing non-contact control. When photoresponsive (mostly …

Induction of Highly Ordered Liquid Crystalline Phase of an Azobenzene Side Chain Polymer by Contact with 4′-Pentyl-4-cyanobiphenyl: An In Situ Study

C Kawakami, M Hara, S Nagano, T Seki - Langmuir, 2022 - ACS Publications
The orientation of liquid crystal (LC) molecules is significantly governed by solid interfaces
and free surfaces, and a variety of functional materials have been developed using these …

Dynamic photoresponsive functions in organized layer systems comprised of azobenzene-containing polymers

T Seki - Polymer journal, 2004 - nature.com
Azobenzene (Az)-containing polymers provide fascinating photoresponsive actuation
systems. When they are organized at interfaces, the motion of Az unit occurring at a …