LrgpV1, Main, Exploration, bibRecord, 000B95

Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer

Identifieur interne : 000B95 ( Main/Exploration ); précédent : 000B94; suivant : 000B96

Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer

Auteurs : HAIFENG YU [Japon] ; Takaomi Kobayashi [Japon] ; Guo-Hua Hu [France]

Source :

Polymer : (Guildford) [ 0032-3861 ] ; 2011.

RBID : Pascal:11-0217036

Descripteurs français

Pascal (Inist)
- Polymère amphiphile, Ethylène oxyde copolymère, Copolymère biséquencé, Méthacrylate copolymère, Copolymère photosensible, Polymère cristal liquide, Etat thermotrope, Chaîne latérale, Composé azoïque, Préparation, Polymérisation transfert atome, Transition phase, Couche mince, Structure domaine, Nanostructure, Alignement, Effet photoinduit, Rayonnement polarisé, Etude expérimentale, Orientation microdomaine, Effet thermoinduit.

English descriptors

KwdEn :
- Alignment, Amphiphilic polymer, Atom transfer polymerization, Azo compound, Diblock copolymer, Domain structure, Ethylene oxide copolymer, Experimental study, Light sensitive copolymer, Liquid crystal polymers, Methacrylate copolymer, Nanostructure, Phase transitions, Photoinduced effect, Polarized radiation, Preparation, Side chain, Thermotropic state, Thin film.

Abstract

Using a bromo-terminated poly(ethylene oxide) as a macroinitiator, an amphiphilic liquid-crystalline (LC) diblock copolymer with an azobenzene moiety as a nematic mesogen was prepared by an atom transfer radical polymerization process. In thin films of the well-defined diblock copolymer with the mesogenic block as a continuous phase upon microphase separation, the influence of supramolecular cooperative motion on the microphase-separated nanocylinders was systematically studied. Although the major phase of the hydrophobic nematic LC block showed only one-dimensional order, it could endow the separated minor phase of the hydrophilic PEO nanocylinders with three-dimensionally ordered structures. Both out-of-plane perpendicular and in-plane parallel patternings of the regularly ordered nanocylinder arrays were successfully fabricated on macroscopic scales by thermal annealing and photoalignment, respectively. The microphase-separated nanostructures with high regularity showed excellent reproducibility and mass production, which might guarantee nanotemplated fabrication processes and would lead to novel industrial applications in macromolecular engineering.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000204
to stream PascalFrancis, to step Curation: 000907
to stream PascalFrancis, to step Checkpoint: 000165
to stream Main, to step Merge: 000D22
to stream Main, to step Curation: 000B95

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer</title>
<author><name sortKey="Haifeng Yu" sort="Haifeng Yu" uniqKey="Haifeng Yu" last="Haifeng Yu">HAIFENG YU</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Top Runner Incubation Center for Academia-Industry Fusion, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka 940-2188</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka, Niigata 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka, Niigata 940-2188</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Kobayashi, Takaomi" sort="Kobayashi, Takaomi" uniqKey="Kobayashi T" first="Takaomi" last="Kobayashi">Takaomi Kobayashi</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka, Niigata 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka, Niigata 940-2188</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hu, Guo Hua" sort="Hu, Guo Hua" uniqKey="Hu G" first="Guo-Hua" last="Hu">Guo-Hua Hu</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratory Reactions and Process Engineering, Nancy University, CNRS-ENSIC-INPL, 1 rue Grandville, BP 20451</s1>
<s2>54001 Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
<settlement type="city">Nancy</settlement>
</placeName>
<placeName><settlement type="city">Nancy</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="laboratoire" n="5">Laboratoire réactions et génie des procédés</orgName>
<orgName type="university">Université de Lorraine</orgName>
<orgName type="institution">Centre national de la recherche scientifique</orgName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">11-0217036</idno>
<date when="2011">2011</date>
<idno type="stanalyst">PASCAL 11-0217036 INIST</idno>
<idno type="RBID">Pascal:11-0217036</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000204</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000907</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">000165</idno>
<idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000165</idno>
<idno type="wicri:doubleKey">0032-3861:2011:Haifeng Yu:photocontrolled:microphase:separation</idno>
<idno type="wicri:Area/Main/Merge">000D22</idno>
<idno type="wicri:Area/Main/Curation">000B95</idno>
<idno type="wicri:Area/Main/Exploration">000B95</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer</title>
<author><name sortKey="Haifeng Yu" sort="Haifeng Yu" uniqKey="Haifeng Yu" last="Haifeng Yu">HAIFENG YU</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Top Runner Incubation Center for Academia-Industry Fusion, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka 940-2188</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka, Niigata 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka, Niigata 940-2188</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Kobayashi, Takaomi" sort="Kobayashi, Takaomi" uniqKey="Kobayashi T" first="Takaomi" last="Kobayashi">Takaomi Kobayashi</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka</s1>
<s2>Nagaoka, Niigata 940-2188</s2>
<s3>JPN</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagaoka, Niigata 940-2188</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Hu, Guo Hua" sort="Hu, Guo Hua" uniqKey="Hu G" first="Guo-Hua" last="Hu">Guo-Hua Hu</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratory Reactions and Process Engineering, Nancy University, CNRS-ENSIC-INPL, 1 rue Grandville, BP 20451</s1>
<s2>54001 Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
<settlement type="city">Nancy</settlement>
</placeName>
<placeName><settlement type="city">Nancy</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="laboratoire" n="5">Laboratoire réactions et génie des procédés</orgName>
<orgName type="university">Université de Lorraine</orgName>
<orgName type="institution">Centre national de la recherche scientifique</orgName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Polymer : (Guildford)</title>
<title level="j" type="abbreviated">Polymer : (Guildf.)</title>
<idno type="ISSN">0032-3861</idno>
<imprint><date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Polymer : (Guildford)</title>
<title level="j" type="abbreviated">Polymer : (Guildf.)</title>
<idno type="ISSN">0032-3861</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alignment</term>
<term>Amphiphilic polymer</term>
<term>Atom transfer polymerization</term>
<term>Azo compound</term>
<term>Diblock copolymer</term>
<term>Domain structure</term>
<term>Ethylene oxide copolymer</term>
<term>Experimental study</term>
<term>Light sensitive copolymer</term>
<term>Liquid crystal polymers</term>
<term>Methacrylate copolymer</term>
<term>Nanostructure</term>
<term>Phase transitions</term>
<term>Photoinduced effect</term>
<term>Polarized radiation</term>
<term>Preparation</term>
<term>Side chain</term>
<term>Thermotropic state</term>
<term>Thin film</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Polymère amphiphile</term>
<term>Ethylène oxyde copolymère</term>
<term>Copolymère biséquencé</term>
<term>Méthacrylate copolymère</term>
<term>Copolymère photosensible</term>
<term>Polymère cristal liquide</term>
<term>Etat thermotrope</term>
<term>Chaîne latérale</term>
<term>Composé azoïque</term>
<term>Préparation</term>
<term>Polymérisation transfert atome</term>
<term>Transition phase</term>
<term>Couche mince</term>
<term>Structure domaine</term>
<term>Nanostructure</term>
<term>Alignement</term>
<term>Effet photoinduit</term>
<term>Rayonnement polarisé</term>
<term>Etude expérimentale</term>
<term>Orientation microdomaine</term>
<term>Effet thermoinduit</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Using a bromo-terminated poly(ethylene oxide) as a macroinitiator, an amphiphilic liquid-crystalline (LC) diblock copolymer with an azobenzene moiety as a nematic mesogen was prepared by an atom transfer radical polymerization process. In thin films of the well-defined diblock copolymer with the mesogenic block as a continuous phase upon microphase separation, the influence of supramolecular cooperative motion on the microphase-separated nanocylinders was systematically studied. Although the major phase of the hydrophobic nematic LC block showed only one-dimensional order, it could endow the separated minor phase of the hydrophilic PEO nanocylinders with three-dimensionally ordered structures. Both out-of-plane perpendicular and in-plane parallel patternings of the regularly ordered nanocylinder arrays were successfully fabricated on macroscopic scales by thermal annealing and photoalignment, respectively. The microphase-separated nanostructures with high regularity showed excellent reproducibility and mass production, which might guarantee nanotemplated fabrication processes and would lead to novel industrial applications in macromolecular engineering.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Japon</li>
</country>
<region><li>Grand Est</li>
<li>Lorraine (région)</li>
</region>
<settlement><li>Nancy</li>
</settlement>
<orgName><li>Centre national de la recherche scientifique</li>
<li>Laboratoire réactions et génie des procédés</li>
<li>Université de Lorraine</li>
</orgName>
</list>
<tree><country name="Japon"><noRegion><name sortKey="Haifeng Yu" sort="Haifeng Yu" uniqKey="Haifeng Yu" last="Haifeng Yu">HAIFENG YU</name>
</noRegion>
<name sortKey="Haifeng Yu" sort="Haifeng Yu" uniqKey="Haifeng Yu" last="Haifeng Yu">HAIFENG YU</name>
<name sortKey="Kobayashi, Takaomi" sort="Kobayashi, Takaomi" uniqKey="Kobayashi T" first="Takaomi" last="Kobayashi">Takaomi Kobayashi</name>
</country>
<country name="France"><region name="Grand Est"><name sortKey="Hu, Guo Hua" sort="Hu, Guo Hua" uniqKey="Hu G" first="Guo-Hua" last="Hu">Guo-Hua Hu</name>
</region>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/LrgpV1/Data/Main/Exploration

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000B95 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000B95 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Lorraine
   |area=    LrgpV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     Pascal:11-0217036
   |texte=   Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer
}}

This area was generated with Dilib version V0.6.32.
Data generation: Sat Nov 11 15:47:48 2017. Site generation: Wed Mar 6 23:31:34 2024

	Serveur d'exploration sur le LRGP
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur le LRGP

Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer

Photocontrolled microphase separation in a nematic liquid-crystalline diblock copolymer

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri