Serveur d'exploration sur la simulation d'un remplissage de moule

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.

Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure

Identifieur interne : 000112 ( France/Analysis ); précédent : 000111; suivant : 000113

Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure

Auteurs : Branislav Husár [France, Slovaquie] ; Sophie Commereuc [France] ; Štefan Chmela [Slovaquie] ; Vincent Verney [France]

Source :

Mots-clés :

Abstract

The photoreactivity of polystyrene bearing photoreactive benzil (BZ) pendant groups was studied. Upon irradiation (λ > 370 nm), BZ groups were transformed to benzoyl peroxide (BP) groups that caused crosslinking of the polymer upon heating. The main goal of this study was to characterize the final network. Melt viscoelasticity is a powerful method to assess some specific parameters of a crosslinking process (gel point, crosslink density). Classical methods based on low‐frequency slope variations, such as the Winter and Chambon method, were successfully applied. A good correlation was established between the content of BP groups after the first irradiation and the final density of the network after crosslinking. It was determined that at least two peroxidic species (BP groups) per macromolecular chain are necessary to reach the gel point. The concentration of BZ groups and their conversion into BP groups are the factors supporting a denser network. Copyright © 2010 Society of Chemical Industry


Url:
DOI: 10.1002/pi.2901


Affiliations:


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


Links to Exploration step

ISTEX:1D3A4AE7ED76E5640F326BD2149A9B60A9183704

Le document en format XML

<record>
<TEI wicri:istexFullTextTei="biblStruct">
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en">Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure</title>
<author>
<name sortKey="Husar, Branislav" sort="Husar, Branislav" uniqKey="Husar B" first="Branislav" last="Husár">Branislav Husár</name>
</author>
<author>
<name sortKey="Commereuc, Sophie" sort="Commereuc, Sophie" uniqKey="Commereuc S" first="Sophie" last="Commereuc">Sophie Commereuc</name>
</author>
<author>
<name sortKey="Chmela, Stefan" sort="Chmela, Stefan" uniqKey="Chmela S" first="Štefan" last="Chmela">Štefan Chmela</name>
</author>
<author>
<name sortKey="Verney, Vincent" sort="Verney, Vincent" uniqKey="Verney V" first="Vincent" last="Verney">Vincent Verney</name>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:1D3A4AE7ED76E5640F326BD2149A9B60A9183704</idno>
<date when="2010" year="2010">2010</date>
<idno type="doi">10.1002/pi.2901</idno>
<idno type="url">https://api.istex.fr/document/1D3A4AE7ED76E5640F326BD2149A9B60A9183704/fulltext/pdf</idno>
<idno type="wicri:Area/Istex/Corpus">005444</idno>
<idno type="wicri:Area/Istex/Curation">005444</idno>
<idno type="wicri:Area/Istex/Checkpoint">000D96</idno>
<idno type="wicri:doubleKey">0959-8103:2010:Husar B:characterization:of:networks</idno>
<idno type="wicri:Area/Main/Merge">001198</idno>
<idno type="wicri:Area/Main/Curation">001190</idno>
<idno type="wicri:Area/Main/Exploration">001190</idno>
<idno type="wicri:Area/France/Extraction">000112</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title level="a" type="main" xml:lang="en">Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure</title>
<author>
<name sortKey="Husar, Branislav" sort="Husar, Branislav" uniqKey="Husar B" first="Branislav" last="Husár">Branislav Husár</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>Clermont Université, Université Blaise Pascal, Laboratoire de Photochimie Moléculaire et Macromoléculaire, BP 10448, F‐63000 Clermont‐Ferrand</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Clermont‐Ferrand</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>CNRS, UMR 6505, LPMM, F‐63177 Aubière Cedex</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Aubière</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="1">
<country xml:lang="fr">Slovaquie</country>
<wicri:regionArea>Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 842 36 Bratislava 4</wicri:regionArea>
<wicri:noRegion>842 36 Bratislava 4</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Commereuc, Sophie" sort="Commereuc, Sophie" uniqKey="Commereuc S" first="Sophie" last="Commereuc">Sophie Commereuc</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>CNRS, UMR 6505, LPMM, F‐63177 Aubière Cedex</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Aubière</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>Clermont Université, ENSCCF, Laboratoire de Photochimie Moléculaire et Macromoléculaire, BP 10448, F‐63000 Clermont‐Ferrand</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Clermont‐Ferrand</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Chmela, Stefan" sort="Chmela, Stefan" uniqKey="Chmela S" first="Štefan" last="Chmela">Štefan Chmela</name>
<affiliation wicri:level="1">
<country xml:lang="fr">Slovaquie</country>
<wicri:regionArea>Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 842 36 Bratislava 4</wicri:regionArea>
<wicri:noRegion>842 36 Bratislava 4</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Verney, Vincent" sort="Verney, Vincent" uniqKey="Verney V" first="Vincent" last="Verney">Vincent Verney</name>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>Clermont Université, Université Blaise Pascal, Laboratoire de Photochimie Moléculaire et Macromoléculaire, BP 10448, F‐63000 Clermont‐Ferrand</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Clermont‐Ferrand</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3">
<country xml:lang="fr">France</country>
<wicri:regionArea>CNRS, UMR 6505, LPMM, F‐63177 Aubière Cedex</wicri:regionArea>
<placeName>
<region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Auvergne</region>
<settlement type="city">Aubière</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series>
<title level="j">Polymer International</title>
<title level="j" type="abbrev">Polym. Int.</title>
<idno type="ISSN">0959-8103</idno>
<idno type="eISSN">1097-0126</idno>
<imprint>
<publisher>John Wiley & Sons, Ltd.</publisher>
<pubPlace>Chichester, UK</pubPlace>
<date type="published" when="2010-12">2010-12</date>
<biblScope unit="volume">59</biblScope>
<biblScope unit="issue">12</biblScope>
<biblScope unit="page" from="1563">1563</biblScope>
<biblScope unit="page" to="1570">1570</biblScope>
</imprint>
<idno type="ISSN">0959-8103</idno>
</series>
<idno type="istex">1D3A4AE7ED76E5640F326BD2149A9B60A9183704</idno>
<idno type="DOI">10.1002/pi.2901</idno>
<idno type="ArticleID">PI2901</idno>
</biblStruct>
</sourceDesc>
<seriesStmt>
<idno type="ISSN">0959-8103</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>benzil</term>
<term>crosslinking</term>
<term>gel point</term>
<term>melt viscoelasticity</term>
<term>phototransformation</term>
<term>polystyrene</term>
</keywords>
</textClass>
<langUsage>
<language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">The photoreactivity of polystyrene bearing photoreactive benzil (BZ) pendant groups was studied. Upon irradiation (λ > 370 nm), BZ groups were transformed to benzoyl peroxide (BP) groups that caused crosslinking of the polymer upon heating. The main goal of this study was to characterize the final network. Melt viscoelasticity is a powerful method to assess some specific parameters of a crosslinking process (gel point, crosslink density). Classical methods based on low‐frequency slope variations, such as the Winter and Chambon method, were successfully applied. A good correlation was established between the content of BP groups after the first irradiation and the final density of the network after crosslinking. It was determined that at least two peroxidic species (BP groups) per macromolecular chain are necessary to reach the gel point. The concentration of BZ groups and their conversion into BP groups are the factors supporting a denser network. Copyright © 2010 Society of Chemical Industry</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>France</li>
<li>Slovaquie</li>
</country>
<region>
<li>Auvergne</li>
<li>Auvergne-Rhône-Alpes</li>
</region>
<settlement>
<li>Aubière</li>
<li>Clermont‐Ferrand</li>
</settlement>
</list>
<tree>
<country name="France">
<region name="Auvergne-Rhône-Alpes">
<name sortKey="Husar, Branislav" sort="Husar, Branislav" uniqKey="Husar B" first="Branislav" last="Husár">Branislav Husár</name>
</region>
<name sortKey="Commereuc, Sophie" sort="Commereuc, Sophie" uniqKey="Commereuc S" first="Sophie" last="Commereuc">Sophie Commereuc</name>
<name sortKey="Commereuc, Sophie" sort="Commereuc, Sophie" uniqKey="Commereuc S" first="Sophie" last="Commereuc">Sophie Commereuc</name>
<name sortKey="Husar, Branislav" sort="Husar, Branislav" uniqKey="Husar B" first="Branislav" last="Husár">Branislav Husár</name>
<name sortKey="Verney, Vincent" sort="Verney, Vincent" uniqKey="Verney V" first="Vincent" last="Verney">Vincent Verney</name>
<name sortKey="Verney, Vincent" sort="Verney, Vincent" uniqKey="Verney V" first="Vincent" last="Verney">Vincent Verney</name>
</country>
<country name="Slovaquie">
<noRegion>
<name sortKey="Husar, Branislav" sort="Husar, Branislav" uniqKey="Husar B" first="Branislav" last="Husár">Branislav Husár</name>
</noRegion>
<name sortKey="Chmela, Stefan" sort="Chmela, Stefan" uniqKey="Chmela S" first="Štefan" last="Chmela">Štefan Chmela</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/corpus/SimuPvV1/Data/France/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000112 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Terre
   |area=    SimuPvV1
   |flux=    France
   |étape=   Analysis
   |type=    RBID
   |clé=     ISTEX:1D3A4AE7ED76E5640F326BD2149A9B60A9183704
   |texte=   Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure
}}

Wicri

This area was generated with Dilib version V0.6.23.
Data generation: Thu Sep 15 17:34:16 2016. Site generation: Thu Sep 15 18:23:44 2016