Solubility of additives: Grafting of itaconic acid onto LDPE by reactive extrusion. II. Effect of stabilizers
Identifieur interne : 009285 ( Main/Exploration ); précédent : 009284; suivant : 009286Solubility of additives: Grafting of itaconic acid onto LDPE by reactive extrusion. II. Effect of stabilizers
Auteurs : S. S. Pesetskii [Biélorussie] ; B. Jurkowski [Pologne] ; Y. M. Krivoguz [Biélorussie] ; Y. A. Olkhov [Russie]Source :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2001-09-29.
English descriptors
- Teeft :
- Appl, Appl polym, Classical stabilizers, Crosslinking, Dynamic mixer, Extrusion, Free radicals, Gaylord, Itaconic acid, Jurkowski, Ldpe, Macromolecule, Molecular weight characteristics, Monomer, Olkhov, Peroxide, Peroxide concentrations, Peroxide initiator, Pesetskii, Polym, Polymer, Reactive, Reactive extrusion, Solubility, Solubility parameters, Stabilizer, Thermostatic chamber, Topological, Topological structure, Uniblock.
Abstract
Static and dynamic mixers set on the Brabender plastograph were used to investigate the grafting of itaconic acid (IA) onto low‐density polyethylene (LDPE) by the reactive extrusion. The initiators of free‐radical reactions were monoperoxide 2,5‐dimethyl‐2‐hydroxy‐5‐tert‐butylperoxy‐3‐hexyne and diperoxide 2,5‐dimethyl‐2,5‐di(tert‐butyl peroxy)‐hexane. The reaction mix contained stabilizers of phenolic type as follows: 2,6‐ditert‐butyl‐4‐methyl phenol; ester of 3,5‐ditert‐butyl‐4‐hydroxyphenyl‐propanoic acid and pentaerythritol; 4‐alkoxy‐2‐hydroxy‐benzophenone; and 1,4‐dihydroxybenzene. The effect of stabilizers, which follow the radical mechanism on the grafting of IA and on the crosslinking, depends on their solubility in the polymer and the monomer. The stabilizers (e.g., 1,4‐dihydroxybenzene) with increased affinity toward the monomer reduce the grafting yield and inhibit crosslinking. At 0.3–0.5 wt % of the stabilizer insoluble in the monomer, the grafting yield can be increased, while inhibiting the LDPE‐g‐IA crosslinking, irrespective of the peroxide used. Hence, classical stabilizers can initiate grafting reactions at raised concentrations, temperatures, and application of the shearing stresses. They also help to obtain a high‐grafting yield and a reduced crosslinking degree. A stabilizer, having a close affinity toward LDPE, influences the LDPE‐g‐IA structure. The stabilizer content of 0.5 wt % transforms the topological structure of LDPE‐g‐IA into uniblock. Its molecular weight distribution (MWD) may be narrow (−Mn/−Mw < 2) or broad (−Mn/−Mw > 2), depending on the concentration of the initiator used. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 3439–3448, 2001
Url:
DOI: 10.1002/app.1800
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 002D41
- to stream Istex, to step Curation: 002D04
- to stream Istex, to step Checkpoint: 001E27
- to stream Main, to step Merge: 009807
- to stream Main, to step Curation: 009285
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Solubility of additives: Grafting of itaconic acid onto LDPE by reactive extrusion. II. Effect of stabilizers</title>
<author><name sortKey="Pesetskii, S S" sort="Pesetskii, S S" uniqKey="Pesetskii S" first="S. S." last="Pesetskii">S. S. Pesetskii</name>
</author>
<author><name sortKey="Jurkowski, B" sort="Jurkowski, B" uniqKey="Jurkowski B" first="B." last="Jurkowski">B. Jurkowski</name>
</author>
<author><name sortKey="Krivoguz, Y M" sort="Krivoguz, Y M" uniqKey="Krivoguz Y" first="Y. M." last="Krivoguz">Y. M. Krivoguz</name>
</author>
<author><name sortKey="Olkhov, Y A" sort="Olkhov, Y A" uniqKey="Olkhov Y" first="Y. A." last="Olkhov">Y. A. Olkhov</name>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">ISTEX</idno>
<idno type="RBID">ISTEX:BF154DE144ED8C4B31A29091DE55F8905F620F12</idno>
<date when="2001" year="2001">2001</date>
<idno type="doi">10.1002/app.1800</idno>
<idno type="url">https://api.istex.fr/ark:/67375/WNG-9TJD88N8-P/fulltext.pdf</idno>
<idno type="wicri:Area/Istex/Corpus">002D41</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002D41</idno>
<idno type="wicri:Area/Istex/Curation">002D04</idno>
<idno type="wicri:Area/Istex/Checkpoint">001E27</idno>
<idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001E27</idno>
<idno type="wicri:doubleKey">0021-8995:2001:Pesetskii S:solubility:of:additives</idno>
<idno type="wicri:Area/Main/Merge">009807</idno>
<idno type="wicri:Area/Main/Curation">009285</idno>
<idno type="wicri:Area/Main/Exploration">009285</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Solubility of additives: Grafting of itaconic acid onto LDPE by reactive extrusion. II. Effect of stabilizers</title>
<author><name sortKey="Pesetskii, S S" sort="Pesetskii, S S" uniqKey="Pesetskii S" first="S. S." last="Pesetskii">S. S. Pesetskii</name>
<affiliation wicri:level="1"><country xml:lang="fr">Biélorussie</country>
<wicri:regionArea>V. A. Belyi Metal‐Polymer Research Institute, National Academy of Sciences, 32a Kirov Street, Gomel, 246652</wicri:regionArea>
<wicri:noRegion>246652</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Jurkowski, B" sort="Jurkowski, B" uniqKey="Jurkowski B" first="B." last="Jurkowski">B. Jurkowski</name>
<affiliation wicri:level="1"><country xml:lang="fr">Pologne</country>
<wicri:regionArea>Division of Plastic and Rubber Processing, Institute of Material Technology, Poznan University of Technology, Piotrowo 3, 61‐138 Poznan</wicri:regionArea>
<wicri:noRegion>61‐138 Poznan</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><country wicri:rule="url">Pologne</country>
</affiliation>
<affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">Pologne</country>
<wicri:regionArea>Correspondence address: Division of Plastic and Rubber Processing, Institute of Material Technology, Poznan University of Technology, Piotrowo 3, 61‐138 Poznan</wicri:regionArea>
<wicri:noRegion>61‐138 Poznan</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Krivoguz, Y M" sort="Krivoguz, Y M" uniqKey="Krivoguz Y" first="Y. M." last="Krivoguz">Y. M. Krivoguz</name>
<affiliation wicri:level="1"><country xml:lang="fr">Biélorussie</country>
<wicri:regionArea>V. A. Belyi Metal‐Polymer Research Institute, National Academy of Sciences, 32a Kirov Street, Gomel, 246652</wicri:regionArea>
<wicri:noRegion>246652</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Olkhov, Y A" sort="Olkhov, Y A" uniqKey="Olkhov Y" first="Y. A." last="Olkhov">Y. A. Olkhov</name>
<affiliation wicri:level="1"><country xml:lang="fr">Russie</country>
<wicri:regionArea>Institute for the Problems of Chemical Physics of Russia Academy of Sciences, 142432 Chernogolovka, Moscow Region</wicri:regionArea>
<wicri:noRegion>Moscow Region</wicri:noRegion>
</affiliation>
</author>
</analytic>
<monogr></monogr>
<series><title level="j" type="main">Journal of Applied Polymer Science</title>
<title level="j" type="alt">JOURNAL OF APPLIED POLYMER SCIENCE</title>
<idno type="ISSN">0021-8995</idno>
<idno type="eISSN">1097-4628</idno>
<imprint><biblScope unit="vol">81</biblScope>
<biblScope unit="issue">14</biblScope>
<biblScope unit="page" from="3439">3439</biblScope>
<biblScope unit="page" to="3448">3448</biblScope>
<biblScope unit="page-count">10</biblScope>
<publisher>John Wiley & Sons, Inc.</publisher>
<pubPlace>New York</pubPlace>
<date type="published" when="2001-09-29">2001-09-29</date>
</imprint>
<idno type="ISSN">0021-8995</idno>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><idno type="ISSN">0021-8995</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Appl</term>
<term>Appl polym</term>
<term>Classical stabilizers</term>
<term>Crosslinking</term>
<term>Dynamic mixer</term>
<term>Extrusion</term>
<term>Free radicals</term>
<term>Gaylord</term>
<term>Itaconic acid</term>
<term>Jurkowski</term>
<term>Ldpe</term>
<term>Macromolecule</term>
<term>Molecular weight characteristics</term>
<term>Monomer</term>
<term>Olkhov</term>
<term>Peroxide</term>
<term>Peroxide concentrations</term>
<term>Peroxide initiator</term>
<term>Pesetskii</term>
<term>Polym</term>
<term>Polymer</term>
<term>Reactive</term>
<term>Reactive extrusion</term>
<term>Solubility</term>
<term>Solubility parameters</term>
<term>Stabilizer</term>
<term>Thermostatic chamber</term>
<term>Topological</term>
<term>Topological structure</term>
<term>Uniblock</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Static and dynamic mixers set on the Brabender plastograph were used to investigate the grafting of itaconic acid (IA) onto low‐density polyethylene (LDPE) by the reactive extrusion. The initiators of free‐radical reactions were monoperoxide 2,5‐dimethyl‐2‐hydroxy‐5‐tert‐butylperoxy‐3‐hexyne and diperoxide 2,5‐dimethyl‐2,5‐di(tert‐butyl peroxy)‐hexane. The reaction mix contained stabilizers of phenolic type as follows: 2,6‐ditert‐butyl‐4‐methyl phenol; ester of 3,5‐ditert‐butyl‐4‐hydroxyphenyl‐propanoic acid and pentaerythritol; 4‐alkoxy‐2‐hydroxy‐benzophenone; and 1,4‐dihydroxybenzene. The effect of stabilizers, which follow the radical mechanism on the grafting of IA and on the crosslinking, depends on their solubility in the polymer and the monomer. The stabilizers (e.g., 1,4‐dihydroxybenzene) with increased affinity toward the monomer reduce the grafting yield and inhibit crosslinking. At 0.3–0.5 wt % of the stabilizer insoluble in the monomer, the grafting yield can be increased, while inhibiting the LDPE‐g‐IA crosslinking, irrespective of the peroxide used. Hence, classical stabilizers can initiate grafting reactions at raised concentrations, temperatures, and application of the shearing stresses. They also help to obtain a high‐grafting yield and a reduced crosslinking degree. A stabilizer, having a close affinity toward LDPE, influences the LDPE‐g‐IA structure. The stabilizer content of 0.5 wt % transforms the topological structure of LDPE‐g‐IA into uniblock. Its molecular weight distribution (MWD) may be narrow (−Mn/−Mw < 2) or broad (−Mn/−Mw > 2), depending on the concentration of the initiator used. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 3439–3448, 2001</div>
</front>
</TEI>
<affiliations><list><country><li>Biélorussie</li>
<li>Pologne</li>
<li>Russie</li>
</country>
</list>
<tree><country name="Biélorussie"><noRegion><name sortKey="Pesetskii, S S" sort="Pesetskii, S S" uniqKey="Pesetskii S" first="S. S." last="Pesetskii">S. S. Pesetskii</name>
</noRegion>
<name sortKey="Krivoguz, Y M" sort="Krivoguz, Y M" uniqKey="Krivoguz Y" first="Y. M." last="Krivoguz">Y. M. Krivoguz</name>
</country>
<country name="Pologne"><noRegion><name sortKey="Jurkowski, B" sort="Jurkowski, B" uniqKey="Jurkowski B" first="B." last="Jurkowski">B. Jurkowski</name>
</noRegion>
<name sortKey="Jurkowski, B" sort="Jurkowski, B" uniqKey="Jurkowski B" first="B." last="Jurkowski">B. Jurkowski</name>
<name sortKey="Jurkowski, B" sort="Jurkowski, B" uniqKey="Jurkowski B" first="B." last="Jurkowski">B. Jurkowski</name>
</country>
<country name="Russie"><noRegion><name sortKey="Olkhov, Y A" sort="Olkhov, Y A" uniqKey="Olkhov Y" first="Y. A." last="Olkhov">Y. A. Olkhov</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/InforLorV4/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 009285 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 009285 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Wicri/Lorraine |area= InforLorV4 |flux= Main |étape= Exploration |type= RBID |clé= ISTEX:BF154DE144ED8C4B31A29091DE55F8905F620F12 |texte= Solubility of additives: Grafting of itaconic acid onto LDPE by reactive extrusion. II. Effect of stabilizers }}
This area was generated with Dilib version V0.6.33. |