Synthesis of hydrosoluble polymers of oxazoline using Maghnite‐H as catalyst
Identifieur interne : 000E21 ( Istex/Corpus ); précédent : 000E20; suivant : 000E22Synthesis of hydrosoluble polymers of oxazoline using Maghnite‐H as catalyst
Auteurs : Ahmed Yahiaoui ; Aïcha Hachemaoui ; Mohammed BelbachirSource :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2007-05-05.
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Abstract
2,4,4‐Triméthyl‐2‐oxazoline was polymerized, using an acid exchanged montmorillonite clay as catalyst, with the aim to study the influence of the methyl group size in the initiation and propagation processes. The effect of amount of catalyst temperature, time, and solvent on the polymerization yield and viscosity of the polymers were studied. The polymers obtained were characterized by spectrometric methods and their average molecular weights were determined by viscosimetrie and GPC data. The polymers presented similar spectrometric results and narrow molecular weight distributions. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. The polymerization results showed that the methyl groups present in the monomer affected the initiation process. Mechanism studies showed that polymerization of TMOX involves nucleophilic ring opening by attack of nitrogen to cleave the CH2O bond of the oxazoline ring. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1792–1800, 2007
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DOI: 10.1002/app.25829
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ISTEX:27597E25048BA4B35D515097ABB93ACF9E1C8188Le document en format XML
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The effect of amount of catalyst temperature, time, and solvent on the polymerization yield and viscosity of the polymers were studied. The polymers obtained were characterized by spectrometric methods and their average molecular weights were determined by viscosimetrie and GPC data. The polymers presented similar spectrometric results and narrow molecular weight distributions. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. The polymerization results showed that the methyl groups present in the monomer affected the initiation process. Mechanism studies showed that polymerization of TMOX involves nucleophilic ring opening by attack of nitrogen to cleave the CH2O bond of the oxazoline ring. © 2007 Wiley Periodicals, Inc. 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The effect of amount of catalyst temperature, time, and solvent on the polymerization yield and viscosity of the polymers were studied. The polymers obtained were characterized by spectrometric methods and their average molecular weights were determined by viscosimetrie and GPC data. The polymers presented similar spectrometric results and narrow molecular weight distributions. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. The polymerization results showed that the methyl groups present in the monomer affected the initiation process. Mechanism studies showed that polymerization of TMOX involves nucleophilic ring opening by attack of nitrogen to cleave the CH2O bond of the oxazoline ring. © 2007 Wiley Periodicals, Inc. 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The effect of amount of catalyst temperature, time, and solvent on the polymerization yield and viscosity of the polymers were studied. The polymers obtained were characterized by spectrometric methods and their average molecular weights were determined by viscosimetrie and GPC data. The polymers presented similar spectrometric results and narrow molecular weight distributions. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. The polymerization results showed that the methyl groups present in the monomer affected the initiation process. Mechanism studies showed that polymerization of TMOX involves nucleophilic ring opening by attack of nitrogen to cleave the CH<sub>2</sub>O bond of the oxazoline ring. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1792–1800, 2007</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Synthesis of hydrosoluble polymers of oxazoline using Maghnite‐H as catalyst</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Synthesis of Hydrosoluble Polymers of Oxazoline</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Synthesis of hydrosoluble polymers of oxazoline using Maghnite‐H as catalyst</title></titleInfo><name type="personal"><namePart type="given">Ahmed</namePart><namePart type="family">Yahiaoui</namePart><affiliation>Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran, BP 1524 El'Menouer Oran 31000, Algérie</affiliation><affiliation>Centre Universitaire Mustapha Stambouli, Institut des Sciences et de Technologie, BP 763 Mascara 29000, Algérie</affiliation><affiliation>Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran, BP 1524 El'Menouer Oran 31000, Algérie===</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Aïcha</namePart><namePart type="family">Hachemaoui</namePart><affiliation>Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran, BP 1524 El'Menouer Oran 31000, Algérie</affiliation><affiliation>Centre Universitaire Mustapha Stambouli, Institut des Sciences et de Technologie, BP 763 Mascara 29000, Algérie</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Mohammed</namePart><namePart type="family">Belbachir</namePart><affiliation>Laboratoire de Chimie des Polymères, Département de Chimie, Faculté des Sciences, Université d'Oran, BP 1524 El'Menouer Oran 31000, Algérie</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><place><placeTerm type="text">Hoboken</placeTerm></place><dateIssued encoding="w3cdtf">2007-05-05</dateIssued><dateCaptured encoding="w3cdtf">2006-03-12</dateCaptured><dateValid encoding="w3cdtf">2006-11-20</dateValid><copyrightDate encoding="w3cdtf">2007</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">14</extent><extent unit="tables">3</extent><extent unit="references">37</extent><extent unit="words">4730</extent></physicalDescription><abstract lang="en">2,4,4‐Triméthyl‐2‐oxazoline was polymerized, using an acid exchanged montmorillonite clay as catalyst, with the aim to study the influence of the methyl group size in the initiation and propagation processes. The effect of amount of catalyst temperature, time, and solvent on the polymerization yield and viscosity of the polymers were studied. The polymers obtained were characterized by spectrometric methods and their average molecular weights were determined by viscosimetrie and GPC data. The polymers presented similar spectrometric results and narrow molecular weight distributions. The kinetics indicated that the polymerization rate is first order with respect to monomer concentration. The polymerization results showed that the methyl groups present in the monomer affected the initiation process. Mechanism studies showed that polymerization of TMOX involves nucleophilic ring opening by attack of nitrogen to cleave the CH2O bond of the oxazoline ring. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1792–1800, 2007</abstract><note type="funding">National Agency for Development</note><note type="funding">Research of Algeria</note><subject lang="en"><genre>keywords</genre><topic>montmorillonite</topic><topic>ecocatalyst</topic><topic>2,4,4‐triméthyl‐2‐oxazoline</topic><topic>ring opening polymerization</topic><topic>living polymerization</topic></subject><relatedItem type="host"><titleInfo><title>Journal of Applied Polymer Science</title></titleInfo><titleInfo type="abbreviated"><title>J. Appl. Polym. Sci.</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0021-8995</identifier><identifier type="eISSN">1097-4628</identifier><identifier type="DOI">10.1002/(ISSN)1097-4628</identifier><identifier type="PublisherID">APP</identifier><part><date>2007</date><detail type="volume"><caption>vol.</caption><number>104</number></detail><detail type="issue"><caption>no.</caption><number>3</number></detail><extent unit="pages"><start>1792</start><end>1800</end><total>9</total></extent></part></relatedItem><identifier type="istex">27597E25048BA4B35D515097ABB93ACF9E1C8188</identifier><identifier type="DOI">10.1002/app.25829</identifier><identifier type="ArticleID">APP25829</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright © 2007 Wiley Periodicals, Inc.</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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