Synthesis of Biodegradable Diblock Copolymers of Glycolide and Poly(oxyethylene) Using a Montmorillonite Clay as Catalyst
Biodegradable diblock copolymers were prepared from glycolide and poly(oxyethylene) of M^sub n^=600 (POE 600), 1500 (POE 1500) and 2000 (POE 2000). The copolymerization of glycolide and POE was induced in heterogeneous phase by "Maghnite-H^sup +^" under suitable conditions. Maghnite-H^sup...
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| Veröffentlicht in: | Journal of polymer research 2005-10, Vol.12 (5), p.367-371 |
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| container_title | Journal of polymer research |
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| creator | Amine, Harrane Karima, Oussadi El Amine, Belaouedj Mohamed Meghabar, Rachid Belbachir, Mohamed |
| description | Biodegradable diblock copolymers were prepared from glycolide and poly(oxyethylene) of M^sub n^=600 (POE 600), 1500 (POE 1500) and 2000 (POE 2000). The copolymerization of glycolide and POE was induced in heterogeneous phase by "Maghnite-H^sup +^" under suitable conditions. Maghnite-H^sup +^ is a montmorillonite sheet silicate clay exchanged with protons. Various techniques, including ^sup 1^H NMR, ^sup 13^C NMR, IR, DSC and Ubbelohde viscometer were used to elucidate structural characteristics and thermal properties of the resulting copolymers. The effect of the [glycolide]/[POE] molar ratio on the rate of copolymerization and on intrinsic viscosity of the resulting copolymers was studied. Data showed that the rate of copolymerization and intrinsic viscosity of copolymers increase with increasing [glycolide]/[POE] molar ratio. [PUBLICATION ABSTRACT] |
| doi_str_mv | 10.1007/s10965-005-0436-2 |
| format | Article |
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The copolymerization of glycolide and POE was induced in heterogeneous phase by "Maghnite-H^sup +^" under suitable conditions. Maghnite-H^sup +^ is a montmorillonite sheet silicate clay exchanged with protons. Various techniques, including ^sup 1^H NMR, ^sup 13^C NMR, IR, DSC and Ubbelohde viscometer were used to elucidate structural characteristics and thermal properties of the resulting copolymers. The effect of the [glycolide]/[POE] molar ratio on the rate of copolymerization and on intrinsic viscosity of the resulting copolymers was studied. Data showed that the rate of copolymerization and intrinsic viscosity of copolymers increase with increasing [glycolide]/[POE] molar ratio. 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The copolymerization of glycolide and POE was induced in heterogeneous phase by "Maghnite-H^sup +^" under suitable conditions. Maghnite-H^sup +^ is a montmorillonite sheet silicate clay exchanged with protons. Various techniques, including ^sup 1^H NMR, ^sup 13^C NMR, IR, DSC and Ubbelohde viscometer were used to elucidate structural characteristics and thermal properties of the resulting copolymers. The effect of the [glycolide]/[POE] molar ratio on the rate of copolymerization and on intrinsic viscosity of the resulting copolymers was studied. Data showed that the rate of copolymerization and intrinsic viscosity of copolymers increase with increasing [glycolide]/[POE] molar ratio. [PUBLICATION ABSTRACT]</description><subject>Biodegradability</subject><subject>Clay (material)</subject><subject>Copolymerization</subject><subject>Copolymers</subject><subject>Montmorillonite</subject><subject>Nuclear magnetic resonance</subject><subject>Silicates</subject><subject>Viscosity</subject><issn>1022-9760</issn><issn>1572-8935</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkU1P3DAQhqMKpPLRH9Cb1UvbQ8CO7dg-tqF8SCCQWs7WrD0BU2-8tbNS_e8JLCcOoxnpfTQazdM0nxk9YZSq08Ko6WVL6VKC9233oTlgUnWtNlzuLTPtutaonn5sDkt5Wjipen3Q1N91mh-xhELSSH6G5PEhg4dVRHIWVjG5v2RImxTrGvMrcxGrSzF4JDB5crck39L_ivNjjTjhd3JfwvRAgNykaV6nHGJMU5iRDBEqgUIGmCHWMh83-yPEgp_e-lFzf_7rz3DZXt9eXA0_rlvHqZjbnoreaK3AC9l5ZrhzHIELaaQRkgI6z6lbCc2M8x034EetxNg5gJEhV_yo-brbu8np3xbLbNehOIwRJkzbYg0zRirO-oX88o58Sts8LcdZrblWkjKxQGwHuZxKyTjaTQ5ryNUyal9U2J0Ku7zYvqiwHX8GCVJ9Rw</recordid><startdate>20051001</startdate><enddate>20051001</enddate><creator>Amine, Harrane</creator><creator>Karima, Oussadi</creator><creator>El Amine, Belaouedj Mohamed</creator><creator>Meghabar, Rachid</creator><creator>Belbachir, Mohamed</creator><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20051001</creationdate><title>Synthesis of Biodegradable Diblock Copolymers of Glycolide and Poly(oxyethylene) Using a Montmorillonite Clay as Catalyst</title><author>Amine, Harrane ; Karima, Oussadi ; El Amine, Belaouedj Mohamed ; Meghabar, Rachid ; Belbachir, Mohamed</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c304t-60469887ad452d193cc3ea345959450aecd30cb4819cd239adf874f2caaf1e373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Biodegradability</topic><topic>Clay (material)</topic><topic>Copolymerization</topic><topic>Copolymers</topic><topic>Montmorillonite</topic><topic>Nuclear magnetic resonance</topic><topic>Silicates</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Amine, Harrane</creatorcontrib><creatorcontrib>Karima, Oussadi</creatorcontrib><creatorcontrib>El Amine, Belaouedj Mohamed</creatorcontrib><creatorcontrib>Meghabar, Rachid</creatorcontrib><creatorcontrib>Belbachir, Mohamed</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of polymer research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Amine, Harrane</au><au>Karima, Oussadi</au><au>El Amine, Belaouedj Mohamed</au><au>Meghabar, Rachid</au><au>Belbachir, Mohamed</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of Biodegradable Diblock Copolymers of Glycolide and Poly(oxyethylene) Using a Montmorillonite Clay as Catalyst</atitle><jtitle>Journal of polymer research</jtitle><date>2005-10-01</date><risdate>2005</risdate><volume>12</volume><issue>5</issue><spage>367</spage><epage>371</epage><pages>367-371</pages><issn>1022-9760</issn><eissn>1572-8935</eissn><abstract>Biodegradable diblock copolymers were prepared from glycolide and poly(oxyethylene) of M^sub n^=600 (POE 600), 1500 (POE 1500) and 2000 (POE 2000). The copolymerization of glycolide and POE was induced in heterogeneous phase by "Maghnite-H^sup +^" under suitable conditions. Maghnite-H^sup +^ is a montmorillonite sheet silicate clay exchanged with protons. Various techniques, including ^sup 1^H NMR, ^sup 13^C NMR, IR, DSC and Ubbelohde viscometer were used to elucidate structural characteristics and thermal properties of the resulting copolymers. The effect of the [glycolide]/[POE] molar ratio on the rate of copolymerization and on intrinsic viscosity of the resulting copolymers was studied. Data showed that the rate of copolymerization and intrinsic viscosity of copolymers increase with increasing [glycolide]/[POE] molar ratio. [PUBLICATION ABSTRACT]</abstract><cop>Dordrecht</cop><pub>Springer Nature B.V</pub><doi>10.1007/s10965-005-0436-2</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of polymer research, 2005-10, Vol.12 (5), p.367-371 |
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| subjects | Biodegradability Clay (material) Copolymerization Copolymers Montmorillonite Nuclear magnetic resonance Silicates Viscosity |
| title | Synthesis of Biodegradable Diblock Copolymers of Glycolide and Poly(oxyethylene) Using a Montmorillonite Clay as Catalyst |
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