Ring-opening polymerization of ϵ-caprolactone initiated by rare earth complex catalysts

The polymerization of caprolactone (ϵ‐CL) was initiated by yttrium triisopropoxide {Y(OPir)3}, bimetallic isopropoxide of yttrium and aluminum {Y[Al(OPis)4]3}, yttrium and tin(II) {Y[Sn(OPir)3]3}, and tin(II) and yttrium {Sn[Y(OPir)4]2}, respectively. The polymerization was carried out through coord...

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Veröffentlicht in:	Journal of applied polymer science 1997-05, Vol.64 (7), p.1295-1299
Hauptverfasser:	Deng, Xianmo, Zhu, Zhixue, Xiong, Chengdong, Zhang, Lianlai
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences bimetal alkoxide Exact sciences and technology Organic polymers Physicochemistry of polymers Polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts rare earth catalysts ring-opening polymerization ϵ-caprolactone
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description	The polymerization of caprolactone (ϵ‐CL) was initiated by yttrium triisopropoxide {Y(OPir)3}, bimetallic isopropoxide of yttrium and aluminum {Y[Al(OPis)4]3}, yttrium and tin(II) {Y[Sn(OPir)3]3}, and tin(II) and yttrium {Sn[Y(OPir)4]2}, respectively. The polymerization was carried out through coordinative insertion of a monomer into the free metal‐oxygen bond. The molecular weight and yield of poly(ϵ‐caprolactone) (PCL) were affected drastically by the mol % of the initiator to the monomer (Co/Mo). The results showed that Y(OPir)3 and Sn[Y(OPir)4]2 were more effective than were {Y[Al(OPir)4]3} and {Y[Sn(OPir)3]3} for the polymerization of ϵ‐CL. When polymerization was conducted at 5°C using Y(OPir)3 as the initiator or at 10°C using Sn[Y(OPir)4]4 as the initiator, polymers with a molecular weight of 45.9 × 103 or 54.0 × 103 and high yield resulted in 30 or 5 min, respectively. The polymer was characterized by FTIR, H‐NMR, and GPC. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1295–1299, 1997
doi_str_mv	10.1002/(SICI)1097-4628(19970516)64:7<1295::AID-APP8>3.0.CO;2-E
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The polymerization was carried out through coordinative insertion of a monomer into the free metal‐oxygen bond. The molecular weight and yield of poly(ϵ‐caprolactone) (PCL) were affected drastically by the mol % of the initiator to the monomer (Co/Mo). The results showed that Y(OPir)3 and Sn[Y(OPir)4]2 were more effective than were {Y[Al(OPir)4]3} and {Y[Sn(OPir)3]3} for the polymerization of ϵ‐CL. When polymerization was conducted at 5°C using Y(OPir)3 as the initiator or at 10°C using Sn[Y(OPir)4]4 as the initiator, polymers with a molecular weight of 45.9 × 103 or 54.0 × 103 and high yield resulted in 30 or 5 min, respectively. The polymer was characterized by FTIR, H‐NMR, and GPC. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1295–1299, 1997</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/(SICI)1097-4628(19970516)64:7<1295::AID-APP8>3.0.CO;2-E</identifier><identifier>CODEN: JAPNAB</identifier><language>eng</language><publisher>New York: John Wiley & Sons, Inc</publisher><subject>Applied sciences ; bimetal alkoxide ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Polymerization ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; rare earth catalysts ; ring-opening polymerization ; ϵ-caprolactone</subject><ispartof>Journal of applied polymer science, 1997-05, Vol.64 (7), p.1295-1299</ispartof><rights>Copyright © 1997 John Wiley & Sons, Inc.</rights><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F%28SICI%291097-4628%2819970516%2964%3A7%3C1295%3A%3AAID-APP8%3E3.0.CO%3B2-E$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F%28SICI%291097-4628%2819970516%2964%3A7%3C1295%3A%3AAID-APP8%3E3.0.CO%3B2-E$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2629568$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Deng, Xianmo</creatorcontrib><creatorcontrib>Zhu, Zhixue</creatorcontrib><creatorcontrib>Xiong, Chengdong</creatorcontrib><creatorcontrib>Zhang, Lianlai</creatorcontrib><title>Ring-opening polymerization of ϵ-caprolactone initiated by rare earth complex catalysts</title><title>Journal of applied polymer science</title><addtitle>J. Appl. Polym. Sci</addtitle><description>The polymerization of caprolactone (ϵ‐CL) was initiated by yttrium triisopropoxide {Y(OPir)3}, bimetallic isopropoxide of yttrium and aluminum {Y[Al(OPis)4]3}, yttrium and tin(II) {Y[Sn(OPir)3]3}, and tin(II) and yttrium {Sn[Y(OPir)4]2}, respectively. The polymerization was carried out through coordinative insertion of a monomer into the free metal‐oxygen bond. The molecular weight and yield of poly(ϵ‐caprolactone) (PCL) were affected drastically by the mol % of the initiator to the monomer (Co/Mo). The results showed that Y(OPir)3 and Sn[Y(OPir)4]2 were more effective than were {Y[Al(OPir)4]3} and {Y[Sn(OPir)3]3} for the polymerization of ϵ‐CL. When polymerization was conducted at 5°C using Y(OPir)3 as the initiator or at 10°C using Sn[Y(OPir)4]4 as the initiator, polymers with a molecular weight of 45.9 × 103 or 54.0 × 103 and high yield resulted in 30 or 5 min, respectively. The polymer was characterized by FTIR, H‐NMR, and GPC. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1295–1299, 1997</description><subject>Applied sciences</subject><subject>bimetal alkoxide</subject><subject>Exact sciences and technology</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymerization</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>rare earth catalysts</subject><subject>ring-opening polymerization</subject><subject>ϵ-caprolactone</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNo90N1u0zAUwPEIgUQZvIMvuNguXOw4_ioIVLKurVSt40vj7ujEdYchTSIn0hbei-fglUgo9OrI8vFf1i9J3nE25Yylr84_rfP1BWdW00yl5pxbq5nk6kJlM_2Gp1bOZvP1JZ3f3Ji3Ysqm-fZ1ShePksnpzeNkMpQ4NdbKp8mztv3OGOeSqUny9WOo7mjd-GqYpKnL_uBj-IldqCtS78nvX9RhE-sSXVdXnoQqdAE7vyNFTyJGTzzG7htx9aEp_QNx2GHZt137PHmyx7L1L_7Ns-TL1eJzvqKb7XKdzzf0Tghl6J47LxkKo7jLmEWljVaCmZ1E5qXSSu4KbZQWFoXlSkij0RVFIRRmiFkhzpKXx26DrcNyH7FyoYUmhgPGHlI1ACkzrN0e1-5D6fvTNWcwIsNoDKMXjF7w3xhUBhpGYxiIYSQGAQzyLaSw-HseyvRYDm3nH05ljD9g-LaWcHu9hOXV5sPq_XUOK_EHuxqHVw</recordid><startdate>19970516</startdate><enddate>19970516</enddate><creator>Deng, Xianmo</creator><creator>Zhu, Zhixue</creator><creator>Xiong, Chengdong</creator><creator>Zhang, Lianlai</creator><general>John Wiley & Sons, Inc</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope></search><sort><creationdate>19970516</creationdate><title>Ring-opening polymerization of ϵ-caprolactone initiated by rare earth complex catalysts</title><author>Deng, Xianmo ; Zhu, Zhixue ; Xiong, Chengdong ; Zhang, Lianlai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g3368-f1ce50a3861c409a67876308d5a0e56765db786739a39163587acbbb36a4aa4b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Applied sciences</topic><topic>bimetal alkoxide</topic><topic>Exact sciences and technology</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymerization</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>rare earth catalysts</topic><topic>ring-opening polymerization</topic><topic>ϵ-caprolactone</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Deng, Xianmo</creatorcontrib><creatorcontrib>Zhu, Zhixue</creatorcontrib><creatorcontrib>Xiong, Chengdong</creatorcontrib><creatorcontrib>Zhang, Lianlai</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Deng, Xianmo</au><au>Zhu, Zhixue</au><au>Xiong, Chengdong</au><au>Zhang, Lianlai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ring-opening polymerization of ϵ-caprolactone initiated by rare earth complex catalysts</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>1997-05-16</date><risdate>1997</risdate><volume>64</volume><issue>7</issue><spage>1295</spage><epage>1299</epage><pages>1295-1299</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>The polymerization of caprolactone (ϵ‐CL) was initiated by yttrium triisopropoxide {Y(OPir)3}, bimetallic isopropoxide of yttrium and aluminum {Y[Al(OPis)4]3}, yttrium and tin(II) {Y[Sn(OPir)3]3}, and tin(II) and yttrium {Sn[Y(OPir)4]2}, respectively. The polymerization was carried out through coordinative insertion of a monomer into the free metal‐oxygen bond. The molecular weight and yield of poly(ϵ‐caprolactone) (PCL) were affected drastically by the mol % of the initiator to the monomer (Co/Mo). The results showed that Y(OPir)3 and Sn[Y(OPir)4]2 were more effective than were {Y[Al(OPir)4]3} and {Y[Sn(OPir)3]3} for the polymerization of ϵ‐CL. When polymerization was conducted at 5°C using Y(OPir)3 as the initiator or at 10°C using Sn[Y(OPir)4]4 as the initiator, polymers with a molecular weight of 45.9 × 103 or 54.0 × 103 and high yield resulted in 30 or 5 min, respectively. The polymer was characterized by FTIR, H‐NMR, and GPC. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1295–1299, 1997</abstract><cop>New York</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/(SICI)1097-4628(19970516)64:7<1295::AID-APP8>3.0.CO;2-E</doi><tpages>5</tpages></addata></record>
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subjects	Applied sciences bimetal alkoxide Exact sciences and technology Organic polymers Physicochemistry of polymers Polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts rare earth catalysts ring-opening polymerization ϵ-caprolactone
title	Ring-opening polymerization of ϵ-caprolactone initiated by rare earth complex catalysts
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