Anionic Ring-Opening Copolymerization of L-Lactide with a Five-Membered Cyclic Carbonate Having a Glucopyranoside Structure
The anionic ring-opening copolymerization of L-lactide (LL) with a five-membered cyclic carbonate having the glucopyranoside structure, methyl 4,6-O-benzilidene-2,3-O-carbonyl-α-D-glucopyranoside (MBCG), was carried out using potassium tert-butoxide (t-BuOK) as the initiator and tetrahydrofuran (THF...
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| Veröffentlicht in: | Polymer journal 2009-01, Vol.41 (9), p.702-708 |
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| creator | HABA, Osamu FURUICHI, Nanako AKASHIKA, Yosuke |
| description | The anionic ring-opening copolymerization of L-lactide (LL) with a five-membered cyclic carbonate having the glucopyranoside structure, methyl 4,6-O-benzilidene-2,3-O-carbonyl-α-D-glucopyranoside (MBCG), was carried out using potassium tert-butoxide (t-BuOK) as the initiator and tetrahydrofuran (THF) as the solvent at 30°C for 12h. The mole fractions of LL in the copolymer (fLL ) of all copolymers were nearly equal to the corresponding mole fraction of LL in the feed (FLL ). Deprotection of the copolymer was performed using trifluoroacetic acid in dichloromethane. 1 H NMR spectra of the resulting product indicated that deprotection was completely achieved due to the absence of the aromatic proton signals. |
| doi_str_mv | 10.1295/polymj.PJ2008327 |
| format | Article |
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The mole fractions of LL in the copolymer (fLL ) of all copolymers were nearly equal to the corresponding mole fraction of LL in the feed (FLL ). 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The mole fractions of LL in the copolymer (fLL ) of all copolymers were nearly equal to the corresponding mole fraction of LL in the feed (FLL ). 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FURUICHI, Nanako ; AKASHIKA, Yosuke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c376t-fbefac59ddee2cf1f48e44b3e737c8001ec3bc51c91d83eae1f1e91454aecbde3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Carbonates</topic><topic>Copolymerization</topic><topic>Copolymers</topic><topic>Exact sciences and technology</topic><topic>Initiators</topic><topic>Moles</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>Solvents</topic><topic>Spectra</topic><topic>Tetrahydrofuran</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HABA, Osamu</creatorcontrib><creatorcontrib>FURUICHI, Nanako</creatorcontrib><creatorcontrib>AKASHIKA, Yosuke</creatorcontrib><collection>Pascal-Francis</collection><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 Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Applied & Life Sciences</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Polymer journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HABA, Osamu</au><au>FURUICHI, Nanako</au><au>AKASHIKA, Yosuke</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anionic Ring-Opening Copolymerization of L-Lactide with a Five-Membered Cyclic Carbonate Having a Glucopyranoside Structure</atitle><jtitle>Polymer journal</jtitle><date>2009-01-01</date><risdate>2009</risdate><volume>41</volume><issue>9</issue><spage>702</spage><epage>708</epage><pages>702-708</pages><issn>0032-3896</issn><eissn>1349-0540</eissn><coden>POLJB8</coden><abstract>The anionic ring-opening copolymerization of L-lactide (LL) with a five-membered cyclic carbonate having the glucopyranoside structure, methyl 4,6-O-benzilidene-2,3-O-carbonyl-α-D-glucopyranoside (MBCG), was carried out using potassium tert-butoxide (t-BuOK) as the initiator and tetrahydrofuran (THF) as the solvent at 30°C for 12h. The mole fractions of LL in the copolymer (fLL ) of all copolymers were nearly equal to the corresponding mole fraction of LL in the feed (FLL ). Deprotection of the copolymer was performed using trifluoroacetic acid in dichloromethane. 1 H NMR spectra of the resulting product indicated that deprotection was completely achieved due to the absence of the aromatic proton signals.</abstract><cop>Avenel, NJ</cop><pub>Nature Publishing Group</pub><doi>10.1295/polymj.PJ2008327</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection |
| subjects | Applied sciences Carbonates Copolymerization Copolymers Exact sciences and technology Initiators Moles Organic polymers Physicochemistry of polymers Preparation, kinetics, thermodynamics, mechanism and catalysts Solvents Spectra Tetrahydrofuran |
| title | Anionic Ring-Opening Copolymerization of L-Lactide with a Five-Membered Cyclic Carbonate Having a Glucopyranoside Structure |
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