Enzymatic synthesis and properties of novel biodegradable and biobased thermoplastic elastomers
Novel biodegradable and biobased thermoplastic elastomers, poly[dodecanolide-12-hydroxystearate (12HS)], poly(pentadecanolide-12HS) and poly(hexadecanolide-12HS) with M ws of 140,000–290,000 g mol −1 were prepared by the enzymatic copolymerization of a macrolide as the hard segment and methyl 12HS a...
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| Veröffentlicht in: | Polymer degradation and stability 2011-12, Vol.96 (12), p.2071-2079 |
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| container_title | Polymer degradation and stability |
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| creator | Kobayashi, Takuma Matsumura, Shuichi |
| description | Novel biodegradable and biobased thermoplastic elastomers, poly[dodecanolide-12-hydroxystearate (12HS)], poly(pentadecanolide-12HS) and poly(hexadecanolide-12HS) with
M
ws of 140,000–290,000
g
mol
−1 were prepared by the enzymatic copolymerization of a macrolide as the hard segment and methyl 12HS as the soft segment. Their thermal properties, such as
T
m and
T
c, were measured by DSC. Physicochemical and mechanical properties, such as crystallinity, were also measured. The polymer structures were analyzed with respect to the sequence of the two monomers by
1H NMR spectroscopy using an europium shift reagent. The randomness of the two monomer units in the polymer chain increased with the polymerization time. Both Young’s modulus and tensile strength decreased with increasing 12HS content in the copolymer. In contrast, elongation at break increased with increasing 12HS content, thus demonstrating the copolymers’ elastomeric properties. These copolymers showed biodegradabilities by activated sludge, which also increased with increasing 12HS content. |
| doi_str_mv | 10.1016/j.polymdegradstab.2011.10.002 |
| format | Article |
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M
ws of 140,000–290,000
g
mol
−1 were prepared by the enzymatic copolymerization of a macrolide as the hard segment and methyl 12HS as the soft segment. Their thermal properties, such as
T
m and
T
c, were measured by DSC. Physicochemical and mechanical properties, such as crystallinity, were also measured. The polymer structures were analyzed with respect to the sequence of the two monomers by
1H NMR spectroscopy using an europium shift reagent. The randomness of the two monomer units in the polymer chain increased with the polymerization time. Both Young’s modulus and tensile strength decreased with increasing 12HS content in the copolymer. In contrast, elongation at break increased with increasing 12HS content, thus demonstrating the copolymers’ elastomeric properties. These copolymers showed biodegradabilities by activated sludge, which also increased with increasing 12HS content.</description><identifier>ISSN: 0141-3910</identifier><identifier>EISSN: 1873-2321</identifier><identifier>DOI: 10.1016/j.polymdegradstab.2011.10.002</identifier><identifier>CODEN: PDSTDW</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>activated sludge ; Aliphatic polyesters ; Applied sciences ; Biobased polymer ; biodegradability ; Biodegradable polymers ; composite polymers ; crystal structure ; Enzymatic polymerization ; europium ; Exact sciences and technology ; Lipase ; macrolides ; nuclear magnetic resonance spectroscopy ; Organic polymers ; Physicochemistry of polymers ; Polycondensation ; polymerization ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; tensile strength ; thermal properties ; Thermoplastic elastomers ; thermoplastics</subject><ispartof>Polymer degradation and stability, 2011-12, Vol.96 (12), p.2071-2079</ispartof><rights>2011 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c522t-fd42ab72e1e6b8d144a23880c3966f82f708760839cdcc4b4f2235598ebde8903</citedby><cites>FETCH-LOGICAL-c522t-fd42ab72e1e6b8d144a23880c3966f82f708760839cdcc4b4f2235598ebde8903</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.polymdegradstab.2011.10.002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24781603$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Kobayashi, Takuma</creatorcontrib><creatorcontrib>Matsumura, Shuichi</creatorcontrib><title>Enzymatic synthesis and properties of novel biodegradable and biobased thermoplastic elastomers</title><title>Polymer degradation and stability</title><description>Novel biodegradable and biobased thermoplastic elastomers, poly[dodecanolide-12-hydroxystearate (12HS)], poly(pentadecanolide-12HS) and poly(hexadecanolide-12HS) with
M
ws of 140,000–290,000
g
mol
−1 were prepared by the enzymatic copolymerization of a macrolide as the hard segment and methyl 12HS as the soft segment. Their thermal properties, such as
T
m and
T
c, were measured by DSC. Physicochemical and mechanical properties, such as crystallinity, were also measured. The polymer structures were analyzed with respect to the sequence of the two monomers by
1H NMR spectroscopy using an europium shift reagent. The randomness of the two monomer units in the polymer chain increased with the polymerization time. Both Young’s modulus and tensile strength decreased with increasing 12HS content in the copolymer. In contrast, elongation at break increased with increasing 12HS content, thus demonstrating the copolymers’ elastomeric properties. These copolymers showed biodegradabilities by activated sludge, which also increased with increasing 12HS content.</description><subject>activated sludge</subject><subject>Aliphatic polyesters</subject><subject>Applied sciences</subject><subject>Biobased polymer</subject><subject>biodegradability</subject><subject>Biodegradable polymers</subject><subject>composite polymers</subject><subject>crystal structure</subject><subject>Enzymatic polymerization</subject><subject>europium</subject><subject>Exact sciences and technology</subject><subject>Lipase</subject><subject>macrolides</subject><subject>nuclear magnetic resonance spectroscopy</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polycondensation</subject><subject>polymerization</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>tensile strength</subject><subject>thermal properties</subject><subject>Thermoplastic elastomers</subject><subject>thermoplastics</subject><issn>0141-3910</issn><issn>1873-2321</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqNkE1P3DAQhq0KpC6U30AuiFO2_lrHOXBAiNJKSD20nC3HHoNXSRw8AWn76-sQ1AOn-jKS55l3Rg8hF4xuGWXq6347pf4weHjM1uNsuy2njJXellL-iWyYbkTNBWdHZEOZZLVoGf1MThD3tDy5Yxtibsc_h8HO0VV4GOcnwIiVHX015TRBniNglUI1plfoqy6mdZntenijyk9nEXxVJvOQpt7iEgVLTQNk_EKOg-0Rzt7rKXn4dvv75nt9__Pux831fe12nM918JLbruHAQHXaMyktF1pTJ1qlguahobpRVIvWeedkJwPnYrdrNXQedEvFKblcc8vdzy-AsxkiOuh7O0J6QdMqoRUVciGvVtLlhJghmCnHweaDYdQsXs3efPBqFq9Lu3gt8xfvmyw624dsRxfxXwiXjWZlU-HOVy7YZOxjLszDrxKkivpGUMUKcbcSUMS8RsgGXYTRgY8Z3Gx8iv9501-BiqLR</recordid><startdate>20111201</startdate><enddate>20111201</enddate><creator>Kobayashi, Takuma</creator><creator>Matsumura, Shuichi</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20111201</creationdate><title>Enzymatic synthesis and properties of novel biodegradable and biobased thermoplastic elastomers</title><author>Kobayashi, Takuma ; Matsumura, Shuichi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c522t-fd42ab72e1e6b8d144a23880c3966f82f708760839cdcc4b4f2235598ebde8903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>activated sludge</topic><topic>Aliphatic polyesters</topic><topic>Applied sciences</topic><topic>Biobased polymer</topic><topic>biodegradability</topic><topic>Biodegradable polymers</topic><topic>composite polymers</topic><topic>crystal structure</topic><topic>Enzymatic polymerization</topic><topic>europium</topic><topic>Exact sciences and technology</topic><topic>Lipase</topic><topic>macrolides</topic><topic>nuclear magnetic resonance spectroscopy</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polycondensation</topic><topic>polymerization</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>tensile strength</topic><topic>thermal properties</topic><topic>Thermoplastic elastomers</topic><topic>thermoplastics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kobayashi, Takuma</creatorcontrib><creatorcontrib>Matsumura, Shuichi</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Polymer degradation and stability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kobayashi, Takuma</au><au>Matsumura, Shuichi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enzymatic synthesis and properties of novel biodegradable and biobased thermoplastic elastomers</atitle><jtitle>Polymer degradation and stability</jtitle><date>2011-12-01</date><risdate>2011</risdate><volume>96</volume><issue>12</issue><spage>2071</spage><epage>2079</epage><pages>2071-2079</pages><issn>0141-3910</issn><eissn>1873-2321</eissn><coden>PDSTDW</coden><abstract>Novel biodegradable and biobased thermoplastic elastomers, poly[dodecanolide-12-hydroxystearate (12HS)], poly(pentadecanolide-12HS) and poly(hexadecanolide-12HS) with
M
ws of 140,000–290,000
g
mol
−1 were prepared by the enzymatic copolymerization of a macrolide as the hard segment and methyl 12HS as the soft segment. Their thermal properties, such as
T
m and
T
c, were measured by DSC. Physicochemical and mechanical properties, such as crystallinity, were also measured. The polymer structures were analyzed with respect to the sequence of the two monomers by
1H NMR spectroscopy using an europium shift reagent. The randomness of the two monomer units in the polymer chain increased with the polymerization time. Both Young’s modulus and tensile strength decreased with increasing 12HS content in the copolymer. In contrast, elongation at break increased with increasing 12HS content, thus demonstrating the copolymers’ elastomeric properties. These copolymers showed biodegradabilities by activated sludge, which also increased with increasing 12HS content.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.polymdegradstab.2011.10.002</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0141-3910 |
| ispartof | Polymer degradation and stability, 2011-12, Vol.96 (12), p.2071-2079 |
| issn | 0141-3910 1873-2321 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | activated sludge Aliphatic polyesters Applied sciences Biobased polymer biodegradability Biodegradable polymers composite polymers crystal structure Enzymatic polymerization europium Exact sciences and technology Lipase macrolides nuclear magnetic resonance spectroscopy Organic polymers Physicochemistry of polymers Polycondensation polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts tensile strength thermal properties Thermoplastic elastomers thermoplastics |
| title | Enzymatic synthesis and properties of novel biodegradable and biobased thermoplastic elastomers |
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