High Tg poly(ester amide)s by melt polycondensation of monomers from renewable resources; citric acid, D-glucono-d-lactone and amino acids: A DSC study
We present a systematic, thermal study on the synthesis of poly(ester amide)s (PEAs) by the melt condensation of citric acid (CA), D-glucono-δ-lactone (GL) and various amino acids (AAs). The reactions were studied by differential scanning calorimetry (DSC) and it was found that the incorporation of...
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| Veröffentlicht in: | European polymer journal 2017-09, Vol.94, p.11 |
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| creator | de Jongh, Patrick AJM Paul, Prem KC Khoshdel, Ezat Wilson, Paul Kempe, Kristian Haddleton, David M |
| description | We present a systematic, thermal study on the synthesis of poly(ester amide)s (PEAs) by the melt condensation of citric acid (CA), D-glucono-δ-lactone (GL) and various amino acids (AAs). The reactions were studied by differential scanning calorimetry (DSC) and it was found that the incorporation of amino acids into the previously investigated CA/GL system (de Jongh et al., 2017) results in a significant increase of the glass transition temperature (Tgs) of the resulting PEAs as a result of the introduction of amide bonds. AAs with functional side chains (i.e. hydroxyl, thiol, carboxylic acid or amine) resulted in higher Tgs than AAs with hydrophobic, non-reactive side chains, which is attributed to additional crosslinking in the PEAs. The copolymerisation of proline (and two structural analogues), despite having no reactive side chain, yielded PEAs with significantly higher Tgs than any other AA as a result of its cyclic structure. |
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The reactions were studied by differential scanning calorimetry (DSC) and it was found that the incorporation of amino acids into the previously investigated CA/GL system (de Jongh et al., 2017) results in a significant increase of the glass transition temperature (Tgs) of the resulting PEAs as a result of the introduction of amide bonds. AAs with functional side chains (i.e. hydroxyl, thiol, carboxylic acid or amine) resulted in higher Tgs than AAs with hydrophobic, non-reactive side chains, which is attributed to additional crosslinking in the PEAs. The copolymerisation of proline (and two structural analogues), despite having no reactive side chain, yielded PEAs with significantly higher Tgs than any other AA as a result of its cyclic structure.</description><identifier>ISSN: 0014-3057</identifier><identifier>EISSN: 1873-1945</identifier><language>eng</language><publisher>Oxford: Elsevier BV</publisher><subject>Amino acids ; Chains ; Chemical synthesis ; Citric acid ; Copolymerization ; Crosslinking ; Differential scanning calorimetry ; Glass transition temperature ; Monomers ; Peas ; Polyesteramides ; Polyesters ; Proline ; Renewable resources</subject><ispartof>European polymer journal, 2017-09, Vol.94, p.11</ispartof><rights>Copyright Elsevier BV Sep 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids></links><search><creatorcontrib>de Jongh, Patrick AJM</creatorcontrib><creatorcontrib>Paul, Prem KC</creatorcontrib><creatorcontrib>Khoshdel, Ezat</creatorcontrib><creatorcontrib>Wilson, Paul</creatorcontrib><creatorcontrib>Kempe, Kristian</creatorcontrib><creatorcontrib>Haddleton, David M</creatorcontrib><title>High Tg poly(ester amide)s by melt polycondensation of monomers from renewable resources; citric acid, D-glucono-d-lactone and amino acids: A DSC study</title><title>European polymer journal</title><description>We present a systematic, thermal study on the synthesis of poly(ester amide)s (PEAs) by the melt condensation of citric acid (CA), D-glucono-δ-lactone (GL) and various amino acids (AAs). The reactions were studied by differential scanning calorimetry (DSC) and it was found that the incorporation of amino acids into the previously investigated CA/GL system (de Jongh et al., 2017) results in a significant increase of the glass transition temperature (Tgs) of the resulting PEAs as a result of the introduction of amide bonds. AAs with functional side chains (i.e. hydroxyl, thiol, carboxylic acid or amine) resulted in higher Tgs than AAs with hydrophobic, non-reactive side chains, which is attributed to additional crosslinking in the PEAs. The copolymerisation of proline (and two structural analogues), despite having no reactive side chain, yielded PEAs with significantly higher Tgs than any other AA as a result of its cyclic structure.</description><subject>Amino acids</subject><subject>Chains</subject><subject>Chemical synthesis</subject><subject>Citric acid</subject><subject>Copolymerization</subject><subject>Crosslinking</subject><subject>Differential scanning calorimetry</subject><subject>Glass transition temperature</subject><subject>Monomers</subject><subject>Peas</subject><subject>Polyesteramides</subject><subject>Polyesters</subject><subject>Proline</subject><subject>Renewable resources</subject><issn>0014-3057</issn><issn>1873-1945</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqNjs1OwzAQhC0EEuHnHVbiAhKWbJI2KZxQW9Q7vVeuvQmuHG_xOkJ5El6XUPEAnGak-TQzZ6LQTV1Kvahm56JQSleyVLP6UlwxH5RSdTkvC_G98d0HbDs4UhjvkTMmML13-MCwH6HHkE-RpegwssmeIlALPUXqMTG0iXpIGPHL7ANOjmlIFvkFrM_JWzDWu0dYyS4MUwlJJ4OxmSKCie53K9KJ4Wd4hdX7EjgPbrwRF60JjLd_ei3u3tbb5UYeE30O08_dYdqJU7TTi7mu9FOjm_J_1A8zxVlL</recordid><startdate>20170901</startdate><enddate>20170901</enddate><creator>de Jongh, Patrick AJM</creator><creator>Paul, Prem KC</creator><creator>Khoshdel, Ezat</creator><creator>Wilson, Paul</creator><creator>Kempe, Kristian</creator><creator>Haddleton, David M</creator><general>Elsevier BV</general><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20170901</creationdate><title>High Tg poly(ester amide)s by melt polycondensation of monomers from renewable resources; citric acid, D-glucono-d-lactone and amino acids: A DSC study</title><author>de Jongh, Patrick AJM ; Paul, Prem KC ; Khoshdel, Ezat ; Wilson, Paul ; Kempe, Kristian ; Haddleton, David M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_journals_19614128183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Amino acids</topic><topic>Chains</topic><topic>Chemical synthesis</topic><topic>Citric acid</topic><topic>Copolymerization</topic><topic>Crosslinking</topic><topic>Differential scanning calorimetry</topic><topic>Glass transition temperature</topic><topic>Monomers</topic><topic>Peas</topic><topic>Polyesteramides</topic><topic>Polyesters</topic><topic>Proline</topic><topic>Renewable resources</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de Jongh, Patrick AJM</creatorcontrib><creatorcontrib>Paul, Prem KC</creatorcontrib><creatorcontrib>Khoshdel, Ezat</creatorcontrib><creatorcontrib>Wilson, Paul</creatorcontrib><creatorcontrib>Kempe, Kristian</creatorcontrib><creatorcontrib>Haddleton, David M</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>European polymer journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de Jongh, Patrick AJM</au><au>Paul, Prem KC</au><au>Khoshdel, Ezat</au><au>Wilson, Paul</au><au>Kempe, Kristian</au><au>Haddleton, David M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High Tg poly(ester amide)s by melt polycondensation of monomers from renewable resources; citric acid, D-glucono-d-lactone and amino acids: A DSC study</atitle><jtitle>European polymer journal</jtitle><date>2017-09-01</date><risdate>2017</risdate><volume>94</volume><spage>11</spage><pages>11-</pages><issn>0014-3057</issn><eissn>1873-1945</eissn><abstract>We present a systematic, thermal study on the synthesis of poly(ester amide)s (PEAs) by the melt condensation of citric acid (CA), D-glucono-δ-lactone (GL) and various amino acids (AAs). The reactions were studied by differential scanning calorimetry (DSC) and it was found that the incorporation of amino acids into the previously investigated CA/GL system (de Jongh et al., 2017) results in a significant increase of the glass transition temperature (Tgs) of the resulting PEAs as a result of the introduction of amide bonds. AAs with functional side chains (i.e. hydroxyl, thiol, carboxylic acid or amine) resulted in higher Tgs than AAs with hydrophobic, non-reactive side chains, which is attributed to additional crosslinking in the PEAs. The copolymerisation of proline (and two structural analogues), despite having no reactive side chain, yielded PEAs with significantly higher Tgs than any other AA as a result of its cyclic structure.</abstract><cop>Oxford</cop><pub>Elsevier BV</pub></addata></record> |
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| ispartof | European polymer journal, 2017-09, Vol.94, p.11 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Amino acids Chains Chemical synthesis Citric acid Copolymerization Crosslinking Differential scanning calorimetry Glass transition temperature Monomers Peas Polyesteramides Polyesters Proline Renewable resources |
| title | High Tg poly(ester amide)s by melt polycondensation of monomers from renewable resources; citric acid, D-glucono-d-lactone and amino acids: A DSC study |
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