Mesomorphic behaviour in copoly(ester-imide)s of poly(butylene-2,6-naphthalate) (PBN)
Copolycondensation of N,N′-bis(4-hydroxybutyl)-biphenyl-3,4,3′,4′-tetracarboxylic diimide at 20 and 25 mol% with bis(4-hydroxybutyl)-2,6-naphthalate produces PBN-based copoly(ester-imide)s that not only crystallise but also form a (smectic) mesophase upon cooling from the melt. Incorporation of 25 m...
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| Veröffentlicht in: | Polymer (Guilford) 2015-07, Vol.69, p.66-72 |
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| creator | Jones, Stephen M. Meehan, Stephen J. Sankey, Stephen W. MacDonald, William A. Colquhoun, Howard M. |
| description | Copolycondensation of N,N′-bis(4-hydroxybutyl)-biphenyl-3,4,3′,4′-tetracarboxylic diimide at 20 and 25 mol% with bis(4-hydroxybutyl)-2,6-naphthalate produces PBN-based copoly(ester-imide)s that not only crystallise but also form a (smectic) mesophase upon cooling from the melt. Incorporation of 25 mol% imide in PBN causes the glass transition temperature (measured by DSC) to rise from 51 to 74 °C, a significant increase relative to PBN. Furthermore, increased storage- (G′), loss- (G″) and elastic (E) moduli are observed for both copoly(ester-imide)s when compared to PBN itself. Structural analysis of the 20 mol% copolymer by X-ray powder and fibre diffraction, interfaced to computational modelling, suggests a crystal structure related to that of α-PBN, in space group P – 1, with cell dimensions a = 4.74, b = 6.38, c = 14.45 Å, α = 106.1, β = 122.1, γ = 97.3°, ρ = 1.37 g cm−3.
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•Synthesis of new copoly(ester-imide)s of PBN incorporating biphenyl units.•Enhanced thermomechanical properties (glass transition, elastic modulus) found.•An accessible, smectic mesophase seen upon cooling from the melt.•Identification of a novel copolymer crystal structure by diffraction-modelling. |
| doi_str_mv | 10.1016/j.polymer.2015.05.025 |
| format | Article |
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[Display omitted]
•Synthesis of new copoly(ester-imide)s of PBN incorporating biphenyl units.•Enhanced thermomechanical properties (glass transition, elastic modulus) found.•An accessible, smectic mesophase seen upon cooling from the melt.•Identification of a novel copolymer crystal structure by diffraction-modelling.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/j.polymer.2015.05.025</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Copolymers ; Crystal structure ; Diffraction ; Diimide ; Glass transition temperature ; Imides ; Liquid crystal ; Mesophase ; Poly(butylene-2,6-naphthalate) ; X-rays</subject><ispartof>Polymer (Guilford), 2015-07, Vol.69, p.66-72</ispartof><rights>2015 The Authors</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c389t-747d47f01f07a6d6cb2d16ec926ae42b9afd6279b19dcad300b0e8470f4e0f8a3</citedby><cites>FETCH-LOGICAL-c389t-747d47f01f07a6d6cb2d16ec926ae42b9afd6279b19dcad300b0e8470f4e0f8a3</cites><orcidid>0000-0002-4727-037X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0032386115004589$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Jones, Stephen M.</creatorcontrib><creatorcontrib>Meehan, Stephen J.</creatorcontrib><creatorcontrib>Sankey, Stephen W.</creatorcontrib><creatorcontrib>MacDonald, William A.</creatorcontrib><creatorcontrib>Colquhoun, Howard M.</creatorcontrib><title>Mesomorphic behaviour in copoly(ester-imide)s of poly(butylene-2,6-naphthalate) (PBN)</title><title>Polymer (Guilford)</title><description>Copolycondensation of N,N′-bis(4-hydroxybutyl)-biphenyl-3,4,3′,4′-tetracarboxylic diimide at 20 and 25 mol% with bis(4-hydroxybutyl)-2,6-naphthalate produces PBN-based copoly(ester-imide)s that not only crystallise but also form a (smectic) mesophase upon cooling from the melt. Incorporation of 25 mol% imide in PBN causes the glass transition temperature (measured by DSC) to rise from 51 to 74 °C, a significant increase relative to PBN. Furthermore, increased storage- (G′), loss- (G″) and elastic (E) moduli are observed for both copoly(ester-imide)s when compared to PBN itself. Structural analysis of the 20 mol% copolymer by X-ray powder and fibre diffraction, interfaced to computational modelling, suggests a crystal structure related to that of α-PBN, in space group P – 1, with cell dimensions a = 4.74, b = 6.38, c = 14.45 Å, α = 106.1, β = 122.1, γ = 97.3°, ρ = 1.37 g cm−3.
[Display omitted]
•Synthesis of new copoly(ester-imide)s of PBN incorporating biphenyl units.•Enhanced thermomechanical properties (glass transition, elastic modulus) found.•An accessible, smectic mesophase seen upon cooling from the melt.•Identification of a novel copolymer crystal structure by diffraction-modelling.</description><subject>Copolymers</subject><subject>Crystal structure</subject><subject>Diffraction</subject><subject>Diimide</subject><subject>Glass transition temperature</subject><subject>Imides</subject><subject>Liquid crystal</subject><subject>Mesophase</subject><subject>Poly(butylene-2,6-naphthalate)</subject><subject>X-rays</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkFtLxDAQhYMouK7-BKGPu2DXSXpJ-yS6eIP18uA-hzSZ0ixtU5N2Yf-9reu7MDAwc85h5iPkmsKKAk1vd6vO1ocG3YoBTVYwFktOyIxmPAoZy-kpmQFELIyylJ6TC-93AKOExTOyfUNvG-u6yqigwErujR1cYNpA2Sl1gb5HF5rGaFz6wJbB77QY-kONLYbsJg1b2VV9JWvZ4zJYfD68Ly_JWSlrj1d_fU62T49f65dw8_H8ur7fhCrK8j7kMdcxL4GWwGWqU1UwTVNUOUslxqzIZalTxvOC5lpJHQEUgFnMoYwRykxGc7I45nbOfg_jqaIxXmFdyxbt4AXlPIMkGamM0uQoVc5677AUnTONdAdBQUwYxU78YRQTRgFjscl3d_Th-MfejFuvDLYKtXGoeqGt-SfhB46Vfmg</recordid><startdate>20150709</startdate><enddate>20150709</enddate><creator>Jones, Stephen M.</creator><creator>Meehan, Stephen J.</creator><creator>Sankey, Stephen W.</creator><creator>MacDonald, William A.</creator><creator>Colquhoun, Howard M.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-4727-037X</orcidid></search><sort><creationdate>20150709</creationdate><title>Mesomorphic behaviour in copoly(ester-imide)s of poly(butylene-2,6-naphthalate) (PBN)</title><author>Jones, Stephen M. ; Meehan, Stephen J. ; Sankey, Stephen W. ; MacDonald, William A. ; Colquhoun, Howard M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-747d47f01f07a6d6cb2d16ec926ae42b9afd6279b19dcad300b0e8470f4e0f8a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Copolymers</topic><topic>Crystal structure</topic><topic>Diffraction</topic><topic>Diimide</topic><topic>Glass transition temperature</topic><topic>Imides</topic><topic>Liquid crystal</topic><topic>Mesophase</topic><topic>Poly(butylene-2,6-naphthalate)</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jones, Stephen M.</creatorcontrib><creatorcontrib>Meehan, Stephen J.</creatorcontrib><creatorcontrib>Sankey, Stephen W.</creatorcontrib><creatorcontrib>MacDonald, William A.</creatorcontrib><creatorcontrib>Colquhoun, Howard M.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jones, Stephen M.</au><au>Meehan, Stephen J.</au><au>Sankey, Stephen W.</au><au>MacDonald, William A.</au><au>Colquhoun, Howard M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mesomorphic behaviour in copoly(ester-imide)s of poly(butylene-2,6-naphthalate) (PBN)</atitle><jtitle>Polymer (Guilford)</jtitle><date>2015-07-09</date><risdate>2015</risdate><volume>69</volume><spage>66</spage><epage>72</epage><pages>66-72</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><abstract>Copolycondensation of N,N′-bis(4-hydroxybutyl)-biphenyl-3,4,3′,4′-tetracarboxylic diimide at 20 and 25 mol% with bis(4-hydroxybutyl)-2,6-naphthalate produces PBN-based copoly(ester-imide)s that not only crystallise but also form a (smectic) mesophase upon cooling from the melt. Incorporation of 25 mol% imide in PBN causes the glass transition temperature (measured by DSC) to rise from 51 to 74 °C, a significant increase relative to PBN. Furthermore, increased storage- (G′), loss- (G″) and elastic (E) moduli are observed for both copoly(ester-imide)s when compared to PBN itself. Structural analysis of the 20 mol% copolymer by X-ray powder and fibre diffraction, interfaced to computational modelling, suggests a crystal structure related to that of α-PBN, in space group P – 1, with cell dimensions a = 4.74, b = 6.38, c = 14.45 Å, α = 106.1, β = 122.1, γ = 97.3°, ρ = 1.37 g cm−3.
[Display omitted]
•Synthesis of new copoly(ester-imide)s of PBN incorporating biphenyl units.•Enhanced thermomechanical properties (glass transition, elastic modulus) found.•An accessible, smectic mesophase seen upon cooling from the melt.•Identification of a novel copolymer crystal structure by diffraction-modelling.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.polymer.2015.05.025</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-4727-037X</orcidid><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Copolymers Crystal structure Diffraction Diimide Glass transition temperature Imides Liquid crystal Mesophase Poly(butylene-2,6-naphthalate) X-rays |
| title | Mesomorphic behaviour in copoly(ester-imide)s of poly(butylene-2,6-naphthalate) (PBN) |
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