<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-08-23T20:21:55Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/5400" metadataPrefix="mods">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/5400</identifier><datestamp>2021-11-02T12:06:33Z</datestamp><setSpec>com_10259_4313</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_4314</setSpec></header><metadata><mods:mods xmlns:mods="http://www.loc.gov/mods/v3" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
<mods:name>
<mods:namePart>Trigo López, Miriam</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Sanjuán Cortázar, Ana María</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Mendía Jalón, Aránzazu</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Muñoz Santamaría, María Asunción</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>García García, Félix Clemente</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>García Pérez, José Miguel</mods:namePart>
</mods:name>
<mods:extension>
<mods:dateAvailable encoding="iso8601">2020-08-17T09:51:26Z</mods:dateAvailable>
</mods:extension>
<mods:extension>
<mods:dateAccessioned encoding="iso8601">2020-08-17T09:51:26Z</mods:dateAccessioned>
</mods:extension>
<mods:originInfo>
<mods:dateIssued encoding="iso8601">2020-08</mods:dateIssued>
</mods:originInfo>
<mods:identifier type="uri">http://hdl.handle.net/10259/5400</mods:identifier>
<mods:identifier type="doi">10.3390/polym12081793</mods:identifier>
<mods:identifier type="essn">2073-4360</mods:identifier>
<mods:abstract>We prepared high-performance aromatic copolyamides, containing bithiazole and thiazolo-thiazole groups in their main chain, from aromatic diamines and isophthaloyl chloride, to further improve the prominent thermal behavior and exceptional mechanical properties of commercial aramid fibers. The introduction of these groups leads to aramids with improved strength and moduli compared to commercial meta-oriented aromatic polyamides, together with an increase of their thermal performance. Moreover, their solubility, water uptake, and optical properties were evaluated in this work.</mods:abstract>
<mods:language>
<mods:languageTerm>eng</mods:languageTerm>
</mods:language>
<mods:accessCondition type="useAndReproduction">http://creativecommons.org/licenses/by/4.0/</mods:accessCondition>
<mods:accessCondition type="useAndReproduction">info:eu-repo/semantics/openAccess</mods:accessCondition>
<mods:accessCondition type="useAndReproduction">Atribución 4.0 Internacional</mods:accessCondition>
<mods:subject>
<mods:topic>aromatic polyamides</mods:topic>
</mods:subject>
<mods:subject>
<mods:topic>aramid</mods:topic>
</mods:subject>
<mods:subject>
<mods:topic>improved properties</mods:topic>
</mods:subject>
<mods:subject>
<mods:topic>mechanical properties</mods:topic>
</mods:subject>
<mods:subject>
<mods:topic>thermal properties</mods:topic>
</mods:subject>
<mods:subject>
<mods:topic>high-performance polymers</mods:topic>
</mods:subject>
<mods:titleInfo>
<mods:title>Heteroaromatic polyamides with Improved thermal and mechanical properties</mods:title>
</mods:titleInfo>
<mods:genre>info:eu-repo/semantics/article</mods:genre>
</mods:mods></metadata></record></GetRecord></OAI-PMH>