<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0187-893X</journal-id>
<journal-title><![CDATA[Educación química]]></journal-title>
<abbrev-journal-title><![CDATA[Educ. quím]]></abbrev-journal-title>
<issn>0187-893X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Química]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0187-893X2025000100109</article-id>
<article-id pub-id-type="doi">10.22201/fq.18708404e.2025.1.87808</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aplicando la química orgánica en la síntesis de polímeros por el mecanismo en etapas]]></article-title>
<article-title xml:lang="en"><![CDATA[Applying organic chemistry in the synthesis of polymers by the step mechanism]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-González]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Trejo-Carbajal]]></surname>
<given-names><![CDATA[Nayely]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caldera-Villalobos]]></surname>
<given-names><![CDATA[Martín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Americana del Noreste  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>36</volume>
<numero>1</numero>
<fpage>109</fpage>
<lpage>123</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0187-893X2025000100109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0187-893X2025000100109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0187-893X2025000100109&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La enseñanza química es dinámica, y una manera de generar aprendizaje significativo es a través de su aplicación. Por ejemplo, la química orgánica se aplica en los mecanismos de polimerización y propicia su entendimiento. Es muy común encontrar en los libros los mecanismos en cadena ya sea iónica o vía radicales libres, no así para los polímeros que se obtienen por etapas. Los mecanismos por etapas son diferentes dependiendo de los grupos funcionales orgánicos involucrados en las reacciones de polimerización. De modo que es necesario el conocimiento de la química orgánica para el entendimiento de dichos mecanismos. Los mecanismos de las reacciones de polimerización, puede resultar un tema complejo de entender para muchos estudiantes aprendices de la química de polímeros. En el presente artículo se detallan y comparan los mecanismos de polimerización en etapas y en cadena evidenciando sus diferencias y se enfatiza en desarrollar mecanismos de reacción de algunos polímeros commodities y de ingeniería que se obtienen por el mecanismo de etapas; PET, Nylon, tiocol, poliuretano, baquelita y melamina de una manera didáctica y dinámica para su fácil aprendizaje.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Chemistry teaching is dynamic and one way to generate meaningful learning is through its application. For example, organic chemistry is applied to polymerization mechanisms and promotes their understanding. It is very common to find chain mechanisms in books, whether ionic or via free radicals, but this is not the case for polymers that are obtained in step mechanisms. The step mechanisms are different depending on the organic functional groups involved in the polymerization reactions. So, knowledge of organic chemistry is necessary to understand these mechanisms. The mechanisms of polymerization reactions can be a complex topic to understand for many students and apprentices of polymer chemistry. This article details and compares the mechanisms of stage and chain polymerization, evidencing their differences and emphasizes developing reaction mechanisms of some commodity and engineering polymers that are obtained by the step mechanism; PET, Nylon, Thiokol, polyurethane, Bakelite and melamine in a didactic and dynamic way for easy learning.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[enseñanza universitaria]]></kwd>
<kwd lng="es"><![CDATA[licenciatura]]></kwd>
<kwd lng="es"><![CDATA[química orgánica]]></kwd>
<kwd lng="es"><![CDATA[mecanismos de polimerización]]></kwd>
<kwd lng="es"><![CDATA[mecanismo de etapas]]></kwd>
<kwd lng="es"><![CDATA[orgánica aplicada]]></kwd>
<kwd lng="en"><![CDATA[university education]]></kwd>
<kwd lng="en"><![CDATA[bachelor&#8217;s degree]]></kwd>
<kwd lng="en"><![CDATA[organic chemistry]]></kwd>
<kwd lng="en"><![CDATA[polymerization mechanisms]]></kwd>
<kwd lng="en"><![CDATA[step mechanism]]></kwd>
<kwd lng="en"><![CDATA[applied organic]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bada]]></surname>
<given-names><![CDATA[S. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Olusegun]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Constructivism learning theory: A paradigm for teaching and learning]]></article-title>
<source><![CDATA[Journal of Research &amp; Method in Education]]></source>
<year>2015</year>
<volume>5</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>66-70</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Billmeyer]]></surname>
<given-names><![CDATA[F. W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ciencia de los polímeros]]></source>
<year>2020</year>
<publisher-loc><![CDATA[Nueva York, USA ]]></publisher-loc>
<publisher-name><![CDATA[Reverté]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Caldera]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Herrera]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Polímeros adhesivos y formación de uniones a través de reacciones de polimerización y fuerzas intermoleculares]]></article-title>
<source><![CDATA[Educación Química]]></source>
<year>2019</year>
<volume>30</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>2-13</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carraher Jr]]></surname>
<given-names><![CDATA[C. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Seymour/Carraher&#8217;s polymer chemistry]]></source>
<year>2003</year>
<publisher-loc><![CDATA[Nueva York, USA ]]></publisher-loc>
<publisher-name><![CDATA[CRC Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Castellar]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Angulo]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Cardozo]]></surname>
<given-names><![CDATA[B. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Transesterification vegetable oils using heterogeneous catalysts]]></article-title>
<source><![CDATA[Prospect]]></source>
<year>2014</year>
<volume>12</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>90-104</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duffy]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Zetterlund]]></surname>
<given-names><![CDATA[P. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Aldabbagh]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Radical polymerization of alkyl 2-cyanoacrylates]]></article-title>
<source><![CDATA[Molecules]]></source>
<year>2018</year>
<volume>23</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>465</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elizondo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Lizardi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sillas]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Soto]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Obtención de un aromatizante por medio de la esterificación de Fischer]]></article-title>
<source><![CDATA[Revista naturaleza y tecnología (ensayos)]]></source>
<year>2013</year>
<volume>2</volume>
<page-range>31-5</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Flory]]></surname>
<given-names><![CDATA[P. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Principles of polymer chemistry]]></source>
<year>1953</year>
<publisher-loc><![CDATA[Nueva York, USA ]]></publisher-loc>
<publisher-name><![CDATA[Cornell University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gallardo]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Merino]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Los polímeros: Una progresión y propuesta didáctica]]></article-title>
<source><![CDATA[Educación Química]]></source>
<year>2022</year>
<volume>33</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jenkins]]></surname>
<given-names><![CDATA[A. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Kratochvíl]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Stepto]]></surname>
<given-names><![CDATA[R. F. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Suter]]></surname>
<given-names><![CDATA[U. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Glossary of basic terms in polymer science (IUPAC Recommendations 1996)]]></article-title>
<source><![CDATA[Pure and Applied Chemistry]]></source>
<year>1996</year>
<volume>68</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>2287-311</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jonassen]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Strobel]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modeling for meaningful learning]]></article-title>
<source><![CDATA[Engaged learning with emerging technologies]]></source>
<year>2006</year>
<page-range>1-27</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McMurry]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Química orgánica]]></source>
<year>2006</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Thomson]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morrison]]></surname>
<given-names><![CDATA[R. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Boyd]]></surname>
<given-names><![CDATA[R. T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Química orgánica]]></source>
<year>1992</year>
<publisher-loc><![CDATA[Argentina ]]></publisher-loc>
<publisher-name><![CDATA[Addison-Wesley Iberoamericana]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Odian]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Principles of polymerization]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Nueva York, USA ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley &amp; Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Raman]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Surif]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Ibrahim]]></surname>
<given-names><![CDATA[N. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The effect of problem-based learning approach in enhancing problem-solving skills in chemistry education: A systematic review]]></article-title>
<source><![CDATA[International Journal of Interactive Mobile Technologies]]></source>
<year>2024</year>
<volume>18</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soderberg]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The nucleophilic acyl substitution mechanism]]></article-title>
<source><![CDATA[Is licensed CC BY-NC-SA 4.0.]]></source>
<year>2024</year>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solomons]]></surname>
<given-names><![CDATA[T. W. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Fryhle]]></surname>
<given-names><![CDATA[C. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Snyder]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Solomons&#8217; Organic Chemistry]]></source>
<year>2017</year>
<publisher-loc><![CDATA[Singapur ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wade]]></surname>
<given-names><![CDATA[L. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Simek]]></surname>
<given-names><![CDATA[J. W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Química orgánica]]></source>
<year>2017</year>
<volume>1 y 2</volume>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Pearson]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
