<?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>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212021000200069</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Membranas poliméricas cargadas con zeolita para su futuro empleo en la adsorción de gases contaminantes]]></article-title>
<article-title xml:lang="en"><![CDATA[Polimeric membranes loaded with zeolite for their future use in the adsorption of polluting gases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez-Ares]]></surname>
<given-names><![CDATA[Roxana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-García]]></surname>
<given-names><![CDATA[Ariel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Hurtado]]></surname>
<given-names><![CDATA[Mayra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reguera-Núñez]]></surname>
<given-names><![CDATA[Leslie]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Autié-Castro]]></surname>
<given-names><![CDATA[Giselle]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Farías-Piñeira]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Nacional de Investigaciones Científicas (CNIC)  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de La Habana Instituto de Ciencia y Tecnología de Materiales (IMRE) ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de La Habana Facultad de Química ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>33</volume>
<numero>2</numero>
<fpage>69</fpage>
<lpage>90</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212021000200069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212021000200069&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212021000200069&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este trabajo se desarrollaron membranas de alcohol polivinílico (PVA) cargadas con una zeolita natural cubana para su potencial aplicación en la adsorción de CO2. Las mismas fueron caracterizadas por microscopía electrónica de barrido, espectroscopia FTIR con ATR y análisis termogravimétrico. Se pudo comprobar que es posible obtener membranas de PVA/zeolita que son flexibles, homogéneas y con adecuada estabilidad térmica. Se evaluó la importancia de la cantidad de agua adicionada en las características físicas de las membranas. Se pudo establecer que no hay interacciones significativas entre el polímero y la zeolita en los materiales compuestos. Se demostró que su comportamiento térmico depende de la cantidad de zeolita adicionada. Los resultados obtenidos en los estudios de adsorción estática de CO2 a 25 oC sugieren que las membranas compuestas PVA/zeolita pueden ser buenas candidatas como adsorbentes de este gas para su empleo en la purificación del aire.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In this work, were developed membranes of polyvinyl alcohol (PVA) loaded with a cuban natural zeolite for their potential application in CO2 adsorption. Those were characterized by scanning electron microscopy, FTIR spectroscopy with ATR and thermogravimetric analysis. It could be proven that it is possible to obtain membranes of PVA/zeolite that are flexible, homogeneous and with appropriate thermal stability. The importance of the quantity of water was evaluated added in the physical characteristics of the membranes. It could settle down that there are not significant interactions between the polymer and the zeolite in the compound materials. It was demonstrated that their thermal behavior depends on the quantity of added zeolite. The results obtained in the studies of static adsorption from CO2 to 25 oC suggest that the compound membranes PVA/zeolite can be good candidates like adsorbents of this gas for its employment in the purification of the air.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[membranas de PVA]]></kwd>
<kwd lng="es"><![CDATA[zeolita]]></kwd>
<kwd lng="es"><![CDATA[clinoptilolita]]></kwd>
<kwd lng="es"><![CDATA[caracterización]]></kwd>
<kwd lng="es"><![CDATA[adsorción de CO2]]></kwd>
<kwd lng="en"><![CDATA[PVA membranes]]></kwd>
<kwd lng="en"><![CDATA[zeolite]]></kwd>
<kwd lng="en"><![CDATA[clinoptilolite]]></kwd>
<kwd lng="en"><![CDATA[characterization]]></kwd>
<kwd lng="en"><![CDATA[CO2 adsorption]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ROMERO PLACERES]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[DIEGO OLITE]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[ÁLVAREZ TOSTE]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[La contaminación del aire: su repercusión como problema de salud]]></article-title>
<source><![CDATA[Revista Cubana de Higiene y Epidemiología]]></source>
<year>2003</year>
<volume>44</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>1-14</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MARTÍNEZ ATAZ]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[DÍAZ DE MERA MORALES]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Contaminación atmosférica]]></source>
<year>2004</year>
<publisher-loc><![CDATA[España ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones de la Universidad de Castilla-La Mancha]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PARK]]></surname>
<given-names><![CDATA[J.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Historic and futuristic review of electron beam technology for the treatment of SO2 and NOx in flue gas]]></article-title>
<source><![CDATA[Chemical Engineering Journal]]></source>
<year>2019</year>
<volume>355</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>351-66</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[HASSAN]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gas condensate treatment: A critical review of materials, methods, field applications, and new solutions]]></article-title>
<source><![CDATA[Journal of Petroleum Science and Engineering]]></source>
<year>2019</year>
<volume>177</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>602-13</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[KONG PUI]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[YUSOFF]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[KHEIREDDINE AROUA]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review on activated carbon adsorption for volatile organic compounds (VOCs)]]></article-title>
<source><![CDATA[Reviews in Chemical Engineering]]></source>
<year>2019</year>
<volume>35</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>649-68</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[FARÍAS]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinoptilolita cubana para la adsorción de rodamina B. Caracterización de los materiales zeolita-colorante obtenidos]]></article-title>
<source><![CDATA[Revista Cubana de Química]]></source>
<year>2018</year>
<volume>30</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>175-90</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BORREGO-MORALES]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Low cost synthesis and characterization of hierarchical zeolites from silicon natural sources for environmental applications]]></article-title>
<source><![CDATA[Acta Microscopica]]></source>
<year>2018</year>
<volume>27</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>189-95</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ESPINOSA]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[OLMOS]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[HERNÁNDEZ]]></surname>
<given-names><![CDATA[B.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Zeolitas naturales: Una alternativa para la remediación ambiental]]></article-title>
<source><![CDATA[KnE Engineering]]></source>
<year>2018</year>
<volume>3</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>728-35</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BRITO]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[COUTÍN]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Panorámica del estudio de las zeolititas de Cuba, desde los inicios hasta la actualidad]]></source>
<year>2017</year>
<conf-name><![CDATA[ XII Congreso de Geología. VII Convención de Ciencias de la Tierra. Geociencias 2017]]></conf-name>
<conf-loc>La Habana, Cuba </conf-loc>
<page-range>821-38</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GIANNETO-PACE]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[MONTES-RENDÓN]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[RODRÍGUEZ-FUENTES]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Zeolitas. Características, propiedades y aplicaciones industriale]]></source>
<year>2000</year>
<edition>2</edition>
<publisher-loc><![CDATA[Caracas ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Innovación Tecnológica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[AGUILAR-ARMENTA]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[PATIÑO-IGLESIAS]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[LEYVA-RAMOS]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorption kinetic behaviour of pure CO2, N2 and CH4 in natural clinoptilolite at different temperatures]]></article-title>
<source><![CDATA[Adsorption Science and Technology]]></source>
<year>2003</year>
<volume>21</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>81-91</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MOFARAHI]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[GHOLIPOUR]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gas adsorption separation of CO2/CH4 system using zeolite 5A]]></article-title>
<source><![CDATA[Microporous and Mesoporous Materials]]></source>
<year>2014</year>
<volume>200</volume>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LIANG]]></surname>
<given-names><![CDATA[C.Z.]]></given-names>
</name>
<name>
<surname><![CDATA[CHUNG]]></surname>
<given-names><![CDATA[T.-S.]]></given-names>
</name>
<name>
<surname><![CDATA[LAI]]></surname>
<given-names><![CDATA[J.-Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of polymeric composite membranes for gas separation and energy production]]></article-title>
<source><![CDATA[Progress in Polymer Science]]></source>
<year>2019</year>
<volume>97</volume>
<page-range>101141</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ASGHARI]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[MOSADEGH]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[HARAMI]]></surname>
<given-names><![CDATA[H.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Supported PEBA-zeolite 13X nano-composite membranes for gas separation: Preparation, characterization and molecular dynamics simulation]]></article-title>
<source><![CDATA[Chemical Engineering Science]]></source>
<year>2018</year>
<volume>187</volume>
<page-range>67-78</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SANDERS]]></surname>
<given-names><![CDATA[D.F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Energy-efficient polymeric gas separation membranes for a sustainable future: a review]]></article-title>
<source><![CDATA[Polymer]]></source>
<year>2013</year>
<volume>54</volume>
<numero>18</numero>
<issue>18</issue>
<page-range>4729-61</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ISMAIL]]></surname>
<given-names><![CDATA[A.F.]]></given-names>
</name>
<name>
<surname><![CDATA[KHULBE]]></surname>
<given-names><![CDATA[K.C.]]></given-names>
</name>
<name>
<surname><![CDATA[MATSUURA]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Gas separation membranes, polymeric and inorganic]]></source>
<year>2015</year>
<edition>1</edition>
<publisher-loc><![CDATA[Switzerland ]]></publisher-loc>
<publisher-name><![CDATA[Springer International Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[HSU]]></surname>
<given-names><![CDATA[P.-Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Highly zeolite-loaded polyvinyl alcohol composite membranes for alkaline fuel-cell electrolytes]]></article-title>
<source><![CDATA[Polymer]]></source>
<year>2018</year>
<volume>10</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>102-18</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ-FUENTES]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Design and development of new zeolitic materials based on natural clinoptilolite]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[R. Xu]]></surname>
<given-names><![CDATA[Z. Gao]]></given-names>
</name>
<name>
<surname><![CDATA[J. Chen]]></surname>
<given-names><![CDATA[W. Yan]]></given-names>
</name>
</person-group>
<source><![CDATA[From zeolites to porous MOF materials-the 40 th anniversary of International Zeolite Conference, Studies in Surface Science and Catalysis]]></source>
<year>2007</year>
<page-range>2074-9</page-range><publisher-loc><![CDATA[China ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[FARÍAS]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tesis de Maestría: Preparación de potenciales soportes zeolíticos para la liberación de iones de interés farmacéutico]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Ciudad de La Habana ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de La Habana]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[YU]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preparation and properties of chitosan derivative/poly(vinyl alcohol) blend film crosslinked with glutaraldehyde]]></article-title>
<source><![CDATA[Carbohydrate Polymers]]></source>
<year>2011</year>
<volume>84</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>465-70</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[TREACY]]></surname>
<given-names><![CDATA[M.M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[HIGGINS]]></surname>
<given-names><![CDATA[J.B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Collection of Simulated XRD Powder Patterns for Zeolites]]></source>
<year>2007</year>
<edition>5</edition>
<publisher-loc><![CDATA[Amsterdam ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier Science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ-FUENTES]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Solid state multinuclear NMR study of iron species in natural and modified clinoptilolite from Tasajera deposit (Cuba)]]></article-title>
<source><![CDATA[Microporous and Mesoporous Materials]]></source>
<year>2008</year>
<volume>111</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>577-90</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BRECK]]></surname>
<given-names><![CDATA[D.W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Zeolite molecular sieves: Structure, chemistry, and use]]></source>
<year>1974</year>
<edition>1</edition>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Wiley]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[HERNÁNDEZ]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparación de la capacidad de adsorción de CO2 en clinoptilolitas naturales y tratadas químicamente]]></article-title>
<source><![CDATA[Superficies y Vacío]]></source>
<year>2010</year>
<volume>23</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>67-72</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ESCOBAR-SIERRA]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
<name>
<surname><![CDATA[PEREA-MESA]]></surname>
<given-names><![CDATA[Y.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Manufacturing and evaluation of chitosan, PVA and Aloe Vera hydrogels for skin applications]]></article-title>
<source><![CDATA[DYNA]]></source>
<year>2017</year>
<volume>84</volume>
<numero>203</numero>
<issue>203</issue>
<page-range>134-42</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[NAGAHAMA]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preparation and characterization of novel chitosan/gelatin membranes using chitosan hidrogel]]></article-title>
<source><![CDATA[Carbohydrate Polymers]]></source>
<year>2009</year>
<volume>76</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>255-60</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BLOUT]]></surname>
<given-names><![CDATA[E.R.]]></given-names>
</name>
<name>
<surname><![CDATA[KARPLUS]]></surname>
<given-names><![CDATA[J.A.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The infrared spectrum of polyvinyl alcohol]]></article-title>
<source><![CDATA[Journal of the American Chemical Society]]></source>
<year>1948</year>
<volume>70</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>862-4</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BARTHOMEUF]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Basic zeolites: Characterization and uses in adsorption and catalysis]]></article-title>
<source><![CDATA[Catalysis Reviews, Science and Engineering]]></source>
<year>1996</year>
<volume>38</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>521-612</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PENG]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[KONG]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A thermal degradation mechanism of polyvinyl alcohol/silica nanocomposites]]></article-title>
<source><![CDATA[Polymer Degradation and Stability]]></source>
<year>2007</year>
<volume>92</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1061-71</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SING]]></surname>
<given-names><![CDATA[K.S.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity]]></article-title>
<source><![CDATA[Pure and Applied Chemistry]]></source>
<year>1985</year>
<volume>57</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>603-19</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BAERLOCHER]]></surname>
<given-names><![CDATA[CH.]]></given-names>
</name>
<name>
<surname><![CDATA[MCCUSKER]]></surname>
<given-names><![CDATA[L. B.]]></given-names>
</name>
<name>
<surname><![CDATA[OLSON]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Atlas of zeolite framework types]]></source>
<year>2007</year>
<edition>6</edition>
<publisher-name><![CDATA[Elsevier Science]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GARCÍA]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Adsorción de CO2, H2 y CH4 en zeolitas naturales de poro angosto]]></article-title>
<source><![CDATA[Revista Internacional de Contaminación Ambiental]]></source>
<year>2018</year>
<volume>34</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>685-96</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
