Styrene divinyl benzene copolymers. I. Texture of macroporous copolymers with ethyl-2-hexanoic acid in diluent

Styrene divinyl benzene copolymers. I. Texture of macroporous copolymers with ethyl-2-hexanoic acid in diluent

The texture and the pore size distribution of a set of styrene divinylbenzene copolymers, prepared by suspension polymerization with various compositions and various amounts of ethyl‐2‐hexanoic acid as diluent, have been studied using nitrogen adsorption‐desorption isotherms, mercury porosimetry, an...

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Veröffentlicht in:Journal of applied polymer science 1979-02, Vol.23 (3), p.927-939
Hauptverfasser: Jacobelli, H., Bartholin, M., Guyot, A.
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Bartholin, M.
Guyot, A.
description The texture and the pore size distribution of a set of styrene divinylbenzene copolymers, prepared by suspension polymerization with various compositions and various amounts of ethyl‐2‐hexanoic acid as diluent, have been studied using nitrogen adsorption‐desorption isotherms, mercury porosimetry, and scanning‐electron microscopy. It appears that pore volume and surface area may be well predicted in a large range of conditions (divinylbenzene contents between 20 and 60%, ethyl‐2‐hexanoic acid contents between 35% and 60%). In this range of conditions there are three structures: the elementary nuclei are spherical particles of about 100–200 Å in diameter. They are organized in microspheres of about 500–1000 Å, and the microspheres form aggregates (2500–5000 Å) more or less separated by large holes. The smaller pores (
doi_str_mv 10.1002/app.1979.070230327
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Texture of macroporous copolymers with ethyl-2-hexanoic acid in diluent</title><author>Jacobelli, H. ; Bartholin, M. ; Guyot, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2517-2157706714385cf73234d0de3a16bc8443262337dccf84089e8e8e179c9e95dd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1979</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jacobelli, H.</creatorcontrib><creatorcontrib>Bartholin, M.</creatorcontrib><creatorcontrib>Guyot, A.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jacobelli, H.</au><au>Bartholin, M.</au><au>Guyot, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Styrene divinyl benzene copolymers. I. Texture of macroporous copolymers with ethyl-2-hexanoic acid in diluent</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>1979-02-01</date><risdate>1979</risdate><volume>23</volume><issue>3</issue><spage>927</spage><epage>939</epage><pages>927-939</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>The texture and the pore size distribution of a set of styrene divinylbenzene copolymers, prepared by suspension polymerization with various compositions and various amounts of ethyl‐2‐hexanoic acid as diluent, have been studied using nitrogen adsorption‐desorption isotherms, mercury porosimetry, and scanning‐electron microscopy. It appears that pore volume and surface area may be well predicted in a large range of conditions (divinylbenzene contents between 20 and 60%, ethyl‐2‐hexanoic acid contents between 35% and 60%). In this range of conditions there are three structures: the elementary nuclei are spherical particles of about 100–200 Å in diameter. They are organized in microspheres of about 500–1000 Å, and the microspheres form aggregates (2500–5000 Å) more or less separated by large holes. The smaller pores (&lt;40 Å) are in the microspheres, between the nuclei; they are present only if the amount of divinylbenzene is high enough. Intermediate pores (40–500 Å) are, in the aggregates, between the microspheres, although the larger pores between the aggregates range from about 500 Å to more than 10,000 Å, depending on the amount of diluent.</abstract><cop>New York</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.1979.070230327</doi><tpages>13</tpages></addata></record>
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title Styrene divinyl benzene copolymers. I. Texture of macroporous copolymers with ethyl-2-hexanoic acid in diluent
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