Surfactant concentration effects on the microemulsion polymerization of vinyl acetate
The polymerization of vinyl acetate in oil-in-water microemulsions stabilized with cetyltrimethylammonium bromide (CTAB) is reported here as a function of surfactant concentration. Reaction rate decreases as the CTAB/water ratio is increased in the parent microemulsions. Polymer particles in the lat...
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| Veröffentlicht in: | Polymer (Guilford) 2005-04, Vol.46 (9), p.2900-2907 |
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| creator | Gómez-Cisneros, M. Treviño, M.E. Peralta, R.D. Rabelero, M. Mendizábal, E. Puig, J.E. Cesteros, C. López, R.G. |
| description | The polymerization of vinyl acetate in oil-in-water microemulsions stabilized with cetyltrimethylammonium bromide (CTAB) is reported here as a function of surfactant concentration. Reaction rate decreases as the CTAB/water ratio is increased in the parent microemulsions. Polymer particles in the latexes grow with conversion; they also become bigger as the initial surfactant content is increased. Number-average molar masses are smaller than those expected by termination by chain transfer to monomer, but weight-average molar masses increased as the surfactant concentration in the parent microemulsion is raised. However, the latter are much smaller than those obtained by polymerization in an emulsion stabilized with the same surfactant. Possible explanations to this unusual behavior are provided here. |
| doi_str_mv | 10.1016/j.polymer.2005.02.044 |
| format | Article |
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Reaction rate decreases as the CTAB/water ratio is increased in the parent microemulsions. Polymer particles in the latexes grow with conversion; they also become bigger as the initial surfactant content is increased. Number-average molar masses are smaller than those expected by termination by chain transfer to monomer, but weight-average molar masses increased as the surfactant concentration in the parent microemulsion is raised. However, the latter are much smaller than those obtained by polymerization in an emulsion stabilized with the same surfactant. Possible explanations to this unusual behavior are provided here.</description><identifier>ISSN: 0032-3861</identifier><identifier>EISSN: 1873-2291</identifier><identifier>DOI: 10.1016/j.polymer.2005.02.044</identifier><identifier>CODEN: POLMAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Microemulsion polymerization ; Organic polymers ; Physicochemistry of polymers ; Polymerization ; Preparation, kinetics, thermodynamics, mechanism and catalysts ; Surfactant effects ; Vinyl acetate polymerization</subject><ispartof>Polymer (Guilford), 2005-04, Vol.46 (9), p.2900-2907</ispartof><rights>2005 Elsevier Ltd</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c401t-c299f671a64f1adf0fbf54b52bdd948ac2e1b26456bfdf3031369ae2baed673</citedby><cites>FETCH-LOGICAL-c401t-c299f671a64f1adf0fbf54b52bdd948ac2e1b26456bfdf3031369ae2baed673</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.polymer.2005.02.044$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3554,27933,27934,46004</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16660941$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Gómez-Cisneros, M.</creatorcontrib><creatorcontrib>Treviño, M.E.</creatorcontrib><creatorcontrib>Peralta, R.D.</creatorcontrib><creatorcontrib>Rabelero, M.</creatorcontrib><creatorcontrib>Mendizábal, E.</creatorcontrib><creatorcontrib>Puig, J.E.</creatorcontrib><creatorcontrib>Cesteros, C.</creatorcontrib><creatorcontrib>López, R.G.</creatorcontrib><title>Surfactant concentration effects on the microemulsion polymerization of vinyl acetate</title><title>Polymer (Guilford)</title><description>The polymerization of vinyl acetate in oil-in-water microemulsions stabilized with cetyltrimethylammonium bromide (CTAB) is reported here as a function of surfactant concentration. Reaction rate decreases as the CTAB/water ratio is increased in the parent microemulsions. Polymer particles in the latexes grow with conversion; they also become bigger as the initial surfactant content is increased. Number-average molar masses are smaller than those expected by termination by chain transfer to monomer, but weight-average molar masses increased as the surfactant concentration in the parent microemulsion is raised. However, the latter are much smaller than those obtained by polymerization in an emulsion stabilized with the same surfactant. Possible explanations to this unusual behavior are provided here.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Microemulsion polymerization</subject><subject>Organic polymers</subject><subject>Physicochemistry of polymers</subject><subject>Polymerization</subject><subject>Preparation, kinetics, thermodynamics, mechanism and catalysts</subject><subject>Surfactant effects</subject><subject>Vinyl acetate polymerization</subject><issn>0032-3861</issn><issn>1873-2291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNkF1LwzAUhoMoOKc_QeiN3rWepGnaXokMv2DgxfQ6pOkJZvRjJtlg_npTNvBSrxLIc86b9yHkmkJGgYq7dbYZu32PLmMARQYsA85PyIxWZZ4yVtNTMgPIWZpXgp6TC-_XAMAKxmfkY7V1RumghpDocdA4BKeCHYcEjUEdfBKv4ROT3mo3Yr_t_PR4DLTfB3Y0yc4O-y5RGoMKeEnOjOo8Xh3POVk9Pb4vXtLl2_Pr4mGZag40pJrVtRElVYIbqloDpjEFbwrWtG3NK6UZ0oYJXojGtCaHnOaiVsgaha0o8zm5PWzduPFriz7I3nqNXacGHLdesqqiRaz8D1CwsmJ5BIsDGLt679DIjbO9cntJQU6u5Voeq8vJtQQmo-s4d3MMUF6rzjg1aOt_h4UQUPPpI_cHDqOUnY1bvLYYrbfWRdmyHe0fST98_5pO</recordid><startdate>20050415</startdate><enddate>20050415</enddate><creator>Gómez-Cisneros, M.</creator><creator>Treviño, M.E.</creator><creator>Peralta, R.D.</creator><creator>Rabelero, M.</creator><creator>Mendizábal, E.</creator><creator>Puig, J.E.</creator><creator>Cesteros, C.</creator><creator>López, R.G.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20050415</creationdate><title>Surfactant concentration effects on the microemulsion polymerization of vinyl acetate</title><author>Gómez-Cisneros, M. ; Treviño, M.E. ; Peralta, R.D. ; Rabelero, M. ; Mendizábal, E. ; Puig, J.E. ; Cesteros, C. ; López, R.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c401t-c299f671a64f1adf0fbf54b52bdd948ac2e1b26456bfdf3031369ae2baed673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Applied sciences</topic><topic>Exact sciences and technology</topic><topic>Microemulsion polymerization</topic><topic>Organic polymers</topic><topic>Physicochemistry of polymers</topic><topic>Polymerization</topic><topic>Preparation, kinetics, thermodynamics, mechanism and catalysts</topic><topic>Surfactant effects</topic><topic>Vinyl acetate polymerization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gómez-Cisneros, M.</creatorcontrib><creatorcontrib>Treviño, M.E.</creatorcontrib><creatorcontrib>Peralta, R.D.</creatorcontrib><creatorcontrib>Rabelero, M.</creatorcontrib><creatorcontrib>Mendizábal, E.</creatorcontrib><creatorcontrib>Puig, J.E.</creatorcontrib><creatorcontrib>Cesteros, C.</creatorcontrib><creatorcontrib>López, R.G.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Polymer (Guilford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gómez-Cisneros, M.</au><au>Treviño, M.E.</au><au>Peralta, R.D.</au><au>Rabelero, M.</au><au>Mendizábal, E.</au><au>Puig, J.E.</au><au>Cesteros, C.</au><au>López, R.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Surfactant concentration effects on the microemulsion polymerization of vinyl acetate</atitle><jtitle>Polymer (Guilford)</jtitle><date>2005-04-15</date><risdate>2005</risdate><volume>46</volume><issue>9</issue><spage>2900</spage><epage>2907</epage><pages>2900-2907</pages><issn>0032-3861</issn><eissn>1873-2291</eissn><coden>POLMAG</coden><abstract>The polymerization of vinyl acetate in oil-in-water microemulsions stabilized with cetyltrimethylammonium bromide (CTAB) is reported here as a function of surfactant concentration. 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| ispartof | Polymer (Guilford), 2005-04, Vol.46 (9), p.2900-2907 |
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| subjects | Applied sciences Exact sciences and technology Microemulsion polymerization Organic polymers Physicochemistry of polymers Polymerization Preparation, kinetics, thermodynamics, mechanism and catalysts Surfactant effects Vinyl acetate polymerization |
| title | Surfactant concentration effects on the microemulsion polymerization of vinyl acetate |
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