Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films
ABSTRACT A polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles (
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| Veröffentlicht in: | Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 2019-07, Vol.57 (13), p.1373-1388 |
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| container_title | Journal of polymer science. Part A, Polymer chemistry |
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| creator | Drake, Ian Cardoen, Gregoire Hughes, Andrew Beshah, Kebede Kearns, Kenneth L. Zhang, Tianlan Reffner, John Wolf, Casey Even, Ralph |
| description | ABSTRACT
A polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles ( |
| doi_str_mv | 10.1002/pola.29391 |
| format | Article |
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A polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles (<20 nm dispersions, up to 30 wt % aq. soln.). These nanoparticles enabled surfactant‐free emulsion polymerization to form hybrid polyurea‐acrylic particles despite the absence of a measureable water‐soluble fraction. The Tg of the starting PUM material was a strong function of the PUM's extent of neutralization and hydration (varying between 100 °C and >175 °C) due to changes in hydrogen and ionic bonding. Two separate hybrid polyurea‐acrylic emulsion systems were prepared: one by direct polymerization of (meth)acrylic monomers in the presence of the nanodispersion and a second by a physical blend of PUM nanodispersion with an acrylic latex control. The direct polymerization method resulted in a hybrid emulsion particle size that developed by a mechanism resembling conventional emulsion polymerization and was unlike that described for seeded polyurethane dispersion systems. Film hardness was shown to increase with increasing coating thickness for the hybrid film prepared by direct polymerization. The resulting mechanical properties could be explained by applying mechanical models for a composite foam structure. These results were unprecedented for normal elastomer films. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1373–1388
A polyurea macromer was synthesized and dispersed in basic conditions forming self‐assembled nanoparticles. While no water‐soluble fraction was measurable, these particles enabled surfactant‐free emulsion polymerization to form a hybrid acrylic‐polyurea particle capable of film forming at room temperature with properties consistent with a composite closed cell foam structure.</description><identifier>ISSN: 0887-624X</identifier><identifier>EISSN: 1099-0518</identifier><identifier>DOI: 10.1002/pola.29391</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>acrylic hybrid ; Acrylics ; composite nano‐foam ; Dispersions ; Elastomers ; Emulsion polymerization ; Emulsions ; Hybrid systems ; Latex ; Mechanical properties ; nanodispersion ; Nanoparticles ; Polymerization ; polyurea ; Polyurethane resins ; self‐assembly ; Thickness</subject><ispartof>Journal of polymer science. Part A, Polymer chemistry, 2019-07, Vol.57 (13), p.1373-1388</ispartof><rights>2019 Wiley Periodicals, Inc.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3381-3cc9d1eb9e4054c56d1cd8301f7e04a963a699b3d7203b634467161226deae353</citedby><cites>FETCH-LOGICAL-c3381-3cc9d1eb9e4054c56d1cd8301f7e04a963a699b3d7203b634467161226deae353</cites><orcidid>0000-0002-0128-4012</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpola.29391$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpola.29391$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Drake, Ian</creatorcontrib><creatorcontrib>Cardoen, Gregoire</creatorcontrib><creatorcontrib>Hughes, Andrew</creatorcontrib><creatorcontrib>Beshah, Kebede</creatorcontrib><creatorcontrib>Kearns, Kenneth L.</creatorcontrib><creatorcontrib>Zhang, Tianlan</creatorcontrib><creatorcontrib>Reffner, John</creatorcontrib><creatorcontrib>Wolf, Casey</creatorcontrib><creatorcontrib>Even, Ralph</creatorcontrib><title>Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films</title><title>Journal of polymer science. Part A, Polymer chemistry</title><description>ABSTRACT
A polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles (<20 nm dispersions, up to 30 wt % aq. soln.). These nanoparticles enabled surfactant‐free emulsion polymerization to form hybrid polyurea‐acrylic particles despite the absence of a measureable water‐soluble fraction. The Tg of the starting PUM material was a strong function of the PUM's extent of neutralization and hydration (varying between 100 °C and >175 °C) due to changes in hydrogen and ionic bonding. Two separate hybrid polyurea‐acrylic emulsion systems were prepared: one by direct polymerization of (meth)acrylic monomers in the presence of the nanodispersion and a second by a physical blend of PUM nanodispersion with an acrylic latex control. The direct polymerization method resulted in a hybrid emulsion particle size that developed by a mechanism resembling conventional emulsion polymerization and was unlike that described for seeded polyurethane dispersion systems. Film hardness was shown to increase with increasing coating thickness for the hybrid film prepared by direct polymerization. The resulting mechanical properties could be explained by applying mechanical models for a composite foam structure. These results were unprecedented for normal elastomer films. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1373–1388
A polyurea macromer was synthesized and dispersed in basic conditions forming self‐assembled nanoparticles. While no water‐soluble fraction was measurable, these particles enabled surfactant‐free emulsion polymerization to form a hybrid acrylic‐polyurea particle capable of film forming at room temperature with properties consistent with a composite closed cell foam structure.</description><subject>acrylic hybrid</subject><subject>Acrylics</subject><subject>composite nano‐foam</subject><subject>Dispersions</subject><subject>Elastomers</subject><subject>Emulsion polymerization</subject><subject>Emulsions</subject><subject>Hybrid systems</subject><subject>Latex</subject><subject>Mechanical properties</subject><subject>nanodispersion</subject><subject>Nanoparticles</subject><subject>Polymerization</subject><subject>polyurea</subject><subject>Polyurethane resins</subject><subject>self‐assembly</subject><subject>Thickness</subject><issn>0887-624X</issn><issn>1099-0518</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxDAUhoMoOI5ufIKCO6FjLm3aLIfBGwyMoIK7kCanmiG9mEyR7nwEn9EnsZ0K7lydxfm-_3B-hM4JXhCM6VXbOLWggglygGYECxHjlOSHaIbzPIs5TV6O0UkIW4yHXZrPUPUIrvz-_FIhQFU4MNEQ0XceVFQp7ZsKfFSrujE2tOCDbepI1SbyEDq3s_Vr9NYX3v5ZY5T2vbM6gqpzoxD2RmldFU7RUalcgLPfOUfPN9dPq7t4vbm9Xy3XsWYsJzHTWhgChYAEp4lOuSHa5AyTMgOcKMGZ4kIUzGQUs4KzJOEZ4YRSbkABS9kcXUy5rW_eOwg7uW06Xw8nJaUjPbyfDdTlRA1_huChlK23lfK9JFiOdcqxTrmvc4DJBH9YB_0_pHzYrJeT8wO8e3vj</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Drake, Ian</creator><creator>Cardoen, Gregoire</creator><creator>Hughes, Andrew</creator><creator>Beshah, Kebede</creator><creator>Kearns, Kenneth L.</creator><creator>Zhang, Tianlan</creator><creator>Reffner, John</creator><creator>Wolf, Casey</creator><creator>Even, Ralph</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-0128-4012</orcidid></search><sort><creationdate>20190701</creationdate><title>Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films</title><author>Drake, Ian ; Cardoen, Gregoire ; Hughes, Andrew ; Beshah, Kebede ; Kearns, Kenneth L. ; Zhang, Tianlan ; Reffner, John ; Wolf, Casey ; Even, Ralph</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3381-3cc9d1eb9e4054c56d1cd8301f7e04a963a699b3d7203b634467161226deae353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>acrylic hybrid</topic><topic>Acrylics</topic><topic>composite nano‐foam</topic><topic>Dispersions</topic><topic>Elastomers</topic><topic>Emulsion polymerization</topic><topic>Emulsions</topic><topic>Hybrid systems</topic><topic>Latex</topic><topic>Mechanical properties</topic><topic>nanodispersion</topic><topic>Nanoparticles</topic><topic>Polymerization</topic><topic>polyurea</topic><topic>Polyurethane resins</topic><topic>self‐assembly</topic><topic>Thickness</topic><toplevel>online_resources</toplevel><creatorcontrib>Drake, Ian</creatorcontrib><creatorcontrib>Cardoen, Gregoire</creatorcontrib><creatorcontrib>Hughes, Andrew</creatorcontrib><creatorcontrib>Beshah, Kebede</creatorcontrib><creatorcontrib>Kearns, Kenneth L.</creatorcontrib><creatorcontrib>Zhang, Tianlan</creatorcontrib><creatorcontrib>Reffner, John</creatorcontrib><creatorcontrib>Wolf, Casey</creatorcontrib><creatorcontrib>Even, Ralph</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of polymer science. Part A, Polymer chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Drake, Ian</au><au>Cardoen, Gregoire</au><au>Hughes, Andrew</au><au>Beshah, Kebede</au><au>Kearns, Kenneth L.</au><au>Zhang, Tianlan</au><au>Reffner, John</au><au>Wolf, Casey</au><au>Even, Ralph</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films</atitle><jtitle>Journal of polymer science. Part A, Polymer chemistry</jtitle><date>2019-07-01</date><risdate>2019</risdate><volume>57</volume><issue>13</issue><spage>1373</spage><epage>1388</epage><pages>1373-1388</pages><issn>0887-624X</issn><eissn>1099-0518</eissn><abstract>ABSTRACT
A polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles (<20 nm dispersions, up to 30 wt % aq. soln.). These nanoparticles enabled surfactant‐free emulsion polymerization to form hybrid polyurea‐acrylic particles despite the absence of a measureable water‐soluble fraction. The Tg of the starting PUM material was a strong function of the PUM's extent of neutralization and hydration (varying between 100 °C and >175 °C) due to changes in hydrogen and ionic bonding. Two separate hybrid polyurea‐acrylic emulsion systems were prepared: one by direct polymerization of (meth)acrylic monomers in the presence of the nanodispersion and a second by a physical blend of PUM nanodispersion with an acrylic latex control. The direct polymerization method resulted in a hybrid emulsion particle size that developed by a mechanism resembling conventional emulsion polymerization and was unlike that described for seeded polyurethane dispersion systems. Film hardness was shown to increase with increasing coating thickness for the hybrid film prepared by direct polymerization. The resulting mechanical properties could be explained by applying mechanical models for a composite foam structure. These results were unprecedented for normal elastomer films. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1373–1388
A polyurea macromer was synthesized and dispersed in basic conditions forming self‐assembled nanoparticles. While no water‐soluble fraction was measurable, these particles enabled surfactant‐free emulsion polymerization to form a hybrid acrylic‐polyurea particle capable of film forming at room temperature with properties consistent with a composite closed cell foam structure.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/pola.29391</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-0128-4012</orcidid></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | acrylic hybrid Acrylics composite nano‐foam Dispersions Elastomers Emulsion polymerization Emulsions Hybrid systems Latex Mechanical properties nanodispersion Nanoparticles Polymerization polyurea Polyurethane resins self‐assembly Thickness |
| title | Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films |
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