Controlling the Internal Structures of Polymeric Microspheres via the Introduction of a Water-Soluble Organic Solvent
Polymeric microspheres with different internal structures have been widely used because of their characteristics in the structures. This paper reports a method of controlling the internal structures of polymeric microspheres via the introduction of a water-soluble organic solvent to the continuous p...
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| Veröffentlicht in: | Polymers 2018-07, Vol.10 (7), p.789 |
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| creator | He, Yanping Li, Xin Zhu, Tianci Shan, Mengxing Zhu, Linhua Si, Tian Wang, Hong Sun, Yanlin |
| description | Polymeric microspheres with different internal structures have been widely used because of their characteristics in the structures. This paper reports a method of controlling the internal structures of polymeric microspheres via the introduction of a water-soluble organic solvent to the continuous phase in the foam phase preparation of porous polymeric microspheres. The introduction of a water-soluble organic solvent enables the control of polymeric microspheres' internal structures, from porous to hollow. Because a water-soluble organic solvent is introduced, the organic solvent may be diffused toward the interface because of the affinity between the organic solvent and the oil droplets, resulting an accumulation of organic solvent molecules at the interface to form an organic solvent layer. The presence of this layer may decrease the evaporation rate of the internal organic solvent in an oil droplet, which extends the time for the mingling of porogen droplets to form a few large pores or even an extremely large single pore inside. This method is also capable of altering the thickness of hollow microspheres' shells in a desired way, with improved efficiency, yield and the capacity for continuous use on an industrial scale. |
| doi_str_mv | 10.3390/polym10070789 |
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This paper reports a method of controlling the internal structures of polymeric microspheres via the introduction of a water-soluble organic solvent to the continuous phase in the foam phase preparation of porous polymeric microspheres. The introduction of a water-soluble organic solvent enables the control of polymeric microspheres' internal structures, from porous to hollow. Because a water-soluble organic solvent is introduced, the organic solvent may be diffused toward the interface because of the affinity between the organic solvent and the oil droplets, resulting an accumulation of organic solvent molecules at the interface to form an organic solvent layer. The presence of this layer may decrease the evaporation rate of the internal organic solvent in an oil droplet, which extends the time for the mingling of porogen droplets to form a few large pores or even an extremely large single pore inside. This method is also capable of altering the thickness of hollow microspheres' shells in a desired way, with improved efficiency, yield and the capacity for continuous use on an industrial scale.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym10070789</identifier><identifier>PMID: 30960713</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Aqueous solutions ; Communication ; Conflicts of interest ; Droplets ; Evaporation rate ; Microspheres ; Morphology ; Particle size ; Polymers ; Polyvinyl alcohol ; Science ; Solvent extraction processes ; Solvents ; Thickness ; Water chemistry</subject><ispartof>Polymers, 2018-07, Vol.10 (7), p.789</ispartof><rights>2018. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2018 by the authors. 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c345t-a18684a684fac61adf4fe9277e95933d302afe6596b49df88d8e25ee935ea5fa3</citedby><cites>FETCH-LOGICAL-c345t-a18684a684fac61adf4fe9277e95933d302afe6596b49df88d8e25ee935ea5fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404059/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404059/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30960713$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>He, Yanping</creatorcontrib><creatorcontrib>Li, Xin</creatorcontrib><creatorcontrib>Zhu, Tianci</creatorcontrib><creatorcontrib>Shan, Mengxing</creatorcontrib><creatorcontrib>Zhu, Linhua</creatorcontrib><creatorcontrib>Si, Tian</creatorcontrib><creatorcontrib>Wang, Hong</creatorcontrib><creatorcontrib>Sun, Yanlin</creatorcontrib><title>Controlling the Internal Structures of Polymeric Microspheres via the Introduction of a Water-Soluble Organic Solvent</title><title>Polymers</title><addtitle>Polymers (Basel)</addtitle><description>Polymeric microspheres with different internal structures have been widely used because of their characteristics in the structures. 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This method is also capable of altering the thickness of hollow microspheres' shells in a desired way, with improved efficiency, yield and the capacity for continuous use on an industrial scale.</description><subject>Aqueous solutions</subject><subject>Communication</subject><subject>Conflicts of interest</subject><subject>Droplets</subject><subject>Evaporation rate</subject><subject>Microspheres</subject><subject>Morphology</subject><subject>Particle size</subject><subject>Polymers</subject><subject>Polyvinyl alcohol</subject><subject>Science</subject><subject>Solvent extraction processes</subject><subject>Solvents</subject><subject>Thickness</subject><subject>Water chemistry</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpdkU1r3DAQhkVJacI2x16LoZdc3Mr6snUplCVNAikJJCFHMWuPdhW00layF_LvK5MPkgqERswz7yvNEPKlod851_THLvrHbUNpS9tOfyBHjLa8FlzRgzfxITnO-YGWJaRSTfuJHHKqFW0bfkSmZQxjit67sK7GDVYXYcQUwFc3Y5r6cUqYq2ir69kJk-urP65PMe82OGf2Dl6qUhwK72KYcajuoejUN9FPK4_VVVpDKMXlvscwfiYfLfiMx8_ngtz9Pr1dnteXV2cXy1-Xdc-FHGtoOtUJKNtCrxoYrLCoWduilprzgVMGFpXUaiX0YLtu6JBJRM0lgrTAF-Tnk-5uWm1x6It1Am92yW0hPZoIzrzPBLcx67g3SlBBi8eCnDwLpPh3wjyarcs9eg8B45QNY1QxJqRkBf32H_oQp7mThWqY4lrLdqbqJ2puYk5oXx_TUDPP1LybaeG_vv3BK_0yQf4PlE6gQw</recordid><startdate>20180718</startdate><enddate>20180718</enddate><creator>He, Yanping</creator><creator>Li, Xin</creator><creator>Zhu, Tianci</creator><creator>Shan, Mengxing</creator><creator>Zhu, Linhua</creator><creator>Si, Tian</creator><creator>Wang, Hong</creator><creator>Sun, Yanlin</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20180718</creationdate><title>Controlling the Internal Structures of Polymeric Microspheres via the Introduction of a Water-Soluble Organic Solvent</title><author>He, Yanping ; 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This paper reports a method of controlling the internal structures of polymeric microspheres via the introduction of a water-soluble organic solvent to the continuous phase in the foam phase preparation of porous polymeric microspheres. The introduction of a water-soluble organic solvent enables the control of polymeric microspheres' internal structures, from porous to hollow. Because a water-soluble organic solvent is introduced, the organic solvent may be diffused toward the interface because of the affinity between the organic solvent and the oil droplets, resulting an accumulation of organic solvent molecules at the interface to form an organic solvent layer. The presence of this layer may decrease the evaporation rate of the internal organic solvent in an oil droplet, which extends the time for the mingling of porogen droplets to form a few large pores or even an extremely large single pore inside. 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| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; PubMed Central; PubMed Central Open Access |
| subjects | Aqueous solutions Communication Conflicts of interest Droplets Evaporation rate Microspheres Morphology Particle size Polymers Polyvinyl alcohol Science Solvent extraction processes Solvents Thickness Water chemistry |
| title | Controlling the Internal Structures of Polymeric Microspheres via the Introduction of a Water-Soluble Organic Solvent |
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