The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes
Complex coacervation is an electrostatically-driven phase separation phenomenon that is utilized in a wide range of everyday applications and is of great interest for the creation of self-assembled materials. Here, we utilized turbidity to characterize the effect of salt type on coacervate formation...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-06-01
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| Series: | Polymers |
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| Online Access: | http://www.mdpi.com/2073-4360/6/6/1756 |
| _version_ | 1811310401905754112 |
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| author | Sarah L. Perry Yue Li Dimitrios Priftis Lorraine Leon Matthew Tirrell |
| author_facet | Sarah L. Perry Yue Li Dimitrios Priftis Lorraine Leon Matthew Tirrell |
| author_sort | Sarah L. Perry |
| collection | DOAJ |
| description | Complex coacervation is an electrostatically-driven phase separation phenomenon that is utilized in a wide range of everyday applications and is of great interest for the creation of self-assembled materials. Here, we utilized turbidity to characterize the effect of salt type on coacervate formation using two vinyl polyelectrolytes, poly(acrylic acid sodium salt) (pAA) and poly(allylamine hydrochloride) (pAH), as simple models for industrial and biological coacervates. We confirmed the dominant role of salt valence on the extent of coacervate formation, while demonstrating the presence of significant secondary effects, which can be described by Hofmeister-like behavior. These results revealed the importance of ion-specific interactions, which are crucial for the informed design of coacervate-based materials for use in complex ionic environments, and can enable more detailed theoretical investigations on the role of subtle electrostatic and thermodynamic effects in complex coacervation. |
| first_indexed | 2024-04-13T09:59:19Z |
| format | Article |
| id | doaj.art-1fdea72d18f14f1fbc45ab9e847bf603 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-13T09:59:19Z |
| publishDate | 2014-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-1fdea72d18f14f1fbc45ab9e847bf6032022-12-22T02:51:17ZengMDPI AGPolymers2073-43602014-06-01661756177210.3390/polym6061756polym6061756The Effect of Salt on the Complex Coacervation of Vinyl PolyelectrolytesSarah L. Perry0Yue Li1Dimitrios Priftis2Lorraine Leon3Matthew Tirrell4Institute for Molecular Engineering, University of Chicago, 5747 South Ellis Avenue, Jones 222, Chicago, IL 60637, USAInstitute for Molecular Engineering, University of Chicago, 5747 South Ellis Avenue, Jones 222, Chicago, IL 60637, USAInstitute for Molecular Engineering, University of Chicago, 5747 South Ellis Avenue, Jones 222, Chicago, IL 60637, USAInstitute for Molecular Engineering, University of Chicago, 5747 South Ellis Avenue, Jones 222, Chicago, IL 60637, USAInstitute for Molecular Engineering, University of Chicago, 5747 South Ellis Avenue, Jones 222, Chicago, IL 60637, USAComplex coacervation is an electrostatically-driven phase separation phenomenon that is utilized in a wide range of everyday applications and is of great interest for the creation of self-assembled materials. Here, we utilized turbidity to characterize the effect of salt type on coacervate formation using two vinyl polyelectrolytes, poly(acrylic acid sodium salt) (pAA) and poly(allylamine hydrochloride) (pAH), as simple models for industrial and biological coacervates. We confirmed the dominant role of salt valence on the extent of coacervate formation, while demonstrating the presence of significant secondary effects, which can be described by Hofmeister-like behavior. These results revealed the importance of ion-specific interactions, which are crucial for the informed design of coacervate-based materials for use in complex ionic environments, and can enable more detailed theoretical investigations on the role of subtle electrostatic and thermodynamic effects in complex coacervation.http://www.mdpi.com/2073-4360/6/6/1756complex coacervationpolyelectrolyte complexionic strengthmultivalentcharge densitypoly(acrylic acid)poly(allylamine) |
| spellingShingle | Sarah L. Perry Yue Li Dimitrios Priftis Lorraine Leon Matthew Tirrell The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes Polymers complex coacervation polyelectrolyte complex ionic strength multivalent charge density poly(acrylic acid) poly(allylamine) |
| title | The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes |
| title_full | The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes |
| title_fullStr | The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes |
| title_full_unstemmed | The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes |
| title_short | The Effect of Salt on the Complex Coacervation of Vinyl Polyelectrolytes |
| title_sort | effect of salt on the complex coacervation of vinyl polyelectrolytes |
| topic | complex coacervation polyelectrolyte complex ionic strength multivalent charge density poly(acrylic acid) poly(allylamine) |
| url | http://www.mdpi.com/2073-4360/6/6/1756 |
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