Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron
The induced self-assembly phenomenon between PEO-b-PAA and Fe(II) was investigated. It was revealed that the electrostatic interaction between Fe(II) in the form of green rust (GR²⁺) particles and the COO- groups from the PAA backbone at pH 7 causes the formation of stable aggregates with Dh~156 nm....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2007
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| Online Access: | http://hdl.handle.net/1721.1/35879 |
| _version_ | 1826197994891902976 |
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| author | Sondjaja, H. Ronny Tam, Michael K.C. Yap, Miranda G.S. Hatton, T. Alan |
| author_facet | Sondjaja, H. Ronny Tam, Michael K.C. Yap, Miranda G.S. Hatton, T. Alan |
| author_sort | Sondjaja, H. Ronny |
| collection | MIT |
| description | The induced self-assembly phenomenon between PEO-b-PAA and Fe(II) was investigated. It was revealed that the electrostatic interaction between Fe(II) in the form of green rust (GR²⁺) particles and the COO- groups from the PAA backbone at pH 7 causes the formation of stable aggregates with Dh~156 nm. While it is stable at pH 7, the induced self-assembly structure, however, is disordered during the transformation of GR²⁺ into Fe₃O₄. The pH increment and the oxidation process itself were found to affect the stability. |
| first_indexed | 2024-09-23T10:57:34Z |
| format | Article |
| id | mit-1721.1/35879 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:57:34Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | mit-1721.1/358792019-04-12T08:35:46Z Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron Sondjaja, H. Ronny Tam, Michael K.C. Yap, Miranda G.S. Hatton, T. Alan PEO-b-PAA Self-Assembly The induced self-assembly phenomenon between PEO-b-PAA and Fe(II) was investigated. It was revealed that the electrostatic interaction between Fe(II) in the form of green rust (GR²⁺) particles and the COO- groups from the PAA backbone at pH 7 causes the formation of stable aggregates with Dh~156 nm. While it is stable at pH 7, the induced self-assembly structure, however, is disordered during the transformation of GR²⁺ into Fe₃O₄. The pH increment and the oxidation process itself were found to affect the stability. Singapore-MIT Alliance (SMA) 2007-02-06T01:10:00Z 2007-02-06T01:10:00Z 2007-01 Article http://hdl.handle.net/1721.1/35879 en Chemical and Pharmaceutical Engineering (CPE) application/pdf |
| spellingShingle | PEO-b-PAA Self-Assembly Sondjaja, H. Ronny Tam, Michael K.C. Yap, Miranda G.S. Hatton, T. Alan Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title | Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title_full | Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title_fullStr | Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title_full_unstemmed | Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title_short | Understanding the Induced Self-Assembly System Between PEO-b-PAA and Iron |
| title_sort | understanding the induced self assembly system between peo b paa and iron |
| topic | PEO-b-PAA Self-Assembly |
| url | http://hdl.handle.net/1721.1/35879 |
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