| NSF Org: |
CHE Division Of Chemistry |
| Recipient: |
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| Initial Amendment Date: | August 16, 2010 |
| Latest Amendment Date: | August 16, 2010 |
| Award Number: | 1012464 |
| Award Instrument: | Standard Grant |
| Program Manager: |
George Janini
CHE Division Of Chemistry MPS Directorate for Mathematical and Physical Sciences |
| Start Date: | September 1, 2010 |
| End Date: | April 30, 2015 (Estimated) |
| Total Intended Award Amount: | $510,000.00 |
| Total Awarded Amount to Date: | $510,000.00 |
| Funds Obligated to Date: |
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| History of Investigator: |
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| Recipient Sponsored Research Office: |
1 SILBER WAY BOSTON MA US 02215-1703 (617)353-4365 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
1 SILBER WAY BOSTON MA US 02215-1703 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | Macromolec/Supramolec/Nano |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.049 |
ABSTRACT
TECHNICAL SUMMARY:
Two of the current goals in supramolecular chemistry are the development of new synthetic strategies to supramolecular assemblies and the creation of assemblies with unique and controllable properties. The PI and his group are using multi-cationic and multi-anionic molecules to prepare supramolecular network materials via electrostatic interactions. The PI proposes a detailed mechanistic study to characterize and understand the underlying supramolecular chemistry principles at work. Specifically, he and his group will synthesize new dicationic phosphoniums, prepare supramolecular ionic networks by mixing the dicationic phosphoniums with various small molecule and macromolecular anions, characterize the rheological properties of these ionic networks, and subsequently model the rheological properties with the financial support from the Macromolecular, Supramolecular, and Nanochemistry Program in the Division of Chemistry at the National Science Foundation. These studies address the hypothesis that this approach to supramolecular materials will result in unique compositions and properties. The results of this research will have a significant impact by affording a detailed mechanistic understanding of this type of supramolecular assembly along with collection of robust data for analysis, discussion, and further hypothesis generation.
NON-TECHNICAL SUMMARY:
The creation of new materials is fundamental to the advancement of science as this research leads to new ideas, unique properties, and new applications. With the financial support from the Macromolecular, Supramolecular, and Nanochemistry Program in the Division of Chemistry at the National Science Foundation, this research project will investigate a new approach to materials that are "salts" but not crystalline materials like table salt, NaCl. Instead these materials behave like polymers or plastics. On the education front, the two educational impacts from this funding are: 1) the participation of undergraduates in the research program so they can gain experience; and 2) the participation of graduate students in the Boston Urban Fellow NSF GK12 outreach program which provides co-instructors for high school science courses in those Boston Public School systems where a majority of the students are underrepresented minorities or economically disadvantaged.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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PROJECT OUTCOMES REPORT
Disclaimer
This Project Outcomes Report for the General Public is displayed verbatim as submitted by the Principal Investigator (PI) for this award. Any opinions, findings, and conclusions or recommendations expressed in this Report are those of the PI and do not necessarily reflect the views of the National Science Foundation; NSF has not approved or endorsed its content.
The creation of new materials is fundamental to the advancement of science as this research leads to new ideas, unique properties, and new applications. This proposal investigated a new approach to materials that are “salts” but not crystalline materials like table salt, NaCl. Instead these supramolecular materials behave like polymers or plastics, and have unusual properties as a salt. For example, some of these supramolecular materials are viscous or viscoelastic. To synthesize these supramolecular materials, we used multi-cationic phosphonium and multi-anionic compounds. Importantly, these materials are held together through electrostatic charges and, thus, may be conductive. Our studies revealed that these new materials may have applications in the electronics area, and studies will continue in this area. The approach developed herein distinguishes itself from the conventional approaches to supramolecular materials using hydrogen and metal-ligand bonding, and provides a general synthetic method to scientists and engineers working in this area. On the education front, the two educational impacts from this funding were: 1) the participation of undergraduates in the research program so they can gain experience; and 2) the participation of graduate students in the Boston Urban Fellow NSF GK12 outreach program which provides co-instructors for high school science courses in Boston Public School systems where a majority of the students are underrepresented minorities or economically disadvantaged.
Last Modified: 06/03/2015
Modified by: Mark W Grinstaff
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