Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights
To address the practical issues of polymer molecular weight determination, the first accurate polymer weight-average molecular weight determination method in diverse living/controlled polymerization via DOSY (diffusion-ordered NMR spectroscopy) is reported. Based on the linear correlation between th...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Chemical Society (ACS)
2015
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| Online Access: | http://hdl.handle.net/1721.1/94646 https://orcid.org/0000-0001-9157-6491 |
| _version_ | 1811070117863227392 |
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| author | Li, Weibin Chung, Hoyong Daeffler, Chris Johnson, Jeremiah A. Grubbs, Robert H. |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Li, Weibin Chung, Hoyong Daeffler, Chris Johnson, Jeremiah A. Grubbs, Robert H. |
| author_sort | Li, Weibin |
| collection | MIT |
| description | To address the practical issues of polymer molecular weight determination, the first accurate polymer weight-average molecular weight determination method in diverse living/controlled polymerization via DOSY (diffusion-ordered NMR spectroscopy) is reported. Based on the linear correlation between the logarithm of diffusion coefficient (log D) and the molecular weights (log M[subscript w]), external calibration curves were created to give predictions of molecular weights of narrowly dispersed polymers. This method was successfully applied to atom transfer radical polymerization (ATRP), reversible addition–fragmentation chain transfer (RAFT), and ring-opening metathesis polymerization (ROMP), with weight-average molecular weights given by this method closely correlated to those obtained from GPC measurement. |
| first_indexed | 2024-09-23T08:25:34Z |
| format | Article |
| id | mit-1721.1/94646 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:25:34Z |
| publishDate | 2015 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/946462022-09-30T09:17:24Z Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights Li, Weibin Chung, Hoyong Daeffler, Chris Johnson, Jeremiah A. Grubbs, Robert H. Massachusetts Institute of Technology. Department of Chemistry Johnson, Jeremiah A. To address the practical issues of polymer molecular weight determination, the first accurate polymer weight-average molecular weight determination method in diverse living/controlled polymerization via DOSY (diffusion-ordered NMR spectroscopy) is reported. Based on the linear correlation between the logarithm of diffusion coefficient (log D) and the molecular weights (log M[subscript w]), external calibration curves were created to give predictions of molecular weights of narrowly dispersed polymers. This method was successfully applied to atom transfer radical polymerization (ATRP), reversible addition–fragmentation chain transfer (RAFT), and ring-opening metathesis polymerization (ROMP), with weight-average molecular weights given by this method closely correlated to those obtained from GPC measurement. National Institutes of Health (U.S.) (R01 GM031332-28) 2015-02-19T18:31:38Z 2015-02-19T18:31:38Z 2012-12 2012-10 Article http://purl.org/eprint/type/JournalArticle 0024-9297 1520-5835 http://hdl.handle.net/1721.1/94646 Li, Weibin, Hoyong Chung, Chris Daeffler, Jeremiah A. Johnson, and Robert H. Grubbs. “Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights.” Macromolecules 45, no. 24 (December 21, 2012): 9595–9603. https://orcid.org/0000-0001-9157-6491 en_US http://dx.doi.org/10.1021/ma301666x Macromolecules Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) PMC |
| spellingShingle | Li, Weibin Chung, Hoyong Daeffler, Chris Johnson, Jeremiah A. Grubbs, Robert H. Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title | Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title_full | Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title_fullStr | Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title_full_unstemmed | Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title_short | Application of [superscript 1]H DOSY for Facile Measurement of Polymer Molecular Weights |
| title_sort | application of superscript 1 h dosy for facile measurement of polymer molecular weights |
| url | http://hdl.handle.net/1721.1/94646 https://orcid.org/0000-0001-9157-6491 |
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