Student or educator? Sign up with your school email and get 6 months of Pro free.
CoChat
Sign Up
Cited by 273

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Phosphazene Bases: A New Category of Organocatalysts for the Living Ring-Opening Polymerization of Cyclic Esters

Zhang, Lei, Nederberg, Fredrik, Pratt, Russell C., Waymouth, Robert M., Hedrick, James L., Wade, Charles G.·2007·Macromolecules
DOI 10.1021/ma070316s
Open this paper in CoChat — free account

Abstract

We demonstrate that phosphazene bases, such as 2- tert -butylimino-2-diethylamino-1,3-dimethylperhydro-1,3,2-diazaphosphorine (BEMP) and N ‘- tert -butyl- N,N, N ‘, N ‘, N ‘ ‘, N ‘ ‘-hexamethylphosphorimidic triamide (P 1 - t -Bu), are active organocatalysts for the living ring-opening polymerization (ROP) of cyclic esters. Polyesters prepared through this organocatalytic route possess predictable molecular weights, narrow polydispersities, and high end-group fidelity. Mechanistic studies suggest that the intermolecular hydrogen bonding of the alcohol initiator to phosphazene bases activates the alcohol for ROP of cyclic esters.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1021/ma070316s

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Research works printed but not linked: 36

  1. Scheirs J., 2003, Modern Polyesters: Chemistry and Technology of Polyesters and Copolyesters
  2. Ree M., 2006, J. Mater. Chem., 16, 697
  3. Li M., 2005, Adv. Polym. Sci., 190, 226
  4. Ueda H., 2003, Adv. Drug Delivery Rev., 55, 518, 10.1016/S0169-409X(03)00037-1 · DOI
  5. Nederberg F., 2001, Angew. Chem., Int. Ed., 40, 2715, 10.1002/1521-3773(20010716)40:14<2712::AID-ANIE2712>3.0.CO;2-Z · DOI · Paper page
  6. Myers M., 2002, J. Polym. Sci., Part A: Polym. Chem., 40, 851, 10.1002/pola.10168 · DOI
  7. Connor E. F., 2002, J. Am. Chem. Soc., 124, 915
  8. Nyce G. W., 2003, J. Am. Chem. Soc., 125, 3056
  9. Coulembier O., 2005, Angew. Chem., Int. Ed., 44, 4968, 10.1002/anie.200500723 · DOI
  10. Coulembier O., 2006, Macromolecules, 39, 5628
  11. Coulembier O., 2006, Macromolecules, 39, 4008
  12. Csihony S., 2005, J. Am. Chem. Soc., 127, 9084, 10.1021/ja050909n · DOI
  13. Dove A. P., 2005, J. Am. Chem. Soc., 127, 13799
  14. Pratt R. C., 2006, Macromolecules, 39, 7871, 10.1021/ma061607o · DOI · Paper page
  15. Lohmeijer B. G. G., 2006, Macromolecules, 39, 8583
  16. Pratt R. C., 2006, J. Am. Chem. Soc., 128, 4557, 10.1021/ja060662+ · DOI · Paper page
  17. Schwesinger R., 1985, Chimia, 39, 272
  18. Schwesinger R., 1987, Angew. Chem., Int. Ed., 26, 1169, 10.1002/anie.198711691 · DOI
  19. Schwesinger R., 1994, Chem. Ber., 127, 2454, 10.1002/cber.19941271215 · DOI · Paper page
  20. Lee Y.-J., 2005, Org. Lett., 7, 3209
  21. Bensa D., 2004, Synthesis, 6, 927
  22. Lee J., 2005, J. Org. Chem., 70, 4161
  23. Mitchell J. M., 2006, Angew. Chem., Int. Ed., 45, 1726, 10.1002/anie.200503341 · DOI
  24. Wack H., 2001, J. Am. Chem. Soc., 123, 1532, 10.1021/ja005791j · DOI
  25. Taggi A. E., 2002, J. Am. Chem. Soc., 124, 6635, 10.1021/ja0258226 · DOI
  26. Schuchardt U., 1998, J. Braz. Chem. Soc., 9, 210, 10.1590/S0103-50531998000300002 · DOI · Paper page
  27. Kricheldorf H. R., 1992, Polymer, 33, 2824
  28. Kasperczyk J. E., 1995, Macromolecules, 28, 3939, 10.1021/ma00115a028 · DOI
  29. Zhong Z., 2003, J. Am. Chem. Soc., 125, 11298
  30. Zell M. T., 2002, J. Macromolecules, 35, 7707
  31. Bosman A. W., 2003, J. Am. Chem. Soc., 125, 728, 10.1021/ja028392s · DOI · Paper page
  32. Hawker C. J., 2001, Chem. Rev., 101, 3688, 10.1021/cr990119u · DOI
  33. Thang S. H., 1999, Tetrahedron Lett., 40, 2438, 10.1016/S0040-4039(99)00177-X · DOI
  34. Chiefari J., 1998, Macromolecules, 31, 5562, 10.1021/ma9804951 · DOI
  35. Movassaghi M., 2005, Org. Lett., 7, 2456
  36. Kaljurand I., 2005, J. Org. Chem., 70, 1028, 10.1021/jo048252w · DOI · Paper page

Cited by

See all 273

Metadata

Authors
Zhang, L., Nederberg, F., Pratt, R. C., Waymouth, R. M., Hedrick, J. L., & Wade, C. G.
Venue
Macromolecules
Publisher
American Chemical Society (ACS)
Published
2007-05-19
Volume
40
Issue
12
Pages
4154-4158
ISSN
  • 0024-9297 (ISSN-L)
  • 1520-5835
DOI
10.1021/ma070316s
OpenAlex
W1994372874
Cited by
273
References
2
FWCI
5.62
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.