The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
Kinetics and Mechanism of l-Lactide Polymerization Using Two Different Yttrium Alkoxides as Initiators
Abstract
Polymerization of l -lactide in dichloromethane at 25 °C using an initiating system comprising tris(2,6-di- tert -butylphenoxy)yttrium and 2-propanol was first order in monomer and initiator. A propagation rate constant of 1.92 × 10 3 L mol -1 min -1 was determined using in situ UV spectroscopy. In the first step the large 2,6-di- tert -butylphenoxy ligands are exchanged for the sterically less demanding 2-propoxide ligands. In the second step the alkoxide is able to attack the carbonyl group with formation of the ring-opened product. After the first two initiating steps the polymerization can proceed until the equilibrium conversion of monomer is reached. Evidence for these three steps is provided by 1 H and 13 C NMR spectroscopy of the reaction products of each step. The kinetic behavior of commercially available yttrium isopropoxide was more complicated.
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.
Integrity signals
Registry
Cites
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.
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
Shannon, R. D. (1976) · Acta Crystallographica Section A · doi:10.1107/s0567739476001551 · Cited by 66,145
Kricheldorf, H. R., Berl, M., & Scharnagl, N. (1988) · Macromolecules · doi:10.1021/ma00180a002 · Cited by 597
Polylactones, 19. Anionic polymerization of L‐lactide in solution
Kricheldorf, H. R., & Kreiser‐Saunders, I. (1990) · Die Makromolekulare Chemie · doi:10.1002/macp.1990.021910508 · Cited by 149
Jedliński, Z., Wałach, W., Kurcok, P., & Adamus, G. (1991) · Die Makromolekulare Chemie · doi:10.1002/macp.1991.021920914 · Cited by 116
Barakat, I., Dubois, P., Jerome, R., & Teyssie, P. (1991) · Macromolecules · doi:10.1021/ma00024a029 · Cited by 73
Highly reactive yttrium alkoxide as new initiator for the polymerization of β‐butyrolactone
Borgne, A. L., Pluta, C., & Spassky, N. (1994) · Macromolecular Rapid Communications · doi:10.1002/marc.1994.030151208 · Cited by 72
Cited by
Controlled Ring-Opening Polymerization of Lactide and Glycolide
Dechy-Cabaret, O., Martin-Vaca, B., & Bourissou, D. (2004) · Chemical Reviews · doi:10.1021/cr040002s · Cited by 2,257
Recent Developments in Ring Opening Polymerization of Lactones for Biomedical Applications
Albertsson, A.-C., & Varma, I. K. (2003) · Biomacromolecules · doi:10.1021/bm034247a · Cited by 1,582
Polymerization of lactide and related cyclic esters by discrete metal complexes
O'Keefe, B. J., Hillmyer, M. A., & Tolman, W. B. (2001) · Journal of the Chemical Society, Dalton Transactions · doi:10.1039/b104197p · Cited by 825
Biocompatible Initiators for Lactide Polymerization
Platel, R., Hodgson, L., & Williams, C. (2008) · Polymer Reviews · doi:10.1080/15583720701834166 · Cited by 706
Synthesis of biodegradable polymers from renewable resources
Tschan, M. J.-L., Brulé, E., Haquette, P., & Thomas, C. M. (2012) · Polym. Chem. · doi:10.1039/c2py00452f · Cited by 428
Degradable Polymer Microspheres for Controlled Drug Delivery
Edlund, U., & Albertsson, A. C. (2002) · Advances in Polymer Science · doi:10.1007/3-540-45734-8_3 · Cited by 416
Controlled Ring-Opening Polymerization: Polymers with designed Macromolecular Architecture
Stridsberg, K. M., Ryner, M., & Albertsson, A.-C. (2002) · Advances in Polymer Science · doi:10.1007/3-540-45734-8_2 · Cited by 375
Kissel, T., Li, Y., & Unger, F. (2002) · Advanced Drug Delivery Reviews · doi:10.1016/s0169-409x(01)00244-7 · Cited by 332
Mecerreyes, D., Jérôme, R., & Dubois, P. (2007) · Advances in Polymer Science · doi:10.1007/3-540-49196-1_1 · Cited by 272
Polymerization of l,l-Dilactide Initiated by Tin(II) Butoxide
Kowalski, A., Libiszowski, J., Duda, A., & Penczek, S. (2000) · Macromolecules · doi:10.1021/ma991751s · Cited by 272
Chen, H.-Y., Tang, H.-Y., & Lin, C.-C. (2006) · Macromolecules · doi:10.1021/ma060471r · Cited by 270
Chen, H.-Y., Huang, B.-H., & Lin, C.-C. (2005) · Macromolecules · doi:10.1021/ma050672f · Cited by 166
Martin, E., Dubois, P., & Jérôme, R. (2000) · Macromolecules · doi:10.1021/ma991045r · Cited by 144
Syntheses of Biodegradable and Biocompatible Polymers by Means of Bismuth Catalysts
Kricheldorf, H. R. (2009) · Chemical Reviews · doi:10.1021/cr900029e · Cited by 121
Ling, J., Shen, J., & Hogen-Esch, T. E. (2009) · Polymer · doi:10.1016/j.polymer.2009.06.006 · Cited by 58
Initiation of ring-opening polymerization of lactide: The effect of metal alkoxide catalyst
Cheshmedzhieva, D., Angelova, I., Ilieva, S., Georgiev, G. S., & Galabov, B. (2012) · Computational and Theoretical Chemistry · doi:10.1016/j.comptc.2012.06.015 · Cited by 27
Stephen, R., Sunoj, R. B., & Ghosh, P. (2011) · Dalton Transactions · doi:10.1039/c1dt10345h · Cited by 23
Tin (IV) alkoxide initiator design for poly (d-lactide) synthesis using DFT calculations
Lawan, N., Muangpil, S., Kungwan, N., Meepowpan, P., Lee, V. S., & Punyodom, W. (2013) · Computational and Theoretical Chemistry · doi:10.1016/j.comptc.2013.07.045 · Cited by 15
Spassky, N., Simic, V., Hubert‐Pfalzgraf, L. G., & Montaudo, M. S. (1999) · Macromolecular Symposia · doi:10.1002/masy.19991440123 · Cited by 14
Martin, E., Dubois, P., & Jerome, R. (2003) · Journal of Polymer Science Part A: Polymer Chemistry · doi:10.1002/pola.10608 · Cited by 13
Metadata
- Authors
- Stevels, W. M., Ankoné, Dijkstra, P. J., & Feijen, J.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-01-01
- Volume
- 29
- Issue
- 19
- Pages
- 6132-6138
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2083282609
- Cited by
- 158
- References
- 6
- FWCI
- 3.63
- 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.
