The Library
N-Heterocyclic Olefins as organocatalysts for polymerization : preparation of well-defined poly(propylene oxide)
Tools
Tools
Tools
Naumann, Stefan, Thomas, Anthony W. and Dove, Andrew P. (2015) N-Heterocyclic Olefins as organocatalysts for polymerization : preparation of well-defined poly(propylene oxide). Angewandte Chemie International Edition, 127 (33). pp. 9686-9690. doi:10.1002/ange.201504175 ISSN 1433-7851.
|
PDF
WRAP_Naumann_et_al-2015-Angewandte_Chemie.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (918Kb) | Preview |
Official URL: http://dx.doi.org/10.1002/ange.201504175
Abstract
The metal-free polymerization of propylene oxide (PO) using a special class of alkene—N-heterocyclic olefins (NHOs)—as catalysts is described. Manipulation of the chemical structure of the NHO organocatalyst allows for the preparation of the poly(propylene oxide) in high yields with high turnover (TON>2000), which renders this the most active metal-free system for the polymerization of PO reported to date. The resulting polyether displays predictable end groups, molar mass, and a low dispersity (ĐM<1.09). NHOs with an unsaturated backbone are essential for polymerization to occur, while substitution at the exocyclic carbon atom has an impact on the reaction pathway and ensures the suppression of side reactions.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
| Library of Congress Subject Headings (LCSH): | Ring-opening polymerization | ||||||||
| Journal or Publication Title: | Angewandte Chemie International Edition | ||||||||
| Publisher: | Wiley | ||||||||
| ISSN: | 1433-7851 | ||||||||
| Official Date: | 10 August 2015 | ||||||||
| Dates: |
|
||||||||
| Volume: | 127 | ||||||||
| Number: | 33 | ||||||||
| Number of Pages: | 5 | ||||||||
| Page Range: | pp. 9686-9690 | ||||||||
| DOI: | 10.1002/ange.201504175 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 28 July 2016 | ||||||||
| Date of first compliant Open Access: | 28 July 2016 |
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
Downloads
Downloads per month over past year
