Title:
METHOD FOR CATALYTICALLY PREPARING VINYL ETHER POLYMER
Document Type and Number:
WIPO Patent Application WO/2022/151797
Kind Code:
A1
Abstract:
A method for preparing a high tacticity vinyl ether polymer by means of catalytic polymerization, which relates to the technical field of polymer preparation. By means of the method for catalytically preparing a high tacticity vinyl ether polymer, a cationic polymerization reaction is carried out on one or more vinyl ether monomers under the action of a catalyst in a protective atmosphere to obtain the high tacticity vinyl ether polymer. By means of the method, polymerization is initiated by active cations generated by reacting imino phosphamide and vinyl isobutyl ether, and controllable polymerization can be achieved by the interaction of imino phosphamide anions with the active cations at the chain end, thereby providing a feasible method for preparing a vinyl ether polymer with controllable molecular weight distribution. The catalyst used in the method is an organic catalyst for efficiently preparing a high tacticity polymer, and the reaction system is simple and does not require an additional Lewis acid or alkali to be added, so that the method has many advantages such as being environmentally friendly and having easy operation.
Inventors:
LIAO SAIHU (CN)
ZHANG XUN (CN)
ZHANG XUN (CN)
Application Number:
PCT/CN2021/127059
Publication Date:
July 21, 2022
Filing Date:
October 28, 2021
Export Citation:
Assignee:
UNIV FUZHOU (CN)
International Classes:
C07F9/6574; C08F16/18; C08F4/00; C08F16/12; C08F116/18; C08F216/20
Domestic Patent References:
| WO2020037163A1 | 2020-02-20 |
Foreign References:
| CN102858787A | 2013-01-02 | |||
| CN107922449A | 2018-04-17 |
Other References:
KNUTSON PHIL C., TEATOR AARON J., VARNER TRAVIS P., KOZUSZEK CALEB T., JACKY PAIGE E., LEIBFARTH FRANK A.: "Brønsted Acid Catalyzed Stereoselective Polymerization of Vinyl Ethers", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 143, no. 40, 13 October 2021 (2021-10-13), pages 16388 - 16393, XP055950926, ISSN: 0002-7863, DOI: 10.1021/jacs.1c08282
L SCHREYER, ROBERTA PROPERZI, AND BENJAMIN LIST: "IDPi Catalysis", ANGEW. CHEM. INT. ED., 6 March 2019 (2019-03-06), pages 1 - 19, XP055603984, Retrieved from the Internet [retrieved on 20190710], DOI: 10.1002/anie.201900932
L SCHREYER, ROBERTA PROPERZI, AND BENJAMIN LIST: "IDPi Catalysis", ANGEW. CHEM. INT. ED., 6 March 2019 (2019-03-06), pages 1 - 19, XP055603984, Retrieved from the Internet
Attorney, Agent or Firm:
ZHEJIANG KG IP LAW FIRM (CN)
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