Title:
METHOD FOR PREPARING POLYLACTONE BY RING OPENING
Document Type and Number:
WIPO Patent Application WO/2018/210106
Kind Code:
A1
Abstract:
The present invention relates to the technical field of organic catalysis and polymer materials, and provides a method for preparing polylactone by ring opening. The present invention provides a novel catalytic mechanism, i.e., using an organic alcohol as an initiator to initiate ring-opening polymerization of a cyclic monomer under catalysis of an organic catalyst to obtain polylactone, the catalyst being a pyridinium salt. The present invention has the advantages of generating no toxins during reaction, simple conditions, and controllable process. Compared with catalysis of 4-(N,N-dimethylamino)pyridine, during solvent-free polymerization, a narrow molecular weight distribution can be obtained, and transesterification can be effectively inhibited.
Inventors:
GUO KAI (CN)
ZHU HUI (CN)
LI ZHENJIANG (CN)
WEI FULAN (CN)
CHEN SIMING (CN)
GAO YU (CN)
ZHU HUI (CN)
LI ZHENJIANG (CN)
WEI FULAN (CN)
CHEN SIMING (CN)
GAO YU (CN)
Application Number:
PCT/CN2018/084180
Publication Date:
November 22, 2018
Filing Date:
April 24, 2018
Export Citation:
Assignee:
UNIV NANJING TECH (CN)
International Classes:
C08G63/08; C08G63/87
Domestic Patent References:
| WO2012049044A2 | 2012-04-19 | |||
| WO2010100390A1 | 2010-09-10 |
Foreign References:
| CN107141457A | 2017-09-08 | |||
| CN103210015A | 2013-07-17 | |||
| CN105367761A | 2016-03-02 | |||
| CN105367760A | 2016-03-02 | |||
| CN104592501A | 2015-05-06 | |||
| JP2015017251A | 2015-01-29 |
Attorney, Agent or Firm:
NANJING ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
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