Title:
RING OPENING POLYMERIZATION METHOD FOR CYCLIC MONOMER
Document Type and Number:
WIPO Patent Application WO/2021/243870
Kind Code:
A1
Abstract:
The present invention belongs to the field of organic synthesis, and specifically relates to a ring opening polymerization method for a cyclic monomer. A specific solution is to catalyze the ring opening polymerization of a cyclic monomer by using a Lewis acid-base pair in the presence of an initiator. By use of a Lewis acid-base pair as a catalyst, the range of catalysts for ring opening polymerization is expanded, and the catalyst has the characteristics of a high catalytic efficiency and being milder compared with a strong acid or strong base catalyst reported previously. The present catalytic system activates the monomer and activates the initiator or chain end at the same time by means of a bifunctional activation mechanism, and has the characteristic of being highly efficient compared with a reported monomer activation mechanism or chain end activation mechanism. By using the catalyst, a polyester product with a target molecular weight can be synthesized in a controlled manner as required. The molecular weight distribution index is relatively narrow, the product yield is high, the product conversion rate is high, and there is no monomer or metal residue.
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Inventors:
GUO KAI (CN)
YAO ZHIWEI (CN)
LI ZHENJIANG (CN)
ZHANG CHAN (CN)
ZHU YUEJIA (CN)
ZHANG LEI (CN)
LUO ZIKUN (CN)
YAO ZHIWEI (CN)
LI ZHENJIANG (CN)
ZHANG CHAN (CN)
ZHU YUEJIA (CN)
ZHANG LEI (CN)
LUO ZIKUN (CN)
Application Number:
PCT/CN2020/113870
Publication Date:
December 09, 2021
Filing Date:
September 08, 2020
Export Citation:
Assignee:
UNIV NANJING TECH (CN)
International Classes:
C08G63/87; C08G63/08; C08G63/84; C08G64/30; C08G65/04
Foreign References:
| CN111592644A | 2020-08-28 | |||
| CN105153408A | 2015-12-16 | |||
| CN109851764A | 2019-06-07 | |||
| CN104530393A | 2015-04-22 | |||
| JP2007137871A | 2007-06-07 |
Other References:
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YAN MINGFA,WANG TAO,HUANG YONGKAI,QIANG NA,QUAN DAPING: "Ring-Opening Polymerization of Lactone in the Presence of Benzyl Alcohol Catalyzed by Aliphatic Tertiary Amine", ACTA POLYMERICA SINICA, no. 11, 20 November 2011 (2011-11-20), pages 1231 - 1236, XP055878099, ISSN: 1000-3304, DOI: 10.3724/SP.J.1105.2011.10292
XU JIAXI; LIU JINGJING; LI ZHENJIANG; WANG HAIXIN; XU SONGQUAN; GUO TIANFO; ZHU HUI; WEI FULAN; ZHU YUEJIA; GUO KAI: "Guanidinium as bifunctional organocatalyst for ring-opening polymerizations", POLYMER, vol. 154, 1 September 2018 (2018-09-01), pages 17 - 26, XP085493634, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2018.08.074
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KANAZAWA ARIHIRO, AOSHIMA SADAHITO: "Cationic Terpolymerization of Vinyl Ethers, Oxetane, and Ketones via Concurrent Vinyl-Addition, Ring-Opening, and Carbonyl-Addition Mechanisms: Multiblock Polymer Synthesis and Mechanistic Investigation", MACROMOLECULES, vol. 50, no. 17, 12 September 2017 (2017-09-12), pages 6595 - 6605, XP055878087, ISSN: 1520-5835, DOI: 10.1021/acs.macromol.7b01250
YAN MINGFA,WANG TAO,HUANG YONGKAI,QIANG NA,QUAN DAPING: "Ring-Opening Polymerization of Lactone in the Presence of Benzyl Alcohol Catalyzed by Aliphatic Tertiary Amine", ACTA POLYMERICA SINICA, no. 11, 20 November 2011 (2011-11-20), pages 1231 - 1236, XP055878099, ISSN: 1000-3304, DOI: 10.3724/SP.J.1105.2011.10292
XU JIAXI; LIU JINGJING; LI ZHENJIANG; WANG HAIXIN; XU SONGQUAN; GUO TIANFO; ZHU HUI; WEI FULAN; ZHU YUEJIA; GUO KAI: "Guanidinium as bifunctional organocatalyst for ring-opening polymerizations", POLYMER, vol. 154, 1 September 2018 (2018-09-01), pages 17 - 26, XP085493634, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2018.08.074
KESSAR SATINDER V., SINGH PARAMJIT: "Lewis Acid Complexation of Tertiary Amines and Related Compounds: A Strategy for α-Deprotonation and Stereocontrol", CHEMICAL REVIEWS, vol. 97, no. 3, 8 May 1997 (1997-05-08), pages 721 - 738, XP055878092, ISSN: 0009-2665, DOI: 10.1021/cr950082n
KANAZAWA ARIHIRO, AOSHIMA SADAHITO: "Cationic Terpolymerization of Vinyl Ethers, Oxetane, and Ketones via Concurrent Vinyl-Addition, Ring-Opening, and Carbonyl-Addition Mechanisms: Multiblock Polymer Synthesis and Mechanistic Investigation", MACROMOLECULES, vol. 50, no. 17, 12 September 2017 (2017-09-12), pages 6595 - 6605, XP055878087, ISSN: 1520-5835, DOI: 10.1021/acs.macromol.7b01250
Attorney, Agent or Firm:
NANJING ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
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