Title:
METHOD FOR SYNTHESIZING BIODEGRADABLE POLY(SUCCINIC ACID-CO-BUTYLENE TEREPHTHALATE) CATALYZED BY ORGANIC GUANIDINE
Document Type and Number:
WIPO Patent Application WO/2019/062599
Kind Code:
A1
Abstract:
A method for synthesizing biodegradable poly(succinic acid-co-butylene terephthalate) (PBST50-50) catalyzed by organic guanidine; the method uses a non-toxic biomass organic guanidine compound as a main catalyst and uses a non-toxic acid salt of zinc as a co-catalyst to form a bi-component high activity catalytic system, and uses succinic acid (SA), terephthalic acid (TA), and 1,4-butanediol (BDO) as monomers; the biodegradable PBST50-50 is synthesized first by means of direct melt polycondensation, and then by means of solid phase polycondensation. The PBST50-50 synthesized by employing the method has an average molecular weight Mw that may reach 1.0×105-1.2×105, and a melting point of Tm≥170°C, the product color being white.
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Inventors:
LI HONG (CN)
ZHANG QUANXING (CN)
HE WENWEN (CN)
LI LIHENG (CN)
HUANG WEI (CN)
JIANG WEI (CN)
LI AIMIN (CN)
ZHANG QUANXING (CN)
HE WENWEN (CN)
LI LIHENG (CN)
HUANG WEI (CN)
JIANG WEI (CN)
LI AIMIN (CN)
Application Number:
PCT/CN2018/106225
Publication Date:
April 04, 2019
Filing Date:
September 18, 2018
Export Citation:
Assignee:
UNIV NANJING (CN)
International Classes:
C08G63/87; C08G63/183; C08G63/78; C08G63/80; C08G63/83
Foreign References:
| CN107674188A | 2018-02-09 | |||
| CN104725616A | 2015-06-24 | |||
| CN104031253A | 2014-09-10 | |||
| CN104725615A | 2015-06-24 | |||
| CN104119518A | 2014-10-29 | |||
| CN106939077A | 2017-07-11 | |||
| CN105131259A | 2015-12-09 | |||
| DE102010054892A1 | 2012-06-21 | |||
| US3639350A | 1972-02-01 |
Attorney, Agent or Firm:
SHENZHEN DISI-ELITE INTELLECTUAL PROPERTY AGENCY (CN)
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