发明名称 |
PROCESS METHOD FOR SYNTHESIZING POLYBUTYLENE SUCCINATE USING BIO-ORGANIC GUANIDINE CATALYSIS |
摘要 |
Provided is a process method for synthesizing polybutylene succinate using bio-organic guanidine catalysis. The distinctive feature of the present invention is: bio-organic guanidine creatinine or guanine generated by metabolism in the human body is used as the primary catalyst constituting a highly effective quaternary catalytic system, the synthesis process comprising: (1) succinic acid, 1,4-butanediol, and a bio-organic guanidine catalyst are placed into a reactor and undergo an esterification reaction for 2-3 hours at 180°C-200°C at atmospheric pressure until no water comes out; (2) adding a promoter, adjusting the absolute pressure of the reaction system to 0.5-3 torr, and performing a polycondensation reaction for 20-30 hours at 210°C-230°C to obtain a product. The beneficial features of the present invention are: (1) a quaternary catalytic system is employed, catalysis is highly efficient, and the amount of catalyst used is small; (2) the present process significantly reduces the degradation side reaction occurring during synthesis; (3) the synthesis of the polymer may be controlled according to actual requirements so that its molecular weight is within a range of 1.4-1.7×105. |
申请公布号 |
WO2016165533(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
WO2016CN76956 |
申请日期 |
2016.03.22 |
申请人 |
NANJING UNIVERSITY |
发明人 |
LI, Hong;ZHANG, Quanxing;SONG, Yiting;SUN, Xiangqian;HUANG, Wei;LI, Aimin |
分类号 |
C08G63/16;C08G63/83;C08G63/85;C08G63/87 |
主分类号 |
C08G63/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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