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Preparation method of hydrophobic alcohol metal compound and isosorbide modified polyester

A technology of metal compound and isosorbide, which is applied in the field of preparation of modified polyester, achieves the effect of small dosage, shortening the reaction time of esterification, and reducing the probability of side reactions in the system

Active Publication Date: 2020-06-23
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of society, ordinary polyester can no longer meet the growing needs of people's lives and industrial fields.

Method used

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  • Preparation method of hydrophobic alcohol metal compound and isosorbide modified polyester
  • Preparation method of hydrophobic alcohol metal compound and isosorbide modified polyester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Catalyst A preparation

[0021] The preparation of described catalyst A can operate according to the following steps:

[0022] First, add 31.5g of BiCl to a 500mL three-neck flask under stirring 3 with 9.49gTiCl 4 (BiCl 3 with TiCl 4 The molar ratio is about 2:1) mix evenly, slowly add 19.53g of n-octanol under stirring, absorb the generated acid gas with lye, age at room temperature for 2 hours, after no gas is released, stir at 120°C for 3 hours, Catalyst A was prepared.

Embodiment 2

[0024] Catalyst B Preparation

[0025] The preparation method of catalyst B is the same as that of catalyst A in Example 1, except that the BiCl used 3 with TiCl 4 The molar ratio is about 1:1.

Embodiment 3

[0027] Catalyst C Preparation

[0028] The preparation method of catalyst C is the same as that of catalyst A in Example 1, except that the BiCl used 3 with TiCl 4 The molar ratio is about 1:2.

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Abstract

The invention relates to a preparation method for a hydrophobic alcohol metal compound and application of the same to preparation of isosorbide-modified polyester. According to the invention, a dihydric alcohol mixture of dibasic acid and isosorbide is used as a monomer and the hydrophobic alcohol metal compound is used as a catalyst for preparation of the modified polyester under mild conditions.According to the preparation method for the isosorbide-modified polyester, the used catalyst is low in usage amount and stable in performance, and can effectively reduce esterification time, lower polycondensation temperature, decrease the loss of raw materials and reduce the probability of occurrence of side reactions of a system.

Description

technical field [0001] The invention relates to a preparation method of a modified polyester which uses a hydrophobic alcohol metal compound as a catalyst and a dibasic acid and a dibasic alcohol mixture of isosorbide as a monomer. Background technique [0002] Polyester refers to a polymer compound containing a large number of ester bonds on the main chain of a macromolecule, which is produced by direct esterification or transesterification of a dibasic (or polybasic) acid (or its ester) and a dibasic (or polybasic) alcohol. According to dibasic acid and dibasic alcohol, various polyesters can be synthesized. At present, the varieties that have been industrially produced and applied mainly include: polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polycyclohexylenedimethylene terephthalate (PCT) , polyethylene naphthalate (PEN), polybutylene naphthalate (PBN) and polytrimethylene terephthalate (PTT), etc. Among these varieties, the most widely used are P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/85C08G63/42
CPCC08G63/42C08G63/85
Inventor 石松徐杰高进杜文强郑玺孙颖
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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