Preparation methods for hydrophobic alcohol metal compound and isosorbide-modified polyester

A technology of metal compound and isosorbide is applied in the field of preparation of modified polyester to achieve stable performance, reduce loss of raw materials, and shorten reaction time of esterification

Active Publication Date: 2018-10-16
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 l

Method used

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  • Preparation methods for hydrophobic alcohol metal compound and isosorbide-modified polyester
  • Preparation methods for hydrophobic alcohol metal compound and isosorbide-modified polyester

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example one:

[0020] Catalyst A preparation

[0021] The preparation of the catalyst A can be operated as follows:

[0022] First add 31.5g BiCl in a 500mL three-neck flask with stirring 3 With 9.49gTiCl 4 (BiCl 3 With TiCl 4 The molar ratio is about 2:1) Mix uniformly, slowly add 19.53g of n-octanol under stirring, and absorb the acidic gas generated with lye, aging at room temperature for 2 hours, and after no gas is released, stir at 120°C for 3 hours. Prepare catalyst A.

Example Embodiment

[0023] Embodiment two:

[0024] Catalyst B preparation

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

Example Embodiment

[0026] Embodiment three:

[0027] Catalyst C preparation

[0028] The preparation method of catalyst C is the same as the preparation 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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PUM

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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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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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