Method for preparing dimer(fatty acid)yl polyester by grafting on cyclodextrin

A technology for dimerizing fatty acid and base polyester, which is applied in the field of cyclodextrin graft dimerization fatty acid base polyester and its preparation, and can solve the problems that have not been reported before.

Inactive Publication Date: 2011-04-06
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are many reports on the successful grafting of cyclodextrin to the main chain of polyethylene film, polypropylene fiber, polyamide-6 and other polymers to form functional materials, but there is no report on the grafting of cyclodextrin rotaxanes to dimer fatty acid groups. Reports of polyester materials have appeared

Method used

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  • Method for preparing dimer(fatty acid)yl polyester by grafting on cyclodextrin
  • Method for preparing dimer(fatty acid)yl polyester by grafting on cyclodextrin
  • Method for preparing dimer(fatty acid)yl polyester by grafting on cyclodextrin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Preparation of dimer fatty acid base polyester:

[0057] To 100 g of dimerized fatty acid (DFA) was added 0.3070 g of PTSA and 21.8 mL of ethylene glycol.

[0058] Start to heat the reaction mixture, condense and reflux, and stir under the protection of nitrogen. At this time, the oily reaction liquid becomes turbid, and becomes clear as the temperature rises. After the temperature reaches 160 ° C, the reaction is continued for 1 h. Stop flowing nitrogen, the reactor is airtight, open the vacuum pump to vacuumize 10min, to remove most of the moisture. Then 17.4823 g of MAH was added to the reactor.

[0059] Continue to feed nitrogen, react at 160°C for 1 hour, then vacuumize, and continue to react for 3 hours. Then take out the dimer fatty acid base polyester of orange-yellow oily liquid, obtain 99.6725g sample S 1 .

[0060] (2) Curing of dimer fatty acid-based unsaturated polyester:

[0061] The polyester sample obtained above is poured in the reactor, and th...

Embodiment 2

[0072] (1) Preparation of dimer fatty acid base polyester:

[0073] To 100 g of dimerized fatty acid (DFA) was added 0.3070 g of PTSA and 21.8 mL of ethylene glycol.

[0074] Start to heat the reaction mixture, condense and reflux, and stir under the protection of nitrogen. At this time, the oily reaction liquid becomes cloudy, and becomes clear as the temperature rises. After the temperature reaches 160 ° C, the reaction is continued for 1 h. The nitrogen flow was stopped, the reactor was sealed, and the vacuum pump was turned on to evacuate for 10 minutes to remove most of the moisture. Then 17.4823 g of MAH was added to the reactor.

[0075] Continue to feed nitrogen, react at 160°C for 1 hour, then vacuumize, and continue to react for 3 hours. Then take out the dimerized fatty acid base polyester of orange-yellow oily liquid, obtain 95.7360g sample S 2 .

[0076] (2) Curing of dimer fatty acid-based unsaturated polyester:

[0077] The polyester sample obtained above i...

Embodiment 3

[0088] (1) Preparation of dimer fatty acid base polyester:

[0089] To 100 g of dimerized fatty acid (DFA) was added 0.3070 g of PTSA and 21.8 mL of ethylene glycol.

[0090] Start to heat the reaction mixture, condense and reflux, and stir under the protection of nitrogen. At this time, the oily reaction liquid becomes turbid, and becomes clear as the temperature rises. After the temperature reaches 160 ° C, the reaction is continued for 1 h. The nitrogen flow was stopped, the reactor was sealed, and the vacuum pump was turned on to evacuate for 10 minutes to remove most of the moisture. Then 17.4823 g of MAH was added to the reactor.

[0091] Continue to feed nitrogen, react at 160°C for 1 hour, then vacuumize, and continue to react for 3 hours. Then take out the dimer fatty acid base polyester of orange-yellow oily liquid, obtain 100.5621g sample S 3 .

[0092] (2) Curing of dimer fatty acid-based unsaturated polyester:

[0093]The polyester sample obtained above is po...

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Abstract

The invention aims at providing a method for preparing dimer(fatty acid)yl polyester by grafting on cyclodextrin. The preparation method is characterized in that dimeric fatty acid, glycols monomer and maleic anhydride are condensed, thus forming unsaturated polyester the main chain of which contains massive double bonds, then phenylethylene is adopted to be polymerized with double bond free radical on the main chain, and partial crosslinking is produced, thus forming cured dimeric fatty acid polyester. Then glycidyl methacrylate (GMA) is taken as grafting intermediate, and cyclodextrin pseudo rotaxane is successfully grafted onto the matrix of dimer(fatty acid)yl polyester, thus forming granular material with the diameter of about 0.5mm. Owning to hydrophobic interaction of cavity of cyclodextrin, the material can absorb or contain organic micromolecule and can be taken as absorbing material or functional material.

Description

technical field [0001] The invention relates to a cyclodextrin grafted dimer fatty acid base polyester and a preparation method thereof. In particular, the present invention relates to styrene-cured dimer fatty acid-based polyesters to obtain solid particles of dimer fatty acid-based polyesters, and a preparation method using glycidyl methacrylate (GMA) as a cyclodextrin-grafted polyester intermediate . technical background [0002] Cyclodextrin (CD for short) is a cyclic molecule composed of D-glucopyranose glycosidic bonds, usually containing 6, 7, 8 sugar units, called α-, β-, γ-rings respectively. dextrin. The inner cavity of cyclodextrin is hydrophobic and the outer surface is hydrophilic, and it can form clathrates with various organic, inorganic and biomolecules, thus becoming a research object of interest to supramolecular chemists. [0003] In 1932, Pringsheim first proposed that cyclodextrin as a subject molecule has a strong ability to recognize guest molecules...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/16C08F285/00C08F8/00C08F283/01C08G63/52B01J20/26B01J20/30
Inventor 陈玉洁吴唯路其臻刘勇
Owner EAST CHINA UNIV OF SCI & TECH
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