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Epoxidized soybean oil flexibilizer as well as preparation method and application thereof

A technology of epoxidized soybean oil and toughening agent, which is applied in the direction of organic chemistry, can solve the problem of epoxidized soybean oil losing light stabilization, and achieve good thermal stability and migration resistance, high reactivity, and good toughening effect of effect

Active Publication Date: 2018-05-01
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the epoxy group is completely consumed, the epoxy soybean oil will lose the photostabilization effect

Method used

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  • Epoxidized soybean oil flexibilizer as well as preparation method and application thereof
  • Epoxidized soybean oil flexibilizer as well as preparation method and application thereof
  • Epoxidized soybean oil flexibilizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Step a, 156g2,2,6,6-tetramethylpiperidinamine and 76g thiourea are added to a three-necked flask with a stirring device, a thermometer and a spherical condenser with an outlet pipe, and the oil bath is heated to make the thiourea Dissolve completely, continue to heat up to 150°C, keep stirring for 6h, and cool to room temperature.

[0052] Tested by GC-MS, the molecular weight of the obtained compound is 215. According to the carbon nuclear magnetic resonance spectrum structure confirmation, the chemical shift of the N-H proton on the piperidine ring appears at δ1.91ppm, and the chemical shift of the N-H proton connected to the C=S bond on the piperidine ring The shift occurs at δ8.90ppm, NH linked to C=S bond 2 The chemical shift of the proton appears at δ8.56ppm, and the ratio of the three peak areas is 1:1:2, all of which prove the occurrence of condensation reaction. The structural formula of the piperidine amine compound of the thiourea modification that makes is ...

Embodiment 2

[0055] Step a, 156g2,2,6,6-tetramethylpiperidinamine and 76g thiourea are added to a three-necked flask with a stirring device, a thermometer and a spherical condenser with an outlet pipe, and the oil bath is heated to make the thiourea Dissolve completely, continue to heat up to 200°C, keep stirring for 10h, and cool to room temperature;

[0056] Tested by GC-MS, the molecular weight of the obtained compound is 215. According to the carbon nuclear magnetic resonance spectrum structure confirmation, the chemical shift of the N-H proton on the piperidine ring appears at δ1.91ppm, and the chemical shift of the N-H proton connected to the C=S bond on the piperidine ring The shift appears at δ8.90ppm, the chemical shift of the NH2 proton connected to the C=S bond appears at δ8.56ppm, and the ratio of the three peak areas is 1:1:2, all of which prove the occurrence of condensation reaction. The structural formula of the piperidine amine compound of the thiourea modification that ma...

Embodiment 3

[0059] Step a, 190g 4-amino-1-benzylpiperidine and 76g thiourea are added to a three-necked flask with a stirring device, a thermometer and a spherical condenser with an outlet pipe, heated in an oil bath to completely dissolve the thiourea, continue The temperature was raised to 120°C, kept under stirring for 2h, and cooled to room temperature.

[0060] Tested by GC-MS, the molecular weight of the obtained compound is 249, confirmed by carbon nuclear magnetic resonance spectrum structure, the chemical shift of the N-H proton on the piperidine ring appears at δ1.91ppm, and the NH linked to the C=S bond 2 The chemical shift of the proton appears at δ8.56ppm, and the ratio of the two peak areas is 1:2, all of which prove the occurrence of condensation reaction. The structural formula of the piperidine amine compound of the thiourea modification that makes is shown in formula (I), wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 Both are H; R 7 is benzyl.

[0061] Step b, add 95...

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Abstract

The invention provides an epoxidized soybean oil flexibilizer as well as a preparation method and application thereof. The epoxidized soybean oil flexibilizer disclosed by the invention is prepared bygrafting reaction between epoxidized soybean oil and thiourea modified piperylhydrazine compound. The epoxidized soybean oil flexibilizer disclosed by the invention can be applied to a polyvinyl chloride material, can obtain dual functionality, not only can improve material toughness, but also improve light stability and further has good compatibility.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride modification, in particular to an epoxy soybean oil toughening agent and its preparation method and application. Background technique [0002] Polyvinyl chloride is widely used in many fields. In order to improve the UV aging resistance and mechanical properties of polyvinyl chloride, modifiers (such as tougheners and / or light stabilizers) are usually added to polyvinyl chloride to improve its performance. Currently used modifiers, one of which is hindered amine light stabilizer. [0003] In order to enable hindered amine light stabilizers to maintain a stable effect for a long period of time, the methods currently used mainly include: [0004] 1. By grafting the reactive light stabilizer onto the reactive group of the polymer molecular chain (Chinese patent application CN105331314A), the problem of easy migration of the small molecule light stabilizer is solved. [0005] 2. Preparat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D405/14C07D211/58C08L27/06C08L91/00
CPCC07D211/58C07D405/14C08L27/06C08L2201/08C08L91/00
Inventor 张春刘赵兴方璞孙玲玉曹善健
Owner WANHUA CHEM GRP CO LTD
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