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Amino modified polysiloxane copolymer and application thereof

A polysiloxane and amino modification technology, which is applied in the direction of organic dyes, can solve the problems of pigment color reduction and application limitations, and achieve the effect of good flocculation and precipitation and good wetting performance

Active Publication Date: 2013-04-10
LILY GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] GB1088207A discloses an organosilicon compound whose side chain is amino-modified. Although this compound can better disperse the pigment, it reduces the color of the pigment to a certain extent. Therefore, its application has been largely rejected. limit

Method used

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  • Amino modified polysiloxane copolymer and application thereof
  • Amino modified polysiloxane copolymer and application thereof
  • Amino modified polysiloxane copolymer and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 120g of terminal hydrogen-containing silicone oil (n=8000), 12.5g of allyl polyether (a=200, b=100), and 190g of toluene into a three-necked flask, stir and heat up to 100°C, and add chloroplatinic acid dropwise Isopropanol solution (mass fraction: 1.0%), add 1.4g allyl glycidyl ether after reacting for 3 hours, continue reacting for 5 hours, distill off the solvent and low boilers under reduced pressure, add appropriate amount of methanol to wash, and let stand to remove impurities phase, intermediate A-1 was obtained. The gel chromatography (GPC) test data of intermediate A-1 is shown in Table 1 below.

[0034] IR (tablet method): 3449.59 (s, υ-OH), 2869.86 (s, υCH 2 -O), 1457.30 (w, δ-CH 2 -), 1109.32 (s,υ-CH 2 -O-CH 2 -), 1101.94, 1020.47(s, υ–Si-O-Si-), 1260.95, 803.95(s, δSi-CH 3 ), 855.17 (w, δ-CH 2 OCH 2 -).

[0035] Table 1

[0036]

Embodiment 2

[0038]Put 120g of terminal hydrogen-containing silicone oil (n=12,000), 8.4g of allyl polyether (a=200, b=100), and 160g of toluene into a three-necked flask. Under the protection of nitrogen, stir and heat up to 100°C, add chlorine Isopropanol solution of platinum acid (mass fraction is 1.0%), after 3 hours of reaction, add 2.8g of glycidyl methacrylate to continue the reaction for 5 hours, then distill off the solvent and low boilers under reduced pressure, add an appropriate amount of methanol to wash, and let it stand The impurity phase was removed to obtain intermediate A-2. The GPC test data of Intermediate A-2 is shown in Table 2 below

[0039] IR (tablet method): 3449.59 (s, υ-OH), 2889.06 (s, υCH 2 -O), 1790.03(s, υ-C=O), 1453.70(w, δ-CH 2 -), 1102.39 (s,υ-CH 2 -O-CH 2 -), 1101.91, 1021.21 (s, υ-Si-O-Si-), 1262.42, 803.95 (s, δSi-CH 3 ), 855.73 (w, δ-CH 2 OCH 2 -).

[0040] Table 2

[0041]

Embodiment 3

[0043] Add 120g of terminal hydrogen-containing silicone oil (n=12,000), 8g of allyl polyether (a=150, b=0), and 120g of toluene into a three-necked flask, stir and heat to 100°C, add isopropanol of chloroplatinic acid Solution (mass fraction is 1.0%), add 1.4g allyl glycidyl ether after reacting for 3 hours, continue reacting for 5 hours, distill off the solvent and low boilers under reduced pressure, add an appropriate amount of methanol to wash, stand to remove the impurity phase, and obtain Intermediate A-3. The GPC test data of Intermediate A-3 is shown in Table 3 below

[0044] IR (tablet method): 3450.41 (s, υ-OH), 2867.80 (s, υCH 2 -O), 1458.55 (w, δ-CH 2 -), 1109.72 (s,υ-CH 2 -O-CH 2 -), 1020.29(s, υ–Si-O-Si-), 1261.25, 804.16(s, δSi-CH 3 ), 856.38 (w, δ-CH 2 OCH 2 -)

[0045] The GPC test data is shown in the table below

[0046] table 3

[0047]

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PUM

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Abstract

The invention relates to an amino modified polysiloxane copolymer with a modified group amino on a polysiloxane copolymer backbone and a application thereof. The amino modified polysiloxane copolymer comprises a polyamine chain segment, a polyether chain segment and a polysiloxane chain segment, wherein the viscosity of the amino modified polysiloxane copolymer is 38, 591-10, 272 cp (25 DEG C). The amino modified polysiloxane copolymer provided by the invention can be used as organic pigment (in particular heterocyclic or azo organic pigments) dispersants.

Description

technical field [0001] The invention relates to an amino-modified polysiloxane copolymer and its application, in particular to an amino-modified polysiloxane copolymer in which the amino group of the modified group is located in the main chain of the polysiloxane copolymer and its application. Background technique [0002] Because of its heat sensitivity and good tinting strength, pigments are widely used in paints, plastics, inks and other daily necessities. Unlike dyes, pigments are fine particles. In paint and other media, the particles are in a suspended state, forming a solid-liquid dispersion. This dispersion system is thermodynamically unstable. Due to the existence of intermolecular forces, pigment particles are easy to gather together to form larger particles. Therefore, in practical applications, pigments must be effectively dispersed. [0003] The main chain of organosilicon polymer is composed of soft silicon-oxygen bonds, which can be fully stretched in the med...

Claims

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Application Information

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IPC IPC(8): C08G77/388C09B67/20
Inventor 王利民李洁王峰王桂峰陈立荣田禾张春梅
Owner LILY GRP CO LTD
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