Organosilicon crosslinked polymer and preparation method and application thereof

A cross-linked polymer and silicone technology, applied in the field of compounds, can solve the problems of phase separation and poor stability, and achieve the effects of improving compatibility and lubricity, improving toughness, and improving skin feel and lubricity.

Inactive Publication Date: 2018-10-09
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a silicone cross-linked polymer and its preparation method and application, which are used to solve the problems that occur during long-term storage when the existing silicone cross-linked polymer is applied to products such as cosmetics and personal care. Phase separation, poor stability issues

Method used

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  • Organosilicon crosslinked polymer and preparation method and application thereof
  • Organosilicon crosslinked polymer and preparation method and application thereof
  • Organosilicon crosslinked polymer and preparation method and application thereof

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preparation example Construction

[0035] The present invention also provides a method for preparing an organosilicon crosslinked polymer, comprising the following steps:

[0036] a) Mix long-chain alkyl polydimethylsiloxane polyethylene glycol with acrylic compound, and carry out esterification reaction under the first catalyst to obtain long-chain alkyl polydimethylsiloxane with the structure shown in formula (II) Silicone Polyethylene Glycol Acrylate;

[0037]

[0038] b) dissolving the long-chain alkyl polydimethylsiloxane polyethylene glycol acrylate in an organic solvent, adding polymethylhydrogensiloxane, and carrying out the addition and crosslinking reaction catalyzed by the second catalyst under anaerobic conditions, Obtain the organosilicon cross-linked polymer having the structure shown in formula (I);

[0039]

[0040] Wherein, x is 7-30, y is 1-100, n is 1-50, m is 1-100, a is 0-20, and b is 0-20.

[0041] In the present invention, the temperature of the esterification reaction is 80°C to ...

Embodiment 1

[0090] 1) 2g of acrylic acid is mixed with 20g of long-chain alkyl polydimethylsiloxane polyethylene glycol, stirred, after adding 0.03g of inhibitor hydroquinone and 0.22g of the first catalyst p-toluenesulfonic acid, at 90 Perform esterification reaction at ℃ for 6h to obtain long-chain alkyl polydimethylsiloxane polyethylene glycol acrylate;

[0091] 2) After dissolving 10 g of the long-chain alkyl polydimethylsiloxane polyethylene glycol acrylate prepared in step 1) in 35 ml of isopropanol, add to 15 g of polymethylhydrogen with an active hydrogen content of 0.18 wt % In siloxane, feed nitrogen and stir, then add 48 mg of 0.74% chloroplatinic acid isopropanol solution, raise the temperature to 80 ° C, carry out the addition and crosslinking reaction for 8 hours in the presence of the second catalyst chloroplatinic acid, and use rotary evaporation Remove the solvent isopropanol to obtain a silicone crosslinked polymer.

[0092] see figure 1 , is the infrared spectrogram o...

Embodiment 2

[0095] 1) 2g of acrylic acid is mixed with 16g of long-chain alkyl polydimethylsiloxane polyethylene glycol, stirred, after adding 0.03g of inhibitor hydroquinone and 0.18g of the first catalyst p-toluenesulfonic acid, at 100 Perform esterification reaction at ℃ for 8h to obtain long-chain alkyl polydimethylsiloxane polyethylene glycol acrylate;

[0096] 2) After dissolving 10 g of the long-chain alkyl polydimethylsiloxane polyethylene glycol acrylate prepared in step 1) in 35 ml of isopropanol, add to 15 g of polymethylhydrogen with an active hydrogen content of 0.18 wt % In siloxane, feed nitrogen and stir, then add 48 mg of 0.74% chloroplatinic acid isopropanol solution, raise the temperature to 80 ° C, carry out the addition and crosslinking reaction for 8 hours in the presence of the second catalyst chloroplatinic acid, and use rotary evaporation Remove the solvent isopropanol to obtain a silicone crosslinked polymer.

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Abstract

The invention belongs to the technical field of polymer, and particularly relates to organosilicon crosslinked polymer and a preparation method and application thereof. The organosilicon crosslinked polymer has structure shown as a formula (1). The organosilicon crosslinked polymer is a liquid emulsifier and contains long-chain alkyl, polyethylene glycol chain segment and silicon oil chain segmentat the same time, introduction of long-chain alkyl enhances skin of the polymer, the polymer is enabled to be closer to human fat ingredient, and surface tension, compatibility and lubricity are improved; introduction of the polyethylene glycol chain segment improves compatibility of the polymer with water. Crosslinking structure of the organosilicon crosslinked polymer improves toughness, film forming performance and stability of the polymer; the polymer has high affinity with other oil, has a multi-emulsifying function, can be directly used in cosmetics to prepare O/W/O multi-emulsions andcan improve skin feeling and lubricity of the cosmetics to enable durability and stability of the cosmetics.

Description

technical field [0001] The invention belongs to the technical field of compounds, and in particular relates to an organosilicon cross-linked polymer and a preparation method and application thereof. Background technique [0002] Silicone oils have good dispersibility and water resistance, but they have poor compatibility with other oil phases. Some scholars have proposed to use different groups to solidify or thicken silicone oil to ensure the stability of cosmetics, such as introducing alkyl groups, fatty alcohol compounds with 21 to 30 carbon atoms or ester groups into the silicon chain. However, traditional curing / thickening agents are all oily or viscous. When applied to the skin, it feels like a layer of oil film covers the surface. It is also difficult to maintain its stability when the temperature is high, and the application is not completely satisfactory. Therefore, silicone cross-linked polymers have received more and more attention from researchers. [0003] Sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46A61K8/894A61Q19/00
CPCA61K8/894A61K2800/10A61K2800/48A61Q19/00C08G77/46
Inventor 易国斌梁红萍唐子伦
Owner GUANGDONG UNIV OF TECH
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