Preparation method of high-yield high-activity alkynol-coated vinyl platinum complex

A platinum complex, high-activity technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, chemical/physical processes, etc., can solve the problem of inability to form vinyl platinum complexes, unfavorable Problems such as storage and use, loss of activity, etc., to achieve the effect of high product yield, good stability, and simple and easy preparation method

Active Publication Date: 2016-01-20
ANHUI ZHENGJIE HIGH TECH MATERIALS CO LTD BY SHARE
View PDF9 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Karstedt catalyst has the disadvantage of easily losing activity, which is not conducive to storage and use
Chinese patent CN102302951A discloses a special catalyst for hydrosilylati

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: A method for preparing a high-yield and high-activity acetylenic alcohol-coated vinyl platinum complex

[0021] The preparation method comprises the following steps:

[0022] In the first step, 100 parts by weight of tetramethyldivinyldisiloxane is weighed and poured into the reactor;

[0023] In the second step, 3 parts by weight of chloroplatinic acid are dissolved with 40 parts by weight of isopropanol or ethanol to obtain a chloroplatinic acid solution, and then the chloroplatinic acid solution is poured into the reactor, stirred, and the stirring speed is 350rpm, stirring At the same time, the temperature was raised to 60°C, and the reaction time was 0.5h, so that the chloroplatinic acid could fully decompose the elemental platinum and prepare for the next reaction;

[0024] In the third step, after the second step reaction finishes, 10 parts by weight of sodium bicarbonate are slowly added to the reactor, and the addition speed of the sodium bicarbonat...

Embodiment 2

[0030] Example 2: A method for preparing a high-yield and high-activity acetylenic alcohol-coated vinyl platinum complex

[0031] The preparation method comprises the following steps:

[0032] In the first step, 100 parts by weight of tetramethyldivinyldisiloxane is weighed and poured into the reactor;

[0033] In the second step, 5 parts by weight of chloroplatinic acid are dissolved with 60 parts by weight of isopropanol or ethanol to obtain a chloroplatinic acid solution, and then the chloroplatinic acid solution is poured into the reactor, stirred, and the stirring speed is 420rpm, stirring At the same time, the temperature was raised to 55°C, and the reaction time was 1h, so that the chloroplatinic acid could fully decompose the elemental platinum and prepare for the next reaction;

[0034] In the third step, after the second step reaction finishes, 20 parts by weight of sodium bicarbonate are slowly added to the reactor, and the addition speed of the sodium bicarbonate ...

Embodiment 3

[0040] Example 3: A method for preparing a high-yield and high-activity acetylenic alcohol-coated vinyl platinum complex

[0041] In the first step, 100 parts by weight of tetramethyldivinyldisiloxane is weighed and poured into the reactor;

[0042] In the second step, 8 parts by weight of chloroplatinic acid are dissolved with 100 parts by weight of isopropanol or ethanol to obtain a chloroplatinic acid solution, and then the chloroplatinic acid solution is poured into the reaction kettle, stirred, and the stirring speed is 300rpm, stirring At the same time, the temperature was raised to 50°C, and the reaction time was 2 hours, so that the chloroplatinic acid could fully decompose the elemental platinum and prepare for the next reaction;

[0043] In the third step, after the second step reaction finishes, 30 parts by weight of sodium bicarbonate are slowly added to the reactor, and the addition speed of the sodium bicarbonate is controlled at 0.5 g per minute. The temperatur...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a high-yield high-activity alkynol-coated vinyl platinum complex. The preparation method is characterized by comprising the following steps that 1, 100 parts by weight of 1,3-divinyltetramethyldisiloxane is taken to be poured into a reaction kettle; 2, 1-8 parts by weight of chloroplatinic acid is dissolved with solvent to obtain a chloroplatinic acid solution, the chloroplatinic acid solution is poured into the reaction kettle to be stirred, the temperature is increased to 50-60 DEG C, and the reaction time is set for 0.5-2 h; 3, 5-30 parts by weight of sodium bicarbonate is added into the reaction kettle, then the temperature is increased to 60-80 DEG C, and stirring is continuously performed to enable a reaction to be performed for 1-3; 4, 1-10 parts by weight of alkynol is dissolved with 10-100 parts by weight of solvent to obtain an alkynol solution, the alkynol solution is dropwise added into the reaction kettle, and dropwise adding is completed in 0.5-2 h; 5, filtering is performed to obtain filtrate and sodium bicarbonate residues; 6, reduced-pressure solvent removing is performed on the filtrate at 60 DEG C to obtain liquid; 7, vinyl silicone oil is added into the liquid to obtain the high-yield high-activity alkynol-coated vinyl platinum complex. The preparation method is simple and easy to achieve, and the yield of the prepared product can be more than 98 percent.

Description

technical field [0001] The invention belongs to the field of preparation of organosilicon addition reaction catalysts, in particular to a preparation method of vinyl platinum complex coated with acetylenic alcohol with high yield and high activity. Background technique [0002] Silicone addition reaction uses platinum as a catalyst to produce transparent and non-yellowing silicone products. Vinyl platinum complex, also known as platinum water and Karstedt catalyst (English full name: KarstedtCatalystSolution) on the market, is mainly a catalyst with zero-valent platinum as the active component. It is a colorless, transparent or light yellow liquid with high catalytic efficiency. It can suppress the side reactions accompanying Si-Vi (Vi is the abbreviation of vinyl Vinyl) and Si-H during the reaction process, avoid the formation of black substances, and overcome the yellowing or blackening of products during the use of other catalysts, so it can Prepare highly transparent pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L83/04C08J3/24B01J31/22
Inventor 王艳艳徐正华
Owner ANHUI ZHENGJIE HIGH TECH MATERIALS CO LTD BY SHARE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap