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Polysiloxane-polyarylester block copolymer, preparation thereof and applications thereof

A technology of block copolymer and polysiloxane, which is applied in the direction of transportation and packaging, special packaging items, packaging item types, etc., to achieve a wide range of applications, mild and easy-to-control reaction conditions, and the effect of prolonging the coagulation time

Active Publication Date: 2014-01-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluoropolysiloxane-polyarylate block copolymers prepared by hydrosilylation of fluorine-containing / fluorine-free polysiloxane and fluorine-containing / fluorine-free terminal olefin polyarylate are in There is no relevant report in the literature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of olefin-terminated polyarylate: First, add 0.03 mol (6.84 g) of bisphenol A, 0.066 mol (2.64 g) of NaOH, 80 ml of deionized water and 0.051 g of phase transfer catalyst in a three-necked flask, and stir to make bisphenol A Dissolved in water to form an inorganic phase. Dissolve 0.015 mol (3.03 g) of terephthaloyl dichloride and isophthaloyl dichloride in 150 ml of dichloromethane to form an organic phase with a certain concentration. Slowly drop the organic phase into the inorganic phase at a temperature of 10°C. After stirring and reacting for 2 hours, slowly add 0.0035mol (0.317g) of acryloyl chloride monomer dropwise at 10°C. The following reaction was carried out for 1 hour. Remove dichloromethane and water, and obtain terminal olefin-based polyarylate after drying, and use GPC-MwA gel chromatography to measure the number-average molecular weight of polyarylate for 6300.

[0030] Preparation of polysiloxane-polyarylate block copolymer: Add 2 g (0....

Embodiment 2

[0033] Preparation of fluorine-containing polyarylate with terminal olefin group: First, add 0.03 mol (10.14 g) of bisphenol AF, 0.066 mol (2.64 g) of NaOH, 80 ml of deionized water and 0.051 g of phase transfer catalyst into a three-necked flask, and stir to make the bisphenol AF Phenol AF is dissolved in water to form an inorganic phase. Dissolve 0.02mol (4.05g) of terephthaloyl chloride and 0.01mol (2.03g) of isophthaloyl chloride in 150 ml of dichloromethane to form an organic phase with a certain concentration. Slowly drop the organic phase into the inorganic phase at a temperature of 0°C. After stirring and reacting for 5 hours, slowly add 0.0035mol (0.317g) of acryloyl chloride monomer dropwise at 0°C. The following reaction was carried out for 1 hour. Remove dichloromethane and water, and obtain olefin-terminated fluorine-containing polyarylate after drying, and use GPC-MwA gel chromatography to measure the number-average molecular weight of olefin-terminated fluorine...

Embodiment 3

[0037] Preparation of fluorine-containing polyarylate with terminal olefin group: First, add 0.03 mol (10.14 g) of bisphenol AF, 0.066 mol (2.64 g) of NaOH, 80 ml of deionized water and 0.051 g of phase transfer catalyst into a three-necked flask, and stir to make the bisphenol AF Phenol AF is dissolved in water to form an inorganic phase. Dissolve 0.01mol (2.03g) of terephthaloyl chloride and 0.02mol (4.05g) of isophthaloyl chloride in 150 ml of dichloromethane to form an organic phase with a certain concentration. Slowly drop the organic phase into the inorganic phase at a temperature of 5°C. After stirring and reacting for 3 hours, slowly add 0.0035mol (0.317g) of acryloyl chloride monomer dropwise at 0°C. The following reaction was carried out for 5 hours. Remove dichloromethane and water, and obtain olefin-terminated fluorine-containing polyarylate after drying, and use GPC-MwA gel chromatography to measure the number-average molecular weight of olefin-terminated fluorin...

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Abstract

The invention discloses a polysiloxane-polyarylester block copolymer, preparation thereof and applications thereof. The polysiloxane-polyarylester block copolymer is showed in the following formula. The polysiloxane-polyarylester block copolymer has low surface energy, strong hydrophobicity and an obvious microphase separation structure, and has great application value in the field of blood compatible materials. According to a preparation process of the block copolymer, a fluorine-containing / fluorine-free polyarylester having terminal alkenes, and a fluorine-containing / fluorine-free polysiloxanes having terminal hydrogens are used as raw materials, one or over two types of tetrahydrofuran, isopropanol, tolune and benzotrifluoride are used as solvent; and the block polymer is synthesized by hydrosilylation under the catalytic action of a catalyst 1,3-divinyl-1,1,3,3-tetramethyldisiloxane platinum (0) or chloroplatinic acid. The synthetic method is simple with mild and controllable reaction conditions, and is prone to industrial production.

Description

technical field [0001] The invention relates to a polysiloxane-polyarylate block copolymer and its preparation and application, belonging to the technical field of block copolymers. Background technique [0002] Due to the existence of two or more monomer segments with different properties in multi-component polymers such as block copolymers, when the monomer segments are incompatible, phase separation tends to occur, forming a scale from nanometer to micron. This kind of phase separation is called microphase separation, and the structure formed by different phase regions is called microphase separation structure (Liu Honglai, Hu Ying, Chinese Journal of Chemical Engineering, 2003, 54:440-443). It is because of these heterogeneous structures that this kind of multi-component polymers has many excellent properties. Existing studies have shown that in the fields of blood compatibility materials, anti-fouling coatings and anti-icing coatings, polymer materials with microphase ...

Claims

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Application Information

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IPC IPC(8): C08G81/00A61L33/06
Inventor 张书香李辉褚国红张炉青刘中云
Owner UNIV OF JINAN
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