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Production and use for high-oxygen light-transmittance connected network

A technology of co-continuity and transmittance, which is applied in the field of preparation of co-continuous network with high oxygen transmittance, can solve problems such as deterioration of network performance, and achieve good oxygen transmittance and good resistance to oxygen degradation

Inactive Publication Date: 2010-05-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current literature reports mostly use polyethylene oxide as one of the raw materials to prepare the amphoteric co-continuous network. Since polyethylene oxide will be oxidatively degraded under natural conditions, which will lead to the deterioration of network performance during use, it is necessary to use anti-oxidant Ability of other raw materials to prepare novel amphiphilic cocontinuous networks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Dissolve 10 parts of polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer in 40 parts of solvent, put in 2 parts of sodium hydroxide, and 5 parts of allyl chloride at 45℃ By chemical reaction, a modified polyethylene oxide-polypropylene oxide-polyethylene oxide tertiary copolymer with an allyl group is obtained.

[0031] (2) Synthesis of bis(dimethylmethanesiloxy)ethoxyphenylsilane: 10 parts of tris(dimethylmethanesiloxy)phenylsilane and 1 part of absolute ethanol are mixed uniformly, 700ppm Karstedt catalyst is added, After reacting for 1 hour at room temperature, the product was subjected to vacuum distillation to obtain bis(dimethylmethanesiloxy)ethoxyphenylsilane with a purity of 98%.

[0032] (3) Synthesis of amphoteric random block copolymer: 1 part of modified polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer and 4 parts of polysiloxane are dissolved in 40 parts of solvent and added Under the action of bis(dimethylmethanesiloxy)...

Embodiment 2

[0036] (1) Dissolve 10 parts of polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer in 20 parts of solvent, put in 3 parts of sodium hydroxide, and 4 parts of allyl chloride at 55℃ By chemical reaction, a modified polyethylene oxide-polypropylene oxide-polyethylene oxide tertiary copolymer with an allyl group is obtained.

[0037] (2) Synthesis of bis(dimethylmethanesiloxy)ethoxyphenylsilane: 10 parts of tris(dimethylmethanesiloxy)phenylsilane and 1 part of absolute ethanol are mixed uniformly, 700ppm Karstedt catalyst is added, After reacting for 7 hours at room temperature, the product was subjected to vacuum distillation to obtain bis(dimethylmethanesiloxy)ethoxyphenylsilane with a purity of 98%.

[0038] (3) Synthesis of amphoteric random block copolymer: 1 part of modified polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer and 2 parts of polysiloxane are dissolved in 40 parts of solvent and added Under the action of bis(dimethylmethanesiloxy...

Embodiment 3

[0042] (1) Dissolve 10 parts of polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer in 10 parts of solvent, add 4 parts of sodium hydroxide, and 5 parts of vinylbenzyl chloride at 50℃ A chemical reaction occurs under the following conditions to obtain a modified polyethylene oxide-polypropylene oxide-polyethylene oxide tertiary copolymer with a styrene-based end group.

[0043] (2) Synthesis of bis(dimethylmethanesiloxy)ethoxyphenylsilane: 10 parts of tris(dimethylmethanesiloxy)phenylsilane and 1 part of absolute ethanol are mixed uniformly, and 1000ppm Karstedt catalyst is added, After reacting for 5 hours at room temperature, the product is vacuum rectified to obtain bis(dimethylmethanesiloxy)ethoxyphenylsilane with a purity of 98%.

[0044] (3) Synthesis of amphoteric random block copolymer: 2 parts of modified polyethylene oxide-polypropylene oxide-polyethylene oxide terpolymer and 3 parts of polysiloxane are dissolved in 50 parts of solvent. Under the action ...

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Abstract

Production of high-oxygen transmissivity continuous network and its use are disclosed. The process is carried out by preparing modified poly-glycol and its other copolymer, synthesizing modified cross-linking agent / filler-di(dimethyl-siloxy)oxyethyl-phenyl-silane, taking poly-glycol, its copolymer and organic silicone as raw materials to prepare amphoteric random block copolymer, chemical cross-linking reacting to obtain the final product. It has excellent anti-oxidant degradability and can be used for contact lens, artificial organotherapy and medicinal controllable release carrier.

Description

Technical field [0001] The invention belongs to the field of network intelligent materials, and particularly relates to a preparation method and application of a high oxygen permeability co-continuous network. Background technique [0002] Current literature reports mostly use polyethylene oxide as one of the raw materials to prepare amphoteric co-continuous networks. Because polyethylene oxide will undergo oxidative degradation under natural conditions, the network performance will deteriorate during use. Therefore, it is necessary to use anti-oxidant The ability of other raw materials to prepare a novel co-continuous network of both sexes. [0003] literature: [0004] 1. Wang, Shanfeng; Lu, Lichun; Yaszemski, Michael J. "Hydrophilic / hydrophobic polymer networks containing caprolactone fumarate and ethylene glycol fumarate units", PCT Int. Appl. (2006), WO 2006118987 A1 20061109, [0005] 2. J.P. Kennedy; G. Erdodi, "Amphiphilic co-networks, films made from amphiphilic co-networks ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C08G65/34A61L31/06A61K47/34
Inventor 何春菊孙俊芬王庆瑞
Owner DONGHUA UNIV
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