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A kind of macromolecular hydrophobic monomer polytetrahydrofuran diacrylate and preparation method thereof

A technology of polytetrahydrofuran diacrylate and hydrophobic monomer is applied in the field of macromolecular hydrophobic monomer polytetrahydrofuran diacrylate and its preparation, and can solve the problems of weak rigidity, low conversion rate, poor shear resistance and the like, To achieve the effect of enhanced tensile properties, simple preparation method and simple reaction mechanism

Inactive Publication Date: 2016-03-23
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to solve technical problems such as low conversion rate, weak rigidity, and poor shear resistance of the above-mentioned hydrophobic monomers when synthesizing copolymers, thereby providing a kind of macromolecular hydrophobic monomer polymer tetrahydrofuran diacrylate

Method used

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  • A kind of macromolecular hydrophobic monomer polytetrahydrofuran diacrylate and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0022] Polytetrahydrofuran diacrylate, a macromolecular hydrophobic monomer, contains two vinyl structures, and its structural formula is as follows:

[0023] , where n is 13~14.

[0024] The preparation method of above-mentioned a kind of macromolecular hydrophobic monomer polytetrahydrofuran diacrylate specifically comprises the following steps:

[0025] (1) First, add 140.57g of benzoyl chloride and 90.05g of acrylic acid into the flask, then add 0.7g of polymerization inhibitor cuprous chloride, and add 100g of acrylic acid into the constant pressure dropping funnel; secondly, control the pressure to 0.05MPa, temperature Under the conditions of 70°C and a stirring speed of 700r / min, add the acrylic acid in the constant pressure dropping funnel to the beaker at a controlled dropping rate of 6ml / min, and collect the distillate at the same time, that is, acryloyl chloride;

[0026] The amount of benzoyl chloride used above and the total amount of acrylic acid are in a mola...

Embodiment 2

[0036] Polytetrahydrofuran diacrylate, a macromolecular hydrophobic monomer, contains two vinyl structures, and its structural formula is as follows:

[0037] , where n is 13~14.

[0038] The preparation method of above-mentioned a kind of macromolecular hydrophobic monomer polytetrahydrofuran diacrylate specifically comprises the following steps:

[0039] (1), with the step (1) of embodiment 1;

[0040] (2) Add 50g of polytetrahydrofuran, 13.1g of triethylamine and 100ml of chloroform into the reactor, and add 0.1g of polymerization inhibitor hydroquinone, stir in an ice-water bath, and control the dropping rate at 5-6ml / Add 11.7g of acryloyl chloride dropwise at a rate of 1 min, wait until the drop of acryloyl chloride is finished, react for 0.5h, then remove the ice bath, control the temperature at 50°C and continue the reaction for 12h to obtain a reaction solution;

[0041] The amount of polytetrahydrofuran (PTF), triethylamine, methylene dichloride, polymerization inh...

Embodiment 3

[0048] (1), with the step (1) of embodiment 1;

[0049] (2) Add 50g of polytetrahydrofuran, 13g of triethylamine and 100ml of dichloromethane into the reactor, add 0.12g of inhibitor hydroquinone, stir in an ice-water bath, and control the dropping rate at a rate of 6ml / min to 11.3 g of acryloyl chloride was added dropwise, and reacted for 0.5h after the drop of acryloyl chloride was completed, then the ice bath was removed, and the temperature was controlled at 35°C to continue the reaction for 8h to obtain a reaction solution;

[0050] The amount of polytetrahydrofuran (PTF), triethylamine, methylene dichloride, polymerization inhibitor hydroquinone and acryloyl chloride used in the above-mentioned reaction process, press polytetrahydrofuran: acryloyl chloride: triethylamine: dichloromethane: polymerization inhibitor p-phenylene Diphenol is prepared in the ratio of 1000g: 226g: 260g: 2000ml: 2.4g;

[0051] (3), filter the reaction solution obtained in step (2) with a sand c...

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Abstract

The invention discloses a macromolecular hydrogenic monomer polyphrait amurate and preparation method.The large molecular hydrophobic monomer of hydrogenia is a methampitic amurate dihydrite contains two ethylene base structures.The preparation method is to add a reactor to the polyphrase, triamine and dichloromethane, and add a cluster, stir under the ice water bath, control the drip meter to be 4 ~ 6ml / min.After dripping, the reaction is 0.5 ~ 2h, removes the ice water bath, and the control temperature will continue to react from 25 ~ 50 ° C for 8 ~ 12h.Then use saturated saline to wash until neutral, add magnesium sulfate after the separation, set up 12h and filter. The filter liquid uses a rotating evaporate instrument to remove the excess solvents, that is, the macromolecular hydrogenic monomer polypholticate.

Description

technical field [0001] The invention belongs to the technical field of organic synthetic materials, and in particular relates to a macromolecular hydrophobic monomer polytetrahydrofuran diacrylate and a preparation method thereof. Background technique [0002] Membrane separation technology is a new type of separation technology, which has the advantages of low energy consumption, good separation performance, and no secondary pollution. It is widely used in hospitals, chemicals, food, environmental protection, water resources and other fields. In order to prolong the service life of water treatment separation membranes and expand their application fields, amphoteric polymers are used to modify the separation membranes. The hydrophobic monomer is an essential raw material for the preparation of amphoteric polymer materials by free radical polymerization. [0003] The hydrophobic monomers currently used generally only contain a vinyl structure, which has low reactivity, long ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G65/332
Inventor 陈桂娥吴文志许振良张平允金东元
Owner SHANGHAI INST OF TECH
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