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Macromer compound with porous cross-linking structure and preparation method thereof

A technology of cross-linked structure and macromonomer, which is applied in the field of processing and preparation of macromonomer compounds to achieve the effect of stabilizing the structure

Inactive Publication Date: 2008-05-28
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Macromer compound with porous cross-linking structure and preparation method thereof
  • Macromer compound with porous cross-linking structure and preparation method thereof
  • Macromer compound with porous cross-linking structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The poly(2-methyl-1,3-adipate propyl ester) and 2.7g diisocyanate that take by weighing 10g dihydroxyl-terminated are dissolved in 40ml acetone respectively, and diisocyanate acetone solution is transferred in the there-necked flask, polyadipate Transfer the isobutylene adipate acetone solution into a separatory funnel, add 0.1g of dibutyltin dilaurate, slowly drop the polyisobutylene adipate acetone solution into a three-necked flask, stir, and react in a water bath at 35°C for 5 hours , the temperature of the water bath was raised to 50°C, 1.6g of hydroxyethyl methacrylate and 0.05g of dibutyltin dilaurate were added, the stirring was continued, the reaction was carried out for 5 hours, and the material was discharged to obtain a macromonomer acetone solution with a macromonomer weight concentration of 26 %. Structural formula such as (1), wherein: n=10;

[0033] The molecular weight of dihydroxy-terminated poly(2-methyl-1,3-propyl adipate) was 2,000.

[0034] The i...

Embodiment 2

[0045] Add 0.1 g of benzoyl peroxide and 6 g of polyhydroxybutyrate valeric acid copolyester into 45 g of the above-mentioned macromonomer acetone solution, stir, pour the solution into a petri dish, put it in an oven, and evaporate at 50 ° C Solvent, and then place the material on a flat bed (model XLB-D350) produced by Shanghai Dehong Rubber and Plastic Machinery Co., Ltd. to press the film.

[0046] The macro monomer thermally initiates cross-linking polymerization under the action of an initiator, the curing temperature is strictly controlled at 70°C, the cross-linking time is 30 minutes, and the material is discharged to obtain a cured cross-linked polymer film.

[0047]Then soak the cured cross-linked polymer film in acetone for 24 hours to wash away the polyhydroxybutyrate copolyester to obtain the product. The measured porosity is 55% (chemical fiber irregularity test method FZ / T 50002-1991).

[0048] The test results are as follows:

[0049] Using dichloromethane as...

Embodiment 3

[0054] Add 0.12g of potassium persulfate and 4g of polyhydroxybutyrate valeric acid copolyester into 45g of the above-mentioned macromonomer acetone solution, stir, pour the solution into a petri dish, put it into an oven, and evaporate the solvent at 50°C. Then the material is placed on a flat vulcanized bed (model XLB-D350) produced by Shanghai Dehong Rubber and Plastic Machinery Co., Ltd. to press the film.

[0055] The macro monomer thermally initiates cross-linking polymerization under the action of an initiator, the curing temperature is strictly controlled at 60°C, the cross-linking time is 45 minutes, and the material is discharged to obtain a cured cross-linked polymer film.

[0056] Then soak the cured cross-linked polymer film in acetone for 24 hours to wash away the polyhydroxybutyrate copolyester to obtain the product. The measured porosity is 65% (chemical fiber irregularity test method FZ / T 50002-1991).

[0057] The test results are as follows:

[0058] Using ...

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Abstract

The invention discloses a process for preparing big monomer compound which is provided with porous crosslinking structure, and is characterized in that (1) 88-40 parts by weight of big monomer, 12-60 parts by weight of degradable polyester and 0.2-2% initiator in the total mass of the big mass and the degradable polyester are dissolved in the organic solvent to be dried then. (2) The above dried blended materials are pressed by diaphragm and heated and crosslinked simultaneously, and the crosslinked product is placed in the organic solvent to extract and wash or degrade the degradable polyester in the nutrient solution in order to prepare the target product. The obtained big monomer compound which is provided with porous crosslinking structure through using the above process is stable in structure, precise in size and compatible in biology, which can be widely used in the filtering, reinforced enhanced material, medical, tissue support engineering fields and the like.

Description

technical field [0001] The invention relates to a processing preparation method and application of a class of macromonomer compounds. Background technique [0002] Unsaturated polyester is a very common thermosetting material. It is obtained by polycondensation of diols and dibasic acids. It has excellent mechanical properties, electrical properties, chemical corrosion resistance, oxidation resistance and weather resistance. Raw materials It is easy to obtain and the processing technology is simple, so it has developed rapidly abroad in recent years, and it is one of the fastest-growing varieties of thermosetting materials. It has been widely used in glass fiber reinforced materials, casting products, wood coatings, sanitary ware and handicrafts, etc., and has a wide range of uses. In addition to the above characteristics, the preparation of polyester macromonomers by the reaction of isocyanic acid and alcohol compounds also has the characteristics of excellent biocompatibi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/91C08G81/00C08L67/00C08J3/24C08J9/00
Inventor 张瑜陈彦模刘峻俞昊陈龙朱美芳张菁菁郭晓
Owner DONGHUA UNIV
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