Guanidine oligomer and its preparation method and its application bonded to general polymer molecular chains

A technology of oligomers and bonding, which is applied in the application field of guanidine oligomers and their preparation methods and bonding to general polymer molecular chains, and can solve problems that affect the mechanical properties of materials and cannot function

Active Publication Date: 2019-08-06
SHANGHAI FUYUAN PLASTICS SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is a common problem and deficiency in many of the above-mentioned inventions, or in the molecular structure of the guanidine oligomer itself
That is, in the process of oligomer condensation polymerization, the amine groups at both ends are not primary amines or guanidine salt amine groups, so whether it reacts with epoxy groups, isocyanate groups, carboxylic acids or acid anhydrides, it is tetrafunctional. , so cross-linking is very easy to occur during bonding reactions such as grafting and block, which not only seriously affects the mechanical properties of the material, but also makes the guanidine oligomers trapped inside the material and cannot function

Method used

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  • Guanidine oligomer and its preparation method and its application bonded to general polymer molecular chains
  • Guanidine oligomer and its preparation method and its application bonded to general polymer molecular chains
  • Guanidine oligomer and its preparation method and its application bonded to general polymer molecular chains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Get α, ω-tetraethylene glycol diamine 114g, 1,8-octyl diamine 94g, add respectively in two 500ml three-necked flasks, then respectively add 48g guanidine hydrochloride in two flasks respectively, under nitrogen gas Under protection, stir and heat up to 120°C, react for 2 hours, then combine the materials in the two flasks into one, and gradually heat up to 170°C to continue the reaction for 1.5 hours, and finally add 117g octadecylamine to react for 1.5 hours, Pour out while hot to obtain the guanidinium salt copolymer. After cooling down to 130°C, slowly add and dissolve in dimethylformamide (DMF), then cool to 80°C, add 30 g of maleic anhydride and react for 100 minutes, then separate the solvent to obtain the functional group shown in formula (4) The precursor of about 185g.

[0085] Take 800g of polyethylene (relative molecular mass 50000, equivalent to about 1700 for s in formula 3) and 200g of the precursor of the above functional group, add 32g of styrene into 1...

Embodiment 2

[0090] Take 70g of 1,6-hexamethylenediamine and 86g of 1,8-octanediamine and add them to two 1000ml three-necked flasks respectively, then add 48g of guanidine hydrochloride to each of the two flasks, and stir and Raise the temperature to 120°C, react for 2 hours, then combine the materials in the two flasks into one, and gradually raise the temperature to 165°C to continue the reaction for 1.5 hours, and finally add 117g of octadecylamine to react for 1.5 hours, and pour it out while hot to obtain Guanidinium Copolymer. Slowly add and dissolve in dimethylformamide (DMF) after cooling down to 130°C, then cool to 80°C, add 62g of glycidyl methacrylate, and 1.8g of B215 antioxidant, react for 100 minutes, and separate the solvent , that is to obtain the precursor of the functional group represented by formula (4), about 290g.

[0091] Take 800g of polypropylene (relative molecular mass 40000, equivalent to about 950 in formula 3) and 200g of the precursor of the above functiona...

Embodiment 3

[0096] Get α, omega-tetraethylene glycol diamine 115g, 1,4-butanediamine 53g, add respectively in two 500ml three-necked flasks, then respectively add 48g guanidine hydrochloride in two flasks respectively, under nitrogen Under protection, stir and heat up to 120°C, react for 2 hours, then combine the materials in the two flasks into one, and gradually heat up to 170°C to continue the reaction for 1.5 hours, and finally add 80g of laurylamine to react for 1.5 hours. Hot decanting to obtain guanidinium salt copolymer. After cooling down to 130°C, slowly add and dissolve in dimethylformamide (DMF), add 31g of acrylic acid, and 1.8g of B215 antioxidant, react for 200 minutes, separate the solvent, and obtain the precursor of the functional group represented by formula (4) Body, about 290g.

[0097] Take 800g of polyethylene EVA (relative molecular mass: 20000) and 200g of the precursor of the above-mentioned functional groups, add 60g of styrene into 1500mL of xylene, then add 5...

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Abstract

A guanidine oligomer, a method for preparing same, and an application of the guanidine oligomer for being bonded to a molecular chain of a universal polymer. Compared with the prior art, a non-polar long-chain aliphatic R group structure is used for end-capping to obtain a guanidine oligomer end-capped with R which is -(CH2)4-18CH3. There are two extremely favorable results for doing this. First, due to the end-capping with the R group, the original tetrafunctionality is reduced to bifunctionality; during a bonding reaction with a polymer, no cross-linked structure would be formed, but an overhanging structure on a molecular chain is formed; and this is favorable for dispersion on the surface of a material. Moreover, due to the non-polar long-chain aliphatic R group structure, it is easy to achieve distribution on the surface in a non-polar polyolefin, so as to pull the molecular chain of the guanidine oligomer toward the surface and exerting its functionalization. The guanidine oligomer can be widely used in the fields of universal high / low molecular weight polyolefins and universal condensation polymers, and make the universal high / low molecular weight polyolefins and universal condensation polymers antistatic, easy to dye, and resistant to harmful microorganisms.

Description

technical field [0001] The invention relates to the fields of daily necessities, biological materials and chemical products, in particular to a guanidine oligomer, a preparation method thereof and the application of bonding on a universal polymer molecular chain. Background technique [0002] Guanidine and its oligomers have excellent anti-harmful microbial functions, so they have been widely used in the medical and health field. In recent years, guanidines and their oligomers have become more and more obvious to show the trend of developing into the fields of medical and health materials, biological materials and daily necessities materials. Peng Kaimei et al., Acta Chemical Sinica, 2016, 74, 713-725, disclosed in detail the research and application of guanidines and their oligomers at home and abroad, as well as their development trends. [0003] CN1292397 B, CN1350022, CN1351086, US 7,282,538 B2, EP 1486519 B1, Japanese Patent Application No. 2003-576488, and US 7,531,22...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/00C08G81/02C08F255/02C08F212/08C08L87/00
CPCC08F255/023C08F255/026C08G73/00C08G81/024C08L87/005
Inventor 郑安呐管涌危大福许祥
Owner SHANGHAI FUYUAN PLASTICS SCI CO LTD
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