Aminofunctional carboranes, methods of making and uses thereof

A simplified preparation method was used to synthesize amino-functionalized carboranes, solving the problems of low preparation efficiency and safety hazards in existing technologies, thereby improving the performance of epoxy resins and making them suitable for aerospace and nuclear reaction fields.

CN119264167BActive Publication Date: 2026-06-26SICHUAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SICHUAN UNIV
Filing Date
2024-09-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing methods for preparing amination carboranes have safety concerns, low efficiency, and are not suitable for large-scale production. As a result, research on the performance of modified resins has focused on heat resistance, while research on mechanical properties and glass transition temperature is lacking, and the modification process is complex.

Method used

Amine-functionalized carborane was prepared by reacting a decborane-acetonitrile complex with alkyne-containing and halogen compounds, purifying it by solvent extraction, and then reacting it with amine compounds and bases to remove the Boc protecting group. This carborane was then used to modify epoxy resins.

Benefits of technology

This method enables efficient and convenient large-scale preparation of amino-functionalized carboranes, significantly improving the heat resistance, mechanical properties, and glass transition temperature of epoxy resins, making them suitable for aerospace equipment and nuclear reactor protective layers.

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Abstract

The application provides an amine group functionalized carborane and a preparation method and application thereof, and belongs to the field of advanced functional materials. The preparation method of the amine group functionalized carborane comprises the following steps: (1) a decaborane-acetonitrile complex and a compound containing an alkyne group and halogen are used as raw materials to react in a solvent; (2) after the reaction is completed, a solvent extraction method is used for post-treatment to obtain chlorinated carborane; (3) the chlorinated carborane obtained in the step (2), an amine compound and an alkali are used as raw materials to react in a solvent; (4) a product obtained after the reaction in the step (3) is subjected to removal of a Boc protecting group, and the amine group functionalized carborane is obtained. The amine group functionalized carborane is used for modifying resin, and the heat resistance, mechanical properties and glass transition temperature of the resin can be significantly improved. The modified resin can be used for various parts in aviation equipment and a protective layer of a nuclear reactor, and has a wide application prospect in the fields of aviation and spaceflight and nuclear reaction.
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