Method for preparing fullerene flower balls on surface of soft matrix

Abstract

The invention relates to a method for preparing fullerene flower balls on surface of a soft matrix. The method comprises the following steps: reacting fullerene C60, methyl / ethyl p-formylbenzoate and sarcosine in toluene under nitrogen protection, wherein the reaction temperature is 90-115 DEG C, the reaction time is 5-10 hours, separating and purifying to obtain a fullerene derivative; and (2) dissolving the fullerene derivative in a solvent, dripping the fullerene derivative on the soft matrix for naturally drying, thus obtaining the fullerene flower balls. A relatively small benzoate substituent group is introduced into the fullerene molecule, the content of fullerene in the obtained derivative is high and exceeds 70 percent, the operating process is simple and rapid, and the fullerene flower balls can be prepared on multiple soft matrixes and in a room temperature natural environment and have potential application prospects in the fields of functional textile materials and flexible materials.

Description

technical field [0001] The invention belongs to the field of functional nanometer materials, in particular to a method for preparing fullerene curds on the surface of a soft substrate. Background technique [0002] Fullerene (C 60 ) has attracted much attention in the field of functional nanomaterials science because of its special molecular structure and excellent optoelectronic properties. Recent studies have shown that by controlling the C 60 The self-assembled structure morphology can effectively improve the performance of functional materials (Guld D.M., et al, Chem. Soc. Rev., 2009, 38, 1587–1597). At present, many studies have reported that by modifying C 60 The surface achieves control of its self-assembled structure morphology, such as in different C 60 Among derivatives, spherical, rod-like, linear, disc-like, vesicular, tubular and complex flower-like structures have been observed (Babu S.S., et al, Chem.Soc.Rev., 2010, 39 , 4021–4035). Obtaining a large spe...

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Problems solved by technology

Obtaining a large specific surface area and a complex microscopic surface structure is particularly important for improving the performance of functional materials. It should be pointed out that in order to retain the inherent structure and properties of fullerenes to the greatest extent, it is generally necessary to use unmodified fullerenes or The self-assembled structure morphology is prepared by using fullerene derivatives modified to a small degree, but the obtained morphology is relatively simple and has a small specific surface area, such as spherical, linear, and rod-shaped shapes with smooth surfaces.

A recently reported fullerene derivative containing a long alkyl chain can self-assemble into a complex flower-like structure (Nakanishi T., et al, Small, 2007, 3, 2019–2023), but the disadvantage is that in this molecule The introduction of large substituents makes the content of fullerene itself in the obtained complex structure material less than 50%, which seriously weakens the inherent photoelectric properties of fullerene

Therefore, it is still challenging for fullerene-based functional materials to ensure high fullerene content and controllable preparation of complex self-assembled structures of fullerenes.

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