A non-aggregation phthalocyanine grafted ma-va polymer light limiting material and preparation method thereof

Abstract

The invention discloses non-aggregated phthalocyanine MA-VA polymer and a preparation method thereof. The non-aggregated phthalocyanine MA-VA polymer is obtained by grafting amino-substituted chlorinated metal phthalocyanine with a high optical limiting effect to a polymer matrix, and exhibits circular distribution which has the lowest energy, so that aggregation of phthalocyanine molecules is avoided effectively. The polymer exhibits an excellent optical limiting property, and both absorption molar extinction coefficient delta epsilon T which is obtained by subtracting absorption molar extinction coefficient of the ground state from that of the triplet state and nonlinear absorption coefficient (beta) are much higher than absorption molar extinction coefficient delta epsilon T and nonlinear absorption coefficient (beta) of ungrafted polymerized amino-substituted chlorinated metal phthalocyanine. Therefore, the non-aggregated phthalocyanine MA-VA polymer optical limiting material has excellent nonlinear absorption properties and practical values. In addition, the synthetic method has a simple operation process and low cost, and is suitable for industrial large-scale production.

Description

【Technical field】 [0001] The invention relates to a non-aggregation phthalocyanine grafted MA-VA polymer and a synthesis method of the polymer; in addition, the invention also relates to the application of the non-aggregation phthalocyanine grafted MA-VA polymer as an optical limiting material. 【Background technique】 [0002] Since the advent of lasers in the 1960s, laser technology has been widely used. In the late 1980s, laser technology began to be used in the military, and with the development of laser technology, the development and protection of laser weapons have become key issues that need to be solved in national defense research. Laser protection, especially the protection of human eyes, important optical precision instruments and aerospace devices, is highly valued by the military of various countries. Laser clipping materials have important research value in the protection against such weapons, and become a hot topic today. Among them, materials with macrocycli...

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Problems solved by technology

[0004] In view of the above existing problems, the present invention provides a non-aggregation phthalocyanine grafted MA-VA polymer optical limiting material, which solves the insufficient optical limiting performance caused by the aggregation effect of the phthalocyanine conjugated structure in the prior art To solve the problem, reduce or even eliminate the aggregation of phthalocyanine conjugated units through the distance between polymer grafted units, so as to effectively improve the optical limiting effect

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