Low-valence manganese catalyst and preparation and application thereof in perfluoropolyether modified siloxane

The invention belongs to the field of organic polymer synthesis and application thereof, and particularly relates to a low-valence manganese catalyst and preparation and application of the low-valence manganese catalyst in perfluoropolyether modified siloxane. The valence state of manganese in the low-valence manganese catalyst is-1 valence, compared with zero valence or + 1 and + 3 valence manganese, the low-valence manganese catalyst is higher in reducing capacity and catalytic activity, and the catalytic efficiency of the manganese catalyst is further improved. The anti-fingerprint adhesive prepared from perfluoropolyether modified siloxane has the excellent characteristics of hydrophobicity and oleophobicity, high transparency and good friction resistance. The preparation method disclosed by the invention is simple to operate, simple in process and convenient for industrial production. Meanwhile, the used raw materials are cheap, easy to obtain and low in cost, and popularization and application in produc