40results about How to "Good solution processability" patented technology

There is provided p-type organic polymers of general formula I. The polymers may be useful as semi-conducting material. Thus, thin films and devices comprising such polymers are also provided.

The invention relates to a process of preparing disubstituted 9-alkylidenefluorenes and structure analogous compounds, to novel compounds and intermediates prepared by this process, their use for the preparation of conjugated polymers and copolymers thereof, and to novel polymers and copolymers thereby prepared.

The invention discloses a preparation method of polyphenyl ether thioether sulfoxide. The polyphenyl ether thioether sulfoxide comprises the following ingredients: 4,4'-dyhydroxy diphenyl sulfide and 4,4'-dihalogen diphenylsulfoxide as the reaction monomer of which the mole ratio is 1: 1.02, 1.1-2.5mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the assistant, 0.1-0.5 mole / mole of 4,4'-dyhydroxy diphenyl sulfide as the catalyst, 1000-2000ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the solvent, and 300-500ml / mole of 4,4'-dyhydroxy diphenyl sulfide as the azeotropy dehydrating agent. The process comprises the following steps of: (1) adding the ingredients into a reaction contain and stirring under the protection of nitrogen at the room temperature, rising the temperature, heating, and dehydrating, ending the dehydration when the temperature reaches 130-150 DEG C, subsequently rising the temperature to 170-220 DEG C and carrying out the polymerization reaction, when the reaction is ended, cooling naturally to the room temperature and stopping stirring; and (2) pouring the mixture liquid formed by the polymerization reaction into precipitating agent, precipitating and filtering so as to obtain a filter cake, washing the filter cake and drying in vacuum so as to obtain the polyphenyl ether thioether sulfoxide; and the structural formula is: (FORMULA).