Fluorene polymer with crosslinkable group, crosslinked film and preparation method thereof

A technology of cross-linking groups and polymers, which is applied in the field of cross-linked films and their preparation, can solve the problems of complex preparation and low cross-linking degree, and achieve the effects of simple preparation, fast cross-linking speed and convenient preparation
CN102010499AInactive Publication Date: 2011-04-13CHANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN ¡ China
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2011-04-13
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

The invention discloses a fluorene polymer with a crosslinkable group, a crosslinked film and a preparation method thereof, and relates to the field of preparation technology and application of organic semiconductor materials. The fluorene polymer has a molecular weight of 10,000 to 50,000; a C-9 position of fluorene contains allyl; and a molar ratio of a crosslinkable unit in the polymer can be adjusted. The preparation method for the crosslinked film is performed according to two conditions, namely, a crosslinkable polymer with allyl crosslinkable group can be crosslinked under the initiation of ultraviolet rays; and a polymer semiconductor without the crosslinkable group is mixed with the crosslinkable fluorene homopolymer serving as a crosslinking agent to be crosslinked through photo-initiation. The molar ratio of the crosslinkable unit in the prepared polymer can be adjusted. Compared with other crosslinkable luminous polymers, the fluorene polymer is simple in preparation and high in crosslinking speed, and has no influence on main luminous performance of the crosslinked luminous polymers.
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Description

technical field

[0001] The invention relates to the preparation technology and application field of organic semiconductor materials, and relates to the synthesis of crosslinkable fluorene homopolymers and copolymers with allyl groups in the C-9 position by Suzuki reaction (Suzuki coupling) and the crosslinked films prepared therefrom and its preparation method. Background technique

[0002] Among all kinds of electroluminescent conjugated polymers, polyfluorene derivatives have some attractive features: the fluorene unit is a rigid coplanar biphenyl structure, and the C-9 position can easily introduce various substituent groups to Improve solubility and supramolecular structure without causing significant steric hindrance to affect the conjugation of the main chain; polyfluorene derivatives have good thermal stability, light stability and chemical stability; polyfluorene derivatives The photoluminescence (PL) and electroluminescence (EL) efficiencies are appropriate and can...

Claims

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