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Second order nonlinear optical polyphosphonitrile linked with azoineolol chromogen pendant group and its preparation and use

A second-order nonlinear polyphosphazene technology, applied in optics, optical components, instruments, etc., can solve the problems of long synthetic routes and difficult separation of small molecules, and achieve convenient purification, mild reaction conditions, and simple synthesis Effect

Inactive Publication Date: 2003-11-19
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(Moon H., Hwang J., Kim N., Park S.Y., Macromolecules, 2000, 33:5116-5123.) However, the synthetic route reported in the literature is relatively long, and the separation of small molecules is not easy

Method used

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  • Second order nonlinear optical polyphosphonitrile linked with azoineolol chromogen pendant group and its preparation and use

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Embodiment 1

[0013] Example 1: R is an indole group and an ethoxy group, and when x is 0.30, the synthetic route is as follows:

[0014] The synthesis method is as follows: N-(2-hydroxyethyl) indole (3) and sodium hydride are placed in a Schlenk tube, tetrahydrofuran is added, and then reacted at 50° C. for 10 hours to obtain a tetrahydrofuran solution containing compound 3 sodium salt (mass The percentage concentration is 5-8%). The above solution was then transferred to a Schlenk tube containing a tetrahydrofuran solution of the polydichlorophosphazene intermediate, and reacted at 50° C. for two days. After cooling down to room temperature, a solution of sodium ethoxide in tetrahydrofuran was added, and the reaction was continued to stir at 50° C. for four days. The resulting mixture was pumped to remove most of the THF, poured into water and allowed to stand overnight. Filter to collect light yellow precipitate, wash with water several times, and dry. Dissolve in tetrahydrofuran ag...

Embodiment 2

[0017] R is a carbazole group, an indole group and an ethoxy group, and when x is 0.10, the synthetic route is as follows:

[0018] The synthesis method is: polyphosphazene 1 can be prepared by reacting N-(2-hydroxyethyl)indole, N-(2-hydroxyethyl)carbazole and sodium ethoxide with polydichlorophosphazene, and its preparation method can refer to The preparation method of polyphosphazene 1 in embodiment 1. Weigh 0.25 g of polyphosphazene 1, put it into a test tube, add 2 ml of N-methylpyrrolidone, stir at room temperature until the polymer is completely dissolved, and put it in an ice bath. phenyldiazonium fluoroborate, reacted under ice bath conditions for 8 hours, then added 0.3 g of anhydrous K 2 CO 3 , keep the ice bath condition, continue to stir for one hour, filter, wash the reaction test tube with tetrahydrofuran, collect the filtrate, remove the tetrahydrofuran under reduced pressure, add 40 ml of methanol, an orange-red precipitate can be obtained, filter, collect ...

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Abstract

A two-order non-linear optical polyphosphazene with coloring side group of azoindole is prepared through reaction of polyphosphazene whose side chain is linked with indole group on p-nitrophenyl diazofluoroborate. Its advantages are high two-order non-linear optical performance and better comprehensive properties.

Description

technical field [0001] The invention relates to a second-order nonlinear optical polyphosphazene macromolecule material connected with an azoindole chromophore, a preparation method and application thereof. Background technique [0002] Since the appearance of laser in the 1960s, the research on nonlinear optical materials has entered a new era. As one of the important material bases of laser technology, the study of nonlinear optics (NLO) materials is an important part of high-tech research. For more than 30 years, nonlinear optics has gradually developed into an independent branch of optics. Nonlinear optical materials play an indispensable role in various aspects of laser frequency doubling, frequency mixing, parametric amplification and oscillation, integrated optics, and optical communication. Important role, they can be used to control the phase, polarization state or frequency of light beams, and can also be used to store and restore information or deflect light beam...

Claims

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Application Information

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IPC IPC(8): C08G79/025C08G83/00G02B1/04
Inventor 李振秦金贵
Owner WUHAN UNIV
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