Dendritic hyperbranched polymer as well as preparation method and use thereof

A kind of hyperbranched polymer and dendritic technology, which is applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems that are difficult to meet the requirements of future communication technology, transmission speed, capacity and space compatibility limit, and achieve good Three-dimensional bit separation effect, high second-order nonlinear optical effect, stability, and high yield

Active Publication Date: 2013-06-19
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, microelectronic materials with electrons as carriers are approaching their limits in terms of transmission speed, capacity, and space compatibility, and it is difficult to meet the technical requirements of future communications.

Method used

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  • Dendritic hyperbranched polymer as well as preparation method and use thereof
  • Dendritic hyperbranched polymer as well as preparation method and use thereof
  • Dendritic hyperbranched polymer as well as preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Synthesis of dendritic hyperbranched polymer DHPG0:

[0033] 1) In a 50mL Schlenk tube, add compound G0 (124.1mg, 2mmol), N-(6-azido)-3,6-dibromocarbazole (99mg, 2.2mmol), CuSO 4 ·5H 2 O (10mol%), 20% NaHCO 3 (20mol%) and sodium ascorbate (20mol%). Under argon protection, 5 mL of THF and 1 mL of water were added after deoxygenation, and reacted at room temperature for 3 hours. Water was added to the reaction system to quench the reaction. Extract with chloroform, combine the organic phases and spin dry with a rotary evaporator. The crude product was separated by silica gel column chromatography using chloroform / ethyl acetate (2 / 1, V / V) as the eluent to obtain 102 mg of a red solid with a yield of 95%.

[0034] IR(KBr),υ(cm -1 ):1723(C=O),1511,1341(-NO 2 ).

[0035] 1 H NMR (CDCl 3 ,300MHz)δ(TMS,ppm):1.26(s,br,4H,-CH 2 -),1.78(m,4H,-CH 2 -),2.32(t,J=6.9Hz,2H,-CH 2 C-),2.99(t,J=7.2Hz,2H,-CH 2 -),3.94(t,J=5.4Hz,2H,-NCH 2 -),4.21(t,J=6Hz,4H,-NCH 2 -),4.26(t,...

Embodiment 2

[0044] Synthesis of dendritic hyperbranched polymer DHPG1:

[0045] 1) In a 50mL Schlenk tube, add compound G1 (170.9mg, 1mmol), N-(6-azidohexyl)-3,6-dibromocarbazole (90mg, 2mmol), and add 5mL THF after deoxygenation, 0.25mL of 0.04mmol / mL CuSO 4 (10mol%) aqueous solution, 0.25mL of 0.08mmol / mL sodium pitascorbate (20mol%) aqueous solution, reacted at room temperature for 3 hours. An appropriate amount of water was added to the reaction system to quench the reaction. Extract with chloroform, combine the organic phases and spin dry with a rotary evaporator. The crude product was separated by silica gel column chromatography using chloroform / ethyl acetate (2 / 1, V / V) as the eluent to obtain 200 mg of a red solid with a yield of 93%.

[0046] IR(KBr),υ(cm -1 ):1723(C=O),1511,1341(-NO 2 ).

[0047] 1 H NMR (CDCl 3 ,300MHz)δ(TMS,ppm):0.94(t,J=7.2Hz,4H,-CH 2 -),1.26(s,br,4H,-CH 2 -),1.77(s,br,2H,-CH 2 C-),1.86(s,br,2H,-CH 2 -),2.22-2.30(m,4H,-CH 2 -),2.26(t,J=6.9Hz,4H,-...

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Abstract

The invention discloses a dendritic hyperbranched polymer as well as a preparation method and a use thereof. The structural formula of the polymer is shown in the specification, wherein R is a low-algebraic dendritic macromolecule based on azobenzene chromophore. The dendritic hyperbranched polymer is prepared through substitution reaction, click chemical reaction and suzuki reaction of 9-(6-azidohexyl)-3,6-dibromocarbazole, triphenylamine tri-band pinacol cyclic ester as well as the low-algebraic dendritic macromolecule based on azobenzene chromophore. The polymer disclosed by the invention is gentle in polymerization reaction conditions, high in yield, large in molecular weight and low in degree of dispersion. The polymer disclosed by the invention has good second-order nonlinear optical performance and thermal stability, and can be used as a second-order nonlinear optical material for being practically applied in the aspects of remote communication, data storage, data conversion, phase conjugation, signal modulation and the like.

Description

technical field [0001] The invention relates to a dendritic hyperbranched polymer, a preparation method and application thereof. Background technique [0002] The development of the field of macromolecules is inseparable from artificially synthesized polymers. From the 1730s to the present, scientists have synthesized countless polymers, which have found applications in many fields and greatly improved our daily lives. For synthetic chemists, designing and synthesizing new types of functional polymers is the most common way to push the field forward. For example, the synthesis of dendritic macromolecules is a major breakthrough in the synthesis of polymers. So far, due to their special structures and properties, dendrimers and hyperbranched polymers have been widely used in various fields such as physics, biology, engineering and so on. [0003] With the advent of the 21st century, today's society has become an information society, and the progress and development of huma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12G02F1/355G02F1/37
Inventor 李振武文博秦金贵
Owner WUHAN UNIV
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