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Dendritic polymer with POSS group and preparation method thereof

A dendritic and polymer technology, applied in the field of POSS base, can solve the problem that dendritic polymers have no relevant literature reports

Active Publication Date: 2014-03-19
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant literature report on the preparation of dendrimers based on POSS units.

Method used

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  • Dendritic polymer with POSS group and preparation method thereof
  • Dendritic polymer with POSS group and preparation method thereof
  • Dendritic polymer with POSS group and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] (1) Preparation of POSS-based intermediate NH 2 -POSS- (vinyl) 7

[0076] Put octavinyl cage oligomeric silsesquioxane (T8) produced by American Hybrid Company and cysteamine in dimethylformamide at a molar ratio of 1:1, and add 0.1 equivalent of 2,2-dimethyl Oxygen-2-phenylacetophenone (DMPA), ultraviolet radiation reacted in 2 hours, after the reaction was finished, the product obtained was precipitated in ether, then by silica gel column chromatography (with tetrahydrofuran and normal hexane volume ratio of The mixed solvent of 6:1 is the eluting agent, purified by silica gel (200-300 mesh), and after vacuum drying, the slightly yellow product can be obtained, which is the POSS-based intermediate NH 2 -POSS- (vinyl) 7 ;

[0077] (2) Preparation of dendrimers NH with POSS groups 2 -POSS 8 -(isobutyl) 49

[0078] The NH prepared in step (1) 2 -POSS- (vinyl) 7 SH-POSS-(isobutyl) produced by American Hybrid Company 7 Add 0.2 equivalents of 2,2-dimethoxy-2-phen...

Embodiment 2

[0081] (1) Preparation of POSS-based intermediate COOH-POSS-(vinyl) 7

[0082] Put octavinyl cage oligomeric silsesquioxane (T8) and mercaptopropionic acid in chloroform at a molar ratio of 1:0.8, and add 0.15 equivalents of 2,2-dimethoxy-2-phenyl Acetophenone (DMPA) was reacted by ultraviolet radiation for 3 hours. After the reaction was completed, the product obtained was precipitated in ether, and then by silica gel column chromatography (with THF and n-hexane volume ratio as a 1:1 mixed solvent was Eluent, silica gel (200-300 mesh)) purification, after vacuum drying, a slightly yellow product can be obtained, which is the POSS-based intermediate COOH-POSS-(vinyl) 7 ;

[0083] (2) Preparation of dendritic polymer COOH-POSS with POSS groups 8 -(cyclopentyl) 49

[0084] COOH-POSS-(vinyl) prepared in step (1) 7 SH-POSS-(cyclopentyl) produced by American Hybrid Company 7 Add 0.2 equivalents of azobisisobutyronitrile (AIBN) to tetrahydrofuran at a molar ratio of 1:7, heat...

Embodiment 3

[0088] (1) Preparation of POSS-based intermediate OH-POSS-(vinyl) 9

[0089] Decavinyl cage oligomeric silsesquioxane (T10) (synthesized according to J.Am.Chem.Soc.2013, 135, 12259-12269) and mercaptoethanol in dichloro In methane, add 0.3 equivalents of 2,2-dimethoxyl-2-phenylacetophenone (DMPA), and react with ultraviolet radiation for 3.5 hours. 1:1) in a mixed solvent, and then purified by silica gel column chromatography (dichloromethane and n-hexane volume ratio of 1:1 mixed solvent as eluent, silica gel (200-300 mesh)) purification, vacuum After drying, the slightly yellow product can be obtained, which is the POSS-based intermediate OH-POSS-(vinyl) 9 ;

[0090] (2) Preparation of dendritic polymer OH-POSS with POSS groups 10 -(isobutyl) 63

[0091] The OH-POSS-(vinyl) prepared in step (1) 9 With SH-POSS-(isobutyl) 7 Add 0.2 equivalents of azobisisobutyronitrile (AIBN) to chloroform at a molar ratio of 1:30, heat to 60°C and stir for 8 hours, then precipitate th...

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Abstract

The invention relates to a dendritic polymer with POSS group and preparation method thereof. The preparation of the product comprises the following steps: designing a POSS group intermediate R2-POSS-(R1)n-1 (n=6, 8, 10, 12) with asymmetric structure, and then using a chemical synthetic method, and obtaining a dendritic polymer (containing derivatives thereof) containing POSS group and a lot of end functional groups. The product has the advantages of unique structure design and diversified selections, thereby the product has latent application prospects for the aspects of surfactant, biological medicine carrier, catalyst, photon crystallization, optical material, anti-corrosion material, electronic material, information recording material, printing material, battery material, magnetic material, electronic luminescent device, etc.

Description

technical field [0001] The invention relates to POSS bases, in particular to dendritic polymers with POSS bases and a preparation method thereof. Background technique [0002] Dendrimers are a new class of synthetic polymers that have emerged in recent years, with fully branched and regular molecular structures, perfect monodispersity, nanoscale size, a large number of terminal functional groups, and numerous internal cavities. , good solubility, low viscosity and easy rheology, especially suitable for functional modification of organic polymer materials. [0003] A large number of terminal groups is the most significant feature of dendrimers. With the increase of dendritic polymer generations, the number of terminal groups will increase rapidly in an exponential manner. When the reactive characteristic functional group is connected to the terminal group, a reactive functional group with a very high density will be formed, so it is expected to be applied to a high-sensitivi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C07F7/21
Inventor 吴德成王星
Owner INST OF CHEM CHINESE ACAD OF SCI
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