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Mesogen-jacketed polymer monomers of norbornene imide system and polymers of polymer monomers

A technology of alkenyl imide and chitosan, which is applied in the field of chitosan polymer of norbornene imide system and its preparation, which can solve the problem of long synthesis route of MJLCP monomer, non-functionality of the main chain, and production conditions Harshness and other problems, to achieve the effect of simplifying the solvent treatment process, simplifying the synthesis route, and high reaction yield

Inactive Publication Date: 2013-07-10
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a novel MJLCP monomer and its synthesis method to solve the problems of long synthesis route, difficult synthesis, harsh production conditions and nonfunctional main chain of MJLCP monomer

Method used

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  • Mesogen-jacketed polymer monomers of norbornene imide system and polymers of polymer monomers
  • Mesogen-jacketed polymer monomers of norbornene imide system and polymers of polymer monomers
  • Mesogen-jacketed polymer monomers of norbornene imide system and polymers of polymer monomers

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Embodiment

[0042] Embodiment: the preparation of poly-2,5-dicarboxylate phenyl norbornene imide

[0043]The preparation reaction route of poly-2,5-dicarboxylic acid diester phenyl norbornene imide is as follows:

[0044]

[0045] 1. Synthesis of 2,5-dicarboxylic acid phenyl norbornene imide intermediate:

[0046] Add cis-5-norbornene-exo-2,3-dicarboxylic anhydride (2.00g, 12.2mmol) and glacial acetic acid (30ml) into the three-necked flask, add 2,5- Dicarboxyaniline (2.21g, 12.2mmol) (completely added in 30 minutes), after reacting for 12h, pour the reaction solution into about 100ml of cold water, filter, and dissolve the yellow filter residue in saturated NaHCO 3 Aqueous solution, filter out insoluble matter, acidify the filtrate to pH=2 with hydrochloric acid under vigorous stirring, filter, wash the filter cake with water until neutral, and dry to obtain 3.03 g of white solid. Yield 76%. 1 H NMR (400MHz, DMSO, δ, ppm): 13.53(s, 2H), 7.77-8.11(m, 3H), 6.37(s, 2H), 3.19-3.26(d, 2...

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Abstract

The invention discloses mesogen-jacketed polymer monomers of a norbornene imide system and polymers of the polymer monomers. Mesogen-jacketed liquid crystal polymers (MJLCP) of which the main chains are polynorbornene imide systems have main chain and lateral group functionality, so that the problem that the main chains do not have functionality in the functional process of the MJLCP and new possibility is provided for application of the MJLCP in multiple fields. The MJLCP is obtained by a ring-opening metathesis polymerization method, so the polymerization modes of the MJLCP monomers are expanded, the monomer conversion rate is high, and the relative molecular mass of the polymers is high and is distributed narrowly. The polymers have very good application prospect in the fields of functional materials, photoinduced electron transfer, photonic devices and the like.

Description

technical field [0001] The invention relates to polymer monomers and polymers thereof, in particular to a norbornene imide-based carapaceous polymer and a preparation method thereof. Background technique [0002] The construction of supramolecular structures of fine shape and size by self-assembly of engineered functional polymers is one of the most important research contents at present. This strong research interest lies in their broad applications in supramolecular polymer chemistry and materials. potential. Among the various existing supramolecular assembly systems, Mesogen-jacketed Liquid Crystal Polymers (MJLCP) is a special kind of polymer, which belongs to side-chain liquid crystal polymers in terms of chemical structure. MJLCP with styrene backbone can be controlledly synthesized by radical polymerization of styrenic monomers to obtain polymers with controllable molecular weight and narrow molecular weight distribution. In terms of physical properties, due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/76C08G61/12C08F132/08
Inventor 范星河朱宇峰沈志豪周其凤
Owner PEKING UNIV
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