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Polycarbonate resin, preparation method and formed optical component

A polycarbonate resin, polycarbonate technology, used in the field of preparation, optical components, polycarbonate resin, can solve problems such as inability to meet application requirements

Active Publication Date: 2021-01-22
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The published patent CN102471467B reports a polycarbonate copolymer synthesized from 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene as a monomer, but its highest refractive index is only 1.644, which cannot meet the application requirements
[0004] Published patent CN106029735B reports that polycarbonate synthesized with 10,10-bis(4-hydroxyphenyl)anthrone as a monomer has a refractive index of 1.66, although compared with 9,9-bis[4-(2-hydroxyl The refractive index of the polycarbonate copolymer synthesized by ethoxy) phenyl] fluorene has been improved to a certain extent, but there is still room for improvement

Method used

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  • Polycarbonate resin, preparation method and formed optical component
  • Polycarbonate resin, preparation method and formed optical component
  • Polycarbonate resin, preparation method and formed optical component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0126] Prepare dihydroxy compound Q1 according to the following synthetic route:

[0127]

[0128] (1) Synthesis of 10,10-bis(4-hydroxyethoxyphenyl)-9-hydrogen-anthracene

[0129] A 1L three-necked flask was placed in a constant temperature oil bath, and 194g of anthrone and 260g of phenoxyethanol were added for condensation reaction (the molar ratio was 1:2.1). The catalyst was 10g of concentrated sulfuric acid, and the auxiliary agent was 2.12g of mercaptopropionic acid. The temperature is 40°C, after stirring for 4 hours, the progress of the reaction is confirmed by HPLC, and the reaction is terminated when the residual amount of anthrone is below 0.1%.

[0130] Add 200g of methanol to the obtained reaction solution, ultrasonically dissolve, then add 200g of deionized water, a large amount of solids are precipitated, continue to stir at this temperature for 2h, cool down and suction filter to obtain a solid crude product; add the crude product to 200g of isopropanol In ...

Embodiment 2

[0138] [Preparation Example 2] (synthesis of dihydroxy compound Q2)

[0139] The reaction conditions are basically the same as those in Preparatory Example 1, except that the phenol in step (3) is changed to biphenyl to prepare the target product Q2, and its NMR hydrogen spectrum test data is as follows:

[0140] 1 H NMR (400MHz, CDCl 3 )δ7.52(d, J=8Hz, 4H), 7.51(d, J=8Hz, 4H), 7.41(d, J=8Hz, 2H), 7.33(d, J=8Hz, 4H), 7.31(d ,J=8Hz,4H),7.29(d,J=8Hz,4H),7.19(d,J=8Hz,4H),7.12(d,J=8Hz,4H),6.87(d,J=8Hz,4H ), 4.33(t, J=8Hz, 4H), 3.69(t, J=10Hz, 4H), 3.65(s, 2H).

Embodiment 3

[0141] [Preparation Example 3] (synthesis of dihydroxy compound Q3)

[0142] Reaction condition is substantially the same as preparation example 1, and difference is: the phenol in the step (3) is changed into o-cresol, prepares target product Q3, and its NMR hydrogen spectrum test data is as follows:

[0143] 1 H NMR (400MHz, CDCl 3 )δ7.31(d, J=8Hz, 4H), 7.19(d, J=8Hz, 4H), 7.12(d, J=8Hz, 4H), 6.93(s, 2H), 6.87(d, J=8Hz ,6H),6.71(d,J=8Hz,2H),5.35(s,2H),4.33(t,J=8Hz,4H),3.69(t,J=10Hz,4H),3.65(s,2H) ,2.15(s,6H).

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Abstract

The invention provides polycarbonate resin, a preparation method and a formed optical component. The polycarbonate resin comprises polycarbonate with a structural unit as shown in the following formula; In the formula, R1-R2 each independently represents a hydrogen atom, a hydroxyl group, an alkyl group having 1-20 carbon atoms, an alkoxy group having 1-20 carbon atoms, a cyclic carbon group having 5-20 carbon atoms, a cyclic carbon oxygen group having 5-20 carbon atoms, an aryl group having 6-20 carbon atoms, or an aryloxy group having 6-20 carbon atoms; X represents an alkylene group having1-6 carbon atoms; and n is any integer between 1 and 10. The polycarbonate resin prepared by the invention has the advantages of high refractive index, low birefringence and small Abbe number.

Description

technical field [0001] The invention relates to a polycarbonate resin, in particular to a polycarbonate resin, a preparation method and an optical part formed therefrom. Background technique [0002] In recent years, with the thinner and thinner development of the shooting module in the optical system, higher and higher requirements have been put forward for the lenses in the optical lens. application requirements. At present, optical lens lenses with high refractive index and small Abbe number to form high dispersion are usually used in combination with optical lens lenses with low refractive index and large Abbe number to form low dispersion to correct chromatic aberration and meet thin and light design requirements . Therefore, the development of optical lens materials with high refractive index and small Abbe number can greatly reduce the thickness of the lens to meet the application requirements of light and thin optical systems. [0003] The published patent CN10247...

Claims

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Application Information

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IPC IPC(8): C08G64/06C08G64/30G02B1/04C08K5/526C08K5/103C08L69/00
CPCC08G64/06C08G64/305C08G64/307G02B1/041C08K5/526C08K5/103C08L69/00
Inventor 赵欣靳少华曾伟郭凤娇王磊
Owner WANHUA CHEM GRP CO LTD
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