Unlock instant, AI-driven research and patent intelligence for your innovation.

Thioether modified polyacrylate optics plastic and preparation method thereof

A polyacrylate and acrylate technology, applied in optics, optical components, instruments, etc., can solve the problems of poor monomer solubility, product scattering, affecting monomer solubility, etc.

Inactive Publication Date: 2012-11-14
JIANGSU UNIV
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, introducing benzene rings and halogen / sulfur / phosphorus elements into the side chains of acrylate polymers is a common method for increasing the refractive index of polyacrylates today (JP60124605). Less effective elements have little effect and will affect the solubility of monomers.
It is also an effective method to increase the refractive index by introducing sulfur into acrylate containing multiple double bonds to enter the polymer main chain during polymerization, but there is also the problem of poor solubility of monomers (JP-P-3-56459; Journal of applied polymer science, 1998,68:1791-1799), resulting in uneven mixing, scattering after polymerization, and low transmittance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Polymerize BES with ethoxylated bisphenol A methacrylate diester, change the molar ratio of mercapto groups and carbon-carbon double bonds (SH / C=C), add 0.2% total weight of initiator (AIBN), and then put the mixture in Pre-polymerize at 50°C for 40 minutes, remove air bubbles in vacuum at the same time, inject into the mold; place the glass mold containing the prepolymer at 50°C for 12 hours, then raise the temperature to 80°C within 4 hours, and heat up within 2 hours to 100°C, within 1 hour, raise the temperature of the oven to 120°C and keep it for 1 hour, and finally cool to room temperature and release the mold to obtain the polythioacrylate optical resin. The properties of the optical plastic obtained after curing are shown in Table 1.

[0020] SH / C=C Refractive index Transmittance at 600nm 1：0.8 1.5758 88.73 1：1 1.5765 89.59 1：1.2 1.5790 88.42

Embodiment 2

[0022] Copolymerization of BES and ethoxylated bisphenol A diester methacrylate with trimethylpropane (meth)methyl acrylate, keeping the molar ratio of mercapto and carbon-carbon double bonds (SH / C=C) at 1:1, and other The conditions are the same as in Example 1. The properties of the optical plastic obtained after curing are shown in Table 2.

[0023] The molar content of double bonds in trimethylpropane (meth)acrylate methyl ester Refractive index Transmittance at 600nm 0 1.5770 88.67 20 1.5755 89.15 40 1.5750 89.32 60 1.5745 89.73

Embodiment 3

[0025] Replace the trimethylpropane (meth)methyl acrylate in Example 2 with trimethylolpropane trimethacrylate, keeping the molar ratio of mercapto and carbon-carbon double bonds (SH / C=C) unchanged at 1:1 , other conditions are identical with embodiment 1. The properties of the optical plastic obtained after curing are shown in Table 3.

[0026] Mole content of double bonds in trimethylolpropane trimethacrylate % Refractive index Transmittance at 600nm 0 1.5762 89.59 20 1.5775 89.60 40 1.5780 89.65 60 1.5790 89.48

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a thioether modified polyacrylate optics plastic and a preparation method of the thioether modified polyacrylate optics plastic. The method is characterized by comprising the steps of uniformly mixing the mixture of thiol containing a plurality of thioether bonds and a plurality of sulfydryl and acrylate containing a plurality of double bonds and an initiator, pre-polymerizing at 50 DEG C for 40 minutes so as to obtain a prepolymer, carrying out vacuum debubbling and filling into a glass mold to be baked for 12 hours at 50 DEG C, and rising the temperature to 80 DEG C in a drying oven within 4 hours, rising the temperature to 100 DEG C in the drying oven within 2 hours and rising the temperature to 120 DEG C in the drying oven within 1 hour successively, and keeping the temperature for 1 hour, and finally cooling to the room temperature and demolding so as to cure and mold the thioether modified polyacrylate optics resin. The product prepared by using the method is high in refractive index and good in transmissivity at the same time. The polymer optics plastic provided by the method can be used for various fields and is applicable for manufacturing various optics elements and mirrors formed by the optics elements.

Description

technical field [0001] The present invention relates to the preparation method of resin used in optical materials such as plastic lenses, prisms, optical fibers, information recording plates, filter plates, light-emitting diodes, etc. The ester compound is in-situ polymerized in a glass mold to prepare polythioacrylate optical resin, which is especially suitable for ophthalmic lenses with high refractive index. technical background [0002] Compared with inorganic glass lenses, plastic lenses have the advantages of low density, light weight, good impact resistance, not easy to break, easy to process and can be dyed, etc. In recent years, they have been widely used in industry, agriculture, communications, aerospace and daily life. Applications, such as being used to make various lenses in glasses, cameras and other products and light guide devices for military optical instruments. At present, the resin widely used in the preparation of optical device lenses is the free radi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/02G02B1/04C08G75/045
Inventor 盛维琛谈静吴萍陈桥曹顺生
Owner JIANGSU UNIV