KR20050060639A - New fluoro styrene monomer with epoxy group and polymers using it for waveguide materials - Google Patents

Abstract

The present invention relates to a fluorinated styrene monomer having an epoxy substituent for an optical waveguide device and a polymer compound using the same. More particularly, the epoxy substituent represented by the following Chemical Formula 1 is controlled by controlling the reactivity of various fluorinated styrene compounds and epoxy compounds. The present invention relates to a new aliphatic and aromatic polymer compound prepared by producing a fluorinated styrene monomer and synthesized using the same. The monomer of the present invention and the two-component / three-component polymer using the same have excellent thermal, mechanical, and electrical properties, and have low absorption in the near infrared region, thereby minimizing light transmission loss due to absorption. By cross-linking to have thermal and chemical stability. In addition, if the refractive index is controlled by adjusting the content of two different monomers, it can be utilized as a polymer material for optical communication with a wide selection of the core layer material and the cladding layer material, and especially the silica refractive index range. Since it is similar to, it is possible to implement a composite device using the advantages of heterogeneous by mixing with silica.

[Formula 1]

Description

New fluoro styrene monomer with epoxy group and polymers using it for waveguide materials}

The present invention relates to a fluorinated styrene monomer having an epoxy substituent for an optical waveguide device and a polymer compound using the same. More particularly, the epoxy substituent represented by the following Chemical Formula 1 is controlled by controlling the reactivity of various fluorinated styrene compounds and epoxy compounds. A new aliphatic and aromatic polymer compound synthesized by using a fluorinated styrene monomer and synthesized by using the same, and these monomers and the two-component / three-component polymers using the same have an epoxy substituent and have excellent thermal, mechanical and electrical properties in the near infrared region. As the absorption is small, the optical transmission loss due to absorption can be minimized, and the refractive index can be controlled by adjusting the content of two different monomers, which can be used as a polymer material for optical communication with a wide range of choice. Similar to it relates to a composite silica and mixed by the device implementation with the advantages of heterogeneous fluorinated styrene monomer and the polymeric compound.

[Formula 1]

Until now, optical device components have been developed based on semiconductor materials and inorganic materials for high speed optical communication. However, the performance of these optical device parts has almost reached the material's limit performance, and the production price is very high. In particular, the development of new materials is urgently needed to overcome the limitations of materials and further develop them in order to realize the high-speed information and communication society in the future. For this reason, research into organic polymer materials has recently been the subject of interest as future optical device materials. The organic polymer material may be used for low speed and high speed space division optical devices, filter devices, light exchange devices, and the like. However, although the organic polymer material is superior to the inorganic material currently used, the reason that it has not been commercialized until now is that the optical properties of the organic polymer material are the thermal instability and the optical communication wavelength range of 1.3 μm or 1.55 μm. This is because the optical transmission loss due to light absorption of the CH-coupled double oscillation band becomes large. For this reason, the development of organic polymers has been very limited. However, polymer optical waveguide material has many advantages over silica, inorganic material, in terms of fine refractive index control, multilayer stackability, dimensional stability and flexibility, connectivity, ease of integration with micro-optical components, and economic efficiency, excluding thermal stability and light propagation loss. Have

The optical loss of the optical waveguide is due to the inherent light absorption, inherent light scattering, and external factors. In addition, the intrinsic light absorption loss of the material is caused by the absorption of higher order harmonic vibration of C-H bonds in the molecule, contamination of organic matter, absorption of O-H molecules due to hygroscopicity, transition metal impurities, and the like. However, the light loss due to light scattering of the polymeric material is due to Rayleigh scattering loss, which is almost negligible. In addition, the optical loss due to external factors is due to inaccuracies, cracks, impurities, etc. caused in the process, which can be overcome by minimizing the process.

In order to synthesize a polymer suitable for a low loss optical waveguide, it is necessary to minimize absorption of polymer material inherent from the molecular design stage. In general, the polymer material has an inherent absorption region due to vibration in the molecular structure in the infrared region.

In particular, the vibration absorption loss in the near infrared region by C-H, O-H, and N-H coupling is caused by the second and third harmonic back vibrations. This optical loss problem is solved by substituting C-H bonds with deuterium C-D, C-F, C-Cl, etc. to increase the converted mass, and the harmonic back vibration shifts to longer wavelengths. Absorption loss due to C-D bond is significantly decreased at 1.3 mu m compared with absorption loss due to C-H bond, but strong harmonic back vibration absorption peak at 1.55 mu m. However, when substituted with fluorine and chlorine, there is almost no loss due to absorption over 1.1 to 1.7 mu m.

It is very important to control the refractive index of the waveguide layer and the buffer layer to fabricate the optical waveguide device. To this end, the refractive index of the polymer material can be easily adjusted using copolymerization. By using this copolymerization, the difference in refractive index can be adjusted to 0.0001. More important is the development of a material without birefringence. In order for an optical device to operate without polarization, the difference in refractive index between the TE mode and the TM mode, that is, the birefringence, must satisfy (λ _TE -λ _TM ) <(1/10) Δλ. In the case of a polymer material, copolymerization or other polymers may be used to reduce this.

Planar waveguide optical devices using the early polymer optical waveguide materials have been mainly studied using polymethyl methacrylate (PMMA). Japan's NTT (Japanese trade name) uses a deuterated PMMA and a PMMA substituted with dihydrogen and fluorine to realize a very low loss optical device with an optical loss of 0.08dB / cm at 1.3㎛. However, PMMA system has poor thermal stability with Tg of about 100 ° C. In order to solve this problem, NTT has developed a thermosetting polysiloxane substituted with deuterium whose pyrolysis temperature is higher than 400 ° C. It has a relatively good optical loss of 0.43 dB / cm at 1.55 mu m, especially birefringence. In addition, various types of fluorine-substituted polyimides having excellent heat resistance and processability have been developed and presented.

In addition, a polymer having a disadvantage of having a large birefringence is intended to make a polymer having almost no birefringence by synthesizing a structure of a polyimide having a nonlinear structure and a polyimide having a flexible group rather than a curved structure or a linear structure. Research is ongoing.

However, it is difficult to expect remarkable results in these studies, and some developed materials still have a lot of room for improvement.

The present inventors have long researched to solve the problems appearing in the conventional optical communication materials as described above and to develop improved optical communication materials that can broaden the application field while having excellent physical properties. As a result, various fluorinated styrene compounds and epoxy compounds Synthesis of fluorinated styrene monomers having epoxy substituents represented by the general formula (1) by controlling the reactivity with them, and the synthesis of aliphatic, aromatic binary / three-component polymers using them have epoxy substituents, resulting in excellent thermal, mechanical and electrical properties. It has a low absorption in the near-infrared region, and can minimize the optical transmission loss due to absorption. Also, by controlling the refractive index by adjusting the content of two different monomers, it can be used as a polymer material for optical communication with a wide choice. Especially silica refractive index range Since it is similar to and realized with the fact that it is possible to realize a composite device using the advantages of heterogeneous mixed with silica, the present invention was completed.

Accordingly, an object of the present invention is to provide a fluorinated styrene monomer having an epoxy substituent.

It is also an object of the present invention to provide a two-component / three-component high molecular compound synthesized using a fluorinated styrene monomer having an epoxy substituent.

It is also an object of the present invention to provide a fluorinated styrene monomer having an epoxy substituent useful as an optical communication material and a polymer compound thereof.

It is also an object of the present invention to provide a fluorinated styrene monomer having an epoxy substituent useful for an optical waveguide device and a polymer compound thereof.

It is also an object of the present invention to provide a fluorinated styrene-based monomer and a polymer compound thereof that can be used in combination with silica to implement a composite device by using the heterogeneous advantages.

It is also an object of the present invention to provide an optical waveguide device of preferred physical properties consisting of a fluorinated styrene-based monomer having an epoxy substituent or a high molecular compound thereof.

Hereinafter, the present invention will be described in detail.

The present invention is characterized by a fluorinated styrene monomer having an epoxy substituent represented by the following formula (1) which is useful as a polymer material.

The compound of Formula 1 is a fluorinated styrene monomer having a structure having an epoxy substituent and lowers the optical loss due to absorption by CH bonds, and is used to synthesize high molecular compounds for two-component, three-component, or various optical communication materials. Can be.

According to the present invention, the compound of Chemical Formula 2 may be synthesized using the compound of Chemical Formula 1.

In addition, by using the compound of Formula 1 of the present invention it is possible to synthesize a polymer compound of the formula (3).

R ₁ in Formula 3 represents -CH ₃ , -H, -F, -Cl;

R ₂ is

Indicates. Here, P is 1 or 2, n is an integer of 1-40, R represents the alkylene group, chain, branch, cyclic structure which has 1-8 carbon atoms. x, y may vary the composition ratio according to the refractive index, each means an integer of 10 to 100 irrespective of each other.

In addition, according to the present invention it is possible to synthesize a polymer compound of the following formula (4) using the compound of formula (1).

In Formula 4, R _1, R _{2, and} R ₃ are the same as defined in Formula 3, and a, b, and c may be different in composition ratio according to refractive index, and each represents an integer of 10 to 100 regardless of each other. do.

Aliphatic, aromatic polymers or two-component / three-component polymers, such as the polymer compounds of Formulas 2 to 4, have an epoxy substituent and have excellent thermal, mechanical, and electrical properties, and have low absorption in the near infrared region, thereby preventing optical transmission loss due to absorption. It can be minimized. In addition, these polymer compounds can be utilized as polymer materials for optical communication having a wide range of choice if the refractive index is controlled by controlling the content of two different monomers in the synthesis process. In particular, since the polymer compound according to the present invention is similar to the silica refractive index range, it can be used in combination with silica to realize a composite device using advantages between heterogeneous compounds.

On the other hand, according to the present invention, the synthesis process of the fluorinated styrene monomer having an epoxy substituent as described above is as shown in the following schemes 1 and 2.

Monomer of the formula 1 according to the present invention prepared as described above is 2, 3, 4, 5, 6-pentafluorostyrene using sodium methoxide to 2, 3, 5, 6-tetrafluoro-4-methoxystyrene And convert to 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene using borontribromide. When the synthesized 2, 3, 5, 6-tetrafluoro-4-hydroxy styrene is reacted by adding an excess amount of epichlorohydrin, the monomer of the present invention, 2, 3, 5, 6-tetrafluor-4 It will produce glycidoxy styrene.

Such monomers of the present invention may be polymerized using a radical initiator in a conventional manner, or may be reacted with other monomers to synthesize a bicomponent, semi-branched, or other similar type of high molecular compound.

Thus, when used as an optical communication material using the monomer and the polymer compound prepared according to the present invention, it is possible to implement an optical waveguide device by easily controlling the refractive index to the range 1.41 ~ 1.68 (632 nm), the range of 1.43 ~ 1.48 (632 nm) When used in combination with a silica material having a refractive index, it is possible to implement a multilayer type composite device using advantages of heterogeneous materials.

As described above, the fluorinated styrene monomer having a structure having an epoxy substituent and the polymer compound according to the present invention deposit a thin film using spin coating according to a conventional method, and use an optical waveguide device by thermal or ultraviolet irradiation. In this case, the present invention exhibits an excellent thermal stability having a glass transition temperature of 150 ° C. or higher and a light transmission loss of 0.2 dB / cm or less at a wavelength of 1.55 um in comparison with the conventional art.

As such, when the polyimide compound prepared according to the present invention is used as an optical communication material, such a polymer material is thermally stable, and in particular, by introducing fluorine in an optical waveguide device, it minimizes light loss due to absorption and has a low dielectric constant. It will show an effect that causes. In addition, the polyimide compound of the present invention has a low birefringence by introducing a flexible group into the molecular structure to increase the nodularity, and thus is useful as a material for optical communication.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by Examples.

In the examples, the synthesis examples are used as reaction monomers in the following examples as compounds in which 2, 3, 4, 5, 6-pentafluoro styrene is substituted with an epoxy substituent.

Synthesis Example 1

2, 3, 5, 6-tetrafluoro-4-methoxystyrene synthesis

In a 500 mL round bottom flask with a cooler, 300 mL of methanol containing 20 g of 2, 3, 4, 5, 6-pentafluorostyrene was dissolved, and cooled to 0 ° C. 20 mL (30 wt%) of sodium methoxide mixed in 90 mL of methanol is slowly added dropwise to the reaction solution. The reaction is stirred at 0 ° C. for 15 minutes and refluxed for 4 hours. The reaction solution is poured into water, extracted with diethyl ether, and diethyl ether is dried by vacuum distillation at 50 degrees. Yield: 19.0 g (90%).

Synthesis Example 2

2, 3, 5, 6-tetrafluoro-4-hydroxystyrene synthesis

A 200 mL solution of dried dichloromethane in which 15 g of 2, 3, 5, 6-tetrafluoro-4-methoxystyrene was dissolved was added to a 500 mL round bottom flask and stirred. 10 ml of boron tribromide dissolved in 50 mL of dichloromethane is slowly added dropwise to the reaction solution. Stir at room temperature for 24 hours. Excess boron tribromide and boron complexes are poured into a water-ice mixture to hydrolyze and stirred at room temperature for 1 hour. Extracted with diethyl ether, dried over magnesium sulfate, distilled, and dried in vacuo at 70 ° C. to obtain a white crystalline product. Yield: 9.5 g (66%).

Synthesis Example 3

2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene synthesis

10 ml of 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene was dissolved in a 10 ml solution of dried dimethylformamide in which 1.6 g of cesium fluoride was dissolved in a 500 ml three-necked flask. 80 mL of dimethylformamide was added using a syringe, and the temperature was raised to 50 ° C and stirred for 1 hour. Epichlorohydrin 14.45g using a syringe and reacted for 70 hours, poured into water, the organic layer was separated with ethyl acetate, washed with 1N sodium hydroxide aqueous solution and washed again with water several times. The separated organic layer is dried over magnesium sulfate and filtered. Distillation is carried out using a rotary evaporator, and the product is separated using a column and vacuum dried at room temperature. Yield: 9.75 g (72%).

Synthesis Example 4

Poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) polymer synthesis

Under nitrogen stream, 8 g (30.7 mmol) of 2, 3, 5, 6-tetrafluoro-4-glycidoxy styrene synthesized in a 250 mL one-necked flask and 40 ml of tetrahydrofuran (THF) were dissolved and stirred. After adding 0.0024g (0.3wt%) of 2, 2'- azobis (2-methylpropanenitrile) (AIBN) which is an initiator, it superposes | polymerizes at 50 degreeC for 24 hours. When the viscosity increased, it was poured into normal hexane, and the precipitate was filtered and dried in vacuo at room temperature to obtain a white powder. Yield: 6.8 g (85%), refractive index (632 nm): 1.5150.

Hereinafter, the present invention will be described in detail with reference to Examples.

Example 1

Synthesis of 2,3,5,6-tetrafluoro-4-glycidoxystyrene / 2,2,2,2-trifluoroethyl methacrylate bicomponent polymer

8 g (30.7 mmol) of 2, 3, 5, 6-tetrafluoro-4-glycidoxy styrene and 13.79 g (82 mmol) of 2, 2, 2-trifluoroethyl methacrylate synthesized in a 250 mL one-neck flask under nitrogen stream ) Is dissolved in 100 ml of tetrahydrofuran (THF) and stirred. Here, 0.065 g (0.3 wt%) of 2, 2'-azobis (2-methylpropanenitrile) (AIBN), which is an initiator, was added thereto and then polymerized at 50 ° C. for 24 hours. When the viscosity increased, it was poured into normal hexane, filtered and dried in vacuo at room temperature. Yield: 19.83 g (91%), refractive index (632 nm): 1.4580

Example 2

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, 2-trifluoroethyl acrylate bicomponent polymer

Synthesis method of the above polymer is the same as in Example 1. 2, 2, 2-trifluoroethyl acrylate was used instead of 2, 2, 2-trifluoroethyl methacrylate.

[Examples 3 to 7]

2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / methacrylate bicomponent polymer

Synthesis method of the above polymer is the same as in Example 1. 2, 2, 3, 3-tetrafluoropropyl methacrylate, 1H, 1H, 2H, 2H-perfluorooctyl methacrylate, 2, 2, 3, instead of 2, 2, 2-trifluoroethyl methacrylate 3, 3-pentafluoropropyl methacrylate, 2-hydroxy ethyl methacrylate, 2, 3, 4, 5, 6-pentafluorophenyl methacrylate were used.

[Examples 8 to 12]

2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / acrylate bicomponent polymer

Synthesis method of the above polymer is the same as in Example 2. 2, 2, 3, 3-tetrafluoropropyl acrylate, 1H, 1H, 2H, 2H-perfluorooctyl acrylate, 2, 2, 3, 3, 3 instead of 2, 2, 2-trifluoroethyl acrylate -Pentafluoropropyl acrylate, 2-hydroxyethyl acrylate, 2, 3, 4, 5, 6-pentafluorophenyl acrylate was used.

[Examples 13 to 18]

2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / α-fluoroacrylate bicomponent polymer

Synthesis method of the above polymer is the same as in Example 2. 2, 2, 2-trifluoroethyl-α-fluoroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-fluoroacrylate, 1H, 1H instead of 2, 2, 2-trifluoroethyl acrylate , 2H, 2H-perfluorooctyl-α-fluoroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-fluoroacrylate, 2-hydroxyethyl-α-fluoroacrylate, 2, 3 , 4, 5, 6-pentafluorophenyl-α-fluoroacrylate was used.

[Examples 19 to 24]

2, 3, 5, 6-tetrafluoro-4-glycidoxy styrene / α-chloroacrylate bicomponent polymer

Synthesis method of the above polymer is the same as in Example 2. 2, 2, 2-trifluoroethyl-α-chloroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-chloroacrylate, 1H, 1H instead of 2, 2, 2-trifluoroethyl acrylate , 2H, 2H-perfluorooctyl-α-chloroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-chloroacrylate, 2-hydroxyethyl-α-chloroacrylate, 2, 3 , 4, 5, 6-pentafluorophenyl-α-chloroacrylate was used.

Example 25

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, 2-trifluoroethyl methacrylate / 2, 3, 4, 5, 6-pentafluorostyrene

5 g (19.21 mmol) of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene synthesized in a 250 mL one-neck flask under nitrogen stream, and 6.8 g of 2, 3, 4, 5, 6-pentafluorostyrene (35.29 mmol), 2, 2, and 2-trifluoroethyl methacrylate 4.8 g (28.65 mmol) are dissolved in 40 ml of tetrahydrofuran (THF), followed by stirring. Here, 0.048 g (0.3 wt%) of 2, 2'-azobis (2-methylpropanenitrile) (AIBN), which is an initiator, was added thereto and then polymerized at 50 ° C for 24 hours. When the viscosity increased, it was poured into normal hexane, and the precipitate was filtered and dried in vacuo at room temperature to obtain a white powder. Yield: 15.2 g (91%), refractive index (632 nm): 1.4583.

Example 26

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, 2-trifluoroethyl acrylate / 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene

5 g (19.21 mmol) of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene synthesized in a 250 mL 1-neck flask under nitrogen stream, and 2, 3, 5, 6-tetrafluoro-4-hydroxy 5.06 g (24.08 mmol) of styrene, 10.02 g (59.60 mmol) of 2, 2, 2-trifluoroethyl methacrylate are dissolved in 50 ml of tetrahydrofuran (THF), followed by stirring. Here, 0.06 g (0.3 wt%) of 2, 2'-azobis (2-methylpropanenitrile) (AIBN), which is an initiator, was added thereto, followed by polymerization at 50 ° C. for 24 hours. When the viscosity increased, it was poured into normal hexane, and the precipitate was filtered and dried in vacuo at room temperature to obtain a white powder. Yield: 18.51 g (92%), refractive index (632 nm): 1.4650.

[Examples 27 to 31]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / methacrylate / 2, 3, 4, 5, 6-pentafluorostyrene terpolymer

Synthesis method of the above polymer is the same as in Example 25. 2, 2, 3, 3-tetrafluoropropyl methacrylate, 1H, 1H, 2H, 2H-perfluorooctyl methacrylate, 2, 2, 3, instead of 2, 2, 2-trifluoroethyl methacrylate 3, 3-pentafluoropropyl methacrylate, 2-hydroxy ethyl methacrylate, 2, 3, 4, 5, 6-pentafluorophenyl methacrylate were used.

[Examples 32 to 37]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / acrylate / 2, 3, 4, 5, 6-pentafluorostyrene terpolymer

Synthesis method of the above polymer is the same as in Example 25. 2, 2, 2-trifluoroethyl acrylate, 2, 2, 3, 3-tetrafluoropropyl acrylate, 1H, 1H, 2H, 2H-perfluoro instead of 2, 2, 2-trifluoroethyl methacrylate Octyl acrylate, 2, 2, 3, 3, 3-pentafluoropropyl acrylate, 2-hydroxyethyl acrylate, 2, 3, 4, 5, 6-pentafluorophenyl acrylate were used.

[Examples 38 to 43]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / α-fluoroacrylate / 2, 3, 4, 5, 6-pentafluorostyrene terpolymer

Synthesis method of the above polymer is the same as in Example 25. 2, 2, 2-trifluoroethyl-α-fluoroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-fluoroacrylate, 1H, instead of 2, 2, 2-trifluoroethyl methacrylate 1H, 2H, 2H-perfluorooctyl-α-fluoroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-fluoroacrylate, 2-hydroxyethyl-α-fluoroacrylate, 2, 3, 4, 5, 6-pentafluorophenyl-α-fluoroacrylate was used.

[Examples 43 to 48]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / α-chloroacrylate / 2, 3, 4, 5, 6-pentafluorostyrene terpolymer

Synthesis method of the above polymer is the same as in Example 25. 2, 2, 2-trifluoroethyl-α-chloroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-chloroacrylate, 1H, instead of 2, 2, 2-trifluoroethyl methacrylate 1H, 2H, 2H-perfluorooctyl-α-chloroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-chloroacrylate, 2-hydroxyethyl-α-chloroacrylate, 2, 3, 4, 5, 6-pentafluorophenyl-α-chloroacrylate was used.

[Examples 49 to 53]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / methacrylate / 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene terpolymer

Synthesis method of the above polymer is the same as in Example 26. 2, 2, 3, 3-tetrafluoropropyl methacrylate, 1H, 1H, 2H, 2H-perfluorooctyl methacrylate, 2, 2, 3, instead of 2, 2, 2-trifluoroethyl methacrylate 3, 3-pentafluoropropyl methacrylate, 2-hydroxy ethyl methacrylate, 2, 3, 4, 5, 6-pentafluorophenyl methacrylate were used.

[Examples 54 to 59]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / acrylate / 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene tertiary polymer

Synthesis method of the above polymer is the same as in Example 26. 2, 2, 2-trifluoroethyl acrylate, 2, 2, 3, 3-tetrafluoropropyl acrylate, 1H, 1H, 2H, 2H-perfluoro instead of 2, 2, 2-trifluoroethyl methacrylate Octyl acrylate, 2, 2, 3, 3, 3-pentafluoropropyl acrylate, 2-hydroxyethyl acrylate, 2, 3, 4, 5, 6-pentafluorophenyl acrylate were used.

[Examples 60-65]

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / α-fluoroacrylate / 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene tertiary polymer

Synthesis method of the above polymer is the same as in Example 26. 2, 2, 2-trifluoroethyl-α-fluoroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-fluoroacrylate, 1H, instead of 2, 2, 2-trifluoroethyl methacrylate 1H, 2H, 2H-perfluorooctyl-α-fluoroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-fluoroacrylate, 2-hydroxyethyl-α-fluoroacrylate, 2, 3, 4, 5, 6-pentafluorophenyl-α-fluoroacrylate was used.

EXAMPLE 66-71

Synthesis of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / α-chloroacrylate / 2, 3, 5, 6-tetrafluoro-4-hydroxystyrene tertiary polymer

Synthesis method of the above polymer is the same as in Example 26. 2, 2, 2-trifluoroethyl-α-chloroacrylate, 2, 2, 3, 3-tetrafluoropropyl-α-chloroacrylate, 1H, instead of 2, 2, 2-trifluoroethyl methacrylate 1H, 2H, 2H-perfluorooctyl-α-chloroacrylate, 2, 2, 3, 3, 3-pentafluoropropyl-α-chloroacrylate, 2-hydroxyethyl-α-chloroacrylate, 2, 3, 4, 5, 6-pentafluorophenyl-α-chloroacrylate was used.

Example 72

Thermal curing of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene)

After dissolving 5 g of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) synthesized in Synthesis Example 30 at 30wt% in cyclohexanone, using a 0.2 μm filter to remove insoluble solids The wafer was spin coated at 2000 rpm for 30 seconds. The coated wafers were placed in a vacuum oven and vacuum dried for 30 minutes at 50 ° C., 30 minutes at 100 ° C., 1 hour at 150 ° C., and 10 minutes at 250 ° C. Most of the epoxy substituents in the range of 130 ~ 180 ℃ to form a crosslinking to make a thermosetting polymer film. 0.15 dB / cm optical loss and glass transition temperature (Tg) were not observed at a refractive index of 1.515 and a birefringence of 0.0001 and 1550 nm, and a polymer film having excellent thermal resistance with a thermal decomposition temperature (Td) of 400 ° C or higher was obtained.

Example 73

Thermosetting of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, 2, 2-trifluoroethyl methacrylate bicomponent polymer

Thermal curing of the polymer film is the same as in Example 72. 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, synthesized in Example 1 instead of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) A 2, -trifluoroethyl methacrylate bicomponent polymer was used. At 0.8580 and birefringence at 0.0003 and 1550 nm, 0.18 dB / cm light loss and glass transition temperature (Tg) were not observed, and a polymer film having excellent thermal resistance with a thermal decomposition temperature (Td) of 350 ° C or higher was obtained.

Example 74

Thermosetting of 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, 2, 2-trifluoroethyl methacrylate bicomponent polymer

Thermal curing of the polymer film is the same as in Example 72. 2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene / 2, 2, synthesized in Example 25 instead of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) 2-trifluoroethyl methacrylate / 2, 3, 4, 5, 6-pentafluorostyrene tertiary polymer was used. A polymer film having excellent heat resistance with a refractive index of 1.4583, a birefringence of 0.0002 and 1550 nm having a light loss of 0.17 dB / cm and no glass transition temperature (Tg) was observed and a thermal decomposition temperature (Td) of 350 ° or more was obtained.

Example 75

UV curing of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene)

5 g of poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) synthesized in Synthesis Example 4 was dissolved in cyclohexanone at 30 wt% and KPS-101 (provided by Kumho Petrochemical) was prepared as a photooxidation initiator. g (1 wt%) is added to dissolve. After the insoluble solids were removed using a 0.2 μm filter, the wafer was spin coated at 2000 rpm for 30 seconds. The coated wafer was cured by irradiating 365 nm ultraviolet rays of I-line wavelength under nitrogen. The refractive index was 1.514, the birefringence was 0.0001, 1550nm, 0.16dB / cm optical loss and glass transition temperature (Tg) were not observed, and the polymer film excellent in heat resistance which shows the thermal decomposition temperature (Td) of 380 degrees or more was obtained.

Photoinitiators used herein are as follows.

Photooxidation Initiator (KPS-101)

Example 76

Heat curing and UV curing

All the polymer compositions mentioned in the above examples were thermally cured and ultraviolet cured in the same manner as in Examples 72 to 75.

As described above, the monomer according to the present invention is a fluorinated styrene-based monomer having an epoxy substituent, which can be used to synthesize a two-component / three-component high molecular compound, and when used as an optical communication material using such a monomer and a high molecular compound It is easy to control the refractive index from 1.41 ~ 1.68 (632nm) to realize the optical waveguide device, and it is possible to realize the laminated composite device using the advantage of heterogeneous materials by mixing with the silica material having the refractive index in the range of 1.43 ~ 1.48 (632nm). It works.

In addition, the structure of the synthesized polymer material has an epoxy substituent capable of forming a crosslink, and thus has thermal stability and chemical resistance. The optically absorbed CH bonds in the optical communication bandwidth are replaced by CF and C-Cl bonds. The loss can be minimized.

In addition, by introducing a flexible group in the molecular structure to increase the amorphousness to improve the transmittance to minimize the alignment of the polymer chain, there is an effect having a low birefringence and low light loss.

In addition, both ultraviolet curing and thermal curing processes are possible, so that the process can be adjusted according to the device.

In addition, the polymer compound of the present invention can be very preferably used for the optical waveguide device because it is excellent in the formation of multilayer thin film, chemical resistance, adhesiveness in addition to the light absorption characteristics.

Claims (5)

2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene monomer represented by the following formula (1). [Formula 1] A polymer compound which is poly (2, 3, 5, 6-tetrafluoro-4-glycidoxystyrene) represented by the following Chemical Formula 2. [Formula 2] A bicomponent high molecular compound represented by the following formula (3). [Formula 3] R ₁ in Formula 3 represents -CH ₃ , -H, -F, -Cl; R ₂ is Wherein P is 1 or 2, n is an integer from 1 to 40, R represents an alkylene group, chain, branch or cyclic structure having 1 to 8 carbon atoms; x, y may vary the composition ratio according to the refractive index, each means an integer of 10 to 100 irrespective of each other. Samsung-based polymer compound represented by the following formula (4). [Formula 4] In Formula 4, R _1, R _{2, and} R ₃ are the same as defined in Formula 3, and a, b, and c may vary in composition ratio according to refractive index, and each represents an integer of 10 to 100 regardless of each other. do. An optical waveguide device comprising a compound selected from claims 1 to 5.