KR20140142164A - Polycarbonate, preparation method of polycarbonate, resin article, diol compound for preparing polycarbonate, preparation method of diol compound for preparing polycarbonate - Google Patents

Abstract

The present invention relates to: a polycarbonate resin that has transparency, heat resistance, and mechanical properties, which are same with or better than those of a prior polycarbonate resin obtained by using raw materials derived from petroleum, even though the polycarbonate is synthesized with raw materials derived from plants; a method for manufacturing the polycarbonate resin obtained by using the raw materials derived from the plants; a molded product of the polycarbonate resin synthesized by using the raw materials derived from the plants; a diol compound for synthesizing the polycarbonate resin; and a method for producing the diol compound for polycarbonate resin.

Description

TECHNICAL FIELD The present invention relates to a polycarbonate resin, a method for producing a polycarbonate resin, a resin molded product, a diol compound for polycarbonate synthesis, and a method for producing a diol compound for polycarbonate synthesis. BACKGROUND ART DIOL COMPOUND FOR PREPARING POLYCARBONATE}

The present invention relates to a polycarbonate resin, a method for producing a polycarbonate resin, a resin molded article, a diol compound for polycarbonate synthesis, and a method for producing a diol compound for polycarbonate synthesis.

The widely used polycarbonate resins have excellent transparency, heat resistance, mechanical strength, and the like, and can be used for electric / electronic parts, automobile parts, medical parts, construction materials, films, sheets, bottles, optical recording media, Lens and the like.

These polycarbonates have been produced using raw materials derived from petroleum, but in recent years there has been a concern about depletion of petroleum resources and adverse effects on the environment such as excessive use of raw materials derived from petroleum and the generation of carbon dioxide , Research on a method of synthesizing a polycarbonate using a plant-derived raw material is underway.

Previously, it has been known to synthesize polycarbonate resins by transesterifying isosorbide and diphenyl carbonate derived from plants. However, the polycarbonate resin synthesized using isosobide exhibits a low transparency due to the brown color, and thus it has been limited to various industrial fields.

A polycarbonate resin obtained by polymerization of 1,4-cyclohexane dimethanol, which is an alicyclic dihydroxy compound, has also been reported. However, such a polycarbonate resin has a difficulty in obtaining a high molecular weight and has a low glass transition temperature.

That is, the polycarbonate resin obtained using a currently known plant-derived raw material has lower transparency, heat resistance, or mechanical properties than conventional polycarbonate resins using petroleum-derived raw materials, and is applied to various fields such as optical materials or automotive interior and exterior materials There is a limit.

The present invention is to provide a polycarbonate resin having transparency, heat resistance, or mechanical properties equal to or higher than that of a conventional polycarbonate resin using a raw material derived from a plant and using a petroleum-derived raw material.

The present invention also provides a process for producing a polycarbonate resin using the plant-derived raw material.

The present invention also provides a molded article of a polycarbonate resin synthesized by using a plant-derived raw material.

The present invention also provides a diol compound for synthesizing the polycarbonate resin.

The present invention also provides a process for producing the diol compound for polycarbonate synthesis.

The present invention provides a polycarbonate resin comprising a repeating unit represented by the following formula (1).

[Chemical Formula 1]

In Formula 1, X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, 4 to 20 cycloalkylene (cycloalkylene), the alkylene group of a carbon number of 5 to 20-cycloalkylene, alkylene arylene (arylene), or having a carbon number of 7 to 20 of carbon number of 6 to 20, and arylene, R _1, R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.

The present invention also provides a process for preparing a polycarbonate resin comprising reacting a diol compound represented by the following formula (2) with a carbonate compound.

(2)

In Formula 2, X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, 4 to 20 cycloalkylene (cycloalkylene), the alkylene group of a carbon number of 5 to 20-cycloalkylene, alkylene arylene (arylene), or having a carbon number of 7 to 20 of carbon number of 6 to 20, and arylene, R _1, R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.

The present invention also provides a molded article comprising the polycarbonate resin.

The present invention also provides a diol compound for synthesizing a polycarbonate resin represented by the following formula (2).

 (2)

In Formula 2, X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, 4 to 20 cycloalkylene (cycloalkylene), the alkylene group of a carbon number of 5 to 20-cycloalkylene, alkylene arylene (arylene), or having a carbon number of 7 to 20 of carbon number of 6 to 20, and arylene, R _1, R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.

The present invention also relates to a process for the production of a catalyst which comprises contacting a camphor with an alcohol in the presence of at least one catalyst compound selected from the group consisting of hydrochloric acid, nitric acid, hydrogen ions, heteropoly acid, zeolite, hydrogen bromide, boron trifluoride, Wherein the reaction is carried out in the presence of a base.

Hereinafter, a polycarbonate resin, a method for producing a polycarbonate resin, a resin molded article, a diol compound for polycarbonate synthesis, and a method for producing a diol compound for polycarbonate synthesis according to a specific embodiment of the present invention will be described in detail.

In the present specification, alkylene means a divalent functional group derived from an alkane, alkenylene means a divalent functional group derived from an alkene, cycloalkylene (cycloalkylene) ) Means a divalent functional group derived from cycloalkane, and arylene means a divalent functional group derived from arene. Also, an alkylene-cycloalkylene means a divalent functional group including a cycloalkylene bonded with at least one alkylene group, and the alkylene-arylene means a divalent functional group including an arylene bonded with at least one alkylene group do.

According to an embodiment of the present invention, a polycarbonate resin containing the repeating unit of the above formula (1) may be provided.

The inventors of the present invention have confirmed through experiments that polycarbonate resin containing the recurring unit of the above-mentioned formula (1) has transparency, heat resistance or mechanical properties equal to or higher than that of a conventional polycarbonate resin using a petroleum-derived raw material, Completed.

As shown in the following production method, the polycarbonate resin containing the repeating unit represented by the above formula (1) is obtained by reacting a diol-based derivative synthesized by using camphor obtained by distilling a camphor tree (Cinnamomun camphora) A carbonate compound.

The polycarbonate resin not only has excellent transparency and excellent appearance properties, but also has mechanical properties such as high heat resistance and weather resistance.

In Formula 1, R ₁ , R ₂ and R ₃ may be the same or different from each other and may be hydrogen or an alkyl group having 1 to 3 carbon atoms, or both may be a methyl group.

The polycarbonate resin of the embodiment may further include a repeating unit represented by the following formula (11).

(11)

In Formula 11, R ₄ and R ₅ may be the same or different and each represents hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, A and b each represent an integer of 0 to 4; Z represents a direct bond, a straight-chain or branched alkylene group having 1 to 10 carbon atoms, an oxygen atom, a sulfur atom, -SO ₂ - or a bivalent group of formula (12).

[Chemical Formula 12]

In the general formula (12), R ₆ and R ₇ may be the same or different and each represents hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, A cycloalkyl group of 6 to 20 carbon atoms, or an aryl group of 6 to 20 carbon atoms, and * represents a bonding point.

The polycarbonate resin of the above embodiment may further include a repeating unit of the above formula (11) in addition to the repeating unit of the above formula (1), thereby having a more flexible molecular structure or a higher molecular weight due to an increase in polymerization degree. Accordingly, the polycarbonate resin can be expected to have improved mechanical properties such as impact strength.

Specifically, the polycarbonate resin may include 100 mol% of the repeating unit represented by the formula (1), and may include 1 mol% to 85 mol% of the repeating unit represented by the formula (1). The polycarbonate resin may further contain 5 mol% to 45 mol% of repeating units of the above formula (1); And 55 mol% to 95 mol% of the repeating unit of the above formula (11). Also, the polycarbonate resin may contain 10 mol% to 30 mol% of repeating units of the above formula (1); And 70 mol% to 90 mol% of the repeating unit represented by the formula (11).

If the content of the repeating unit represented by the above formula (1) in the polycarbonate is too small, the degree of improvement of the glass transition temperature or heat distortion temperature (HDT) may be insufficient or the degree of improvement in heat resistance may be insignificant.

When the polycarbonate contains more repeating units of the formula (11) than the repeating unit of the formula (1), the polycarbonate may have a more flexible molecular structure or a higher molecular weight due to an increase in polymerization degree, The carbonate resin can be expected to improve mechanical properties such as impact strength.

On the other hand, the polycarbonate resin of one embodiment may have a degree of polymerization of 5 to 2,500, preferably 10 to 1,250.

The polycarbonate resin may have a weight average molecular weight of from 5,000 to about 4,000,000 g / mol, preferably from about 10,000 to about 150,000 g / mol.

According to another embodiment of the present invention, there is provided a process for producing a polycarbonate resin, which comprises reacting the diol compound of Formula 2 with a carbonate compound.

The diol compound of formula (2) can be obtained from camphor obtained by distilling a camphor tree (Cinnamomun camphora). Specifically, the diol compound of Formula 2 can be synthesized by reacting the camphor with an alcohol in the presence of a specific catalyst.

In Formula 2, R ₁ , R ₂ and R ₃ may be the same or different from each other and may be hydrogen or an alkyl group having 1 to 3 carbon atoms, or both may be a methyl group.

The carbonate compound may be used in an amount of 100 to 120 mol% based on the diol compound of the formula (2).

The carbonate compound may include at least one member selected from the group consisting of an aliphatic carbonate compound, an alicyclic carbonate compound, and an aromatic carbonate compound.

Specifically, the carbonate compound is selected from the group consisting of diphenyl carbonate, dicyclopentyl carbonate, dicyclohexyl carbonate, dicycloheptyl carbonate, dibenzyl carbonate, diphenetyl carbonate, di (phenylpropyl) carbonate, di (phenylbutyl) butylphenyl-phenyl carbonate, dibutylphenyl carbonate, isobutylphenyl-phenyl carbonate, diisobutylphenyl carbonate, tert-butylphenyl-phenyl carbonate, di-tert-butylphenyl carbonate, n (N-hexylphenyl) carbonate, cyclohexylphenyl-phenyl carbonate, dicyclohexylphenyl carbonate, phenylphenol-phenyl, diphenylhexylphenyl carbonate, Carbonate, diphenyl phenol carbonate, isooctyl phenyl-phenyl carbonate, diisooctyl phenyl carbonate n-nonylphenyl carbonate, cumylphenyl-phenyl carbonate, dicumylphenyl carbonate, naphthylphenyl-phenyl carbonate, dinaphthylphenyl carbonate, di-tert-butylphenyl-phenyl (4-phenoxyphenyl) carbonate, di (tert-butylphenyl) carbonate, dicumylphenyl-phenyl carbonate, di Decylphenyl-phenyl carbonate, di (3-pentadecylphenyl) carbonate, tritylphenyl-phenyl carbonate, and ditertiylphenyl carbonate.

On the other hand, the step of reacting the diol compound of Formula 2 with a carbonate compound may be carried out at a temperature of 150 to 400 ° C. in the presence of a polymerization catalyst. The diol compound and the carbonate compound of Formula 2 may undergo the transesterification reaction in the molten state in the temperature range in the presence of the polymerization catalyst and the optional optional additives.

The polymerization catalyst is selected from the group consisting of sodium hydrogen carbonate, potassium hydroxide, tetraphenylphosphonium tetraphenylborate, tetramethylammonium hydroxide tetraphenyl, sodium hydrogencarbonate, calcium acetate, lithium acetate, lithium hydride, magnesium chloride, dibutyltin oxide , Sodium phenolate, and hydrogen fluoride.

In the step of reacting the diol compound of Formula 2 with a carbonate compound, the reaction of the diol compound of Formula 2 with the carbonate compound may be performed by increasing the reaction temperature from 150 ° C to 340 ° C, reducing the pressure to 760 torr, . Specifically, in the process for producing a polycarbonate polymer using a melt polymerization method, the temperature of the reaction system is gradually raised from about 150 to about 360 DEG C, preferably from about 150 to about 340 DEG C for about 4 hours to about 6 hours At the same time, the polycondensation reaction between the diol compound of formula (2) and the carbonate compound can be carried out while the pressure is reduced to about 0 torr at about 760 torr.

The step of reacting the diol compound of Formula 2 with a carbonate compound may include a step of polycondensation of the diol compound of Formula 2 with a carbonate compound by injecting phosgene in the presence of a catalyst.

As the phosgene is injected in the presence of the catalyst, the diol compound and the carbonate compound of Formula 2 may undergo an interfacial polycondensation reaction.

Wherein the catalyst is selected from the group consisting of triethylamine, tripropylamine, triisopropylamine, tributylamine, triisobutylamine, N-methylpiperidine, N-ethylpiperidine and N-propylpiperidine One or more compounds.

The polycondensation reaction can be carried out in an aqueous alkali solution and an organic solvent.

The alkali aqueous solution may be water in which a hydroxide of an alkali metal or an alkaline earth metal is dissolved or aqueous solution, preferably an aqueous solution of sodium hydroxide or an aqueous solution of potassium hydroxide.

As the organic solvent, halogenated hydrocarbons including methylene chloride, chlorobenzene, dichlorobenzene, trichlorobenzene or a mixture thereof, or aromatic hydrocarbons including toluene or xylene are preferable, and methylene chloride is particularly preferable.

When the polycarbonate resin is synthesized through the step of injecting phosgene in the presence of the catalyst as described above, it may further include adding a reactive termination agent containing a phenol compound.

The addition timing of the phenol compound-containing reaction termination may be determined in consideration of the final physical properties of the polycarbonate resin to be synthesized, etc., and may be determined by confirming the appearance characteristics such as the viscosity and transparency of the polycarbonate resin synthesized during the reaction have.

As the phenol compound, phenol or lower alkyl-substituted phenol can be used. Specific examples thereof include p-tert-butylphenol, p-cumylphenol, isooctylphenol and the like.

Meanwhile, the process for preparing the polycarbonate resin of the embodiment may include reacting the diol compound of Formula 2, the diol compound of Formula 21, and a carbonate compound.

[Chemical Formula 21]

In formula (21), R ₄ and R ₅ may be the same or different from each other and each represent hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, A cycloalkyl group having 6 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms, and a and b are each an integer of 0 to 4.

Z is a direct bond, a linear or branched alkylene group having 1 to 10 carbon atoms, an oxygen atom, a sulfur atom, -SO ₂ -, or a divalent functional group represented by the following formula (12).

[Chemical Formula 12]

In the general formula (12), R ₆ and R ₇ may be the same or different and each represents hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, A cycloalkyl group of 6 to 20 carbon atoms, or an aryl group of 6 to 20 carbon atoms, and * represents a bonding point.

The diol compound (total of the diol compound of Formula 2 and the total amount of the diol compound of Formula 21) is 5 mol% to 45 mol% of the diol compound of Formula 2; And 55 mol% to 95 mol% of the diol compound of Formula 21, and 10 mol% to 30 mol% of the diol compound of Formula 2; And 70 mol% to 90 mol% of the diol compound of the formula (21).

If the content of the diol compound of Formula 2 is too low, the degree of improvement of the glass transition temperature or heat distortion temperature (HDT) of the finally produced polycarbonate may be insufficient or the degree of heat resistance improvement may be insignificant.

When the diol compound contains more diol compounds than the diol compound of the formula (2) above, the polymer can have a more flexible molecular structure or a higher molecular weight due to an increase in polymerization degree, and accordingly, The polycarbonate resin finally produced can be expected to have improved mechanical properties such as impact strength.

On the other hand, according to another embodiment of the invention, a molded article comprising the above-mentioned polycarbonate resin can be provided.

As described above, the polycarbonate resin containing the repeating unit represented by the above formula (1) has excellent transparency as well as excellent appearance characteristics, and can have mechanical properties such as high heat resistance and weather resistance, .

The polycarbonate resin containing the repeating unit of the above formula (1) can be processed by a known method and processed into a predetermined molded product by, for example, extrusion, injection molding or extrusion blow molding.

As a specific example, the polycarbonate resin containing the repeating unit represented by Formula 1 may be formed into a desired shape by injection molding at a barrel temperature of about 200 ° C. to about 400 ° C. and a mold temperature of about 30 ° C. to about 180 ° C.

Typical additives such as fillers, UV stabilizers, heat stabilizers, antistatic agents and pigments may be added during this process. In addition to these additives, it is also possible to use other additives such as release agents, flow agents and / or refractories (e.g., alkyl and aryl phosphites, phosphates, phosphazines and low molecular weight carboxylic acid esters, halogen compounds, salts, chalk, quartz powder, Carbon fibers, pigments, and mixtures thereof), and the like.

Particularly, the molded article is used in a field of a display device, a flexible display device, a transparent substrate of an electronic apparatus, an optical film, an optical lens, an information storage device, an information transmitting device, an illumination lid device, a prism device, etc. in which high transparency and high temperature heat resistance are required . ≪ / RTI >

In addition, the polycarbonate resin included in the molded article of the embodiment may further include a repeating unit represented by the following formula (11).

(11)

The content of the formula (11) is as described above.

The polycarbonate resin may include 100 mol% of the repeating unit represented by the formula (1), and may include 1 mol% to 85 mol% of the repeating unit represented by the formula (1). The polycarbonate resin may further contain 5 mol% to 45 mol% of repeating units of the above formula (1); And 55 mol% to 95 mol% of the repeating unit of the above formula (11). Also, the polycarbonate resin may contain 10 mol% to 30 mol% of repeating units of the above formula (1); And 70 mol% to 90 mol% of the repeating unit represented by the formula (11).

According to another embodiment of the present invention, a diol compound for synthesizing a polycarbonate resin of Formula 2 may be provided.

As described above, by reacting the diol compound for synthesizing the polycarbonate resin of Formula 2 with a carbonate compound, a polycarbonate resin containing the repeating unit of the above-mentioned Formula 1 can be provided. The polycarbonate resin can be used as a raw material for petroleum Can have transparency, heat resistance, or mechanical properties equal to or higher than those of conventional polycarbonate resins used. The polycarbonate resin not only has excellent transparency and excellent appearance properties, but also has mechanical properties such as high heat resistance and weather resistance.

The diol compound of formula (2) can be obtained from camphor obtained by distilling a camphor tree (Cinnamomun camphora). Specifically, the diol compound of Formula 2 can be synthesized by reacting the camphor with an alcohol in the presence of a specific catalyst.

According to yet another embodiment of the invention, there is provided a process for the preparation of a compound of formula (I) in the presence of at least one catalytic compound selected from the group consisting of hydrochloric acid, nitric acid, hydrogen ions, heteropoly acid, zeolite, hydrogen bromide, boron trifluoride and boric acid. camphor) with an alcohol at a temperature of 60 to 200 占 폚. The process for producing the diol compound for polycarbonate synthesis may be provided.

The diol compound of Formula 2 can be synthesized by reacting Camphor obtained by distilling Cinnamomun camphora (Camphor tree) with alcohol in the presence of the specific catalyst.

The alcohol may be a linear or branched alkyl alcohol having 1 to 20 carbon atoms, a straight or branched alkenyl alcohol having 2 to 20 carbon atoms, a cycloalkyl alcohol having 4 to 20 carbon atoms, an alkyl cycloalkyl alcohol having 5 to 20 carbon atoms, 6 to 20 aryl alcohols, and 7 to 20 carbon alkyl alcohols.

The method for producing the diol compound for polycarbonate synthesis comprises the steps of distilling a camphor tree (Cinnamomun camphora, Camphor tree); And extracting the camphor from the distillation product.

According to the present invention, not only is it synthesized using a plant-derived raw material but has high transparency equal to or higher than that of a conventional polycarbonate resin using a petroleum-derived raw material and has excellent appearance characteristics as well as mechanical properties such as high heat resistance and weatherability A method of producing a polycarbonate resin using a plant-derived diol compound as a raw material, and a molded product of a polycarbonate resin synthesized using a plant-derived raw material.

The present invention also relates to a diol compound obtained from camphor obtained by distilling a camphor (Camphor tree), which can be used for the synthesis of a polycarbonate resin having the above-mentioned characteristics, and a diol compound capable of synthesizing such a diol compound A manufacturing method can be provided.

FIG. 1 is a FT-IR graph of the polycarbonate polymer prepared in Example 3. FIG.
FIG. 2 is a FT-IR graph of the polycarbonate polymer prepared in Example 4. FIG.
3 is a FT-IR graph of the polycarbonate polymer prepared in Comparative Example.
4 is an H-NMR graph of the polycarbonate polymer prepared in Example 3. FIG.
5 is an H-NMR graph of the polycarbonate polymer prepared in Example 4. FIG.
6 is an H-NMR graph of the polycarbonate polymer prepared in Comparative Example.

The invention will be described in more detail in the following examples. However, the following examples are illustrative of the present invention, and the present invention is not limited by the following examples.

< Example 1 : For synthesis of polycarbonate resin Dior  Synthesis of Compound &gt;

A 1 L three-necked flask equipped with a reflux condenser and a stirrer was fixed in a shaking tank filled with thermal oil. To the three-necked flask, 282.33 g (3.0 mol) of phenol, 76.11 g (0.5 mol) of camphor, 10.12 g (0.05 mol) of dodecanethiol and 30 g of distilled water were added. After raising the temperature of the shaking bath to 60 ° C, the reaction mixture was stirred for 2 hours, and 4.5 ml of a 37 wt% hydrochloric acid solution was added thereto. The reaction was carried out at 60 ° C for 20 hours.

After the reaction was completed, 500 ml of distilled water was added to the reaction product while maintaining the temperature of the shaking bath at 60 ° C, and the pH of the reaction product was adjusted to 6.5 by adding 20 wt% aqueous NaOH solution. The neutralized reaction product was heated to 90 DEG C and stirred for 1 hour to dissolve the resulting reaction product. The water layer was removed from the resultant, and the solution was cooled to room temperature to precipitate a product. The precipitated product was centrifuged and filtered to obtain the final reaction product.

< Example 2 : For synthesis of polycarbonate resin Dior  Purification of Compound &gt;

The reaction product obtained in Example 1 was repeatedly washed three times using distilled water and filtered. Then, the cleaned and filtered reaction product was mixed with toluene and water at a ratio of 1: 3: 2 in a 1-liter autoclave reactor equipped with a pressure gauge, a thermometer and a stirrer. After replacing the inside of the autoclave with nitrogen, the temperature was raised to 90 ° C and stirred for 1 hour to dissolve the reaction product. After the stirring was stopped, the reaction solution was allowed to stand for 30 minutes to separate the water layer and the solvent layer, and the water layer was removed. The separated solvent layer was cooled to 50 &lt; 0 &gt; C to crystallize and precipitate the reaction product, and the precipitate was filtered out. The filtered precipitate was washed with distilled water at room temperature and then dried to obtain a diol compound (Bisphenol-Camphor).

< Example 3 : 10 mol % Bisphenol - Camphor Synthesis of Substituted Polycarbonate Polymer>

(Bisphenol-camphor and BPA), 324.41 g (1 mol) of bisphenol-camphor obtained in Example 2, 2054.61 g (9 mol) of bisphenol A (BPA), 2249.31 g (10.5 mol) of diphenyl carbonate Of potassium hydroxide was added to a 12 L reactor.

After replacing the inside of the reactor with nitrogen, the inside of the reactor was heated to 160 ° C to melt the reaction product. When the reaction product was melted, the reaction mixture was stirred while being heated to 180 DEG C for 1 hour, and the reaction product was mixed to proceed a condensation polymerization reaction.

Then, the temperature of the reactor was raised to 210 ° C., and the condensation polymerization reaction was allowed to proceed under a vacuum of 350 Torr. Subsequently, the condensation polymerization was carried out while changing the pressure to 250 Torr, 150 Torr and 60 Torr, The product was removed.

The reactor temperature and degree of vacuum were changed at 230 ° C. and 10 Torr to remove the products such as phenol. The degree of polymerization of the polymer was increased by gradually raising the temperature of the reactor to 250 ° C, 270 ° C and 300 ° C while maintaining the vacuum degree of the reactor at 1 Torr or less. The polycarbonate polymer (PC1) substituted with 10 mol% Bisphenol-Camphor was obtained by stirring until the degree of polymerization reached a certain level at a vacuum degree of 1 Torr or less and a reactor temperature of 300 ° C.

The FT-IR and H-NMR graphs of the prepared polycarbonate polymer are shown in FIGS. 1 and 4, respectively.

< Example 4 : 30 mol % Bisphenol - Camphor Synthesis of Substituted Polycarbonate Polymers>

A mixture of 967.231 g (3 mol) of bisphenol-camphor obtained in 2 above, 1598.03 g (7 mol) of bisphenol A (BPA), 2249.31 g (10.5 mol) of diphenyl carbonate (DPC) and 500 ppbw of bisphenol components (Bisphenol-Camphor and BPA) (PC2) substituted with 30 mol% Bisphenol-Camphor was synthesized in the same manner as in Example 3, except that potassium hydroxide was added to a 12 L reactor.

The FT-IR and H-NMR graphs of the prepared polycarbonate polymer are shown in FIGS. 2 and 5, respectively.

< Comparative Example : Of Polycarbonate Polymers Synthetic synthesis >

The procedure of Example 3 was repeated except that 2282.9 g (10 mol) of bisphenol A (BPA), 2249.31 g (10.5 mol) of diphenyl carbonate (DPC) and 500 ppbw of BPA of potassium hydroxide were added to a 12 L reactor, Carbonate polymer (PC3) was synthesized. The FT-IR graph and the H-NMR spectrum of the prepared polycarbonate polymer are shown in FIG. 3 and FIG. 6, respectively.

Claims (22)

A polycarbonate resin comprising a repeating unit represented by the following formula (1):
[Chemical Formula 1]

In Formula 1,
X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, a cycloalkene having 4 to 20 carbon atoms Cycloalkylene, alkylene-cycloalkylene having 5 to 20 carbon atoms, arylene having 6 to 20 carbon atoms, or alkylene-arylene having 7 to 20 carbon atoms,
R ₁ , R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.
The method according to claim 1,
A polycarbonate resin having a degree of polymerization of 5 to 2,500.
The method according to claim 1,
A polycarbonate resin having a weight average molecular weight of from 5,000 to 4,000,000.
The method according to claim 1,
A polycarbonate resin further comprising a repeating unit represented by the following formula (11):
(11)

In Formula 11,
R ₄ and R ₅ may be the same or different and each represents hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, a cycloalkyl group having 4 to 20 carbon atoms, Or an aryl group having 6 to 20 carbon atoms,
a and b each represent an integer of 0 to 4,
Z is a direct bond, a linear or branched alkylene group having 1 to 10 carbon atoms, an oxygen atom, a sulfur atom, -SO ₂ - or a bivalent functional group represented by the following formula (12)
[Chemical Formula 12]

In the general formula (12), R ₆ and R ₇ may be the same or different and each represents hydrogen, a straight or branched alkyl group having 1 to 20 carbon atoms, a straight or branched alkenyl group having 2 to 20 carbon atoms, A cycloalkyl group of 6 to 20 carbon atoms, or an aryl group of 6 to 20 carbon atoms, and * represents a bonding point.
5. The method of claim 4,
And 1 mol% to 85 mol% of repeating units of the above formula (1).
5. The method of claim 4,
5 mol% to 45 mol% of repeating units of the above formula (1); And
And from 55 mol% to 95 mol% of repeating units of the above formula (11).
A process for producing a polycarbonate resin, comprising reacting a diol compound of the following formula (2) with a carbonate compound:
(2)

In Formula 2,
X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, a cycloalkene having 4 to 20 carbon atoms Cycloalkylene, alkylene-cycloalkylene having 5 to 20 carbon atoms, arylene having 6 to 20 carbon atoms, or alkylene-arylene having 7 to 20 carbon atoms,
R ₁ , R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.
8. The method of claim 7,
Wherein the carbonate compound comprises at least one member selected from the group consisting of an aliphatic carbonate compound, an alicyclic carbonate compound and an aromatic carbonate compound.
8. The method of claim 7,
The carbonate compound may be at least one selected from the group consisting of diphenyl carbonate, dicyclopentyl carbonate, dicyclohexyl carbonate, dicycloheptyl carbonate, dibenzyl carbonate, diphenetyl carbonate, di (phenylpropyl) carbonate, di (phenylbutyl) carbonate, Butylphenyl carbonate, di-tert-butylphenyl carbonate, butylphenyl-phenyl carbonate, dibutylphenyl carbonate, isobutylphenyl-phenyl carbonate, diisobutylphenyl carbonate, tert- N-hexylphenyl carbonate, cyclohexylphenyl-phenyl carbonate, dicyclohexyl phenyl carbonate, phenylphenol-phenyl carbonate, di (n-pentylphenyl) carbonate, Phenylphenol carbonate, isooctylphenyl-phenylcarbonate, diisooctylphenylcarbonate, n-nonylphenyl- Di-tert-butylphenyl-phenyl carbonate, di (tert-butylphenyl) carbonate, di (n-nonylphenyl) carbonate, cumylphenyl-phenyl carbonate, dicumylphenylcarbonate, naphthylphenyl-phenylcarbonate, dinaphthylphenylcarbonate, (4-phenoxyphenyl) carbonate, dicumylphenyl-phenyl carbonate, di (dicumylphenyl) carbonate, 4-phenoxyphenyl- Di (3-pentadecylphenyl) carbonate, tritylphenyl-phenylcarbonate, and ditertiylphenyl carbonate. 2. The polycarbonate resin according to claim 1,
8. The method of claim 7,
Wherein the step of reacting the diol compound of Formula 2 with a carbonate compound is carried out at a temperature of 150 to 400 ° C in the presence of a polymerization catalyst.
11. The method of claim 10,
The polymerization catalyst is selected from the group consisting of sodium hydrogen carbonate, potassium hydroxide, tetraphenylphosphonium tetraphenylborate, tetramethylammonium hydroxide tetraphenyl, sodium hydrogencarbonate, calcium acetate, lithium acetate, lithium hydride, magnesium chloride, dibutyltin oxide , Sodium phenolate, and hydrogen fluoride. The method of producing a polycarbonate resin according to claim 1,
11. The method of claim 10,
The step of reacting the diol compound of formula (2) with a carbonate compound is carried out by raising the reaction temperature from 150 ° C to 340 ° C and proceeding at a reduced pressure of 0 torr at 760 torr.
8. The method of claim 7,
The step of reacting the diol compound of Formula 2 with a carbonate compound,
And injecting phosgene in the presence of a catalyst to cause a polycondensation reaction between the diol compound of Formula 2 and a carbonate compound.
14. The method of claim 13,
Wherein the polycondensation reaction is carried out in an aqueous alkali solution and an organic solvent.
14. The method of claim 13,
Wherein the catalyst is selected from the group consisting of triethylamine, tripropylamine, triisopropylamine, tributylamine, triisobutylamine, N-methylpiperidine, N-ethylpiperidine and N-propylpiperidine A method for producing a polycarbonate resin, comprising at least one compound.
14. The method of claim 13,
&Lt; / RTI &gt; further comprising the step of adding a reactive termination agent comprising a phenolic compound to the polycarbonate resin.
8. The method of claim 7,
Further comprising a step of reacting the diol compound of Formula 2, the diol compound of Formula 21, and a carbonate compound.
A molded article comprising the polycarbonate resin of claim 1.
19. The method of claim 18,
A molded article for use in a display device, a flexible display device, a transparent substrate of an electronic device, an optical film, an optical lens, an information storage device, an information transfer device, an illumination cover device or a prism device.
A diol compound for synthesizing a polycarbonate resin represented by the following formula (2)
(2)

In Formula 2,
X and Y may be the same or different and each is a straight or branched alkylene having 1 to 20 carbon atoms, a straight or branched alkenylene having 2 to 20 carbon atoms, a cycloalkene having 4 to 20 carbon atoms Cycloalkylene, alkylene-cycloalkylene having 5 to 20 carbon atoms, arylene having 6 to 20 carbon atoms, or alkylene-arylene having 7 to 20 carbon atoms,
R ₁ , R ₂ and R ₃ may be the same or different and are hydrogen or an alkyl group having 1 to 3 carbon atoms.
In the presence of at least one catalyst compound selected from the group consisting of hydrochloric acid, nitric acid, hydrogen ions, heteropolyacids, zeolites, hydrogen bromide, boron trifluoride and boric acid,
A process for producing a diol compound for polycarbonate synthesis according to claim 20, which comprises reacting a camphor and an alcohol at 60 to 200 占 폚.
22. The method of claim 21,
The alcohol may be a linear or branched alkyl alcohol having 1 to 20 carbon atoms, a straight or branched alkenyl alcohol having 2 to 20 carbon atoms, a cycloalkyl alcohol having 4 to 20 carbon atoms, an alkyl cycloalkyl alcohol having 5 to 20 carbon atoms, An aryl alcohol having 6 to 20 carbon atoms, and an alkylaryl alcohol having 7 to 20 carbon atoms.

Images