KR20210067075A - Improved heat resistance and impact resistance bio-mass based polymer compositions and manufacturing method the same - Google Patents

Abstract

Disclosed are eco-friendly furan-based polyester carbonate having high heat resistance and transparency of existing polymer materials while improving impact strength, which is one of disadvantages of polycarbonate resins derived from conventional eco-friendly materials, and a method for manufacturing the furan-based polyester carbonate. The present invention provides: the furan-based polyester carbonate, which comprises a repeating unit represented by chemical formula 1, a repeating unit represented by chemical formula 2, a repeating unit represented by chemical formula 3, and a repeating unit represented by chemical formula 4; and the method for manufacturing the same.

Description

Bio-derived polymer resin composition having improved heat resistance and impact resistance, and method for manufacturing the same {IMPROVED HEAT RESISTANCE AND IMPACT RESISTANCE BIO-MASS BASED POLYMER COMPOSITIONS AND MANUFACTURING METHOD THE SAME}

The present invention relates to a biomass-derived polymer resin composition and a method for producing the same, and more particularly, to a furan-based polyester carbonate having improved heat resistance and impact resistance, and a method for producing the same.

In general, polymers such as polycarbonate and polyester are manufactured using raw materials derived from petroleum resources. However, in recent years, there is concern about the depletion of petroleum resources, and the provision of a polymer resin using raw materials obtained from biomass resources such as plants is required. In addition, there is also a concern that global warming due to an increase in carbon dioxide emission and accumulation causes climate change, etc., and development of a polymer resin using plant-derived monomers with very little carbon emission during the manufacturing process as a raw material is required.

Isosorbide (1,4:3,6-dianhydrohexitol, 1,4:3,6-dianhydrohexitol) is different from existing raw materials based in the petrochemical industry, plant resources such as corn and potatoes It is a raw material obtained from When isosorbide is used as a monomer of engineering plastics such as polycarbonate, it has excellent thermal properties because it is structurally hard.

Conventionally, it has been proposed to use isosorbide as a plant-derived monomer to obtain polycarbonate by esterification with diphenyl carbonate (see Patent Document 1). However, the obtained polymer has a colorless, non-transparent brown color, and the physical properties are also significantly lower than those of conventional polycarbonate polymers. In addition, there has been an attempt to improve the rigidity of homopolycarbonate made of isosorbide by copolymerizing isosorbide and a diol aliphatic compound (see Patent Document 2).

On the other hand, there is a case of developing plant-derived PET resin using terephthalic acid, isosorbide, 1,4-cyclohexanedimethanol (CHDM), and ethylene glycol, which are raw materials for PET resin. (See Patent Document 3). Due to the hard structure of terephthalic acid and isosorbide, heat resistance can be increased, but the impact resistance is remarkably deteriorated such as the molded article is easily broken even by a small impact, and there is a problem in that an expensive catalyst must be used.

[Prior Patent Literature]

- Patent Document 1: British Patent Publication No. 1079686 (1967.08.16.)

- Patent Document 2: Korean Patent Publication No. 10-1080669 (2011.11.01.)

- Patent Document 3: Korean Patent Publication No. 10-1558574 (2015.10.01.)

Accordingly, the present invention is to provide an eco-friendly furan-based polyester carbonate having high heat resistance and transparency characteristics of the existing polymer material and a method for manufacturing the same while improving the impact strength, which is one of the disadvantages of the conventional eco-friendly material-derived polycarbonate resin. do.

In order to solve the above problems, the present invention provides a repeating unit represented by the following formula (1); a repeating unit represented by the following formula (2); a repeating unit represented by the following formula (3); and a repeating unit represented by the following Chemical Formula 4; provides a furan-based polyester carbonate comprising.

[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

In Formulas 3 and 4, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 hetero alkylene group or C 2 to C 40 heteroaryl it's rengi

In order to solve the another problem, the present invention provides a compound represented by the following formula (5); a compound represented by the following formula (6); a compound represented by the following formula (7); And a compound represented by the following formula (8); provides a furan-based polyester carbonate manufacturing method comprising the step of polymerizing the monomers comprising the.

[Formula 5]

[Formula 6]

[Formula 7]

[Formula 8]

In Formulas 5, 6 or 8, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 heteroalkylene group or C 2 to 40 C a hetero arylene group, and R ₁ to R ₆ are each independently hydrogen, a substituted or unsubstituted C1-C20 alkyl group or a C6-C20 aryl group.

In addition, the compound represented by Formula 5 is diphenyl terephthalate, diphenyl isophthalate, diphenyl phthalate, diphenyl 4,4-biscyclohexane carboxylate, diphenyl succinate, diphenyl glutarate, diphenyl adi From the group consisting of pate, diphenyl pimelate, diphenyl suberate, diphenyl nonane-1,9-dicarboxylate, diphenyl biphenyl 4,4'-dicarboxylate and linear aliphatic diphenyl carboxylate compounds at least one selected from the group consisting of diphenyl carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, dimethyl carbonate, diethyl carbonate and dibutyl carbonate, and the compound represented by Formula 6 is at least one selected from the group consisting of diphenyl carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, and dibutyl carbonate. and the compound represented by Formula 8 is dimethyl 2,5-furandicarboxylate, diethyl 2,5-furandicarboxylate, dipropyl 2,5-furandicarboxylate, dibutyl 2,5 -Provides a furan-based polyester carbonate manufacturing method, characterized in that at least one selected from the group consisting of -furandicarboxylate and diphenyl 2,5-furandicarboxylate.

In addition, the monomer represented by Chemical Formula 8 provides a method for producing a furan-based polyester carbonate, characterized in that it is added in an amount of 30 to 90 mol% based on 100 mol% of the total monomers represented by Chemical Formulas 5 to 8.

The furan-based polyester carbonate prepared by using a specific monomer according to the present invention can effectively improve the impact strength while retaining excellent transparency and heat resistance compared to the existing polycarbonate derived from vegetable powder, which is used by the existing polycarbonate. It enables the provision of materials to various fields such as sheets, containers, lenses, light diffusion, optics, and construction, for example.

Hereinafter, preferred embodiments of the present invention will be described in detail. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. Throughout the specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

The present inventors studied to develop an eco-friendly furan-based polyester carbonate having high glass transition temperature and high transparency characteristics of conventional polycarbonate while improving impact strength, which is one of the disadvantages of conventional bio-derived polycarbonate resins. As a result of repeated use, when a specific dicarboxyl compound is used in combination with a specific diester carbonate monomer and a monomer containing isosorbide and furan-based carboxylate is used as a diol component, when manufactured through melt polycondensation, the existing vegetable powder It has been found that the impact strength can be effectively improved while retaining superior transparency and heat resistance compared to the derived polycarbonate, leading to the present invention.

Accordingly, the present invention relates to a repeating unit represented by the following formula (1); a repeating unit represented by the following formula (2); a repeating unit represented by the following formula (3); and a repeating unit represented by the following Chemical Formula 4; discloses a furan-based polyester carbonate comprising.

[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

In Formulas 3 and 4, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 hetero alkylene group or C 2 to C 40 heteroaryl it's rengi

Hereinafter, it will be described in detail through the manufacturing process of the furan-based polyester carbonate according to the present invention.

The furan-based polyester carbonate production method according to the present invention includes a compound represented by the following formula (5); a compound represented by the following formula (6); a compound represented by the following formula (7); And a compound represented by the following formula (8); comprising the step of polymerization reaction of the monomers comprising the.

[Formula 5]

[Formula 6]

[Formula 7]

[Formula 8]

In Formulas 5, 6 or 8, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 heteroalkylene group or C 2 to 40 C a hetero arylene group, and R ₁ to R ₆ are each independently hydrogen, a substituted or unsubstituted C1-C20 alkyl group or a C6-C20 aryl group.

The compound represented by Formula 5 and the compound represented by Formulas 7 and 8 react to form an ester bond, and the compound represented by Formula 6 and the compound represented by Formula 7 and 8 react to form a carbonate bond .

Here, the dicarboxyl compound represented by Formula 5 is, for example, diphenyl terephthalate, diphenyl isophthalate, diphenyl phthalate, diphenyl 4,4-biscyclohexane carboxylate, diphenyl succinate, diphenyl glutarate , diphenyl adipate, diphenyl pimelate, diphenyl suberate, diphenyl nonane-1,9-dicarboxylate, diphenyl biphenyl 4,4'-dicarboxylate and aliphatic diphenyl carboxylate compounds of a linear structure It may be at least one selected from the group consisting of, preferably diphenyl terephthalate.

In this case, the amount of the dicarboxyl compound represented by Formula 5 may be added in an amount of 10 to 90 mol% based on 100 mol% of the total dicarboxyl compound represented by Formula 5 and the compound represented by Formula 6, preferably For example, it may be added in an amount of 20 to 80 mol%. When the content of the dicarboxyl compound represented by Formula 5 does not reach a certain level, it may be difficult to achieve heat resistance and impact strength characteristics according to the purpose of the final furan-based polyester carbonate.

In addition, the diester carbonate compound represented by Formula 6 is, for example, at least one selected from the group consisting of diphenyl carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, dimethyl carbonate, diethyl carbonate, and dibutyl carbonate. and preferably diphenyl carbonate.

In addition, the furan-based carboxylate compound represented by Formula 8 includes dimethyl 2,5-furandicarboxylate, diethyl 2,5-furandicarboxylate, dipropyl 2,5-furandicarboxylate, and di It may be at least one selected from the group consisting of butyl 2,5-furandicarboxylate and diphenyl 2,5-furandicarboxylate, preferably 2,5-furandicarboxylate.

Here, the monomer represented by Chemical Formula 8 may be added in an amount of 1 to 49 mol% based on 100 mol% of the total monomers represented by Chemical Formulas 5 to 8, preferably 5 to 48 mol%, more preferably It may be added in an amount of 10 to 45 mol%. If the content does not reach a certain level, the impact strength of the furan-based polyester carbonate may be lowered, and if the content is excessive, heat resistance may be lowered.

Meanwhile, in the present invention, a compound represented by the following formula (9) may be further included as a diol component other than the diol component represented by the above formula (7).

[Formula 9]

In Formula 9, X is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 hetero alkylene group or a C 2 to C 40 hetero arylene group .

The diol represented by Formula 9 is, for example, ethylene glycol, 1,3-propanediol, 1,2-propanediol, 1,4-butanediol, 1,3-butanediol, 1,2-butanediol, and 1,5-heptane. Diol, 1,6-hexanediol, 4,4'-isopropylidene dicyclohexanol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,4-cyclohexanedimethanol, 2,2-bis (4 -Hydroxyphenyl) propane (bisphenol A), 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane, 2,2-bis (4-hydroxy-3,5-diethylphenyl) Propane, 2,2-bis(4-hydroxy-(3,5-diphenyl)phenyl)propane, 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane, 2,2 -bis(4-hydroxyphenyl)pentane, 2,4'-dihydroxy-diphenylmethane, bis(4-hydroxyphenyl)methane, bis(4-hydroxy-5-nitrophenyl)methane, 1, 1-bis(4-hydroxyphenyl)ethane, 3,3-bis(4-hydroxyphenyl)pentane, 1,1-bis(4-hydroxyphenyl)cyclohexane, bis(4-hydroxyphenyl)sulfone , 2,4'-dihydroxydiphenylsulfone, bis(4-hydroxyphenyl)sulfide, 4,4'-dihydroxydiphenyl ether, 4,4'-dihydroxy-3,3'- Dichlorodiphenyl ether, 4,4'-dihydroxy-2,5-diethoxydiphenyl ether, 9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene, 9,9-bis (4-(2-hydroxyethoxy-2-methyl)phenyl)fluorene, 9,9-bis(4-hydroxyphenyl)fluorene and 9,9-bis(4-hydroxy-2-methylphenyl) It may be at least one selected from the group consisting of fluorene.

The furan-based polyester carbonate may have a weight average molecular weight of 1,000 to 100,000, preferably 5,000 to 50,000.

The polymerization reaction of the monomers is a transesterification reaction of a multiple hydroxy group compound with a diester carbonate and a dicarboxylate compound, and a multiple hydroxy group compound, a dicarboxyl compound, and a diester carbonate are mixed in the presence of an inert gas, and usually 100 to 300 under reduced pressure. The reaction is carried out at °C. The decompression degree is changed stepwise, and finally, the by-product is removed out of the reaction system by setting it to 1 Torr or less. The reaction time is usually about 0.1 to 12 hours. Preferably, the polymerization according to the present invention is a melt polymerization method, comprising: a first reaction step of 50 to 750 Torr under reduced pressure and 100 to 200° C. for 0.1 to 5 hours; and a second reaction step performed under reduced pressure of 10 Torr or less, at a temperature of 200 to 270° C. for 0.1 to 10 hours.

The furan-based polyester carbonate according to the present invention prepared by the above method can effectively improve impact strength while retaining excellent heat resistance compared to the existing vegetable-derived polycarbonate. Specifically, the polyester carbonate according to the present invention has an IZOD impact strength (23°C, notch impact strength of a 1/8" specimen) measured according to ASTM D 256 of 10 kgf cm/cm or more, preferably 15 kgf· cm/cm or more, and a glass transition temperature (Tg) of 100 to 140°C, preferably 105 to 130°C, can be realized.

A polymerization catalyst may be used to speed up the polymerization rate in the furan-based polyester carbonate synthesis process according to the present invention. Examples of the polymerization catalyst include alkali metals such as lithium hydroxide, sodium hydroxide and potassium hydroxide, hydroxides of alkaline earth metals such as magnesium hydroxide, calcium hydroxide, and strontium hydroxide, hydroxides of boron and aluminum, alkali metal salts, alkaline earth metal salts, and quaternary ammonium salts , alkali metal or alkaline earth metal alkoxide, alkali metal or alkaline earth metal organic acid salt, zinc compound, boron compound, silicon compound, germanium compound, organotin compound, lead compound, antimony compound, manganese compound, titanium compound, zirconium compound, etc. The catalyst normally used for an esterification reaction or transesterification reaction is mentioned. The said polymerization catalyst may be used independently and may be used in combination of 2 or more types. ^{The amount of these polymerization catalysts used is preferably 1×10 -9} to 1×10 ^-5 equivalents, more preferably 1×10 ^-8 to 5×10 ^-6 equivalents with respect to 1 mol of the dihydric phenol of the raw material. selected from the range.

The furan-based polyester carbonate according to the present invention may further include another additive according to each use within a range not departing from its purpose. As an additional additive, a deactivator, a UV absorber, a mold release agent, a heat stabilizer, an antioxidant, etc. may be added alone or in a mixture of two or more in a range generally used.

The production of the furan-based polyester carbonate according to the present invention is not particularly limited, and a method or apparatus commonly used for the production of a polymer resin composition, etc. may be used without any other limitation, but a melt polymerization method may be preferably used. .

That is, the furan-based polyester carbonate of the embodiment may be prepared by melt-kneading each component included therein. As an apparatus used for the said melt-kneading, a Banbury mixer, a kneading roll, an extruder, etc. are mentioned. Among them, an extruder is preferable from the viewpoint of kneading efficiency, and a multi-screw extruder such as a twin-screw extruder is preferable.

In the said twin screw extruder, a more preferable aspect is as follows. As for the screw shape, single-line, two-row, and three-line screw screws can be used. Moreover, as an extruder, what has a vent which can degass|degas the water|moisture content in a raw material and the volatile gas generated from melt-kneaded resin can be used preferably. In addition, it is also possible to provide a screen for removing foreign substances or the like mixed in the extruded raw material in the zone in front of the extruder die, and to remove the foreign substances from the resin composition. Examples of the screen include a wire mesh, a screen changer, and a sintered metal plate (disk filter, etc.).

After the furan-based polyester carbonate obtained as described above is manufactured in the form of pellets, it may be injection molded and used to manufacture various products. In such injection molding, not only the usual molding method but also injection compression molding, injection press molding, gas-assisted injection molding, foam molding (including those by injection of supercritical fluid), insert molding, in-molding, depending on the purpose as appropriate. Molded articles can be obtained by using injection molding methods such as de-coating molding, thermal insulation mold molding, rapid heating and cooling mold molding, two-color molding, sandwich molding, and ultra-high speed injection molding. For molding, either a cold runner method or a hot runner method may be selected.

In addition, the furan-based polyester carbonate may be used in the form of various types of release extrusion-molded articles, sheets, films, and the like by extrusion molding. Moreover, an inflation method, a calendering method, a casting method, etc. can be used for shaping|molding a sheet|seat and a film. Moreover, it is also possible to shape|mold as a heat-shrinkable tube by adding a specific extending|stretching operation.

In addition, it is also possible to use the furan-based polyester carbonate as a molded article by rotational molding, blow molding, or the like. By the above molding process, a molded article having transparency and excellent designability can be obtained.

On the other hand, according to another embodiment of the present invention, a molded article including the prepared furan-based polyester carbonate may be provided. The molded article means an article obtained by molding the furan-based polyester carbonate of one embodiment described above.

The molded article is preferably transparent depending on the properties required in the field in which it is used. The transparency of such a resin molded article can be evaluated by the total light transmittance in the visible region of the resin molded article, and it is preferable that the visible light total light transmittance is high. Specifically, the resin molded article of the embodiment may have a total visible light transmittance of 50% or more, or 50 to 99% at a thickness of 3 mm.

The specific use of the molded article is not limited, and the use of lenses such as transparent films, sheets, bottles and containers, camera lenses, and finder lenses, retardation films for displays, diffusion sheets, polarizing films, optical disks, optical materials, optical parts, It can be used as a window member for construction and the like.

Hereinafter, specific examples according to the present invention will be described. The abbreviation of the compound used in description of an Example is as follows.

- ISS: isosorbide

- CHDM: 1,4-cyclohexanedimethanol (1,4-cyclohexanedimethanol)

- DPT: diphenyl terephthalate

- DPC: diphenyl carbonate

- DM-FDCA: dimethyl 2,5-furandicarboxylate (dimethyl 2,5-furandicarboxylate)

Example 1

31.83 parts by weight of DPT (0.1 mol), 85.69 parts by weight of DPC (0.4 mol), 7.307 parts by weight of ISS (0.05 mol), 82.8 parts by weight of DM-FDCA (0.45 mol) and 2.5×10 ^-6 mol of calcium acetate as a catalyst in 1 L It was put into a solenoid reactor, and the reaction vessel temperature was heated to 150° C. as a first step process of the reaction under a nitrogen atmosphere, and the raw materials were melted while stirring if possible.

Then, the pressure inside the reactor was reduced from normal pressure to 400 Torr, and the temperature was raised to 190° C. for 30 minutes. After maintaining the entire reaction vessel at 190°C for 30 minutes, while increasing the temperature to 200°C for 10 minutes, the internal pressure was reduced to 100 Torr for 20 minutes, and the generated phenol was removed from the reactor. After maintaining the entire reaction vessel at 200° C. for 30 minutes, as a second step process, the pressure in the reaction vessel is reduced to 50 Torr, the temperature of the reaction vessel is raised to 230° C. for 30 minutes, and the generated phenol is discharged out of the reaction vessel. removed. When the torque of the stirrer was increased, the temperature of the reactor was raised to 250° C. for 5 minutes, and the pressure in the reaction vessel was reached to 1 Torr or less in order to remove phenol that was additionally generated. After reaching a predetermined stirring torque, the reaction was terminated and the resulting reactant was taken to prepare a copolymer.

Examples 2 to 6, Comparative Examples 1 to 5

A copolymer was prepared in the same manner as in Example 1, except that in Example 1, each monomer was adjusted to the content ratio (mol% with respect to the total monomer content) shown in Table 1 below.

test example

The glass transition temperature and impact strength of the copolymers prepared according to the above Examples and Comparative Examples were measured by the following method, and the results are shown in Table 1 below.

(1) Glass transition temperature (Tg)

Using a differential scanning calorimeter (Q200, TA Instruments) about 10 mg of the sample was measured by heating a temperature increase rate of 10 ° C./min, and the glass transition temperature (Tg) was calculated according to ASTM D3418.

(2) Impact strength

After drying the prepared copolymer at 120° C. for 3 hours or more, the specimen was injected using an injection machine, and the IZOD impact strength (notch impact strength of 1/8” specimen) was measured at room temperature (23° C.) according to ASTM D256. .

Referring to Table 1, according to the present invention, a dihydroxy compound containing isosorbide and a furan-based carboxylate compound containing DM-FDCA are used as raw materials, and a specific dicarboxyl compound is used in combination with a diester carbonate monomer. When prepared through a melt polycondensation reaction (Examples 1 to 6), the glass transition temperature is at a level of 108 ° C. or higher and the impact strength is at a level of 16 kgf · cm/cm or higher, compared to the existing vegetable-derived polycarbonate (Comparative Example 2). It can be seen that while having transparency, excellent heat resistance and impact strength are realized.

In contrast, in the case of polycarbonate derived from existing vegetable ingredients (Comparative Examples 1 to 3), it can be seen that the impact strength does not reach the Example according to the present invention or the heat resistance is poor, and when only conventional CHDM is applied as a diol component (Comparative In Example 4), it can be seen that the impact strength is excellent, but the heat resistance is significantly lowered.

On the other hand, even if a dihydroxy compound containing isosorbide and a furan-based carboxylate compound containing DM-FDCA are used, when a dicarboxyl compound such as DPT is not used (Comparative Example 5), this It can be seen that it is difficult to achieve the desired level in the invention.

The preferred embodiment of the present invention has been described in detail above. The description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains will understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention.

Therefore, the scope of the present invention is indicated by the claims to be described later rather than the above detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concept of the claims are included in the scope of the present invention. should be interpreted

Claims (4)

a repeating unit represented by the following formula (1); a repeating unit represented by the following formula (2); a repeating unit represented by the following formula (3); And a repeating unit represented by the following formula (4); Furan-based polyester carbonate comprising:
[Formula 1]

[Formula 2]

[Formula 3]

[Formula 4]

In Formulas 3 and 4, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 hetero alkylene group or C 2 to C 40 heteroaryl it's rengi a compound represented by the following formula (5); a compound represented by the following formula (6); a compound represented by the following formula (7); And a compound represented by the following formula (8); Furan-based polyester carbonate manufacturing method comprising the step of polymerization reaction of monomers comprising:
[Formula 5]

[Formula 6]

[Formula 7]

[Formula 8]

In Formulas 5, 6 or 8, A is a substituted or unsubstituted C 1 to C 40 alkylene group or C 6 to C 40 arylene group, a substituted or unsubstituted C 1 to C 40 heteroalkylene group or C 2 to 40 C a hetero arylene group, and R ₁ to R ₆ are each independently hydrogen, a substituted or unsubstituted C1-C20 alkyl group or a C6-C20 aryl group. 3. The method of claim 2,
The compound represented by Formula 5 is diphenyl terephthalate, diphenyl isophthalate, diphenyl phthalate, diphenyl 4,4-biscyclohexane carboxylate, diphenyl succinate, diphenyl glutarate, diphenyl adipate, Diphenyl pimelate, diphenyl suberate, diphenyl nonane-1,9-dicarboxylate, diphenyl biphenyl 4,4'-dicarboxylate, and a linear aliphatic diphenyl carboxylate compound selected from the group consisting of more than one type,
The compound represented by Formula 6 is at least one selected from the group consisting of diphenyl carbonate, dinaphthyl carbonate, bis (diphenyl) carbonate, dimethyl carbonate, diethyl carbonate and dibutyl carbonate,
The compound represented by Formula 8 is dimethyl 2,5-furandicarboxylate, diethyl 2,5-furandicarboxylate, dipropyl 2,5-furandicarboxylate, dibutyl 2,5-furan A method for producing a furan-based polyester carbonate, characterized in that at least one selected from the group consisting of dicarboxylate and diphenyl 2,5-furandicarboxylate. 4. The method of claim 2 or 3,
The method for producing a furan-based polyester carbonate, characterized in that the monomer represented by Formula 8 is added in an amount of 30 to 90 mol% based on 100 mol% of the total monomers represented by Formulas 5 to 8.