KR102096543B1 - Eco-friendly thermoplastic polyether ester elastomer comprising anhydrosugar alcohol derivative and method for preparing the same - Google Patents

Abstract

The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for manufacturing the same, and more specifically, a furan group dicarboxyl compound in the hard segment and the soft segment, or It includes a unit derived from a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound, and contains a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass in the soft segment, which is an elastic property that is an important property of elastomers. And physical properties (e.g., hardness, thermal decomposition temperature, etc.) while maintaining excellent properties, it is possible to more easily control various melting points required in the molding process of the final product, and solve the problem of depletion of petroleum resources as a finite resource. , To further improve the eco-friendliness Thermoplastic polyether ester elastomer with and to a production method thereof.

Description

Eco-friendly thermoplastic polyether ester elastomer comprising anhydrosugar alcohol derivative and method for preparing the same}

The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for manufacturing the same, and more specifically, a furan group dicarboxyl compound in the hard segment and the soft segment, or It includes a unit derived from a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound, and contains a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass in the soft segment, which is an elastic property that is an important property of elastomers. And physical properties (e.g., hardness, thermal decomposition temperature, etc.) while maintaining excellent properties, it is possible to more easily control various melting points required in the molding process of the final product, and solve the problem of depletion of petroleum resources as a finite resource. , To further improve the eco-friendliness Thermoplastic polyether ester elastomer with and to a production method thereof.

Elastomeric elastomers are used in many applications such as packaging containers, automobile interior materials, and elastic fibers due to their unique elastic properties. Especially, in the case of thermoplastic polyether ester copolymers, their use is increasing due to a wide range of elastic properties. Further, unlike rubber materials that cannot be recycled, the demand for the elastomer is greatly increased because it is easy to recycle.

Thermoplastic elastomers are polymers that have two different properties: thermoplastics that can be reformed upon heating and elastic properties of rubber-like elastomers. The form of the thermoplastic elastomer is a block copolymer, and generally consists of a hard segment block capable of exhibiting thermoplastic characteristics and a soft segment block capable of exhibiting elastic properties of the elastomer, and exhibits two different properties simultaneously.

In general, it is a known fact that a polyether ester copolymer having a polybutylene terephthalate-based polyester as a hard segment and a polybutylene ether ester as a soft segment exhibits excellent elastic properties, and a polyethylene ether ester to lower the manufacturing cost. It is also used as a soft segment.

U.S. Patent No. 3,023,192 discloses hard segment / soft segment copolymerized polyesters and elastomers made therefrom. Hard segment / soft segment copolymerized polyesters are prepared from dihydroxy compounds selected from (1) dicarboxylic acid or ester forming derivatives, (2) polyethylene glycol ethers, and (3) bisphenols and lower aliphatic glycols. Polyethers used as soft segments with polyethylene glycol include polypropylene glycol, polytetramethylene glycol, polyhexamethylene glycol, and the like, and polyethers having a molecular weight of about 350 to 6,000 are used.

U.S. Patent 4,937,314 discloses a thermoplastic polyether ester elastomer comprising at least 70 parts by weight of soft segments derived from poly (alkylene oxide) glycol and terephthalic acid. The hard segment constitutes 10 to 30 parts by weight of the elastomer, and among these hard segments, poly (1,3-propylene terephthalate) is 95 to 100 parts by weight. The molecular weight of the poly (alkylene oxide) glycol is about 1,500 to about 5,000, and the carbon to oxygen ratio is suggested to be 2 to 4.3.

Thermoplastic elastomers based on those exemplified in the prior art are soft segments, mainly polytetramethylene glycol ether, copolymers of tetrahydrofuran and 3-alkyltetrahydrofuran, polyethylene glycol ether, polytrimethylene glycol ether and copolymers thereof Use The melting point and physical properties of these copolymers are determined by the molecular weight and composition ratio of the polyalkylene glycol ether used as the soft segment. In the case of using a polyalkylene glycol ether having a high molecular weight to express tough physical and elastic properties, it cannot be applied to a process requiring a low melting point manufacturing process because of its high melting point. In addition, when the polyethylene glycol ether is formed as a soft segment, the thermal stability is rapidly deteriorated when the content of the soft segment is added by 20% by weight or more.

In addition, in recent years, active researches on eco-friendly biomass have been attracting attention as part of efforts to reduce carbon dioxide emissions, a major cause of global warming, and to replace limited expensive oil resources. There is an active demand for conversion from conventional petroleum-derived plastics to plastics derived from plant materials with little environmental load.

In order to solve the problems as described above, the present invention further improves eco-friendliness, and while maintaining excellent elastic and physical properties of the thermoplastic elastomer, it is possible to more easily control the melting point required in various ways in the molding process of the final product. It is an object to provide a thermoplastic thermoplastic ether ester elastomer and a method for manufacturing the same.

In order to solve the above technical problem, the present invention is a thermoplastic polyether ester elastomer composed of a hard segment and a soft segment, wherein the hard segment contains a dicarboxyl compound and an aliphatic diol component as a polymerization unit, and the soft segment is a polymerization unit As a dicarboxyl compound and a glycol component, wherein the glycol component includes anhydrosugar alcohol-alkylene glycol, and the dicarboxyl compound is a furan group dicarboxyl compound, or a furan group dicarboxyl compound and an aromatic dica A thermoplastic polyether ester elastomer, which is a combination of a leboxyl compound, is provided.

According to another aspect of the present invention, the polycarboxyl compound and a polyol are subjected to a polycondensation reaction, wherein the polyol contains an aliphatic diol component and a glycol component, and the glycol component is anhydrosugar alcohol-alkylene glycol. Provided is a method for producing a thermoplastic polyether ester elastomer, wherein the dicarboxyl compound is a furan group dicarboxyl compound or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound.

According to another aspect of the present invention, a molded article comprising the thermoplastic polyether ester elastomer of the present invention is provided.

The thermoplastic polyether ester elastomer (TPEE) according to the present invention is composed of a hard segment and a soft segment, and a furan group dicarboxyl compound or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound in the hard segment and soft segment. It contains units derived from, and contains units derived from anhydrosugar alcohol derivatives with improved reactivity derived from biomass in the soft segment, which are important properties of elastomers such as elastic properties and physical properties (for example, hardness, thermal decomposition temperature, etc.). While maintaining excellent, it is possible to more easily adjust the melting point required in various ways in the final product molding process, to solve the problem of depletion of petroleum resources, which is a finite resource, and to further improve eco-friendliness.

Hereinafter, the present invention will be described in detail.

The hard segment constituting the thermoplastic polyether ester elastomer of the present invention contains a dicarboxyl compound and an aliphatic diol component as polymerization units.

The dicarboxyl compound may be a furan group dicarboxyl compound, or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound.

The furan group dicarboxyl compound is, for example, dimethyl-2,3-furan dicarboxylate, dimethyl-2,4-furan dicarboxylate, dimethyl-3,4-furan dicarboxylate, dimethyl- 2,5-furan dicarboxylate, 2,3-furan dicarboxylic acid, 2,4-furan dicarboxylic acid, 3,4-furan dicarboxylic acid, 2,5-furan dicarboxylic acid, Diethyl-2,3-furan dicarboxylate, diethyl-2,4-furan dicarboxylate, diethyl-3,4-furan dicarboxylate, diethyl-2,5-furan dicarboxyl Rate, dipropyl-2,3-furan dicarboxylate, dipropyl-2,4-furan dicarboxylate, dipropyl-3,4-furan dicarboxylate, dipropyl-2,5-furan dica Leboxylate or a mixture of two or more of these, preferably dimethyl-2,5-furan dicarboxylate, diethyl-2,5-furan dicarboxylate, dipropyl-2,5-furan dica Leboxylate, 2,5-furan dicar Acids, or it may be a mixture of two or more of them, and the like.

In one embodiment, as the furan group dicarboxyl compound, in order to improve eco-friendliness, a furan group dicarboxyl compound derived from biomass may be used.

The aromatic dicarboxyl compound may be an aromatic dicarboxylic acid or an aromatic dicarboxylate compound, and more specifically, terephthalic acid, isophthalic acid, 1,5-dinaphthalene dicarboxylic acid, 2,6-dinaphthalene Dicarboxylic acid, dimethyl terephthalate, dimethyl isophthalate, or a combination thereof.

The aliphatic diol component included as a polymerization unit in the hard segment may be a linear or cyclic aliphatic diol, specifically, a linear aliphatic diol having 2 to 8 carbon atoms or a cyclic aliphatic diol having 3 to 8 carbon atoms, and more specifically , Ethylene glycol, propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,4-cyclohexanedimethanol or a combination thereof.

The soft segment constituting the thermoplastic polyether ester elastomer of the present invention contains a dicarboxyl compound and a glycol component as polymerization units, and the glycol component includes anhydrosugar alcohol-alkylene glycol.

As the dicarboxyl compound included as a polymerized unit in the soft segment, one as described in the hard segment can be used.

The anhydrosugar alcohol-alkylene glycol is an adduct obtained by reacting alkylene groups with hydroxy groups at both ends or one end (preferably both ends) of anhydrosugar alcohol.

In one embodiment, the anhydrosugar alcohol may be selected from the group consisting of isosorbide, isomannide, isoidide, or combinations thereof, preferably isosorbide.

In one embodiment, the alkylene oxide may be a linear alkylene oxide having 2 to 8 carbon atoms or a branched alkylene oxide having 3 to 8 carbon atoms, and more specifically, ethylene oxide, propylene oxide, or a combination thereof.

In one embodiment, the anhydrosugar alcohol-alkylene glycol may be a compound represented by Formula 1 below.

[Formula 1]

In Chemical Formula 1,

R ¹ and R ² each independently represent a C 2 to C 8 linear or a C 3 to C 8 branched alkylene group,

m and n each independently represent an integer from 0 to 15,

m + n represents the integer of 1-30.

More preferably, in Chemical Formula 1,

R ¹ and R ² each independently represent an ethylene group, a propylene group or an isopropylene group, preferably R ¹ and R ² are the same as each other,

m and n each independently represent an integer from 1 to 14,

m + n represents the integer of 2-15.

In one embodiment, as the anhydrosugar alcohol-alkylene glycol, the following isosorbide-propylene glycol, isosorbide-ethylene glycol, or mixtures thereof may be used.

[Isosorbide-propylene glycol]

In the above formula, a and b each independently represent an integer of 0 to 15, a + b may be an integer of 1 to 30, more preferably a and b each independently represent an integer of 1 to 14, a + b may be an integer from 2 to 15.

[Isosorbide-ethylene glycol]

In the above formula, c and d each independently represent an integer of 0 to 15, c + d may be an integer of 1 to 30, more preferably c and d each independently represent an integer of 1 to 14, c + d may be an integer from 2 to 15.

Within 100% by weight of the thermoplastic polyether ester elastomer (TPEE) of the present invention, the isosorbide-alkylene glycol is 1% by weight or more, 2% by weight or more, 3% by weight or more, 5% by weight or more, 8% by weight Or more, 10% or more, or 15% or more, and 40% or less, 39% or less, 35% or less, 33% or less, 31% or less, 28% or less, or 25% or less It can be included as For example, it may be included in an amount of 1% to 40% by weight, such as 3 to 40% by weight, such as 3% to 39% by weight, such as 3% to 35% by weight, such as 3% to 31% by weight. When the content of isosorbide-alkylene glycol in TPEE is lower than the above range, the eco-friendliness of the elastomer is poor, and when the content is too high, the crystalline part of the elastomer disappears and the melting point disappears.

The glycol component included as a polymerized unit in the soft segment may further include polyalkylene ether glycol.

The polyalkylene ether glycol may be poly (C ₂ -C ₈ ) alkylene ether glycol, and preferably may be selected from the group consisting of polyethylene ether glycol, polypropylene ether glycol, polytetramethylene ether glycol or combinations thereof. And more preferably polytetramethylene ether glycol.

The soft segment may be included in, for example, 5% to 75% by weight, and more preferably 30% to 70% by weight in 100% by weight of the thermoplastic polyether ester elastomer (TPEE) of the present invention. have. It is preferable in terms of blow molding processability, mechanical strength and flexibility that the soft segment content in the TPEE is within the above range. If the soft segment content in the TPEE is too small than the above-mentioned level, the hardness becomes high, so it is difficult to expect flexibility. On the contrary, if it is too large, it is difficult to expect high heat resistance.

According to another aspect of the present invention, the polycarboxyl compound and a polyol are subjected to a polycondensation reaction, wherein the polyol contains an aliphatic diol component and a glycol component, and the glycol component is anhydrosugar alcohol-alkylene glycol. Provided is a method for producing a thermoplastic polyether ester elastomer, wherein the dicarboxyl compound is a furan group dicarboxyl compound or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound.

As the dicarboxyl compound, the same as described above for the hard segment can be used.

The polycondensation reaction may be carried out under reduced pressure, optionally in the presence of a catalyst, for example, at a temperature condition of 210 to 250 ° C.

The thermoplastic polyether ester elastomer of the present invention is suitable for molding such as blow, extrusion, injection, and the final product while maintaining excellent elastic and physical properties (for example, hardness and thermal decomposition temperature), which are important properties of the elastomer. It can easily adjust the melting point required in a variety of molding processes.

Accordingly, according to another aspect of the present invention, a molded article comprising the thermoplastic polyether ester elastomer of the present invention is provided.

Hereinafter, the present invention will be described in more detail through Examples and Comparative Examples. However, the scope of the present invention is not limited to these.

[ Example ]

< Anhydrous sugar  Preparation of alcohol-alkylene glycol>

Manufacturing example  A1 : Isosorbide- Ethylene glycol (Isosorbide ethylene Oxide  Preparation of 5 mol adduct)

73.1 g (0.5 mol) of isosorbide, 110 g (2.5 mol) of ethylene oxide and 0.2 g of sodium hydroxide as a catalyst are placed in a pressurized reaction device equipped with a column, stirrer, thermometer and heater equipped with a nitrogen gas pipe and a cooling device. The temperature was gradually raised. Isosorbide-ethylene glycol (ethylene oxide 5 of isosorbide), which is a form in which hydrogen of hydroxy groups at both ends of isosorbide is substituted with hydroxyethyl groups by reacting while maintaining at a temperature of 120 캜 to 160 캜 for 2 hours to 4 hours Molar adduct).

Manufacturing example  A2 : Isosorbide- Ethylene glycol (Isosorbide ethylene Oxide  Preparation of 10 mol adduct)

73.1 g (0.5 mol) of isosorbide, 220 g (5 mol) of ethylene oxide and 0.2 g of sodium hydroxide as a catalyst were placed in a reaction device equipped with a column, stirrer, thermometer and heater equipped with a nitrogen gas pipe and a cooling device, and pressurized. The temperature was gradually raised. Isosorbide-ethylene glycol (ethylene oxide 10 of isosorbide), which is a form in which hydrogen of hydroxy groups at both ends of isosorbide is substituted with hydroxyethyl groups by reacting while maintaining at a temperature of 120 캜 to 160 캜 for 2 hours to 4 hours Molar adduct).

Manufacturing example  B1 : Isosorbide-propylene glycol (isosorbide propylene Oxide  Preparation of 5 mol adduct)

Isosorbide 73.1 g (0.5 mol), 145 g (2.5 mol) of propylene oxide and 0.2 g of sodium hydroxide as a catalyst, equipped with a nitrogen gas pipe and cooling column, stirrer, thermometer and heater, and a pressurized reaction device Put in and gradually heated. Isosorbide-propylene glycol (propylene oxide 5 of isosorbide) in a form in which hydrogen of hydroxy groups at both ends of isosorbide is substituted by a hydroxypropyl group by reacting while maintaining at a temperature of 120 ° C to 160 ° C for 2 to 4 hours Molar adduct).

Manufacturing example  B2 : Isosorbide-propylene glycol (isosorbide propylene Oxide  Preparation of 8 mol adduct)

73.1 g (0.5 mol) of isosorbide, 232 g (4 mol) of propylene oxide and 0.2 g of sodium hydroxide as a catalyst, equipped with a nitrogen gas pipe and cooling column, stirrer, thermometer and heater, and a pressurized reaction device Put in and gradually heated. Isosorbide-propylene glycol (propylene oxide 8 of isosorbide) in a form in which hydrogen of the hydroxyl groups at both ends of isosorbide is substituted with hydroxypropyl groups by reacting while maintaining at a temperature of 120 ° C to 160 ° C for 2 to 4 hours Molar adduct).

<Production of thermoplastic polyether ester elastomer>

Example  1 to 9

Put the reactant of the composition shown in Table 1 below in a 15L melt condensation reactor, and after adding a titanium catalyst of 700ppm based on the acid component (FDME; or a combination of FDME and DMT), by-product while increasing the temperature to 210 ℃ To remove the alcohol produced by, by adding a 300ppm titanium-based catalyst while increasing the temperature to 245 ° C while gradually reducing the pressure of the reaction system to 1 mmHg to prepare a thermoplastic polyether ester elastomer according to Examples 1 to 9.

Comparative example  1 to 3

Put the reactant of the composition shown in Table 2 below in a 15 L melt condensation reactor, and after adding a titanium catalyst of 700 ppm based on the acid component (FDME; or a combination of FDME and DMT), by-product while increasing the temperature to 210 ℃ To remove the alcohol produced by, by adding a 300ppm titanium-based catalyst while increasing the temperature to 245 ° C while gradually reducing the pressure of the reaction system to 1 mmHg to prepare a thermoplastic polyether ester elastomer according to Comparative Examples 1-3.

As can be seen from the results of Tables 1 and 2, the thermoplastic polyether ester elastomers of Examples 1 to 9 according to the present invention (a furan group dicarboxyl compound or a furan group dicarboxyl compound as a dicarboxyl compound) TPEE) containing a combination of aromatic dicarboxyl compounds and containing anhydrosugar alcohol-alkylene glycol in the range of 1 to 40% by weight, while maintaining physical properties such as hardness and thermal decomposition temperature at the same level, eco-friendly To further improve, it can be seen that the melting point of the elastomer is easily adjusted in a lower range.

That is, in Examples 1 to 9 according to the present invention, while maintaining the viscosity, elastic properties, and physical properties (for example, hardness and thermal decomposition temperature, etc.), which are important properties of the elastomer, at the same level, while improving eco-friendliness, In the molding process of the final product, various melting points can be easily adjusted, but in the case of Comparative Example 1 that does not conform to the present invention (TPEE without furanic dicarboxyl compound and anhydrosugar alcohol-alkylene glycol) The eco-friendliness was remarkably poor, the melting point was very high, and in the case of Comparative Example 2 (TPEE containing no furan group dicarboxyl compound), the melting point was very high and in the case of Comparative Example 3 (range exceeding 40% by weight) It can be confirmed that the melting point is not measured because the crystalline portion disappears from TPEE containing anhydrosugar alcohol-alkylene glycol.

Measurement of the physical properties of the thermoplastic elastomer prepared in Examples and Comparative Examples was performed as follows.

(1) Eco-friendly (wt%): Based on the total weight of the polyether ester elastomer, the weight% of the anhydrosugar alcohol (isosorbide), an eco-friendly monomer, was measured.

(2) Intrinsic Viscosity (IV): A polyether ester elastomer was dissolved in phenol / tetrachloroethane (weight ratio 50/50) to make a 0.5% by weight solution, and then measured at 35 ° C with a Uberod viscometer.

(3) Melting Point: Using a differential thermal scanning calorimeter (DSC), the temperature was raised at a heating rate of 10 ° C per minute, followed by cooling and heating again.

(4) Hardness: It was measured by Handpi's Showa D hardness tester.

(5) T _d (° C.): The temperature at a reduction of 5% by weight was measured using a thermogravimetric analyzer (TGA-7 manufactured by Perkin-Elmer).

Claims (17)

A thermoplastic polyether ester elastomer composed of a hard segment and a soft segment,
The hard segment contains a dicarboxyl compound and an aliphatic diol component as a polymerization unit,
The soft segment includes a dicarboxyl compound and a glycol component as polymerization units,
The glycol component comprises 3 to 31% by weight of anhydrosugar alcohol-alkylene glycol, based on 100% by weight of the thermoplastic polyether ester elastomer,
The anhydrosugar alcohol-alkylene glycol is an adduct obtained by reacting an alkylene group with a hydroxyl group at both or one end of the anhydrosugar alcohol,
The anhydrosugar alcohol is selected from the group consisting of isosorbide, isomannide, isoidide, or combinations thereof,
The alkylene oxide is a linear alkylene oxide having 2 to 8 carbon atoms or a branched alkylene oxide having 3 to 8 carbon atoms,
The dicarboxyl compound is a furan group dicarboxyl compound, or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound,
Thermoplastic polyether ester elastomer. The method of claim 1, wherein the furan group dicarboxyl compound is dimethyl-2,3-furan dicarboxylate, dimethyl-2,4-furan dicarboxylate, dimethyl-3,4-furan dicarboxylate, dimethyl -2,5-furan dicarboxylate, 2,3-furan dicarboxylic acid, 2,4-furan dicarboxylic acid, 3,4-furan dicarboxylic acid, 2,5-furan dicarboxylic acid , Diethyl-2,3-furan dicarboxylate, diethyl-2,4-furan dicarboxylate, diethyl-3,4-furan dicarboxylate, diethyl-2,5-furan dicar Dioxylate, dipropyl-2,3-furan dicarboxylate, dipropyl-2,4-furan dicarboxylate, dipropyl-3,4-furan dicarboxylate, dipropyl-2,5-furan Dicarboxylates, or mixtures of two or more of these, thermoplastic polyether ester elastomers. The method of claim 1, wherein the aromatic dicarboxyl compound is terephthalic acid, isophthalic acid, 1,5-dinaphthalene dicarboxylic acid, 2,6-dinaphthalene dicarboxylic acid, dimethyl terephthalate, dimethyl isophthalate, or combinations thereof. A thermoplastic polyether ester elastomer selected from the group consisting of. The thermoplastic polyether ester elastomer according to claim 1, wherein the aliphatic diol component is a linear aliphatic diol having 2 to 8 carbon atoms or a cyclic aliphatic diol having 3 to 8 carbon atoms. The group of claim 1, wherein the aliphatic diol component is ethylene glycol, propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,4-cyclohexanedimethanol, or a combination thereof. Thermoplastic polyether ester elastomer. delete delete delete The thermoplastic polyether ester elastomer according to claim 1, wherein the anhydrosugar alcohol is isosorbide and the alkylene oxide is ethylene oxide, propylene oxide or a combination thereof. The thermoplastic polyether ester elastomer according to claim 1, wherein the anhydrosugar alcohol-alkylene glycol is a compound represented by the following formula (1):
[Formula 1]

In Chemical Formula 1,
R ¹ and R ² each independently represent a C 2 to C 8 linear or a C 3 to C 8 branched alkylene group,
m and n each independently represent an integer from 0 to 15,
However, m + n represents the integer of 1-30. The method according to claim 10, R ¹ and R ² each independently represents an ethylene group, a propylene group or an isopropylene group, m and n each independently represent an integer of 1 to 14, m + n is an integer of 2 to 15 The thermoplastic polyether ester elastomer. delete The thermoplastic polyether ester elastomer according to claim 1, wherein the glycol component included as the polymerization unit in the soft segment further comprises a polyalkylene ether glycol. The thermoplastic polyether ester elastomer according to claim 13, wherein the polyalkylene ether glycol is selected from the group consisting of polyethylene ether glycol, polypropylene ether glycol, polytetramethylene ether glycol or combinations thereof. The thermoplastic polyether ester elastomer of claim 1, wherein the soft segment content in 100% by weight of the thermoplastic polyether ester elastomer is from 5% to 75% by weight. Containing a polycarboxylation reaction of a dicarboxyl compound and a polyol,
here,
The polyol includes an aliphatic diol component and a glycol component,
The glycol component comprises 3 to 31% by weight of anhydrosugar alcohol-alkylene glycol, based on 100% by weight of the thermoplastic polyether ester elastomer,
The anhydrosugar alcohol-alkylene glycol is an adduct obtained by reacting an alkylene group with a hydroxyl group at both or one end of the anhydrosugar alcohol,
The anhydrosugar alcohol is selected from the group consisting of isosorbide, isomannide, isoidide, or combinations thereof,
The alkylene oxide is a linear alkylene oxide having 2 to 8 carbon atoms or a branched alkylene oxide having 3 to 8 carbon atoms,
The dicarboxyl compound is a furan group dicarboxyl compound, or a combination of a furan group dicarboxyl compound and an aromatic dicarboxyl compound,
A method for producing a thermoplastic polyether ester elastomer. A molded article comprising the thermoplastic polyether ester elastomer according to any one of claims 1 to 5, 9 to 11 and 13 to 15.