WO2023182686A1 - 결정화도가 우수한 폴리락타이드 수지 조성물, 및 이의 제조 방법 - Google Patents
결정화도가 우수한 폴리락타이드 수지 조성물, 및 이의 제조 방법 Download PDFInfo
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- WO2023182686A1 WO2023182686A1 PCT/KR2023/002703 KR2023002703W WO2023182686A1 WO 2023182686 A1 WO2023182686 A1 WO 2023182686A1 KR 2023002703 W KR2023002703 W KR 2023002703W WO 2023182686 A1 WO2023182686 A1 WO 2023182686A1
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- WIPO (PCT)
- Prior art keywords
- nucleating agent
- resin composition
- polylactide resin
- weight
- polaractide
- Prior art date
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- 229920000747 poly(lactic acid) Polymers 0.000 title claims abstract description 50
- 239000011342 resin composition Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 22
- 239000002667 nucleating agent Substances 0.000 claims abstract description 73
- 239000011347 resin Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- ISAKRJDGNUQOIC-UHFFFAOYSA-N Uracil Chemical group O=C1C=CNC(=O)N1 ISAKRJDGNUQOIC-UHFFFAOYSA-N 0.000 claims description 46
- JJTUDXZGHPGLLC-UHFFFAOYSA-N lactide Chemical compound CC1OC(=O)C(C)OC1=O JJTUDXZGHPGLLC-UHFFFAOYSA-N 0.000 claims description 23
- 229940035893 uracil Drugs 0.000 claims description 23
- PXQPEWDEAKTCGB-UHFFFAOYSA-N orotic acid Chemical compound OC(=O)C1=CC(=O)NC(=O)N1 PXQPEWDEAKTCGB-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229960005010 orotic acid Drugs 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 37
- 238000001816 cooling Methods 0.000 description 13
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 12
- 239000000454 talc Substances 0.000 description 12
- 229910052623 talc Inorganic materials 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 10
- 238000002425 crystallisation Methods 0.000 description 10
- 230000008025 crystallization Effects 0.000 description 10
- 239000003999 initiator Substances 0.000 description 10
- 239000004626 polylactic acid Substances 0.000 description 10
- 238000001291 vacuum drying Methods 0.000 description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 9
- 238000000113 differential scanning calorimetry Methods 0.000 description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 5
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- JJTUDXZGHPGLLC-IMJSIDKUSA-N 4511-42-6 Chemical compound C[C@@H]1OC(=O)[C@H](C)OC1=O JJTUDXZGHPGLLC-IMJSIDKUSA-N 0.000 description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 3
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920006381 polylactic acid film Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000600 sorbitol Substances 0.000 description 3
- KGLPWQKSKUVKMJ-UHFFFAOYSA-N 2,3-dihydrophthalazine-1,4-dione Chemical compound C1=CC=C2C(=O)NNC(=O)C2=C1 KGLPWQKSKUVKMJ-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- FBPFZTCFMRRESA-NQAPHZHOSA-N Sorbitol Chemical compound OCC(O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-NQAPHZHOSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920002523 polyethylene Glycol 1000 Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 2
- 229960002920 sorbitol Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- JJTUDXZGHPGLLC-ZXZARUISSA-N (3r,6s)-3,6-dimethyl-1,4-dioxane-2,5-dione Chemical compound C[C@H]1OC(=O)[C@H](C)OC1=O JJTUDXZGHPGLLC-ZXZARUISSA-N 0.000 description 1
- RBMHUYBJIYNRLY-UHFFFAOYSA-N 2-[(1-carboxy-1-hydroxyethyl)-hydroxyphosphoryl]-2-hydroxypropanoic acid Chemical compound OC(=O)C(O)(C)P(O)(=O)C(C)(O)C(O)=O RBMHUYBJIYNRLY-UHFFFAOYSA-N 0.000 description 1
- KSILMCDYDAKOJD-UHFFFAOYSA-N 2-aminoisoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(N)C(=O)C2=C1 KSILMCDYDAKOJD-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229930182843 D-Lactic acid Natural products 0.000 description 1
- JVTAAEKCZFNVCJ-UWTATZPHSA-N D-lactic acid Chemical compound C[C@@H](O)C(O)=O JVTAAEKCZFNVCJ-UWTATZPHSA-N 0.000 description 1
- ORLQHILJRHBSAY-UHFFFAOYSA-N [1-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1(CO)CCCCC1 ORLQHILJRHBSAY-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- -1 cadmium phenylmalonate Chemical compound 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229940022769 d- lactic acid Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000012802 nanoclay Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229960005190 phenylalanine Drugs 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001434 poly(D-lactide) Polymers 0.000 description 1
- 229920001432 poly(L-lactide) Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- UQDJGEHQDNVPGU-UHFFFAOYSA-N serine phosphoethanolamine Chemical compound [NH3+]CCOP([O-])(=O)OCC([NH3+])C([O-])=O UQDJGEHQDNVPGU-UHFFFAOYSA-N 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0083—Nucleating agents promoting the crystallisation of the polymer matrix
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/11—Esters; Ether-esters of acyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
Definitions
- the present invention relates to a polylactide resin composition with excellent crystallinity and a method for producing the same.
- Polylactide (or polylactic acid; PLA) resin is manufactured based on bio-based materials, and is an eco-friendly material that emits less carbon dioxide, a global warming gas, during the manufacturing process and has the characteristic of being decomposed at a specific temperature and in composting facilities. am. In addition, it has recently been attracting attention as one of the materials that can replace existing crude oil-based resins as a response to waste plastic use and carbon emission regulations.
- polylactide resin has the advantage of being cheaper than other biodegradable polymers and having high tensile strength and modulus characteristics.
- polylactide resin has a rigid polymer main chain repeated in short units, has a slow crystallization rate due to slow chain mobility, has a long molding cycle, and thus has a problem of low productivity. Therefore, in order to improve these problems, much research is being conducted to improve productivity and heat resistance by introducing substances such as nucleating agents.
- the material used as the nucleating agent is mainly an inorganic nucleating agent, and materials such as talc, mica, and nanoclay are used, and some of them can be added during PLA molding to improve heat resistance and strength. It has been reported that it can be done. However, if these nucleating agents are added in excessive amounts, there is a problem of increased resin specific gravity and decreased transparency. Meanwhile, organic nucleating agents such as LAK 301 (aromatic sulfonate drivate), sodium benzoate, N-aminophthalimide, phthalhydrazide, and cadmium phenylmalonate are used as substances to improve crystallinity and transparency. However, these materials are not bio-based and have dispersion issues with PLA resin.
- LAK 301 aromatic sulfonate drivate
- sodium benzoate sodium benzoate
- N-aminophthalimide N-aminophthalimide
- phthalhydrazide phthalhydrazide
- the present invention is intended to provide a polylactide resin composition with excellent crystallinity by using a combination of specific nucleating agents.
- the present invention relates to a method for producing the polylactide resin composition.
- the present invention provides the following polylactide resin composition:
- the first nucleating agent is uracil or orotic acid
- the second nucleating agent is a compound containing a lactide oligomer structure
- polylactide resin used in the present invention is defined to encompass a homopolymer or copolymer containing the following repeating units.
- the polylactide resin may be manufactured by including the step of forming the repeating unit by ring-opening polymerization of a lactide monomer, and the polymer after the ring-opening polymerization and the forming process of the repeating unit are completed is called the “polylactide resin.” It can be referred to as ".
- lactide monomer can be defined as follows. Typically, lactide can be divided into L-lactide made of L-lactic acid, D-lactide made of D-lactic acid, and mesolactide made of one L-form and one D-form. Additionally, a 50:50 mix of L-lactide and D-lactide is called D,L-lactide or rac-lactide. Among these lactides, it is known that if polymerization is performed using only L-lactide or D-lactide with high optical purity, L- or D-polylactide (PLLA or PDLA) with very high stereoregularity can be obtained.
- PLLA or PDLA L- or D-polylactide
- Lactide is known to have a faster crystallization rate and higher crystallization rate than polylactide, which has low optical purity.
- lactide monomer is defined to include all forms of lactide, regardless of differences in the characteristics of each form of lactide and the characteristics of the polylactide resin formed therefrom.
- the polylactide resin according to the present invention has, for example, a weight average molecular weight of 70,000 to 400,000.
- the present invention is characterized by improving the crystallinity of the polylactide resin by using the first and second nucleating agents together in the polylactide resin.
- the first nucleating agent is uracil or orotic acid.
- the first nucleating agent is a bio-based organic material that can be added to polylactide resin to act as a nucleation site and increase the crystallization rate by causing crystal nucleation at a high temperature.
- the first nucleating agent is included in an amount of 0.1 to 5% by weight based on the total weight of the polylactide resin composition. If the content is less than 0.1% by weight, the effect of using the first nucleating agent is insignificant, and if the content exceeds 5% by weight, there is a risk of impairing the inherent physical properties of the polylactide resin. More preferably, the first nucleating agent is 0.2% by weight or more, 0.3% by weight, 0.4% by weight, or 0.5% by weight or more relative to the total weight of the polylactide resin composition; 4.5 weight percent or less, 4.0 weight percent or less, or 3.5 weight percent or less.
- the second nucleating agent is a nucleating agent containing an oligomeric structure of lactide monomer. Due to the oligomeric structure of the lactide monomer, it has high compatibility with polylactide resin and is added to polylactide resin to play a role similar to a plasticizer. Accordingly, the degree of crystallinity can be increased by forming a free volume within the polylactide resin and improving the chain mobility of the polylactide resin.
- the second nucleating agent is a compound represented by the following formula (1):
- L is any one selected from the group consisting of:
- n1 is an integer from 1 to 4,
- n2 is an integer from 1 to 4,
- n3 is an integer from 1 to 30,
- R is a substituent represented by the following formula (2),
- n the number of repeat units
- R' is hydrogen or acetyl
- the weight average molecular weight of the second nucleating agent can be adjusted depending on the number of each lactide repeating unit.
- the weight average molecular weight of the second nucleating agent is 1,000 to 50,000. More preferably, the weight average molecular weight of the second nucleating agent is 1,100 or more, 1,200 or more, 1,300 or more, 1,400 or more, or 1,500 or more; It is 40,000 or less, 30,000 or less, 20,000 or less, 10,000 or less, 9,000 or less, or 8,000 or less.
- the second nucleating agent is included in an amount of 3 to 25% by weight based on the total weight of the polylactide resin composition. If the content is less than 3% by weight, the effect of using the second nucleating agent is insignificant, and if the content exceeds 25% by weight, there is a risk of impairing the inherent physical properties of the polylactide resin. More preferably, the second nucleating agent is 3.5 wt% or more, 4.0 wt% or more, or 4.5 wt% or more based on the total weight of the polylactide resin composition; It is included in not more than 24% by weight, not more than 23% by weight, not more than 22% by weight, or not more than 21% by weight.
- the method for producing the polaractide resin composition according to the present invention described above is not particularly limited as long as it is a method of mixing the polylactide resin described above, the first nucleating agent, and the second nucleating agent.
- each of the above components is well soluble in CHCl 3 solvent, it can be prepared by dissolving each component in each CHCl 3 solvent, mixing them, and then removing the solvent.
- the polaractide resin composition according to the present invention described above has excellent crystallinity and excellent dispersibility between each component, so it also has excellent transparency. Therefore, the polaractide resin composition according to the present invention has excellent processability and can maintain the inherent properties of the polaractide resin according to the present invention.
- Figure 1 shows the NMR results of the second nucleating agent prepared in Preparation Example 1.
- Figures 2 to 5 show DSC measurement results for polylactide resin compositions prepared in Examples and Comparative Examples.
- An oligomer was prepared using PEG-400 (P4) as an initiator. Specifically, add Lactide:P4 to a 20 mL vial for a total of 4.5 g at a molar ratio of 4:1, 8:1, 12:1, and 16:1, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named P4-O-001, P4-O-002, P4-O-003, and P4-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- An oligomer was prepared using PEG-400 (P4) as an initiator. Specifically, add Lactide:P4 to a 20 mL vial for a total of 4.5 g at a molar ratio of 4:1, 8:1, 12:1, and 16:1, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After adjusting the temperature to 120°C, acetic anhydride (4 equivalents compared to the terminal OH group) was added, and the reaction proceeded for an additional 12 hours.
- P4 PEG-400
- An oligomer was prepared using PEG-1000 (P10) as an initiator. Specifically, add Lactide:P10 at a molar ratio of 4:1, 8:1, 12:1, and 16:1 to a 20 mL vial for a total of 4.5 g, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named P10-O-001, P10-O-002, P10-O-003, and P10-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- An oligomer was prepared using PEG-1000 (P10) as an initiator. Specifically, add Lactide:P10 at a molar ratio of 4:1, 8:1, 12:1, and 16:1 to a 20 mL vial for a total of 4.5 g, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After adjusting the temperature to 120°C, acetic anhydride (4 equivalents compared to the terminal OH group) was added, and the reaction proceeded for an additional 12 hours.
- PEG-1000 P10
- the oligomer was prepared using cyclohexanedimethanol (CD) as an initiator. Specifically, add Lactide:CD at a molar ratio of 4:1, 8:1, 12:1, and 16:1 to a 20 mL vial for a total of 4.5 g, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named CD-O-001, CD-O-002, CD-O-003, and CD-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- An oligomer was prepared using 1,5-pentanediol (PD) as an initiator. Specifically, add Lactide:PD to a 20 mL vial for a total of 4.5 g at a molar ratio of 4:1, 8:1, 12:1, and 16:1, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named PD-O-001, PD-O-002, PD-O-003, and PD-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- PD 1,5-pentanediol
- the oligomer was prepared using diethylene glycol (DG) as an initiator. Specifically, add Lactide:DG to a 20 mL vial for a total of 4.5 g at a molar ratio of 4:1, 8:1, 12:1, and 16:1, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named DG-O-001, DG-O-002, DG-O-003, and DG-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- DG diethylene glycol
- An oligomer was prepared using glycerol (GL) as an initiator. Specifically, add Lactide:GL at a molar ratio of 6:1, 12:1, and 18:1 (molar ratio) to a 20 mL vial for a total of 4.5 g, and add 0.1 to 0.2 wt% of Sn(Oct) 2 catalyst. After adding as much as possible, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named GL-O-001, GL-O-002, and GL-O-003, respectively, and the weight average molecular weights are shown in Tables 1 and 2 below.
- An oligomer was prepared using pentaerythritol (PT) as an initiator. Specifically, add Lactide:PT at a molar ratio of 8:1, 16:1, 24:1, and 32:1 to a 20 mL vial for a total of 4.5 g, and add 0.1 to 0.1 to 0.1 Sn(Oct) 2 catalyst. After adding it to 0.2 wt%, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named PT-O-001, PT-O-002, PT-O-003, and PT-O-004, respectively, and the weight average molecular weight is shown in Table 1 below. and 2.
- PT pentaerythritol
- An oligomer was prepared using sorbitol (SB) as an initiator. Specifically, add Lactide:SB to a 20 mL vial for a total of 4.5 g at a molar ratio of 12:1, 24:1, and 36:1 (molar ratio), and add 0.1 to 0.2 wt% of Sn(Oct) 2 catalyst. After adding as much as possible, it was reacted at 130°C for 4 hours. After vacuum drying and cooling to room temperature, a second nucleating agent was prepared, which was named SB-O-001, SB-O-002, and SB-O-003, respectively, and the weight average molecular weights are shown in Tables 1 and 2 below.
- SB sorbitol
- PLA pellet 4032D from NatureWorks; weight average molecular weight approximately 200,000
- CHCl 3 12 mL of CHCl 3 was added to completely dissolve it.
- the first and second nucleating agents shown in Table 1 below were dissolved or evenly dispersed in 4 mL of CHCl 3 depending on their respective contents to prepare a solution, and then mixed with the PLA solution prepared previously.
- the solution mixed evenly by sonication for 1 hour was naturally dried on an Al dish (diameter: 80 mm) to remove the solvent, and then dried in vacuum at 60°C for 5 hours to form a PLA film (thickness: about 0.5 mm to 1.0 mm). were prepared respectively.
- the physical properties of the first nucleating agent, second nucleating agent, and PLA film prepared above were measured by the following method.
- Mn number average molecular weight
- Mw weight average molecular weight
- Mw/Mn oligomer molecular weight distribution
- D-SB D-Sorbitol
- PT penentaerythritol
- OA Orotic acid
- L-PA L-phenylalanine
- PH phthalhydrazide
- Example 1 Uracil One CD-O-001 1,200 10 112.3 5.1 50.3 101.9 165.2 5.7
- Example 2 Uracil One PD-O-001 1,200 10 111.2 5.1 48.4 99.0 164.5 9.7
- Example 3 Uracil One PD-O-001 1,200 20 102.8 30.5 31.4 83.2 153.6 39.3
- Example 4 Uracil One DG-O-001 1,200 10 112.6 5.7 50.2 101.2 164.6 6.8
- Example 5 Uracil One DG-O-001 1,200 20 99.6 20.2 36.0 88.9 154.4 22.1
- Example 6 Uracil One P4-O-001 1,600 10 115.1 12.3 44.9 92.0 165.4 19.6
- Example 7 Uracil One P4-O-001 1,
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Abstract
Description
항목 | 제1 핵제 | 제2 핵제 | DSC(냉각) | DSC(2차 승온) | |||||||
종류 | wt% | 종류 | Mw | wt% | Tc(oC) | Xc(%) | Tg(oC) | Tcc(oC) | Tm(oC) | Xc(%) | |
실시예 1 | Uracil | 1 | CD-O-001 | 1,200 | 10 | 112.3 | 5.1 | 50.3 | 101.9 | 165.2 | 5.7 |
실시예 2 | Uracil | 1 | PD-O-001 | 1,200 | 10 | 111.2 | 5.1 | 48.4 | 99.0 | 164.5 | 9.7 |
실시예 3 | Uracil | 1 | PD-O-001 | 1,200 | 20 | 102.8 | 30.5 | 31.4 | 83.2 | 153.6 | 39.3 |
실시예 4 | Uracil | 1 | DG-O-001 | 1,200 | 10 | 112.6 | 5.7 | 50.2 | 101.2 | 164.6 | 6.8 |
실시예 5 | Uracil | 1 | DG-O-001 | 1,200 | 20 | 99.6 | 20.2 | 36.0 | 88.9 | 154.4 | 22.1 |
실시예 6 | Uracil | 1 | P4-O-001 | 1,600 | 10 | 115.1 | 12.3 | 44.9 | 92.0 | 165.4 | 19.6 |
실시예 7 | Uracil | 1 | P4-O-001 | 1,600 | 20 | 102.0 | 34.0 | 37.0 | 77.5 | 162.9 | 54.6 |
실시예 8 | Uracil | 1 | P10-O-001 | 2,500 | 10 | 103.7 | 16.0 | 43.8 | 88.0 | 166.4 | 25.4 |
실시예 9 | Uracil | 1 | P10-O-001 | 2,500 | 20 | 103.7 | 38.6 | - | - | 164.3 | 52.6 |
실시예 10 | OA | 1 | CD-O-001 | 1,200 | 10 | 100.8 | 4.9 | 52.7 | 109.0 | 166.8 | 8.2 |
실시예 11 | OA | 1 | PD-O-001 | 1,200 | 10 | 101.4 | 16.0 | 50.7 | 104.7 | 166.9 | 27.2 |
실시예 12 | OA | 1 | DG-O-001 | 1,200 | 10 | 102.2 | 13.9 | 47.0 | 101.0 | 165.7 | 23.2 |
실시예 13 | OA | 1 | P4-O-001 | 1,600 | 10 | 100.7 | 22.9 | 45.9 | 95.6 | 166.4 | 39.0 |
실시예 14 | OA | 1 | P10-O-001 | 2,500 | 10 | 96.9 | 24.2 | 42.4 | 87.3 | 166.9 | 41.4 |
실시예 15 | Uracil | 3 | P4-A-001 | 1,600 | 10 | 112.2 | 20.2 | 46.0 | 98.4 | 165.7 | 25.7 |
실시예 16 | OA | 3 | P4-A-001 | 1,600 | 10 | 98.3 | 11.4 | 47.0 | 100.6 | 167.0 | 17.4 |
실시예 17 | Uracil | 3 | P4-A-002 | 5,100 | 10 | 112.3 | 19.1 | 55.0 | 109.2 | 167.4 | 25.0 |
실시예 18 | OA | 3 | P4-A-002 | 5,100 | 10 | 103.4 | 7.2 | 55.3 | 110.1 | 168.2 | 11.2 |
실시예 19 | Uracil | 3 | P4-A-003 | 800 | 10 | 105.6 | 43.4 | - | - | 157.3 | 52.4 |
실시예 20 | OA | 3 | P4-A-003 | 800 | 10 | 107.7 | 45.0 | - | - | 158.1 | 52.4 |
실시예 21 | Uracil | 3 | P4-A-004 | 1,000 | 10 | 111.6 | 37.9 | - | - | 162.2 | 47.9 |
실시예 22 | OA | 3 | P4-A-004 | 1,000 | 10 | 96.7 | 38.3 | - | - | 159.5 | 46.4 |
실시예 23 | Uracil | 3 | P10-A-001 | 2,500 | 5 | 115.0 | 44.5 | - | - | 162.8 | 51.9 |
실시예 24 | Uracil | 1 | P10-A-001 | 2,500 | 10 | 109.8 | 47.3 | - | - | 160.6 | 55.1 |
실시예 25 | OA | 1 | P10-A-001 | 2,500 | 10 | 95.0 | 39.2 | - | - | 160.1 | 54.4 |
실시예 26 | Uracil | 3 | P10-A-001 | 2,500 | 10 | 117.8 | 27.5 | 43.3 | 92.6 | 166.7 | 37.8 |
실시예 27 | OA | 3 | P10-A-001 | 2,500 | 10 | 98.6 | 21.7 | 43.7 | 94.3 | 167.5 | 35.3 |
실시예 28 | Uracil | 3 | P10-A-002 | 6,000 | 10 | 116.1 | 27.2 | 52.2 | 106.2 | 167.3 | 35.2 |
실시예 29 | OA | 3 | P10-A-002 | 6,000 | 10 | 100.7 | 12.2 | 53.2 | 105.7 | 168.2 | 18.3 |
실시예 30 | Uracil | 3 | P10-A-003 | 1,800 | 10 | 106.2 | 45.5 | - | - | 157.7 | 53.3 |
실시예 31 | OA | 3 | P10-A-003 | 1,800 | 10 | 112.5 | 48.6 | - | - | 159.9 | 56.8 |
실시예 32 | Uracil | 3 | P10-A-004 | 2,000 | 10 | 104.3 | 44.8 | - | - | 157.5 | 54.3 |
실시예 33 | OA | 3 | P10-A-004 | 2,000 | 10 | 100.2 | 42.9 | - | - | 159.2 | 54.6 |
항목 | 제1 핵제 | 제2 핵제 | DSC(냉각) | DSC(2차 승온) | |||||||
종류 | wt% | 종류 | Mw | wt% | Tc(oC) | Xc(%) | Tg(oC) | Tcc(oC) | Tm(oC) | Xc(%) | |
비교예 1 | - | - | - | - | - | 95.1 | 0.2 | 60.1 | 124.1 | 165.4 | 3.4 |
비교예 2 | Talc | 3 | - | - | - | 98.7 | 3.7 | 59.3 | 118.6 | 165.9 | 7.6 |
비교예 3 | Talc | 10 | - | - | - | 101.7 | 12.3 | 59.3 | 110.0 | 166.5 | 19.1 |
비교예 4 | D-SB | 3 | - | - | - | 92.4 | 0.6 | 57.3 | 116.8 | 163.5 | 1.7 |
비교예 5 | PT | 3 | - | - | - | 91.8 | 0.4 | 57.5 | 116.1 | 166.8 | 0.3 |
비교예 6 | Uracil | 3 | - | - | - | 111.7 | 11.5 | 59.8 | 123.2 | 165.9 | 15.1 |
비교예 7 | OA | 3 | - | - | - | 109.8 | 3.0 | 59.9 | 127.0 | 166.6 | 4.5 |
비교예 8 | L-PA | 3 | - | - | - | 92.9 | 1.1 | 59.0 | 122.3 | 165.5 | 4.4 |
비교예 9 | PH | 3 | - | - | - | 102.8 | 2.7 | 58.3 | 113.9 | 164.2 | 5.7 |
비교예 10 | - | - | GL-O-001 | 1,700 | 10 | 90.5 | 0.8 | 54.4 | 119.1 | 166.8 | 2.0 |
비교예 11 | - | - | GL-O-002 | 3,800 | 10 | 91.4 | 0.8 | 55.9 | 118.4 | 167.5 | 1.9 |
비교예 12 | - | - | GL-O-003 | 5,400 | 10 | 91.1 | 0.5 | 56.9 | 123.1 | 168.1 | 1.6 |
비교예 13 | - | - | PT-O-001 | 2,100 | 20 | 83.5 | 2.3 | 42.9 | 98.5 | 157.8 | 3.5 |
비교예 14 | - | - | SB-O-001 | 2,800 | 20 | 86.4 | 0.2 | 47.4 | 107.1 | 159.5 | 0.7 |
비교예 15 | - | - | CD-O-001 | 1,200 | 20 | 85.3 | 2.6 | 38.7 | 89.7 | 155.6 | 3.9 |
비교예 16 | - | - | PD-O-001 | 1,200 | 20 | 87.3 | 5.4 | 35.0 | 83.6 | 154.5 | 13.9 |
비교예 17 | - | - | DG-O-001 | 1,200 | 20 | 87.4 | 3.1 | 39.5 | 90.3 | 154.8 | 9.3 |
비교예 18 | - | - | P4-O-001 | 1,600 | 20 | 82.7 | 16.9 | 32.0 | 79.4 | 162.9 | 31.9 |
비교예 19 | - | - | P10-O-001 | 2,500 | 20 | 85.7 | 30.7 | - | - | 164.6 | 52.3 |
비교예 20 | - | - | P4-A-001 | 1,600 | 10 | - | - | 47.5 | 100.5 | 166.0 | 0.8 |
비교예 21 | - | - | P4-A-002 | 5,100 | 10 | - | - | 55.5 | 111.1 | 167.7 | 0.3 |
비교예 22 | - | - | P10-A-001 | 2,500 | 10 | 88.8 | 3.0 | 42.9 | 93.2 | 1666.8 | 4.1 |
비교예 23 | - | - | P10-A-002 | 6,000 | 10 | - | - | 52.7 | 106.2 | 167.8 | 0.2 |
비교예 24 | Talc | 1 | GL-O-001 | 1,700 | 10 | 91.8 | 11.3 | 52.0 | 101.8 | 163.1 | 18.4 |
비교예 25 | Talc | 1 | PT-O-001 | 2,100 | 10 | 91.6 | 9.8 | 50.6 | 101.4 | 159.5 | 15.3 |
비교예 26 | Talc | 1 | SB-O-001 | 2,800 | 10 | 90.1 | 1.0 | 49.2 | 107.1 | 152.0 | 2.4 |
비교예 27 | Talc | 1 | CD-O-001 | 1,200 | 10 | 88.9 | 12.9 | 48.7 | 99.6 | 159.5 | 21.3 |
비교예 28 | Talc | 1 | PD-O-001 | 1,200 | 10 | 89.5 | 20.6 | 44.4 | 93.7 | 160.7 | 34.5 |
비교예 29 | Talc | 1 | DG-O-001 | 1,200 | 10 | 90.2 | 15.9 | 47.4 | 97.0 | 162.4 | 28.1 |
비교예 30 | Talc | 1 | P4-O-001 | 1,600 | 10 | 100.3 | 37.5 | 41.8 | - | 164.8 | 48.8 |
비교예 31 | Talc | 1 | P10-O-001 | 2,500 | 10 | 94.3 | 29.1 | - | - | 164.9 | 43.2 |
Claims (8)
- 폴리락타이드 수지; 제1 핵제; 및 제2 핵제를 포함하고,상기 제1 핵제는 유라실(uracil) 또는 오르트산(orotic acid)이고,상기 제2 핵제는 락타이드 올리고머 구조를 포함하는 화합물인,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 폴리락타이드 수지의 중량평균분자량이 70,000 내지 400,000인,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 제1 핵제는 상기 폴리락타이드 수지 조성물 총 중량 대비 0.1 내지 5 중량%로 포함하는,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 제1 핵제는 상기 폴리락타이드 수지 조성물 총 중량 대비 0.5 내지 3.5 중량%로 포함하는,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 제2 핵제의 중량평균분자량은 1,000 내지 50,000인,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 제2 핵제는 상기 폴리락타이드 수지 조성물 총 중량 대비 3 내지 25 중량%로 포함하는,폴라락타이드 수지 조성물.
- 제1항에 있어서,상기 제2 핵제는 상기 폴리락타이드 수지 조성물 총 중량 대비 4.5 내지 21 중량%로 포함하는,폴라락타이드 수지 조성물.
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JP2016011388A (ja) * | 2014-06-30 | 2016-01-21 | 株式会社リコー | ポリ乳酸樹脂組成物、及び成形体 |
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JP2011080048A (ja) * | 2009-09-10 | 2011-04-21 | National Institute Of Advanced Industrial Science & Technology | ポリ乳酸樹脂組成物 |
JP2016011388A (ja) * | 2014-06-30 | 2016-01-21 | 株式会社リコー | ポリ乳酸樹脂組成物、及び成形体 |
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BIAN, X. ET AL.: "S ynthesis of multi-arm poly (L-lactide) and its modification on linear polylactide", POLYMER BULLETIN, vol. 74, 2017, pages 245 - 262, XP036126097, DOI: 10.1007/s00289-016-1713-4 * |
QIU ZHAOBIN, LI ZHISHENG: "Effect of orotic acid on the crystallization kinetics and morphology of biodegradable poly (L-lactide) as an efficient nucleating agent", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY, vol. 50, no. 21, 2 November 2011 (2011-11-02), pages 12299 - 12303, XP093095504, ISSN: 0888-5885, DOI: 10.1021/ie2019596 * |
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