High-Performance Biodegradable PBAT/PPC Composite Film Through Reactive Compatibilizer

Gao, Fengxiang; Cai, Yuanqiang; Liu, Shunjie; Wang, Xianhong

doi:10.1007/s10118-023-2900-z

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…Poly(propylene carbonate) (PPC) is a biodegradable polymer that arises from the copolymerization of greenhouse gas CO2 and propylene oxide (PO). , The excellent biocompatibility properties of PPC can be attributed to its nontoxic, nonpolluting, and degradable nature. , As a result, PPC has found diverse applications in medicine delivery. , PPC is strongly hydrophobic and the establishment of hydrophilic and hydrophobic self-assembled nanoparticles greatly extends the drug delivery application of PPC. Chitosan-PPC-based nanoparticles have demonstrated exceptional antimicrobial performance, while self-assembling PPC nanoparticles have exhibited superior capability in delivering doxorubicin …”

Section: Introductionmentioning

confidence: 99%

“…Poly(propylene carbonate) (PPC) is a biodegradable polymer that arises from the copolymerization of greenhouse gas CO2 and propylene oxide (PO). 28 , 29 The excellent biocompatibility properties of PPC can be attributed to its nontoxic, nonpolluting, and degradable nature. 30 , 31 As a result, PPC has found diverse applications in medicine delivery.…”

Section: Introductionmentioning

confidence: 99%

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Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Xie,

Gao,

Liu

et al. 2024

ACS Omega

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The aim of the research was to develop novel gallic acid (GA)-modified amphiphilic nanoparticles of polyethylenimine (PEI)−polypropylene carbonate (PPC)−PEI (PEPE) and comprehensively assess its properties as an antiperiodontitis nanoparticle targeting the Toll-like receptor (TLR). The first step is to evaluate the binding potential of GA to the core trigger receptors TLR2 and TLR4/MD2 for periodontitis using molecular docking techniques. Following this, we conducted NMR, transmission electron microscopy, and dynamic light scattering analyses on the synthesized PEPE nanoparticles. As the final step, we investigated the synthetic results and in vitro antiperiodontitis properties of GA-PEPE nanoparticles. The investigation revealed that GA exhibits potential for targeted binding to TLR2 and the TLR4/MD2 complex. Furthermore, we successfully developed 91.19 nm positively charged PEPE nanoparticles. Spectroscopic analysis indicated the successful synthesis of GA-modified PEPE. Additionally, CCK8 results demonstrated that GA modification significantly reduced the biotoxicity of PEPE. The in vitro antiperiodontitis properties assessment illustrated that 6.25 μM of GA-PEPE nanoparticles significantly reduced the expression of pro-inflammatory factors TNF-α, IL-1β, and IL-6. The GA-PEPE nanoparticles, with their targeted TLR binding capabilities, were found to possess excellent biocompatibility and antiperiodontitis properties. GA-PEPE nanoparticles will provide highly innovative input into the development of anti-periodontitis nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Xie,

Gao,

Liu

et al. 2024

ACS Omega

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Section: ■ Introductionmentioning

confidence: 99%

“…The ring-opening copolymerization of carbon dioxide (CO 2 ) with epoxides to produce high value-added polymers has garnered significant attention due to its excellent atom economy and sustainability. , Catalysts hold a crucial role in this field owing to the high thermal stability of CO 2 . − However, during the development of CO 2 copolymerization catalysts, the aggregation phenomenon of the catalysts has been observed but has not been comprehensively studied. Initially, heterogeneous catalysts, , such as rare-earth ternary catalysts, double metallic cyanides, − and zinc glutarate, demonstrated high activity and selectivity due to multisite cooperativity on the surfaces. , However, the heterogeneous nature of these catalysts hinders mechanistic studies.…”

Section: Introductionmentioning

confidence: 99%

Aggregate Catalysts: Regulating Multimetal Cooperativity for CO₂/Epoxide Copolymerization

Yang,

Liu,

Zhou

et al. 2023

Macromolecules

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Biomimetic aggregates have flourished in various fields, particularly in small-molecule catalysis, but their application in polymer synthesis remains understudied. Herein, we propose a strategy for constructing aggregate catalysts based on aggregationregulating cooperativity to enhance the copolymerization of CO 2 / propylene oxide (PO). The key design strategy involves constructing polymeric aluminum porphyrin catalysts (PAPCs) with varied stacking modes induced by substituents' electronic effects, enabling effective modulation of metal synergism. PAPCs with −Cl and −Br substitution exhibit H-aggregates of porphyrin units, leading to a strong metal synergy effect and stability at high temperatures. The H-aggregate catalysts show high activity (TOF > 10,000 h −1 ) and high selectivity (>98%). Meanwhile, the activity was maintained at a very low catalyst loading ([Al]/PO = 1/ 100,000), with the number-average molecular weight of the resulting copolymer over 480 kg/mol. Contrarily, −CH 3 -and −CH 2 CH 3 -substituted PAPCs display J-aggregates with a weak metal synergy effect (unstable at a high temperature). The Jaggregate catalysts show low activity (TOF < 2500 h −1 ) and polymer selectivity (<90%). The present strategy of designing aggregate catalysts provides a new perspective to regulate metal cooperativity, suitable not only for CO 2 /epoxide or anhydride/epoxide copolymerization but also for lactone ring-opening polymerizations.

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Effect of Layered Double Hydroxide and Its Localization on the Structure and Properties of PBAT/PPC Composites

Jiang,

Wang,

Ren

2024

Macro Chemistry & Physics

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The blends of poly(butylene adipate‐co‐terephthalate) (PBAT), poly(propylene carbonate) (PPC), chain extender (ADR) and layered double hydroxides (LDH) are prepared by different extrusion methods. Effects of LDH and its distribution on rheology, phase morphology, mechanical properties, water vapor barrier properties and food preservation properties are investigated. Results show that when PBAT, PPC and LDH are mixed directly, LDH is preferentially distributed in the PBAT phase. When LDH are mixed with PPC firstly and then further with PBAT, LDH mostly migrates to the interface of PBAT and PPC. The epoxy groups of ADR react with the terminal groups of the polymers to improve the interfacial compatibility. Adding LDH, the mechanical properties and barrier properties of the materials are improved and by premixing of PPC and LDH, properties of composites are further improved. Compared with PBAT/PPC blends, the tensile strength and elongation at break of PBAT/PPC(LDH‐0.5)/ADR increased by 25.2% and 15.3%, respectively. The banana packaged in PBAT/PPC/LDH films maintains good freshness. It illustrates that PBAT/PPC(LDH)/ADR composites have a good application prospect in the field of barrier and food packaging based on their excellent mechanical, barrier and preservation properties.This article is protected by copyright. All rights reserved

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High-Performance Biodegradable PBAT/PPC Composite Film Through Reactive Compatibilizer

Cited by 4 publications

References 30 publications

Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Aggregate Catalysts: Regulating Multimetal Cooperativity for CO₂/Epoxide Copolymerization

Effect of Layered Double Hydroxide and Its Localization on the Structure and Properties of PBAT/PPC Composites

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High-Performance Biodegradable PBAT/PPC Composite Film Through Reactive Compatibilizer

Cited by 4 publications

References 30 publications

Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Gallic Acid-Modified Polyethylenimine–Polypropylene Carbonate–Polyethylenimine Nanoparticles: Synthesis, Characterization, and Anti-Periodontitis Evaluation

Aggregate Catalysts: Regulating Multimetal Cooperativity for CO2/Epoxide Copolymerization

Effect of Layered Double Hydroxide and Its Localization on the Structure and Properties of PBAT/PPC Composites

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Aggregate Catalysts: Regulating Multimetal Cooperativity for CO₂/Epoxide Copolymerization