Polymer Degradation and Stability最新文献_第2页

Eco-Frameworks for a Cleaner Planet: Harnessing Next-Gen MOFs for Pollution and Plastic Waste Remediation

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-29 DOI: 10.1016/j.polymdegradstab.2025.111349

Rainie Cherian, C.J. Binish, Vijayasankar A V

Plastic waste pollution causes significant environmental challenges, contributing to environmental deterioration and severe impact on human health. Addressing this issue, Metal-Organic Framework (MOF) has appeared as a dynamic and eco-friendly material used for the degradation of plastics and organic pollutants. MOFs exhibit exceptional structural properties like high surface area, porosity that are being widely used in catalytic and adsorption-based applications. This review explores the advancement in MOF and their use as catalysts for the degradation of polymers from the early 2010s. It highlights the innovative upcycling of PET waste into MOFs, promoting a circular economy while mitigating ecological concerns. Moreover, the review also reinforces the degradation mechanism, challenges and limitation of MOFs, including their stability, recyclability, and cost-efficiency in extensive scale application. Combining MOFs into aerogels or employing post-synthetic modification are some ways to enhance their durability and performance. Advanced techniques, such as computational simulations and AI-based design, are being developed to revolutionize MOF optimization for different applications. It also emphasizes their potential to tackle plastic pollution and facilitate eco-innovations in environmental remediation and polymer recycling.

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引用次数: 0

Insights into the effect of segment rearrangement induced by dynamic disulfide bond on UV aging resistance of UV-induced self-compensated epoxy crosslinked network

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-29 DOI: 10.1016/j.polymdegradstab.2025.111352

Mingli Wang , Ziyu Liu , Tiancheng Wang , Jiahao Ma , Jue Cheng , Xiaoqing Liu , Junying Zhang

The deterioration of epoxy resin properties caused by UV radiation is a major bottleneck in the epoxy resin applications development. And, its mechanism is UV-induced chemical bond breaking and the stress concentration resulting from the structural changes in the crosslinked network. However, the strategy to improve UV aging resistance have always been unsatisfactory, as the integrity of the chemical bond has been overemphasized and the failure caused by the stress concentration has been neglected. Herein, an epoxy crosslinked network containing two photosensitive groups, anthracene and disulfide, was prepared. Among them, anthracene can absorb UVA wavelength light and proceed [4 + 4] cycloaddition reaction, so as to compensate for the damage of chemical crosslinked structure; thanks to the chain segment rapid relaxation during annealing, the dynamic disulfide bonds can not only absorb and shield UV light, but also greatly avoid the stress concentration. After 600 h (actual UV exposure time 400 h) simulated UV aging (340 nm, 0.76 W·m^-2), the tensile strength and fracture toughness decreased by only -2.6 % and -18.9 %, which showed excellent performance retention after UV aging, compared with the control sample. This study will provide important guidance for the structure and formulation design of UV-resistant aging resins.

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引用次数: 0

Electrochemical Degradation Strategies for Polystyrene Microplastic: Current Trends and Future Prospects

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-29 DOI: 10.1016/j.polymdegradstab.2025.111351

Gokul Gangadharan P , Anand Bharti , Abhijit Mondal

Polystyrene (PS) microplastic (MP) pollution is a major environmental issue due to its extensive use, persistence, toxicity and resistance to degradation. In aquatic ecosystems, PS-MP disrupt biodiversity, accumulate in marine organisms, and transport toxic pollutants, ultimately entering the food chain and posing serious ecological and health risks. Conventional removal methods, including filtration, flotation, coagulation, adsorption, and bioremediation, often struggle with inefficiencies, high costs, and secondary pollution. Likewise, degradation techniques such as biodegradation, photocatalysis, and thermal or chemical treatments face challenges related to effectiveness, prolonged treatment durations, and sustainability. Electro-oxidation (EO) has emerged as an efficient and advanced approach for PS-MP breakdown, leveraging reactive oxygen species (ROS) to achieve high removal rates with minimal environmental impact. This review explores recent progress in electrochemical degradation, emphasizing reactor design, electrode materials, operating conditions, mass transfer, mixing strategies, and temperature control. Additionally, degradation pathways and economic feasibility are critically examined. This study systematically evaluates EO performance, with removal efficiencies ranging from 28% to 90% over treatment durations of 3 to 72 hours. PS-MP sizes between 0.1 and 149 µm and concentrations from 10 to 2000 mg/L were assessed. Notably, the BDD anode with 0.03 M Na₂SO₄ as the electrolyte demonstrated superior efficiency, reinforcing its effectiveness in MP degradation. Key challenges and future research directions are discussed to improve EO's practical application. By addressing existing gaps and limitations, this review contributes to the development of sustainable solutions for mitigating PS-MP pollution and safeguarding aquatic ecosystems.

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引用次数: 0

Depolymerization/functionalization of silicones in mild conditions: A “Back-to-polymers” strategy to turn wastes into up-cycled polymers

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-29 DOI: 10.1016/j.polymdegradstab.2025.111343

Antoine Forens , Aurélie Boulègue-Mondière , Fabien Dupin , Nicolas Durand , Daniel Portinha , Etienne Fleury

Silicones based on polydimethylsiloxanes are widely-spread materials owing to their exceptional mechanical, thermal and chemical properties and biocompatibility, among other characteristics. As for any other man-made plastics, recycling silicone-based materials appears essential to transition to a more sustainable production model, lowering the amount of waste that is then turned into valuable building blocks. While conventional processes of chemical recycling of silicones generally describe the recovery of cyclic organosiloxane monomers, herein we introduce an efficient and robust method that produces polymers instead with limited amount of produced cycles (<2 wt%). It relies on reactions carried out at room temperature that use 4-dodecylbenzene sulfonic acid combined with dialkysiloxanes as chain transfer agents. When starting from a polydimethylsiloxane oil, linear polymer chains are obtained with molecular weight lower than the one of the initial substrates, that can be tuned by both the acid and dialkysiloxane contents. A variety of end-cappers (molecular, oligomeric or polymeric; non-functionalized or functionalized with Si-vinyl or Si-H groups) were successfully used, and a mechanism in agreement with the experimental results is suggested. Our method not only applied on silicone oils but also on filler-free crosslinked polymers and some manufactured silicone elastomers. It is shown that when functionalized with either Si-vinyl or Si-H groups, the so-called “recycled” polymers can act as reactive precursors for the preparation of novel silicone elastomer by hydrosilylation reaction. An example of an elastomer made from 100 % recycled silicones is presented. Therefore, our approach represents a robust way to obtain reactive silicone precursors by “upgrading” initially inert oils or by “upcycling” products originally intended to scrap, and in this sense can contribute to enriching circular models for silicone materials.

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引用次数: 0

To improve the flame retardancy, mechanical properties, and water resistance of PC/ABS alloy by a polydimethylsiloxane

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-28 DOI: 10.1016/j.polymdegradstab.2025.111347

Yujie Kang , Yangming Zou , Xinqi Di, Jing Yang, Jun Sun, Hongfei Li, Xiaoyu Gu, Sheng Zhang

PC/ABS alloy is widely used because of its excellent impact strength, size stability, and easy processability. However, it is a dilemma to simultaneously maintain good flame retardancy and mechanical performance. In this work, a combined filler system composed of hydroquinone bis(diphenyl phosphate) (HDP) and polydimethylsiloxane (PDMS) is used to cope with this trouble. By use of 8 wt. %HDP/4 wt. % PDMS in PC/ABS (80/20), the sample achieves a UL-94 V-0 rating and a limiting oxygen index (LOI) of 26.0 %, and the flame retardancy is mostly kept even after water immersion, ascribed to the good hydrophobicity of PDMS. The synergistic flame retardancy action of HDP/ PDMS should be their promotion on charring, that is quantificationally documented from the residue left in the TGA test. The impact strength of the PC/ABS sample containing 8 wt. %HDP/4 wt. % PDMS is 18.8 KJ/m², about 4 times higher than the impact strength of PC/ABS/12 wt. % HDP. After soaking in water for 7 days, the impact strength drops to 8.8 KJ/m² and 1.2 KJ/m², respectively. Comparatively, the severe loss on impact strength by using HDP is mitigated by partial substitution by PDMS, even after soaking in water. This work tries to find feasible solutions referring to flame retardancy and mechanical performance in PC/ABS alloy.

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引用次数: 0

Switchable ion-induced (bio)degradation of a novel polylactic acid composite including microfibrillated cellulose and calcium alginate

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-28 DOI: 10.1016/j.polymdegradstab.2025.111350

Patricia Wolf, Julian Helberg, Cordt Zollfrank

Polylactic acid (PLA) is a bio-based and potentially biodegradable polymer. However, the degradation of this polyester in the natural environment is rather poor. An improvement in its biodegradation behavior is crucial for common and future applications of PLA. In our study, we present biocomposites based on PLA, microfibrillated cellulose (MFC), and calcium alginate. PLA acts as a matrix polymer, the MFC accounts for mechanical reinforcement, and the calcium alginate represents a trigger for initializing biodegradation of the composite under specific conditions (switch). With this composite, a biodegradation test in soil and a weathering test was performed. The composites show a decrease in tensile strength compared to pure PLA. In the presence of monovalent cations like Na⁺ or K⁺ (trigger), the additive calcium alginate forms a hydrogel, what causes fracturing of the composite from the inside out due to volume expansion. The increased water uptake of the alginate hydrogel improves the accessibility of the sample for the microbiome. In soil, the ion-induced effect was initiated by the addition of a PBS buffer, and an increased microbial activity (CO₂ formation) was observed. During weather exposure, the monovalent cations contained in rainwater led to alginate swelling and increased the PLA chains' hydrolysis. For the PLA-MFC-Alginate composites, a decrease of

\overline{M_{w}}

from initially 2.26 × 10⁵ g mol^-1 to 8.50 × 10⁴ g mol^-1 was detected. Meanwhile, neat PLA showed no environmental degradation at all under these conditions. The improved hydrolysis caused by expanded alginate may be a promising first step towards enhanced (bio)degradation of PLA.

聚乳酸（PLA）是一种生物基聚合物，具有生物降解的潜力。然而，这种聚酯在自然环境中的降解能力很差。改善其生物降解性能对于聚乳酸的常见应用和未来应用至关重要。在我们的研究中，我们提出了基于聚乳酸、微纤维素（MFC）和海藻酸钙的生物复合材料。聚乳酸作为基质聚合物，MFC 起到机械增强的作用，而海藻酸钙则是在特定条件下启动复合材料生物降解的触发器（开关）。对这种复合材料进行了土壤中的生物降解试验和风化试验。与纯聚乳酸相比，复合材料的拉伸强度有所下降。在 Na+ 或 K+ 等单价阳离子（触发器）存在的情况下，添加剂海藻酸钙形成水凝胶，由于体积膨胀，导致复合材料从内向外断裂。海藻酸钙水凝胶的吸水性增加，从而提高了微生物群对样本的可及性。在土壤中，加入 PBS 缓冲液后，离子诱导效应开始产生，并观察到微生物活动增加（二氧化碳的形成）。在天气暴露期间，雨水中含有的单价阳离子导致海藻酸膨胀，并增加了聚乳酸链的水解。对于聚乳酸-MFC-海藻酸盐复合材料，检测到其 Mw‾ 从最初的 2.26 × 105 g mol-1 降至 8.50 × 104 g mol-1。与此同时，纯聚乳酸在这些条件下完全没有出现环境降解。膨胀海藻酸盐改善了水解作用，这可能是增强聚乳酸（生物）降解的第一步。

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引用次数: 0

Cyclotriphosphazene based epoxy vitrimer with excellent recyclability and flame retardancy

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-27 DOI: 10.1016/j.polymdegradstab.2025.111346

Daquan Wang , Zuoliang Zhang , Xin Xu , Yao Qiu , Gang Chang , Kaiyun Yuan , Ruqing Xu , Lingjie Meng

The widespread application of epoxy resins in thermosetting materials is limited by inadequate flame retardancy and recyclability. This study reports the synthesis of a bio-based, hexafunctional star-shaped epoxy cyclotriphosphazene (NEP) via nucleophilic substitution and oxidation of hexachlorocyclotriphosphazene and eugenol. An intrinsically flame-retardant epoxy vitrimer (EV/NEP) was subsequently prepared, exhibiting superior mechanical properties, heat resistance, and thermal stability. Incorporation of 9 mol % NEP significantly enhanced flame retardancy, increasing the limiting oxygen index (LOI) to 26.2 % while reducing peak heat release rate (PHRR) and total smoke release (TSR) by 24.9 % and 35.4 %, respectively. Flame retardancy mechanisms were elucidated in both solid and gas phases. Recyclability was confirmed through solvent recovery and thermal compression experiments. Dynamic ester bonds conferred excellent shape memory properties to EV/NEP. The combination of flame retardancy and recyclability makes this epoxy vitrimer a promising candidate for aerospace and automotive applications.

{"title":"Cyclotriphosphazene based epoxy vitrimer with excellent recyclability and flame retardancy","authors":"Daquan Wang , Zuoliang Zhang , Xin Xu , Yao Qiu , Gang Chang , Kaiyun Yuan , Ruqing Xu , Lingjie Meng","doi":"10.1016/j.polymdegradstab.2025.111346","DOIUrl":"10.1016/j.polymdegradstab.2025.111346","url":null,"abstract":"<div><div>The widespread application of epoxy resins in thermosetting materials is limited by inadequate flame retardancy and recyclability. This study reports the synthesis of a bio-based, hexafunctional star-shaped epoxy cyclotriphosphazene (NEP) via nucleophilic substitution and oxidation of hexachlorocyclotriphosphazene and eugenol. An intrinsically flame-retardant epoxy vitrimer (EV/NEP) was subsequently prepared, exhibiting superior mechanical properties, heat resistance, and thermal stability. Incorporation of 9 mol % NEP significantly enhanced flame retardancy, increasing the limiting oxygen index (LOI) to 26.2 % while reducing peak heat release rate (PHRR) and total smoke release (TSR) by 24.9 % and 35.4 %, respectively. Flame retardancy mechanisms were elucidated in both solid and gas phases. Recyclability was confirmed through solvent recovery and thermal compression experiments. Dynamic ester bonds conferred excellent shape memory properties to EV/NEP. The combination of flame retardancy and recyclability makes this epoxy vitrimer a promising candidate for aerospace and automotive applications.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"238 ","pages":"Article 111346"},"PeriodicalIF":6.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of crosslinkers based on octa vinyl polyhedral oligomeric silsesquioxane and their flame retardant applications in silicone rubber

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-26 DOI: 10.1016/j.polymdegradstab.2025.111344

Zijian Zheng , Haibo Fan , Wenyuan Zhang , Liang Qiao , Fan Yang , Rongjie Yang , Wenchao Zhang

It is challenging to improve the flame retardancy and thermal stability of silicone rubber. An effective method was proposed here to solve this problem by incorporating crosslinker made of octa vinyl polyhedral oligomeric silsesquioxane (OV-POSS) into condensed room temperature curing silicone rubber (PDMS). Meanwhile, OV-POSS with different numbers of crosslinking groups were also applied to PDMS and effectively improved its flame retardancy and thermal stability. With the addition of 10 phr nC-POSS (an OV-POSS has an average of n participating click response groups, including 2,4,6,8C-POSS), silicone rubber (SR-nCPOSS) passed the V-0 rating in the vertical combustion test (UL-94) with a high limiting oxygen index (LOI) value of 31–32 %. Moreover, compared with silicone rubber (SR) using tetraethyl orthosilicate, the peak heat release rate was reduced by 46 % and the initial decomposition temperature under nitrogen was increased from 460 °C to 568 °C. In addition, the possible flame-retardant mechanism of nC-POSS, the flame-retardant and catalytic charring effects and free radical quenching effects of PDMS multi-crosslinked networks, were further revealed. The multi-crosslinked network formed by nC-POSS could inhibit the main chain decomposition caused by the terminal hydroxyl group at low temperatures and promote the crosslinking charring of SR, which effectively increased the service temperature of silicone rubber. Moreover, nC-POSS inhibited thermal degradation of SR in the condensed phase and quenches reactive radicals in the gas phase by generating rigid core radicals and phenyl radicals. Our results provide a simple new method for the fabrication of silicone rubber with excellent thermal stability and flame retardancy.

{"title":"Synthesis of crosslinkers based on octa vinyl polyhedral oligomeric silsesquioxane and their flame retardant applications in silicone rubber","authors":"Zijian Zheng , Haibo Fan , Wenyuan Zhang , Liang Qiao , Fan Yang , Rongjie Yang , Wenchao Zhang","doi":"10.1016/j.polymdegradstab.2025.111344","DOIUrl":"10.1016/j.polymdegradstab.2025.111344","url":null,"abstract":"<div><div>It is challenging to improve the flame retardancy and thermal stability of silicone rubber. An effective method was proposed here to solve this problem by incorporating crosslinker made of octa vinyl polyhedral oligomeric silsesquioxane (OV-POSS) into condensed room temperature curing silicone rubber (PDMS). Meanwhile, OV-POSS with different numbers of crosslinking groups were also applied to PDMS and effectively improved its flame retardancy and thermal stability. With the addition of 10 phr nC-POSS (an OV-POSS has an average of n participating click response groups, including 2,4,6,8C-POSS), silicone rubber (SR-nCPOSS) passed the V-0 rating in the vertical combustion test (UL-94) with a high limiting oxygen index (LOI) value of 31–32 %. Moreover, compared with silicone rubber (SR) using tetraethyl orthosilicate, the peak heat release rate was reduced by 46 % and the initial decomposition temperature under nitrogen was increased from 460 °C to 568 °C. In addition, the possible flame-retardant mechanism of nC-POSS, the flame-retardant and catalytic charring effects and free radical quenching effects of PDMS multi-crosslinked networks, were further revealed. The multi-crosslinked network formed by nC-POSS could inhibit the main chain decomposition caused by the terminal hydroxyl group at low temperatures and promote the crosslinking charring of SR, which effectively increased the service temperature of silicone rubber. Moreover, nC-POSS inhibited thermal degradation of SR in the condensed phase and quenches reactive radicals in the gas phase by generating rigid core radicals and phenyl radicals. Our results provide a simple new method for the fabrication of silicone rubber with excellent thermal stability and flame retardancy.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"238 ","pages":"Article 111344"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review of ceramizable EPDM composites: Current status and future perspectives

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-26 DOI: 10.1016/j.polymdegradstab.2025.111345

Xu Du , Fuping Li , Feng Qin , Jiabao Chu , Wei Dang , Xu Hu , Xinyuan Zhang , Kang Zhao , Yufei Tang

Ceramizable EPDM composites have great applications in the fields of aerospace, automotive, power and energy industry due to their low density, high filling capacity, and exceptional aging and heat resistance. Additionally, ceramizable EPDM composites can form stable ceramic phases at elevated temperature and thus possess superior ablation resistance in comparison with traditional EPDM composites. This paper endeavors to summarize the current status and future perspectives of ceramizable EPDM composites, including the ceramization methods, mechanical properties, thermal insulation and ablation resistance. Currently, ceramization methods for EPDM composites mainly consist of the addition of reinforcing fillers and graft modification. The characteristics of different reinforcing fillers such as granular fillers, fiber fillers and carbon nanofillers are discussed, focusing on the preparation process and filler/EPDM compatibility. In addition, the mechanical properties, thermal insulation and ablation resistance achieved by different ceramization methods together with the strengthening and ablative mechanism are analytically compared and discussed. Tensile strength reinforced by granular fillers is lower than that of fiber fillers due to their poor compatibility, while carbon nanomaterials endow EPDM composites with better ablation resistance but poor thermal insulation because of the permeable networks. Graft modification can improve the mechanical properties and thermal insulation, but it is limited by the lower ceramic yield. The recorded data and proposed analysis would provide fundamental guidance for the design and development of novel ceramizable EPDM composites.

{"title":"A review of ceramizable EPDM composites: Current status and future perspectives","authors":"Xu Du , Fuping Li , Feng Qin , Jiabao Chu , Wei Dang , Xu Hu , Xinyuan Zhang , Kang Zhao , Yufei Tang","doi":"10.1016/j.polymdegradstab.2025.111345","DOIUrl":"10.1016/j.polymdegradstab.2025.111345","url":null,"abstract":"<div><div>Ceramizable EPDM composites have great applications in the fields of aerospace, automotive, power and energy industry due to their low density, high filling capacity, and exceptional aging and heat resistance. Additionally, ceramizable EPDM composites can form stable ceramic phases at elevated temperature and thus possess superior ablation resistance in comparison with traditional EPDM composites. This paper endeavors to summarize the current status and future perspectives of ceramizable EPDM composites, including the ceramization methods, mechanical properties, thermal insulation and ablation resistance. Currently, ceramization methods for EPDM composites mainly consist of the addition of reinforcing fillers and graft modification. The characteristics of different reinforcing fillers such as granular fillers, fiber fillers and carbon nanofillers are discussed, focusing on the preparation process and filler/EPDM compatibility. In addition, the mechanical properties, thermal insulation and ablation resistance achieved by different ceramization methods together with the strengthening and ablative mechanism are analytically compared and discussed. Tensile strength reinforced by granular fillers is lower than that of fiber fillers due to their poor compatibility, while carbon nanomaterials endow EPDM composites with better ablation resistance but poor thermal insulation because of the permeable networks. Graft modification can improve the mechanical properties and thermal insulation, but it is limited by the lower ceramic yield. The recorded data and proposed analysis would provide fundamental guidance for the design and development of novel ceramizable EPDM composites.</div></div>","PeriodicalId":406,"journal":{"name":"Polymer Degradation and Stability","volume":"238 ","pages":"Article 111345"},"PeriodicalIF":6.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enzymatic depolymerization of polyamides (nylons): current challenges and future directions

IF 6.3 2区化学 Q1 POLYMER SCIENCE

Polymer Degradation and Stability

Pub Date : 2025-03-25 DOI: 10.1016/j.polymdegradstab.2025.111341

Shengwei Sun

Environmental accumulation of polyamide (nylon) waste is a pressing global issue. Microbial enzyme-mediated biodegradation serves as the most attractive and eco-friendly approach for the sustainable management of end-of-life nylons. However, it is hampered by inefficient degradation rates and a limited knowledge of potential enzymes and mechanisms. Given its significance, this review aims to provide a comprehensive overview of the advancements in enzymatic nylon depolymerization, their mechanisms, their challenges, and their opportunities. The review can then inform protein engineering and enhance the discovery of novel nylon-degrading enzymes.

引用次数: 0