Advances in Polymer Technology最新文献_第4页

Synthesis and Antibacterial Activity of Grafted Poly(Vinyl Chloride) Polymer against Gram-Positive and Gram-Negative Bacteria 接枝聚氯乙烯聚合物的合成及其对革兰氏阳性菌和革兰氏阴性菌的抗菌活性

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2024-01-17 DOI: 10.1155/2024/9941516

Shrajan Kotian, Sonali Gupta, Yashoda Malgar Puttaiahgowda, Sanmit Shetty

{"title":"Synthesis and Antibacterial Activity of Grafted Poly(Vinyl Chloride) Polymer against Gram-Positive and Gram-Negative Bacteria","authors":"Shrajan Kotian, Sonali Gupta, Yashoda Malgar Puttaiahgowda, Sanmit Shetty","doi":"10.1155/2024/9941516","DOIUrl":"10.1155/2024/9941516","url":null,"abstract":"Infectious diseases caused by microorganisms have gained worldwide attention in recent years. According to data compiled by the World Health Organization, the number of deaths resulting from infectious diseases is on the rise. In light of these dangers, the study of antibacterial materials has become increasingly vital. In this research, an antibacterial polymer was developed using poly(vinyl chloride) (PVC) and 4,4-diamminodiphenylmethane (DDM). The produced polymer’s chemical structure and thermal properties were investigated using Fourier-transform infrared spectroscopy, nuclear magnetic resonance, and thermo-gravimetric analysis. The antibacterial activity of the resulting PVC-g-DDM polymer was effective in killing both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. The antimicrobial efficacy was tested using a spread plate method, demonstrating its potential utility in a variety of applications like biomedical, coatings, water purification systems, and others. Antimicrobial resistance is increasing, especially among bacteria that have acquired resistance to multiple therapeutics. To fully optimize and explore the polymer’s potential and its usage, more research is needed.","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/9941516","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139481282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Design, Fabrication, and Characterization of 3D-Printed Multiphase Scaffolds Based on Triply Periodic Minimal Surfaces 基于三重周期极小表面的三维打印多相支架的设计、制造和表征

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2024-01-04 DOI: 10.1155/2024/4616496

Josette Vigil, Kailey Lewis, Nicholas Norris, Alp Karakoç, Timothy A. Becker

{"title":"Design, Fabrication, and Characterization of 3D-Printed Multiphase Scaffolds Based on Triply Periodic Minimal Surfaces","authors":"Josette Vigil, Kailey Lewis, Nicholas Norris, Alp Karakoç, Timothy A. Becker","doi":"10.1155/2024/4616496","DOIUrl":"10.1155/2024/4616496","url":null,"abstract":"The present work investigates the influence of material phases and their volume fractions on the elastic behavior of triply periodic minimal surface (TPMS) scaffolds for the potential modeling of bone scaffolds. A graphical tool using TPMS functions, namely Schwarz-D (diamond), gyroid, and modified gyroid, was developed and used to design and additively manufacture 3D multiphase scaffold models. A PolyJet, UV-cured 3D-printer system was used to fabricate the various TPMS scaffold models using three polymer materials with high, medium, and low stiffness properties. All TPMS models had the same volume fractions of the three polymer materials. Final models were printed into cylinders with a diameter of 20 mm and a height of 8 mm for mechanical testing. The models were subjected to compressive and shear testing using a dynamic mechanical analysis rheometer. All samples were tested at physiologically relevant temperature (37°C) to provide detailed structural characterizations. Microscopic imaging of 3D-printed scaffold longitudinal and cross sections revealed that additive manufacturing adequately recreated the TPMS functions, which created anisotropic materials with variable structures in the longitudinal and transverse directions. Mechanical testing showed that all three TPMS 3D-printed scaffold types exhibited significantly different shear and compressive properties (verifying anisotropic properties) despite being constructed of the same volume fractions of the three UV-printed polymer materials. The gyroid and diamond scaffolds demonstrated complex moduli values that ranged from 1.2 to 1.8 times greater than the modified gyroid scaffolds in both shear and compression. Control scaffolds printed from 100% of each of the three polymers had statistically similar mechanical properties, verifying isotropic properties.","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/2024/4616496","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139094529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Measurement Techniques and Methods for the Pressure Coefficient of Viscosity of Polymer Melts 聚合物熔体粘度压力系数的测量技术和方法

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-12-18 DOI: 10.1155/2023/2020247

Yang Liao, Yeyuan Hu, Yunxiang Tan, Kosuke Ikeda, Ryoji Okabe, Ruifen Wu, Ryota Ozaki, Qingyan Xu

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Characterization of Viscoelastic Properties Considering the Nonrelaxation for Filled Rubber 考虑到填充橡胶的非松弛性的粘弹特性表征

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-12-16 DOI: 10.1155/2023/1604326

Xinyi Lin, Mengxi Huang, Yang Wang, Ziran Li

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Self-Healing Polymers Designed for Underwater Applications 专为水下应用设计的自愈合聚合物

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-12-09 DOI: 10.1155/2023/6614326

Bambang Afrinaldi, Frita Yuliati, Hermawan Judawisastra, Lia A. T. W. Asri

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Preparation and Property Study of PA56/POE-g-MAH-GMA/PPO Ternary Alloy PA56/POE-g-MAH-GMA/PPO三元合金的制备及性能研究

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-12-05 DOI: 10.1155/2023/3114639

Yunsheng Chong, Liyan Wang, Xiangming Xu, Xiao Zhuang, Rongrong Zheng, Di Cao, Yanming Chen

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Precipitation of Polypropylene and Polyethylene Terephthalate Powders Using Green Solvents via Temperature and Antisolvent-Induced Phase Separation 用绿色溶剂通过温度和抗溶剂诱导相分离沉淀聚丙烯和聚对苯二甲酸酯粉末

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-11-30 DOI: 10.1155/2023/7651796

Benedikt Hanschmann

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Influence of Guluronic and Mannuronic Groups in Sodium Alginate Blends with Silk Fibroin: Phase Equilibrium and Thermodynamic Modeling 海藻酸钠与丝素共混物中古鲁醛基和甘露醛基的影响:相平衡和热力学模型

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-11-28 DOI: 10.1155/2023/4986453

Laise Maia Lopes, Mariana Agostini de Moraes, Marisa Masumi Beppu

{"title":"Influence of Guluronic and Mannuronic Groups in Sodium Alginate Blends with Silk Fibroin: Phase Equilibrium and Thermodynamic Modeling","authors":"Laise Maia Lopes, Mariana Agostini de Moraes, Marisa Masumi Beppu","doi":"10.1155/2023/4986453","DOIUrl":"https://doi.org/10.1155/2023/4986453","url":null,"abstract":"Silk fibroin (SF) and sodium alginate (SA) are natural polymers with interesting properties to produce biomaterials. Blends of these polymers form a complex protein–polysaccharide system where phase separation can be observed. Therefore, the thermodynamic analysis of this system is important to understand the interaction between the polymers and predict the final state and composition of the phases found in these blends. This study explored blends with a different initial composition of SF, SA, and water at 25°C and neutral pH. The influence of the proportion between mannuronic and guluronic acids on SA composition was investigated. After phase separation, two phases were identified, and the equilibrium data were fitted on three different thermodynamic models: Flory–Huggins, non-random two-liquids, and universal quasichemical. Cohn equation was also used to investigate the potential of SA to precipitate the SF in solution. The results show that the proportion of mannuronic and guluronic acids on the SA can significantly influence on equilibrium data and on the SF/SA interaction parameter, hence, becoming a variability factor if this parameter is not under control in formulations.","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138541419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Recent Progress in Stimuli-Responsive Hydrogels Application for Bone Regeneration 刺激反应性水凝胶在骨再生中的应用进展

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-11-27 DOI: 10.1155/2023/2934169

Hamza Abu Owida, Feras Alnaimat

{"title":"Recent Progress in Stimuli-Responsive Hydrogels Application for Bone Regeneration","authors":"Hamza Abu Owida, Feras Alnaimat","doi":"10.1155/2023/2934169","DOIUrl":"https://doi.org/10.1155/2023/2934169","url":null,"abstract":"Bone defects have recently surfaced as an important topic to discuss in orthopedic clinics, and as a result, they have captured the attention of the biomedical community as well as the general public. Because of their unique characteristics, such as high water content, softness, flexibility, and biocompatibility, hydrogels are gaining more and more traction in the field of tissue regeneration research within the medical industry. Intelligent biomaterials, like hydrogels, are much better than their predecessors because they can respond to new stimuli on multiple levels, such as the physical, chemical, and biological. Because they are sensitive to different outside cues, like shape in three dimensions and conditions between solid and liquid phases, they show certain traits. This indicates that they have the capability of developing into a more efficient material in the future, which would make them better suited to facilitate the localized repair of bone lesions. This article takes a look at hydrogels that alter their shape in response to the environment they are in. Some of the topics covered in this article include the classification of these materials, the concepts that underlie their synthesis, and the current state of research in this potentially fruitful field. This research was conducted with the intention of finding novel ways to treat severe bone defects.","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138541371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Polylactic Acid-Based Film Modified with Nano-Ag-Graphene-TiO2: New Film versus Recycled Film 纳米ag -石墨烯- tio2改性聚乳酸基薄膜:新膜与再生膜

IF 3.1 4区工程技术

Advances in Polymer Technology Pub Date : 2023-11-25 DOI: 10.1155/2023/9937270

Anca Peter, Camelia Nicula, Anca Mihaly Cozmuta, Goran Drazic, Antonio Peñas, Stefania Silvi, Leonard Mihaly Cozmuta

{"title":"Polylactic Acid-Based Film Modified with Nano-Ag-Graphene-TiO2: New Film versus Recycled Film","authors":"Anca Peter, Camelia Nicula, Anca Mihaly Cozmuta, Goran Drazic, Antonio Peñas, Stefania Silvi, Leonard Mihaly Cozmuta","doi":"10.1155/2023/9937270","DOIUrl":"https://doi.org/10.1155/2023/9937270","url":null,"abstract":"The increase in the polymer-based materials needs has induced along the waste accumulation, thus argued higher interest in recycling. The study aims to assess the structural, morphological, mechanical resistance, physical–chemical and biochemical characteristics, as well as the preservative role during the curd cheese storage of a recycled polylactic acid (PLA)-based film modified with Ag-graphene-TiO2 nanostructured composite, obtained by recovering the composite from the used film, followed by its incorporation in new PLA. The breaking load of the recycled film was 24% lower than that of the new film and 10% higher than of the neat PLA. Differential scanning calorimetry (DSC) showed changes of the recycled PLA’s surface tension and crystallization degree in a greater extent than in the newly prepared film, revealing better incorporation of the recovered composite into the PLA matrix. Fourier transformed infrared spectroscopy showed the formation of C–O–Ti bridges between composite and PLA both in new and recycled film. Oxygen transmission rate (OTR) of the new and recycled film decreased by 33% and 45%, respectively, in comparison with reference PLA. The curd cheese was successfully stored in the recycled packaging; the organoleptic characteristics of cheese wrapped in recycled film were superior in comparison with the new film. The variation of fat and protein contents and mass loss was the lowest when the recycled film was used as packaging material. The study successfully showed the possibility to recover and recycle the used PLA-based films modified with inorganic nanocomposites.","PeriodicalId":7372,"journal":{"name":"Advances in Polymer Technology","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138541378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0