Macromolecular Symposia最新文献_第6页

Macromol. Symp. 414

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.70003

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Chemical Treatment of Moringa Seed Peels for the Efficient Removal of Methylene Blue Macromolecule: Kinetic And Thermodynamic Calculations

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400223

Ibtisam Abdul Wahed Khalaf, Saddam Mohammed Al-Mahmoud

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Imprinted Effects on the Boric Acid Removal from Water by Molecularly Imprinted Polymer: Synthesis and Characterization

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300223

Nurjannah Salim, Kamrul Fakir Kamarudin, Nurlin Abu Samah

{"title":"Imprinted Effects on the Boric Acid Removal from Water by Molecularly Imprinted Polymer: Synthesis and Characterization","authors":"Nurjannah Salim, Kamrul Fakir Kamarudin, Nurlin Abu Samah","doi":"10.1002/masy.202300223","DOIUrl":"https://doi.org/10.1002/masy.202300223","url":null,"abstract":"In the present work, a study of boron removal from water using molecularly imprinted polymer-boric acid (MIP-BA) is conducted. This study is significant as it can be an addition for removing boric species, particularly in cases when carbon in tertiary treatment is ineffective. Kinetic study, saturation study and pH effect are among the parameters chosen to characterize the sorption characteristics of MIP-BA using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) detection. In the kinetic study in batch mode, boron is removed at an efficiency removal of 80.18% after 5 mins before stabilizing over 60 min. The adsorption process is deduced to be chemisorption in adsorption kinetic modelling studies. In the saturation study, the adsorption capacity of MIP-BA is increased. The adsorption isotherm study conveyed that there is a monolayer adsorption on homogenous surface of MIP-BA as Langmuir's model posted a R2 value of 0.9932 bettering 0.9832 posted by Freundlich's model. The optimal pH for boron removal is pH 8.7 (87.93%). The hydroxyl group readily forms covalent bonds with boron when reacted with boric acid in alkali medium. Non imprinted polymer (NIP) is effective at extracting boron from water, reducing the cost of cleaning the polymer with a Soxhlet equipment.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Bioactive Patches From Aloe Vera and Nata De Coco for Wound Dressing Applications

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300235

Siti Maznah binti Kabeb, Nurlin binti Abu Samah, Nurjannah binti Salim, Farah Hanani Zulkifli

{"title":"Development of Bioactive Patches From Aloe Vera and Nata De Coco for Wound Dressing Applications","authors":"Siti Maznah binti Kabeb, Nurlin binti Abu Samah, Nurjannah binti Salim, Farah Hanani Zulkifli","doi":"10.1002/masy.202300235","DOIUrl":"https://doi.org/10.1002/masy.202300235","url":null,"abstract":"This study focuses on the development and characterization of bioactive patches derived from Aloe Vera (AV) and Nata De Coco (NDC) for advanced wound dressing applications. Utilizing the solution casting method, biocomposite films are developed using polyvinyl alcohol (PVA) with varied bio-filler content (2%−10%) w/w. Fourier-transform infrared (FTIR) analysis confirms the miscibility and compatibility of PVA and bio-fillers via intermolecular hydrogen bonding. PVA/NDC10 demonstrates the highest water-holding capacity (WHC), exhibiting an increase from 157.17% (neat PVA) to 286.01%, resulting in an 82.0% enhancement. Conversely, increasing NDC content leads to a gradual decrease in tensile strength. Notably, the hybrid biocomposite film (PVA/AV/NDC) shows a significant 20.82% improvement in tensile strength, reaching 30.79 MPa. The study underscores the promise of AV and NDC bioactive patches for advanced wound dressing. Additionally, the hybrid approach shows synergistic improvements in water retention and mechanical strength, offering a comprehensive solution for effective wound management.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Intelligent Polymer Coatings: Enhancing Media Preservation through AI-Driven Techniques

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202300238

Priyanka Kumari, Shishir Kumar Singh, Ritu S. Sood, Sandeep Kumar, Rahul Dadhich, Rajesh Upadhyay, Rahul Kumar

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Title Page 414-1

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.70004

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The Effect of the Resistin, Interleukin-6 Macromolecules, and Tumor Necrosis Factor on Heart Disease

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400222

Muna Jumaah Hammad, Wasan Nazhan Hussein

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The Effect of the Presence of ILs on the Strength and Ionic Conductivity of Nafion Membrane

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400155

Ruwaida Asyikin Abu Talip, Wan Zaireen Nisa Yahya

{"title":"The Effect of the Presence of ILs on the Strength and Ionic Conductivity of Nafion Membrane","authors":"Ruwaida Asyikin Abu Talip, Wan Zaireen Nisa Yahya","doi":"10.1002/masy.202400155","DOIUrl":"https://doi.org/10.1002/masy.202400155","url":null,"abstract":"Proton exchange membrane, a key element of the proton exchange membrane fuel cell, with perfluorosulfonic acid (PFSA) membranes notably Nafion has been principally used as it provides high proton conductivity and high mechanical strength with good durability even at high pressure. Nonetheless, at high temperatures, the membrane suffers from conductivity problems due to dehydration, notably at high temperatures. Ionic liquids (ILs) which possess unique properties such as high electrochemical windows, high ionic conductivity, and high thermal stability have been the subject of interest in solving this problem. In this study, a protic ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMIMOTf) have been incorporated into the Nafion 117 through the solution casting and immersion method at different weight loading from 5–50 wt.% and tested their ionic conductivity, mechanical strength at different temperatures. It is found that at 20 wt.% loading the resulting composite membrane showed a high conductivity with considerable tensile strength. Furthermore, at different wt.% the incorporated ILs have improved the thermal stability of the membrane.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating a Blend of Amide-Based Polymer and Glycol as Methane Hydrate Inhibitor

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400169

Ankur Singh, Ajay Suri, K. Arunprasath, M. Z. A. Yahya, Lavish Singh

{"title":"Evaluating a Blend of Amide-Based Polymer and Glycol as Methane Hydrate Inhibitor","authors":"Ankur Singh, Ajay Suri, K. Arunprasath, M. Z. A. Yahya, Lavish Singh","doi":"10.1002/masy.202400169","DOIUrl":"https://doi.org/10.1002/masy.202400169","url":null,"abstract":"Pipelines often function in environments characterized by high pressure and low temperatures conditions conducive to hydrate formation. The occurrence of gas hydrate plugs can lead to pipeline blockages, resulting in significant economic losses and posing safety and environmental risks due to potential pipeline failures. In response, the industry is shifting toward low-dosage kinetic hydrate inhibitors (KHIs) requiring minimal quantities for effective hydrate inhibition. This study focuses on the synthesis and application of a cyclic amide-based polymer, polyvinyl caprolactam (PVCap), as a kinetic hydrate inhibition. This research also investigates the synergistic interaction between PVCap and monoethylene glycol (EG) where the hydrate inhibition performance of PVCap–EG blends is assessed. The experiments are done in a high pressure autoclave using constant cooling experimental procedure. The results demonstrate that increasing EG concentration in PVCap–EG blends lowers the equilibrium temperature (Teq), indicating effective hydrate inhibition. Moreover, the addition of EG reduces the hydrate growth rate to gas consumption rate ratio, showing its potential to mitigate hydrate formation.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Micro-Determination of the Macro-Drugs (Pseudoephedrine Hydrochloride-Ibuprofen) in their Pure Form and Pharmaceutical Preparations

Macromolecular Symposia Pub Date : 2025-02-17 DOI: 10.1002/masy.202400240

Asmaa Saeed Jabouri, Khalf Fares Attia

引用次数: 0