Macromolecular Symposia最新文献_第2页

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.70018

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Innovative Digital Marketing Strategies for Promoting Polymer Courses in Private Higher Education Institutions 推广私立高等教育机构高分子课程的创新数字营销策略

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.70010

Rajiv Gupta, Hari Shankar Shyam, Vidushi Nain, M.Z.A. Yahya, Pramod K Singh

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Toward a Sustainable Development: Role of Sustainable Raw Material in Apparel Industry 实现可持续发展：可持续原材料在服装业中的作用

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.70008

Nishtha Ujjawal, Manisha Gupta, Babita Tripathi, M. Z. A. Yahya, Pramod K Singh, Shagun Sharma, Hari Shankar Shyam

{"title":"Toward a Sustainable Development: Role of Sustainable Raw Material in Apparel Industry","authors":"Nishtha Ujjawal, Manisha Gupta, Babita Tripathi, M. Z. A. Yahya, Pramod K Singh, Shagun Sharma, Hari Shankar Shyam","doi":"10.1002/masy.70008","DOIUrl":"https://doi.org/10.1002/masy.70008","url":null,"abstract":"The sustainable development goals (SDGs) of the 2030 agenda are a collection of global, social, and environmental objectives with an emphasis on improving the quality of education and promoting ethical and ecologically responsible industrial practices. Due to the large volumes of carbon dioxide it produces, the significant water it requires, and the release of potentially hazardous chemicals into the air, the apparel business has a tremendous influence on the environment. Customers nowadays are well-informed about the dangers of pollution and the need of eco-friendly clothes and laundry practices; as a result, the firm would benefit greatly from catering to this market. Interest in sustainable fashion, eco-fashion, and ethical fashion is increasing among designers. It is impossible to conserve fashion without an understanding of the production process, consumer habits, and the materials used to make clothing (including garment purchasing, care, and disposal). Although this concept of sustainable fashion has the potential to affect both cutting-edge design and the latest trend, it is challenging to implement due to the rapid growth of the garment industry and the numerous challenges that must be overcome. Human rights abuses, the exploitation of child labor, and discrimination against employees, as well as severe environmental repercussions such water pollution, the emission of dangerous chemicals, the build-up of garbage, and the loss of rainforests, are all attributable to the garment business.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831215","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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Evaluation of Chitosan and 1,8-Dihydroxyanthraquinone Schiff Base as a Fluorescent Sensor for Transition-Metal Ions 壳聚糖和1,8-二羟基蒽醌希夫碱作为过渡金属离子荧光传感器的研究

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400186

Madhvi Garg, Kamal Sharma, Alkka Benny, Dhiraj Sud

{"title":"Evaluation of Chitosan and 1,8-Dihydroxyanthraquinone Schiff Base as a Fluorescent Sensor for Transition-Metal Ions","authors":"Madhvi Garg, Kamal Sharma, Alkka Benny, Dhiraj Sud","doi":"10.1002/masy.202400186","DOIUrl":"https://doi.org/10.1002/masy.202400186","url":null,"abstract":"The current research aims to demonstrate the potential of C-DHQ fluorophore synthesized from biopolymer chitosan and 1,8-dihydroxyanthraquinone through Schiff base reaction as a sensor for detection of metal ions through fluorescence technique. The condensation reaction between the amine group of chitosan and the carbonyl group of 1,8-dihydroxyanthraquinone results in the formation of an imine linkage that facilitates the covalent bonding of the anthraquinone derivative to the chitosan backbone. The synthesis of the Schiff base of chitosan is confirmed by employing techniques such as FTIR, TGA, scanning electron microscope, EDX, PXRD, absorption, and fluorescence spectroscopy analysis. The meticulous investigation of elemental quantification and surface morphology provides substantial evidence of the structural alterations for C-DHQ. The prominent peaks in UV–visible spectra of C-DHQ are at 222, 253, and 430 nm, corresponding to various electronic transitions such as n–π* and conjugated π–π*. The fluorescence spectra show emission maxima at 567 nm, which is further used to check the sensing efficiency of C-DHQ toward different metal ions and anions. The fluorescence analysis results demonstrate that among various transition metals studies in response investigation, Fe3+ metal ions can quench C-DHQ's fluorescence. Applying the fluorometric approach at different concentrations reveal that C-DHQ has a good selectivity, even at ppm level. The study also assesses the impact of varying the pH range of the Fe3+ ion solution on the fluorescence intensity of C-DHQ to optimize the condition for facile detection. Moreover, no interference for other metal ions is found for C-DHQ, supporting Fe3+ ions as fluoroprobe.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831076","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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Thermoelectric Properties of Al–ZnO Oxide Thin Film Al-ZnO氧化薄膜的热电性能

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400130

Nidhi Yaduvanshi, Satyendra Pratap Singh, S. Gaurav, S. Shankar, Vishal Singh Chandel

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Solid Biopolymer Electrolytes Based on Cellulose Acetate and Ionic Liquid 1-Hexyl-3-methylimidazolium Iodide for Sustainable Electrochemical Devices 基于醋酸纤维素和离子液体1-己基-3-甲基咪唑碘的固体生物聚合物电解质用于可持续电化学装置

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400272

Sushant Kumar, Neelam Rawat, Manoj K. Singh, M. Z. A. Yahya, Pramod K. Singh

{"title":"Solid Biopolymer Electrolytes Based on Cellulose Acetate and Ionic Liquid 1-Hexyl-3-methylimidazolium Iodide for Sustainable Electrochemical Devices","authors":"Sushant Kumar, Neelam Rawat, Manoj K. Singh, M. Z. A. Yahya, Pramod K. Singh","doi":"10.1002/masy.202400272","DOIUrl":"https://doi.org/10.1002/masy.202400272","url":null,"abstract":"The objective of this research is to synthesize and thoroughly investigate polymer electrolyte films for energy applications by blending biopolymer cellulose acetate (CA) with ionic liquid 1-hexyl-3-methylimidazolium iodide (HMIMI). Polymeric films based on biopolymer cellulose acetate are produced by blending various amounts of ionic liquid (HMIMI) using the solution cast method. The structural, electrical, and dielectric properties of the synthesized films are evaluated using various characterization techniques, including XRD, FTIR, electrochemical impedance spectroscopy, linear sweep voltammetry, and Wagner polarization method. The film containing 1.8 g of HMIMI exhibits a peak conductivity of 5.60 × 10−4 S cm−1 and an electrochemical stability range of 3.3 V. In addition, the dielectric characteristics of the CA–HMIMI polymeric films are investigated, including the dielectric constant (κ) and the variation of the real and imaginary components of the dielectric constant with frequency.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831230","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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Macromol. Symp. 414-2 絮凝。计算机协会,414 - 2

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.70017

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Novel Synthesis and Ultrasonic Investigation of Al2O3–Xanthan Gum Nanofluid al2o3 -黄原胶纳米流体的合成及超声研究

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400267

A. Mathana Gopal, P. Padmavathi, Krishna Kumar Pandey, J. Poongodi

{"title":"Novel Synthesis and Ultrasonic Investigation of Al2O3–Xanthan Gum Nanofluid","authors":"A. Mathana Gopal, P. Padmavathi, Krishna Kumar Pandey, J. Poongodi","doi":"10.1002/masy.202400267","DOIUrl":"https://doi.org/10.1002/masy.202400267","url":null,"abstract":"The acoustical qualities of nanofluid molecules are affected by their liquid cohesive properties, which can differ significantly depending on the circumstances. The extracellular polymer xanthan gum is mostly produced by the bacteria Xanthomonas campestris. Its pseudoplastic properties and thermal stability have led to its typical addition to water-based drilling fluids. It is also widely utilized as a thickening and emulsion stabilizer in industrial applications. An innovative method for creating nanofluids is to use ultrasonic technology to convert biopolymer base fluids into nanoparticles. This study uses gelatin as the foundation fluid and various weight percentages to assess the density and ultrasonic velocity of synthesized nanoparticles. The aluminum oxide (Al2O3) nanofluids are produced by the study team by ultrasonically transforming a precursor in aqueous xanthan gum. The XRD and FESEM methods are used to characterize the synthesized nanoparticles. After ultrasonication, the findings of ultrasonic velocity, density, and viscosity measurements are analyzed. The stability of nanofluids is investigated using a theoretical framework and experimental data. The outcomes of previous studies and ultrasonic spectroscopy bear striking similarities.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831290","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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Optimizing Acrylonitrile Grafting onto Rayon Fibers to Enhance Its Application Characteristics 优化丙烯腈在人造丝上的接枝以增强其应用特性

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400204

Abhinav Kumar, Vaibhav Kataria, Prachi Singhal, Aditi Sangal, Sunita Rattan

{"title":"Optimizing Acrylonitrile Grafting onto Rayon Fibers to Enhance Its Application Characteristics","authors":"Abhinav Kumar, Vaibhav Kataria, Prachi Singhal, Aditi Sangal, Sunita Rattan","doi":"10.1002/masy.202400204","DOIUrl":"https://doi.org/10.1002/masy.202400204","url":null,"abstract":"Rayon is a regenerated cellulosic fiber, extensively being used in biomedical applications in the form of fabrics and surgical dressings. As a surgical dressing material, rayon exhibits advantages including light in weight, swelling ability, retaining absorbency on storage, does not shed fibers on the surface of the wound while cleaning the wound etc. However, conventional rayon-based dressing materials exhibit restricted swelling capacity that need to be enhanced for better absorption of wound exudates and rapid wound healing. Further, the mechanical properties and anti-bacterial properties must be worked upon as moisture absorption hampers these properties. To overcome these challenges, the structure of rayon fibers can be tailored through functionalization to increase its swelling capacity and to widen their application such as for full thickness skin wound applications. In the present study, rayon fibers are grafted with acrylonitrile (AN) to provide Ry─g─AN (Rayon─grafted─acrylonitrile). The grafting is carried out under microwave radiation catalyzed by cerium ions. The structure and morphology of the prepared fibers are characterized by SEM, FTIR, and XRD. The grafting conditions are systematically studied, optimizing factors, including concentrations of initiator and AN, temperature, solvent etc. with respect to the variations in grafting percentage. Maximum grafting obtained is 178% with 4 ml of monomer concentration, 0.5 ml initiator concentration, 30 ml of solvent, and 3 min. of microwave radiation exposure. Acrylonitrile is one of the versatile monomers that can impart mechanical strength, antimicrobial properties, along with reactive nitrile groups that could assist in further chemical treatment and drug loading to the dressing material.","PeriodicalId":18107,"journal":{"name":"Macromolecular Symposia","volume":"414 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143831077","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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Synthesis and Characterization of Poly{(benzo [1,2-d:4,5-d’]-bisthiazole-2,6-diyl)-1,4-cyclohexane} 聚{（苯并[1,2-d:4,5-d ']-双噻唑-2,6-二基）-1,4-环己烷}的合成与表征

Macromolecular Symposia Pub Date : 2025-04-14 DOI: 10.1002/masy.202400142

Roli Verma, Kirti Srivastava, R. S. Jagadish, Palak Sharma

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