Polymer Science, Series A最新文献_第5页

Hydrodynamic and Conformational Characteristics of Poly(N-vinyl succinimide) Macromolecules 聚（N-乙烯基琥珀酰亚胺）大分子的流体力学和构象特性

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-07-10 DOI: 10.1134/S0965545X2460039X

A. A. Gosteva, O. V. Okatova, A. S. Gubarev, A. I. Gostev, E. V. Sivtsov, G. M. Pavlov

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Cure, Mechanical, Swelling, Antimicrobial and Biodegradability Studies of Biocomposites of Acrylonitrile Butadiene Rubber and Chitosan 丙烯腈丁二烯橡胶和壳聚糖生物复合材料的固化、机械、膨胀、抗菌和生物降解性研究

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-07-10 DOI: 10.1134/S0965545X24600327

P. Nusrath, P. Sajna, K. T. Ramlath, C. Rajesh

{"title":"Cure, Mechanical, Swelling, Antimicrobial and Biodegradability Studies of Biocomposites of Acrylonitrile Butadiene Rubber and Chitosan","authors":"P. Nusrath, P. Sajna, K. T. Ramlath, C. Rajesh","doi":"10.1134/S0965545X24600327","DOIUrl":"10.1134/S0965545X24600327","url":null,"abstract":"Bio composites of acrylonitrile butadiene rubber (NBR) reinforced with chitosan were prepared using dicumyl peroxide (DCP) as a curing agent. Composites with two types of chitosan with different degrees of deacetylation (DD) were studied i.e., Chitosan with 85% DD and 75% DD. The cure characteristics of composites were studied. The mechanical properties of NBR were found to be improved by the incorporation of chitosan. The composite containing 20 phr chitosan has the best balance of mechanical properties. The swelling behavior of the composites in non-polar solvents such as petrol, diesel, kerosene, toluene, and hexane were analyzed for the swelling coefficient values which supports the results of mechanical properties. Antimicrobial properties of the composites were studied by inoculating the composites with Aspergillus niger (A. niger) fungus on a potato dextrose agar media and incubated for 60 days at room temperature. It is found that presence of chitosan resist the microbial action on the composite samples compared to the gum sample. It is believed that the outcome obtained from the present study is to develop environment-friendly composites for various applications such as oil seals, hoses, automobile bushes, etc.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"66 1","pages":"32 - 44"},"PeriodicalIF":1.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141570306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Distribution of Filler in Polymer Composites. Role of Particle Size and Concentration 聚合物复合材料中填料的分布。粒度和浓度的作用

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-07-10 DOI: 10.1134/S0965545X24600236

E. A. Pavlyuchkova, A. Ya. Malkin, Y. V. Kornev, I. D. Simonov-Emel’yanov

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Effect of Glycerol Content in Gelatin/Glycerol Composite Films Loaded with Erythromycin 载入红霉素的明胶/甘油复合薄膜中甘油含量的影响

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X23600357

Mitra Baghali, Hakimeh Ziyadi, Seeram Ramakrishna, Anna Chernova, Antonio Di Martino

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Fabrication of Dual-Functional Micelles Based on Star-Shaped Copolymer for Bioimaging 基于星形共聚物的生物成像双功能胶束的制备

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600169

Chaofan Liu, Shenglong Liao, Shuyin Zhong, Qingping Song, Jiangang Gao, Ying Lin

{"title":"Fabrication of Dual-Functional Micelles Based on Star-Shaped Copolymer for Bioimaging","authors":"Chaofan Liu, Shenglong Liao, Shuyin Zhong, Qingping Song, Jiangang Gao, Ying Lin","doi":"10.1134/S0965545X24600169","DOIUrl":"10.1134/S0965545X24600169","url":null,"abstract":"Dual-modal fluorescent/magnetic resonance imaging attracts more and more attentions in biomedical applications. Herein, star-shaped poly(ε-caprolactone)-b-poly(N-vinylpyrrolidone) amphiphilic copolymer with a tetrakis-(4-amino)-terminated tetraphenylethylene core was synthesized. Then, dual-functional nano micelles were achieved via a facile self-assembly of the star copolymer and in situ encapsulation of iron oxide nanoparticles. The fluorescent characteristic of the tetraphenylethylene moiety and encapsulation of iron oxide endowed the resultant dual-functional micelles with bright fluorescence and superparamagnetic properties, which indicated that the PCL segments coated on magnetic nanoparticles is effective at separating the conjugated core from iron oxide nanoparticles to minimize fluorescence quenching. The obtained micelles were found to have a good colloidal and fluorescent stability in different environment. In vitro studies revealed that these dual-functional micelles could serve as an effective fluorescent probe to achieve imaging of MCF-7 cells without obvious cytotoxicity. Thus, this work provides a facile strategy to fabricate fluorescent-magnetic dual-functional micelles for dual-modal imaging applications.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"692 - 701"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Effects of Graphene Oxide Dimension on the Mechanical and Dielectric Properties of Epoxy Resin 石墨烯氧化物尺寸对环氧树脂机械性能和介电性能的影响

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600066

Yi Zhang

{"title":"Effects of Graphene Oxide Dimension on the Mechanical and Dielectric Properties of Epoxy Resin","authors":"Yi Zhang","doi":"10.1134/S0965545X24600066","DOIUrl":"10.1134/S0965545X24600066","url":null,"abstract":"To study the effects of graphene oxide (GO) dimension on the mechanical and dielectric performance of epoxy resin (EP), two kinds of GO with different dimensions were selected and characterized by Fourier transform infrared spectrometer (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffractometry (XRD). The results showed that the two kinds of GO had similar chemical structure, but different average particle sizes of 190.1 nm (SGO) and 1510 nm (MGO), respectively. The mechanical properties, dynamic mechanical properties, and dielectric properties of the EP/GO composites are analyzed using electronic universal testing machine, Rockwell hardness tester, dynamic mechanical analysis (DMA) and broadband dielectric impedance relaxation spectrometer. Results revealed that the GO dimension plays important role in determining the dispersion of the filler in EP matrix, and further determines the mechanical properties and dielectric performance of the composites. EP/SGO with better dispersion of GO in the EP matrix exhibits better mechanical properties, higher glass transition temperature, higher dielectric constant. Related mechanism has been proposed.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"755 - 764"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Characterization of Nanocomposites Based on Poly(ε-caprolactone) Filled with Recycled Red Mill Scale 基于填充回收红磨鳞片的聚（ε-己内酯）纳米复合材料的表征

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X23600382

Leila Djahnit, Samira Maou, Saida Soualmi, Rachid Dellali, Mazouri Bennama, Khaled El-Miloudi

{"title":"Characterization of Nanocomposites Based on Poly(ε-caprolactone) Filled with Recycled Red Mill Scale","authors":"Leila Djahnit, Samira Maou, Saida Soualmi, Rachid Dellali, Mazouri Bennama, Khaled El-Miloudi","doi":"10.1134/S0965545X23600382","DOIUrl":"10.1134/S0965545X23600382","url":null,"abstract":"Biodegradable poly(ɛ-caprolactone) (PCL), which is used in bioengineering applications thanks to its mechanical and biodegradable properties, it used as a polymer matrix in this study. The nanocomposite of PCL reinforced with recycled red mill scale PCL/RS has been prepared via ultrasonic mixing by solution casting technique at different amounts of RS (1, 5, 10, and 20 wt %), while virgin PCL was also produced for comparison. The structural, thermal, mechanical, and optical behaviors of PCL/RS nanocomposite films have been investigated. Raman spectroscopy shows that small amounts of particles ≤10 wt % may act as nucleation sites for the growth of polymer crystallites; While large amounts of particles will destroy crystallization zones. Blue shifts in spectrum Raman might be caused by the electronic interactions associated with charge transfer between PCL and RS nanoparticles. The XRD results is in good agreement with the Raman results that the crystallinity of esters increases in PCL/RS 10 wt % film. The melting temperature Tm of the nanocomposites is in the order of PCL/RS 1 wt % (71.1°C) > PCL/RS 5 wt % (71°C) > PCL/RS 10 wt % (70.3°C). We note that it has a resemblance in the values established by DRX and DSC, the crystallinity rate increases with the increase in the filler content 45 < 47 < 69 < 74.5. The nanocomposite materials prepared have UV-protective properties. Tensile results increase with an slight increase in RS filler at 5 wt % is 2 MPa, in comparison with PCL/RS 10 wt % (~1 MPa this result yields flexibility of the film and indicates good dispersion of RS in nanocomposite, resulting better interfacial adhesion.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"778 - 793"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Investigation on Structural, Electrical and Dielectric Properties of Polyaniline/ZrO2 Composite 聚苯胺/氧化锆复合材料的结构、电气和介电特性研究

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X2460025X

Jayadev Pattar, I. S. Ashwini, M. Nagaraja, S. Sarvesha Chandra, R. Sreekanth, K. Mahendra, S. R. Manohara

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Development of Bacterial Cellulose-Hyaluronic Acid Multicomponent Hydrogels via Click Chemistry for Biomedical Applications 通过点击化学技术开发细菌纤维素-透明质酸多组分水凝胶，用于生物医学应用

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X23600564

Şeyma Turan Okulmuş, Burcu Oktay, Dilek Kazan, Nilhan Kayaman Apohan

{"title":"Development of Bacterial Cellulose-Hyaluronic Acid Multicomponent Hydrogels via Click Chemistry for Biomedical Applications","authors":"Şeyma Turan Okulmuş, Burcu Oktay, Dilek Kazan, Nilhan Kayaman Apohan","doi":"10.1134/S0965545X23600564","DOIUrl":"10.1134/S0965545X23600564","url":null,"abstract":"The cross-linking of bacterial cellulose (BC), hydroxypropyl methylcellulose (HPMC), and hyaluronic acid (HA) accomplished with the Copper (I) catalyzed azide-alkyne cycloaddition (CuAAC) click reaction was investigated to obtain the multicomponent hydrogels that allow selective control of material properties. Click chemistry is one of many design methodologies that can be used to create hydrogels for multi-component systems. BC, HPMC, and HA are the most preferred and suitable natural polymers for tissue engineering studies. However, in order to combine their properties in a synergistic way, they must be functionalized to interact with each other. In this study, azide-functional HA was achieved by the reaction of hyaluronic acid with 1-azido-2,3-epoxypropane. To obtain multicomponent hydrogel alkyne-terminated cellulose is also prepared. The cellulose and hyaluronic acid functionalization was confirmed by using FTIR and NMR analysis. The crosslinking reaction took place at ambient conditions for 24 h. It was observed that the swelling capacity of the multi-component hydrogel declined with the increasing amount of BC due to its high crosslinking degree. In addition, the porous morphology of hydrogels makes them suitable for wound dressing applications. SEM results revealed that pore size and porosity decreased with increasing BC concentration. MTT assay demonstrated that the hydrogels promote cell proliferation and adhesion for 3T3 cells. In vitro cell culturing within the hydrogel demonstrated good cell spreading.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"682 - 691"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Xanthan Gum and Lignin Grafted Chemically Crosslinked Hydrogels for Dye Removal: Synthesis, Characterization and Isotherms Studies 用于去除染料的黄原胶和木质素接枝化学交联水凝胶：合成、表征和等温线研究

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X23600552

Akshita Srivastava, Manu, Rajinder K. Gupta

{"title":"Xanthan Gum and Lignin Grafted Chemically Crosslinked Hydrogels for Dye Removal: Synthesis, Characterization and Isotherms Studies","authors":"Akshita Srivastava,  Manu, Rajinder K. Gupta","doi":"10.1134/S0965545X23600552","DOIUrl":"10.1134/S0965545X23600552","url":null,"abstract":"In the present investigation synthesis of Xanthan Gum (XG-g-PAAcoAM), Lignosulphonate sodium salt (LS-g-PAAcoAM), and their combination (XG/LS-g-PAAcoAM) based hydrogels by grafting them onto acrylic acid and acrylamide for efficient removal of Methylene Blue dye have been reported. The results were found to be reliable with a removal rate exceeding 91% when administered at a dosage of 0.2 g in a 20 mL solution of Methylene blue dye over a period of 7 h. The hydrogels have been characterized by various techniques using Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, and X-ray diffraction analysis. Among the three commonly used isotherms (Langmuir, Freundlich, and Temkin), the Freundlich isotherm model exhibits the highest level of fit for the dye adsorption as evident with the R2 value of 0.99. This study provides a meaningful comparative insight towards using these natural polymers i.e., XG and LS as feedstock for hydrogel synthesis and efficient adsorbent for wastewater treatment applications.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"725 - 733"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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