Polymer Science, Series A最新文献_第6页

Layer-by-Layer Deposition of Chitosan/Hyaluronic Acid Polyelectrolyte Complex Coatings onto Polyester Films 在聚酯薄膜上逐层沉积壳聚糖/透明质酸聚电解质复合物涂层

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X2460008X

A. V. Birdibekova, E. A. Starostina, A. S. Kuryanova, N. A. Aksenova, P. S. Timashev, T. A. Akopova, T. S. Demina

引用次数: 0

Effect of Morphogenesis of the Surface of Peptide Nanocomposites on their Structure and Properties 肽纳米复合材料表面的形态发生对其结构和性能的影响

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600108

A. I. Loskutov, V. B. Oshurko, S. A. Loskutov

{"title":"Effect of Morphogenesis of the Surface of Peptide Nanocomposites on their Structure and Properties","authors":"A. I. Loskutov, V. B. Oshurko, S. A. Loskutov","doi":"10.1134/S0965545X24600108","DOIUrl":"10.1134/S0965545X24600108","url":null,"abstract":"The synthesis of peptide nanocomposites from water-soluble components has many advantages. However, this raises the question of maintaining the functional properties and chemical structure of composites solid layers during long-term storage at ambient conditions. The processes of structural transformations during different stages of crystallization of hectapeptide composites with silver and gold nanoparticles in humid atmosphere were studied. The influence of temperature, humidity, nature of the substrate, its wetting, conformation of peptide molecules on the structure and electrophysical properties of the composites was considered also. Similarly to polymers two stages of crystallization were found: the initial fast and the subsequent slow. Unlike polymers, an increase in temperature does not affect this process, but even slows it down. Despite significant changes in the surface morphology of composites their electrophysical properties and conformation of molecules do not change. An increase in humidity accelerates the processes of the structural transitions. The results show that the changes in the surface morphology of PT composites under the influence of humidity relate only to the PT matrix itself and not to their locations or conformation of molecule.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"765 - 777"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299380","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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A Comprehensive Study on Physical and Mechanical Properties of Glass/Basalt Short Fibre Reinforced Thermoplastic Composites 玻璃/沥青短纤维增强热塑性复合材料物理和机械性能的综合研究

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600078

T. Gobikannan, P. Subramani, S. J. Pawar

{"title":"A Comprehensive Study on Physical and Mechanical Properties of Glass/Basalt Short Fibre Reinforced Thermoplastic Composites","authors":"T. Gobikannan, P. Subramani, S. J. Pawar","doi":"10.1134/S0965545X24600078","DOIUrl":"10.1134/S0965545X24600078","url":null,"abstract":"Basalt fibres are gaining interest in the fibre-reinforced thermoplastic industries around the world. In this work, basalt and glass short fibres reinforced polypropylene composites were produced using twin-screw extrusion and followed by injection molding. To carry out a comprehensive study on physical and mechanical properties, the composites were produced with different proportions of fibre loadings (for both fibres 5, 10, and 20 wt %). Composites were characterized and studied for tensile (at different strain rates), flexural (at different speeds), impact, dynamic mechanical analysis, density, tensile-relaxation, melt flow index test, and rheometric properties. Results indicate that tensile, flexural, dynamic mechanical analysis, and tensile-relaxation properties increased with increasing fibre proportions in the polypropylene matrix. The melt flow and rheometric behaviors of polypropylene decreased significantly with the addition of short fibres into the matrix. The overall results showed that basalt fibres can be potentially used as replacements for glass fibre to develop these thermoplastic composites.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"794 - 812"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299473","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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Polymers with [2,2′-Biquinoline]-diyldimethanamine Units in the Main Chain and Their Metal–Polymer Complexes with Copper(I) 主链中含有 [2,2′-Biquinoline]-diyldimethanamine 单元的聚合物及其与铜（I）的金属聚合物络合物

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600121

M. Ya. Goikhman, I. V. Podeshvo, N. L. Loretsyan, I. V. Gofman, V. D. Krasikov, I. I. Malakhova, L. S. Litvinova, E. N. Bykova, I. A. Nasirova, A. V. Yakimansky

引用次数: 0

Complexes Based on Polyvinyl Alcohol and a Copolymer of Sodium Salts of Styrenesulfonic and Maleic Acids 基于聚乙烯醇和苯乙烯磺酸钠与马来酸共聚物的络合物

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X23600588

E. A. Litmanovich, O. A. Pyshkina, D. E. Ochenkov, S. A. Pantsernaya, R. V. Grossman, V. E. Savchenkova, M. V. Zhilkin, V. G. Sergeyev

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Change in the Morphology and Properties of Poly(vinyl alcohol) Cryogels Depending on the Annealing Temperature 退火温度对聚（乙烯醇）冷凝胶形态和性质的影响

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X24600170

E. A. Podorozhko, V. G. Vasil’ev, M. I. Buzin, E. K. Golubev, M. A. Shcherbina

引用次数: 0

Polyacrylic Acid: A Biocompatible and Biodegradable Polymer for Controlled Drug Delivery 聚丙烯酸：用于可控给药的生物相容性和可生物降解聚合物

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-03-25 DOI: 10.1134/S0965545X2460011X

Hossein Eslami, Mojtaba Ansari, Ahmad Darvishi, Hossein Rayat Pisheh, Mahdieh Shami, Faezeh Kazemi

{"title":"Polyacrylic Acid: A Biocompatible and Biodegradable Polymer for Controlled Drug Delivery","authors":"Hossein Eslami, Mojtaba Ansari, Ahmad Darvishi, Hossein Rayat Pisheh, Mahdieh Shami, Faezeh Kazemi","doi":"10.1134/S0965545X2460011X","DOIUrl":"10.1134/S0965545X2460011X","url":null,"abstract":"Polyacrylic acid is a biocompatible and biodegradable polymer that has been widely investigated for use in drug delivery. It has a number of properties that make polyacrylic acid a promising material for various applications, including ability to form hydrogels, mucoadhesive properties, and stimuli-responsive behavior. Polyacrylic acid hydrogels can be used to deliver drugs to a variety of tissues and organs. They can be prepared in a variety of forms, including injectable gels, films, and tablets. These hydrogels can be loaded with a variety of drugs, including proteins, peptides, and small molecules. The mucoadhesive properties of polyacrylic acid make it a good choice for delivering drugs to the eye, nose, and skin. Polyacrylic acid can adhere to these mucosal surfaces, which can help to prolong the drug’s release and improve its bioavailability. The stimuli-responsive behavior of polyacrylic acid can be used to develop drug delivery systems that release drugs in response to specific stimuli, such as changes in pH, temperature, or ionic strength. This can be used to control the release of drugs in a way that is tailored to the specific needs of the patient. The research on the use of polyacrylic acid in drug delivery is ongoing. As our understanding of its properties and behavior improves, we can expect to see even more innovative and effective drug delivery systems developed in the future.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"702 - 713"},"PeriodicalIF":1.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140299577","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

Perpendicular Domain Orientation of Poly(styrene-block-methylmethacrylate (PS-b-PMMA) Thin Films Produced on Zinc Oxide Nanoparticle Layer 氧化锌纳米粒子层上生成的聚苯乙烯-嵌段-甲基丙烯酸甲酯（PS-b-PMMA）薄膜的垂直畴取向

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-02-21 DOI: 10.1134/S0965545X23600291

A. Talla, Z. N. Urgessa, J. R. Botha

引用次数: 0

Thermo- and pH-Sensitive Copolymers of N-(3-(Diethylamino)Propyl)-N-methylacrylamide and N,N-Dipropylacrylamide 对热和 pH 值敏感的 N-(3-(二乙基氨基)丙基)-N-甲基丙烯酰胺和 N,N-二丙基丙烯酰胺共聚物

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-02-21 DOI: 10.1134/S0965545X24600042

N. V. Zakharova, E. N. Danilovtseva, S. N. Zelinskii, V. V. Annenkov

{"title":"Thermo- and pH-Sensitive Copolymers of N-(3-(Diethylamino)Propyl)-N-methylacrylamide and N,N-Dipropylacrylamide","authors":"N. V. Zakharova, E. N. Danilovtseva, S. N. Zelinskii, V. V. Annenkov","doi":"10.1134/S0965545X24600042","DOIUrl":"10.1134/S0965545X24600042","url":null,"abstract":"Buffer solutions of random (co)polymers of N-(3-(diethylamino)propyl)-N-methylacrylamide and N,N-dipropylacrylamide, which contain from 0 to 95 mol % of N-(3-(diethylamino)propyl)-N-methyl-acrylamide units and have close molecular weights and the same degrees of polymerization (170 ± 10) are studied by the methods of potentiometric titration, light scattering, turbidimetry, refractometry, and viscometry. The samples are synthesized by the interaction of poly(acryloyl chloride) with N,N-diethyl-N ′-methyl-1,3-propanediamine and dipropylamine. The aqueous solutions are investigated in the concentration range from 0.0001 to 0.0350 g/cm3 and in pH range from 7.0 to 13.0. Temperature dependences of optical transmission I*, scattered light intensity I, and hydrodynamic sizes of scattering objects are obtained. Phase separation temperatures are determined. The results obtained are comparable with the data available for the previously studied copolymers but containing N-(3-(diethylamino)propyl)-N-methylacrylamide and N,N–diethyl-acrylamide units. It is shown that the structural phase transition and the characteristics of aqueous solutions for the compared copolymers depend on the structure of the (co)polymers and their composition.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"637 - 644"},"PeriodicalIF":1.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139928400","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

Evaluation of Environment Exposure Potential of Atrazine Herbicide and Synthesis of Polymeric Controlled Release Pesticide Formulations 评估阿特拉津除草剂的环境暴露潜力及合成聚合物控释农药制剂

IF 1 4区化学

Polymer Science, Series A Pub Date : 2024-02-21 DOI: 10.1134/S0965545X24600054

Atul Gupta, Abhishek Dhiman

{"title":"Evaluation of Environment Exposure Potential of Atrazine Herbicide and Synthesis of Polymeric Controlled Release Pesticide Formulations","authors":"Atul Gupta,  Abhishek Dhiman","doi":"10.1134/S0965545X24600054","DOIUrl":"10.1134/S0965545X24600054","url":null,"abstract":"A thorough understanding of pesticide fate in soil and replacement of traditional pesticide formulations with polymeric controlled release pesticide formulations may provide a preventive approach for safer and more effective application of pesticides in the field. In this direction, the present study discusses the soil adsorption study of atrazine herbicide on Indian soil and synthesis of polymeric controlled release formulation based on Azadirachta indica (Neem) (AI) leaf powder and sodium alginate. The value of Ground Ubiquity Score (GUS) for atrazine herbicide has been observed 2.58 which classifies it as a transition pesticide in terms of ground water contamination with higher Environment Exposure Potential (EEP) in Indian soil. Polymeric controlled release pesticide formulations (CRPFs) were synthesized by ionotropic gelation method with three different crosslinking ions i.e. Ca2+, Ba2+, and Al3+. These CRPFs have been characterized by FTIR, SEM-EDAX and TGA. Polymeric CRPFs released the herbicide in controlled manner for a period of 300 h and followed non-Fickian diffusion mechanism. AI-Alginate-Ca beads showed maximum cumulative release 14.99 mg/g in 300 h, followed by BaCl2 and AlCl3 crosslinked beads. The release study showed that the Polymeric CRPFs can be effective in controlling the release and adverse effects of atrazine in the environment.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"65 6","pages":"744 - 754"},"PeriodicalIF":1.0,"publicationDate":"2024-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139919035","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