Polymer Science, Series A最新文献_第2页

Polyaniline Gel Nanocomposites: Effect of Nanofillers 聚苯胺凝胶纳米复合材料：纳米填料的作用

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2026-02-17 DOI: 10.1134/S0965545X24601229

Ashesh Garai

引用次数: 0

Studies on Comonomer Compositional Distribution of Poly(L-lactic acid) Copolymers and Its Effect on the Thermal, Mechanical, and Oxygen Barrier Properties of Fractions 聚l -乳酸共聚物单体组成分布及其对组分热、力学和氧阻隔性能影响的研究

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2026-02-17 DOI: 10.1134/S0965545X24600467

Yuan Zhang, Yan Zheng, Jian Hu, Tao Sun, Tungalag Dong, Xueyan Yun

{"title":"Studies on Comonomer Compositional Distribution of Poly(L-lactic acid) Copolymers and Its Effect on the Thermal, Mechanical, and Oxygen Barrier Properties of Fractions","authors":"Yuan Zhang, Yan Zheng, Jian Hu, Tao Sun, Tungalag Dong, Xueyan Yun","doi":"10.1134/S0965545X24600467","DOIUrl":"10.1134/S0965545X24600467","url":null,"abstract":"To investigate the effects of the different types and content of monomer units and molecular weights Mns on the thermal, mechanical and barrier properties of the copolymers. Here, three unsaturated poly(L-lactic acid-co-butyrate itaconate) (P(LA-BI)), poly(L-lactic acid-co-butyrate fumaric) (P(LA-BF)), and poly(L-lactic acid-co-butyrate maleic) (P(LA-BM)) copolymers were synthesized by melt polycondensation and subjected to repeated grading. Based on a solvent/non-solvent (chloroform/n-heptane) mixture, an original sample was fractionated into 9–10 fractions. As the fractionation proceeded, the alterations in the monomer units content and Mns of the three copolymers showed disperate trends. The P(LA-BI) with 10.4% PBI content reaches a maximum value of Mn 8.82 × 104 and has the best physical properties. The elongation at break and oxygen transmission rate (OTR) were 491.3% and 106 cm3/m2 d–1 respectively, and the degree of crosslinking was 7.7%. P(LA-BF) exhibited the second-best Mn and physical properties, while P(LA-BM) displayed the worst physical properties. The elongation at break was 3.4% and the oxygen transmission rate (OTR) was 389 cm3/(m2 d) at 7.3% BM.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339781","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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Extraction and Recovery of Polyethylenevinylacetate from a Silicon Solar Module Using the “Organic Solvent” Method and the Possibility of its Reuse 用“有机溶剂”法从硅太阳能组件中提取和回收聚乙烯乙酸酯及其再利用的可能性

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2026-02-17 DOI: 10.1134/S0965545X25601169

M. L. Keshtov, D. P. Kalinkin, I. V. Vezhenkova, M. Semenova, I. S. Chaschin, A. R. Khokhlov

{"title":"Extraction and Recovery of Polyethylenevinylacetate from a Silicon Solar Module Using the “Organic Solvent” Method and the Possibility of its Reuse","authors":"M. L. Keshtov, D. P. Kalinkin, I. V. Vezhenkova, M. Semenova, I. S. Chaschin, A. R. Khokhlov","doi":"10.1134/S0965545X25601169","DOIUrl":"10.1134/S0965545X25601169","url":null,"abstract":"Today, silicon solar modules (SM) represent the most efficient and environmentally friendly renewable energy source. However, as the market for these modules grows, problems with waste and environmental sustainability arise in parallel. Creating SM recycling technologies that fully circulate materials without waste and reuse components is a key issue that must be addressed within corporate social responsibility frameworks for environmental protection. An important step in resin recycling is separating the laminate from poly(ethylene-co-vinyl acetate) (EVA), which is commonly used as an adhesive in resin. Work has been done to reduce EVA using various organic solvents, with parameters such as type of solvent, residence time, and temperature taken into account. It was found that chlorinated hydrocarbons, such as trichloroethylene, chlorobenzene and chloroform, can effectively cause EVA swelling due to their polarity. Aromatic hydrocarbons like toluene and o-xylene provide sufficient interaction with EVA, which makes them more advantageous for industrial applications since they pose less danger than chlorine-containing solvents. Among the solvents tested, toluene turned out to be the best. The second series of tests were carried out using toluene alone, optimizing the separation process of EVA from SM components. The recovered EVA was then studied using various methods, including NMR, UV, Fourier spectroscopy, TGA, and DSC. These studies showed that reconstituted and reference EVAs exhibited similar properties without significant changes in composition. This indicates that reconstituted EVAs can be reused in SM or other applications.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339602","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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Preparation of Composite Material Based on Poly(butylene succinate) with Montmorillonite for Bone Tissue Engineering Applications 聚丁二酸丁二烯-蒙脱土制备骨组织工程用复合材料

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2026-02-17 DOI: 10.1134/S0965545X25601170

Thien Dinh Le, Ngoc Thu Nguyen, Huy Lam Pham, Chi Nhan Ha Thuc, Tien Trung Vu

{"title":"Preparation of Composite Material Based on Poly(butylene succinate) with Montmorillonite for Bone Tissue Engineering Applications","authors":"Thien Dinh Le, Ngoc Thu Nguyen, Huy Lam Pham, Chi Nhan Ha Thuc, Tien Trung Vu","doi":"10.1134/S0965545X25601170","DOIUrl":"10.1134/S0965545X25601170","url":null,"abstract":"This work focuses on the development of a biodegradable and biocompatible polymer composite based on poly(butylene succinate) (PBS) and nano-layered silicates Montmorillonite (MMT) with appropriate properties for the bone tissue engineering application. The MMT was previously modified with poly(ethylene glycol) (PEG) to increase its compatibility with the PBS and then the PBS/MMT-PEG composites were then prepared by melt mixing method. The mechanical results showed that MMT can improve the impact and flexural strength of PBS; only by adding 1% MMT the impact strength was increased by 6.8% with MMT and 13.3% with MMT-PEG, this material has relatively good mechanical properties and is suitable for bone splint applications. Moreover, the hydrophilicity of PBS composite scaffolds increased after adding MMT and increased even more with MMT-PEG. The density of composite materials is still much smaller than the materials currently used for implants. Samples were soaked in a simulated body fluid, the neoformation of bone-like apatite layer on their surfaces due to their bioactivity. The surface morphology of all samples was investigated using scanning electron microscopy (SEM) coupled with energy-dispersive X‑ray (EDX) spectroscopy. The result showed that PBS/MMT-PEG scaffolds were biocompatible and that they promoted mineralization more efficiently than pure PBS and PBS/MMT scaffolds. These results suggest that PBS/MMT-PEG scaffold has potential application in bone repair.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339783","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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Inclusion of Aqueous Polymer Microgel Particles in Silica Nanocapsules Via Surfactant-Free Inverse Miniemulsion Polymerization 通过无表面活性剂的反相微乳液聚合，水相聚合物微凝胶颗粒在二氧化硅纳米胶囊中的包合

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2026-02-17 DOI: 10.1134/S0965545X25601182

Lan Zhou, Shuang He, Xiaomin Zhu

{"title":"Inclusion of Aqueous Polymer Microgel Particles in Silica Nanocapsules Via Surfactant-Free Inverse Miniemulsion Polymerization","authors":"Lan Zhou, Shuang He, Xiaomin Zhu","doi":"10.1134/S0965545X25601182","DOIUrl":"10.1134/S0965545X25601182","url":null,"abstract":"Aqueous microgels with colloidal macromolecular networks attract increasing attention in science and technology due to their unique properties. In this work, poly(N-vinyl-2-pyrrolidone)-based-microgel@SiO2 core-shell particles are prepared via inverse miniemulsion polymerization, and hyperbranched polyethoxysiloxanes of different substitution degrees with non-hydrolysable hexadecyl groups are used as both emulsifier and silica precursor. Thus, an aqueous solution of monomer, cross-linker and initiator is emulsified in a tetradecane solution of the silica precursor using ultrasonication, and polymerization is then carried out via heating. It is shown that the emulsion droplets and subsequently the resulting capsules are smaller when polyethoxysiloxane of a higher hexadecyl substitution degree is employed. The morphology of the composite particles is controlled by the monomer concentration in the aqueous phase. At a low monomer concentration, a yolk-shell structure is formed, where a microgel particle swims in an aqueous phase encapsulated within a silica shell. With the increase of the monomer concentration, the inner aqueous phase becomes fully occupied by a microgel particle with a hollow interior. The hollow structure disappears by raising further the monomer concentration, and the maximal swelling of the microgel particle becomes unreachable due to the lack of water. The microgel@SiO2 capsules are promising carriers of different hydrophilic substances with an extremely slow but triggerable release profile, hence can find numerous applications in cosmetics and biomedicine. The alkyl-polyethoxysiloxane-assisted inverse miniemulsion polymerization is a powerful tool for simultaneous synthesis and microencapsulation.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147339785","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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Erratum to: Mechanical Properties of Nonequilibrium-Swollen Biopolymer Materials Based on Carboxyalkylated Chitosan Derivatives 基于羧烷基化壳聚糖衍生物的非平衡膨胀生物高分子材料的力学性能勘误

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-10 DOI: 10.1134/S0965545X25010018

E. A. Veretennikova, E. O. Zemlyakova, N. A. Drukarenko, A. V. Pestov, O. V. Koryakova, A. V. Zhilyakov, I. S. Kamantsev, S. A. Chernyadyev, A. V. Kuznetsov

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Research on Durability of Sealants Used in External Wall Joints of Prefabricated Concrete Buildings 装配式混凝土建筑外墙接缝密封胶耐久性研究

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-09 DOI: 10.1134/S0965545X25600954

Xiaoliang Zhong, Qingfeng Xu, Dongbo Zhang, Libo Long, Wenli Xia, Yingying Song, Lanlan Li

{"title":"Research on Durability of Sealants Used in External Wall Joints of Prefabricated Concrete Buildings","authors":"Xiaoliang Zhong, Qingfeng Xu, Dongbo Zhang, Libo Long, Wenli Xia, Yingying Song, Lanlan Li","doi":"10.1134/S0965545X25600954","DOIUrl":"10.1134/S0965545X25600954","url":null,"abstract":"Sealant materials serve as the primary waterproof barrier for the external walls of prefabricated concrete buildings. Their durability is a crucial performance indicator, directly influencing the effectiveness of waterproofing and service lifespan of buildings. Therefore, the assessment of sealant durability is a critical area of research with substantial practical implications. This study evaluates the durability characteristics of three commercially available sealant types: one-component modified silicone, two-component modified silicone, and polyurethane sealants. A comprehensive testing program was conducted, involving specimen preparation and subsequent exposure to four distinct aging conditions: natural aging, thermal aging, UV aging, and accelerated artificial climate aging. This study aimed to effectively assess the influence of various aging conditions on the evolution of the physical and mechanical properties of the abovementioned sealant materials. The aged sealants were characterized using Fourier-transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and volumetric swelling tests to analyze the aging mechanisms of the different sealant structures. Furthermore, the coefficient of variation method was employed to assess the durability performance of the three sealants. Testing results revealed distinct sensitivity patterns to aging conditions among the different sealant structures. The one-component modified silicone sealant demonstrated comparable sensitivity to thermal aging, UV aging, and artificial climate aging, exhibiting superior durability performance. By contrast, both two-component modified silicone and polyurethane sealants showed increased sensitivity to UV aging and artificial climate aging conditions.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730064","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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An Advanced Water-Retaining and Anti-Erosion Soil Ameliorants Based on Xanthan Gum 基于黄原胶的新型保水抗侵蚀土壤改良剂

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-09 DOI: 10.1134/S0965545X25600966

I. Panova, K. Titkina, V. Spiridonov, V. Chernov, A. Belov, L. Ilyasov, I. A. Gritskova, A. Yaroslavov

{"title":"An Advanced Water-Retaining and Anti-Erosion Soil Ameliorants Based on Xanthan Gum","authors":"I. Panova, K. Titkina, V. Spiridonov, V. Chernov, A. Belov, L. Ilyasov, I. A. Gritskova, A. Yaroslavov","doi":"10.1134/S0965545X25600966","DOIUrl":"10.1134/S0965545X25600966","url":null,"abstract":"Natural polymers are of great interest as soil ameliorants capable of biodegradation at the end of growing season. The synthesis of interpolyelectrolyte complex (IPEC) of anionic xanthan and cationic chitosan is described, and their physico-chemical, water-retaining, anti-erosion and biological properties are compared with the properties of the individual xanthan. A combination of methods: gravimetric analysis, FTIR spectroscopy, electron microscopy, equilibrium centrifugation, mechanical strength assessment and cell-mediated hydrolysis allowed the following main results: (a) Addition of a xanthan aqueous solution to a chitosan aqueous solution result in spherical capsules with a chitosan–xanthan IPEC shell and a xanthan solution inside. (b) Destruction of the capsules, washing with water and lyophilization yields the stoichiometric IPEC with a porous structure, stabilized by electrostatic and hydrophobic interactions. (c) The swelling degree of IPEC in water is 65 and decreases to 32 after mixing IPEC with sand. (d) Addition of IPEC and xanthan to sand increases the maximum water capacity from 27% up to 59–62% while a substantial part of water in the modified sand retains available to plants. (e) Application of IPEC and xanthan over sand leads to the protective polymer-sand coatings, resistant to water erosion; the IPEC-sand coating provides only 1.4 wt % sand loss versus 16 wt % sand loss for the xanthan-sand coating. (f) Field trails have shown that IPEC has a longer service life. (g) Soil microorganisms utilize xanthan and IPEC, with the former being consumed much faster than the latter. The obtained results indicate the potential of using biodegradable IPEC as a combined eco-friendly soil ameliorant.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730063","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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Piezoelectric Properties of the PVDF Track Membranes PVDF轨道膜的压电性能

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-09 DOI: 10.1134/S0965545X25600644

E. A. Volgina, D. E. Temnov, A. A. Kononov, A. N. Nechaev

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Conformational Behavior of a Single Polymer Chain with Polar Groups under Stretching in аn Electric Field 带极性基团的单链聚合物在拉伸下的构象行为

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-09 DOI: 10.1134/S0965545X25600942

T. Yu. Merzliakova, Y. D. Gordievskaya, E. Yu. Kramarenko

{"title":"Conformational Behavior of a Single Polymer Chain with Polar Groups under Stretching in аn Electric Field","authors":"T. Yu. Merzliakova, Y. D. Gordievskaya, E. Yu. Kramarenko","doi":"10.1134/S0965545X25600942","DOIUrl":"10.1134/S0965545X25600942","url":null,"abstract":"The conformational behavior of a single polymer chain with polar groups is studied using molecular dynamics simulations under the combined action of a mechanical stretching force and an external electric field. The polar groups are uniformly distributed along the chain and modeled as dipolar units composed of two oppositely charged beads that are covalently bonded together. One of the beads is incorporated into the backbone chain, while the other forms a side group. Special attention is paid to the chain behavior in low-polarity environments, where the polymer forms a polyelectrolyte globule. It is demonstrated that an external electric field aligned with the stretching force F promotes chain extension at small values of F. At higher extensions, however, the application of the field leads to partial contraction of the chain due to electrostatic attraction between dipoles, which tend to align along the field direction and form linear aggregates. The structure of ionic aggregates and the degree of orientational ordering of dipoles are analyzed as functions of solvent polarity, the field strength, and the relative orientation of the electric field and the stretching force.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145729689","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