T. P. Shakhtshneider, M. A. Mikhailenko, S. A. Myz, I. M. Antonov, I. V. Eltsov, S. A. Kuznetsova, I. O. Lomovskiy
{"title":"Synthesis of the Composites of Polylactic Acid with Arabinogalactan by Ball Milling and Electron Beam Irradiation","authors":"T. P. Shakhtshneider, M. A. Mikhailenko, S. A. Myz, I. M. Antonov, I. V. Eltsov, S. A. Kuznetsova, I. O. Lomovskiy","doi":"10.1134/S0965545X26600316","DOIUrl":"10.1134/S0965545X26600316","url":null,"abstract":"<p>The new composites of polylactic acid (D-isomer, PDLA) with arabinogalactan (AG) were obtained using ball milling with subsequent heating and electron beam irradiation of the mixtures of PDLA with AG. The formation of composites was confirmed by gel permeation chromatography and IR spectroscopy. The structure and physicochemical properties of the products were studied by X-ray phase analysis, thermal analysis methods, and dissolution in water. It was shown that heating of the ball-milled PDLA–AG mixture followed by electron beam irradiation led to cross-linking of the polymers, with the formation of water-soluble and water-insoluble adducts. The PDLA–AG composite obtained by irradiation is characterized by resistance to crystallization upon heating.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856647","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}
{"title":"A Novel Interpenetrating Polymer Network Hydrogel Based on Chitosan, Sodium Polyacrylate, and Halloysite Nanoclay for Efficient Pollutant Removal from Wastewater","authors":"Hafida Sehil, Mohamed Badaoui, Abdelkader Chougui","doi":"10.1134/S0965545X26600493","DOIUrl":"10.1134/S0965545X26600493","url":null,"abstract":"<p>This study primarily focuses on the development and characterization of a novel nanohybrid interpenetrating polymer network hydrogel composed of chitosan, sodium polyacrylate, and halloysite nanotubes (CS-SA-Hal), designed for potential application in wastewater treatment. This research was motivated by the increasing interest in advanced biomaterials capable of effectively removing contaminants from aqueous media. The synthesized hydrogel was thoroughly characterized using various analytical techniques, including Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA), Differential Thermal Gravimetry (DTG), and Scanning Electron Microscopy (SEM), to elucidate its structural, thermal, and morphological properties. The results confirmed the successful incorporation of halloysite nanotubes within the polymeric matrix, contributing to the formation of a robust, interpenetrating network. Swelling experiments revealed that the CS-SA-Hal hydrogel exhibited a high swelling capacity of approximately 300%, indicating a highly crosslinked network with significant interstitial porosity. This structural feature is expected to enhance the hydrogel’s sorption properties, making it a promising candidate for environmental remediation applications. To evaluate its efficacy in wastewater treatment, the adsorption performance of the hydrogel was tested against methyl green, a representative organic dye pollutant. Remarkably, adsorption equilibrium was achieved within 5 min, and the maximum adsorption capacity under optimized conditions reached 6840 mg/g, demonstrating superior uptake performance. Kinetic and isotherm modeling revealed that the adsorption process is best described by the Freundlich isotherm model, suggesting multilayer adsorption on a heterogeneous surface. These findings highlight the potential of the CS-SA-Hal nanohybrid hydrogel as an efficient and fast-acting adsorbent for dye removal from wastewater.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856648","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}
Hui Li, Wen Li, Haitao Zhao, Zijian Xue, Yongsheng An, Hong Liu
{"title":"Conformations of Compatibilizers at the Interface in Binary Immiscible Blends under Planar Confinement","authors":"Hui Li, Wen Li, Haitao Zhao, Zijian Xue, Yongsheng An, Hong Liu","doi":"10.1134/S0965545X26600079","DOIUrl":"10.1134/S0965545X26600079","url":null,"abstract":"<p>This study investigates the conformational behavior of compatibilizers at the interface of binary immiscible blends under spatial confinement, using dissipative particle dynamics (DPD) simulations. A planar slit model is constructed to systematically examine the effect of confinement height on the dimensions and interfacial statistics of compatibilizer chains. Results show that chain compression is significant under strong confinement and progressively weakens as the slit height increases, saturating when the height approaches half of that in the unconfined state, after which the interface reaches dynamic equilibrium. Furthermore, reduced slit height markedly enhances compatibilizer density at the interface, indicating that spatial confinement promotes interfacial enrichment. Among different topological architectures, graft compatibilizers exhibit the strongest sensitivity of chain size to binary interaction parameters, outperforming linear and ring structures. These findings provide theoretical insights into the conformational regulation and interfacial distribution of compatibilizers under confined environments.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856605","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}
{"title":"Thermo-Mechanical Analysis of Graded Polymer Disks under Rotation: Influence of Material Anisotropy","authors":"P. Thakur, P. Gulial","doi":"10.1134/S0965545X2560098X","DOIUrl":"10.1134/S0965545X2560098X","url":null,"abstract":"<p>This study presents a unified thermo-mechanical analytical framework to investigate the behavior of rotating disks with particular emphasis on polymeric materials, specifically isotropic Natural Rubber. The formulation incorporates centrifugal loading, thermal gradients, and radially graded density within an axisymmetric setting. To better understand the role of material symmetry, a transversely isotropic material is introduced as a reference benchmark, enabling systematic comparison of isotropic polymer response with anisotropic stiffness behavior. Using Seth’s transition theory, closed-form expressions are derived for stress distribution, displacement, and critical angular velocity at the onset of yielding. The results demonstrate that polymer disks exhibit significantly higher deformation and stress sensitivity to thermal loading compared to stiff anisotropic materials. It is further shown that radial density gradation effectively reduces stress concentration and enhances structural stability in polymer systems. The findings provide important insights for the design and optimization of polymer-based rotating components in engineering applications.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148856649","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}
{"title":"Structural, Linear, Nonlinear, and Optoelectrical Properties of PVA-PVP:Er Blend Films for Optical Device Applications","authors":"Ramya Mandala, Borra Rajesh Kumar","doi":"10.1134/S0965545X25601145","DOIUrl":"10.1134/S0965545X25601145","url":null,"abstract":"<p>PVA-PVP blend films filled with various concentrations of Er (0.16, 0.40, 0.80, 1.58, and 3.125 wt %) were prepared using the solution-casting method. X-ray diffraction confirms the crystalline nature of PVA-PVP films due to the Er filler. The morphology of PVA-PVP films exhibits particle agglomeration and cluster formation with Er incorporation. The Raman spectra suggest possible modes of interaction between erbium ions and reactive functional groups (hydroxyl and carbonyl groups) in the PVA-PVP blend. Optical studies revealed a redshift in the absorption edge, reducing the optical bandgap from 3.65 to 3.15 eV due to the creation of localized states within the forbidden gap by Er<sup>3+</sup> ions. The increase in Er content in PVA-PVP blend films shifts the refractive index from 2.292 to 2.402. The optical dispersion parameters of PVA-PVP blend films were strongly affected by Er<sup>3+</sup> ions. The nonlinear optical and optoelectrical parameters were enhanced with the Er content in the PVA-PVP host matrix. The notable reduction in the optical band gap, accompanied by significant changes in the nonlinear optical and optoelectrical properties of PVA‑PVP:Er films, suggests their potential applications in optical devices.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613349","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}
Dingyuan Xue, Meiping Liao, Long Chen, Xufeng Yu, Guoqing Zhang
{"title":"Preparation of Multifunctional Polyacrylate-Based Hollow Microspheres and Its Applications in Radiative Cooling","authors":"Dingyuan Xue, Meiping Liao, Long Chen, Xufeng Yu, Guoqing Zhang","doi":"10.1134/S0965545X26600444","DOIUrl":"10.1134/S0965545X26600444","url":null,"abstract":"<p>Polymer-based direct radiative cooling (PDRC) materials have attracted increasing attention due to their diverse functional groups and high emissivity within the atmospheric window (8–13 µm). This study introduces a new class of hollow microspheres featuring a multifunctional poly-trimethylolpropane triacrylate (PTMPTA) shell for enhanced radiative cooling. These microspheres are synthesized via radical-initiated interfacial polymerization using heptane as the core and PTMPTA as the shell precursor, followed by thermal evaporation of the <i>n</i>-heptane core. The resulting hollow structures exhibit uniform morphology with ~2 μm diameter and ~50 nm shell thickness. The inner cavities facilitate strong light scattering and efficient thermal emission. The microspheres are integrated onto fabric substrates through a scalable coating process, forming composite fabrics with superior spectral selectivity. The coatings achieve solar reflectance exceeding 80% (0.3–2.5 μm) and infrared emissivity above 90% (8–13 μm), effectively reducing solar heat gain while enhancing radiative heat loss. Outdoor comparative measurements against uncoated fabric substrates further demonstrate the cooling advantage of the composite coating: Under typical outdoor conditions (solar irradiance >1 kW/m<sup>2</sup>), the surface temperature of the coated fabric was consistently lower than that of the pristine fabric, with a maximum temperature difference of 6.9°C. Skin surface tests demonstrated a temperature reduction of approximately 2–3°C when covered by the coated fabric. These results underscore the material’s potential for practical passive cooling applications in outdoor equipment, wearable textiles, and architectural coatings.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613347","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}
{"title":"Tunable Wettability and Performance of Coatings Based on Multidimensional SiO2/Silicone Rubber Composite Microspheres","authors":"Xinmei Yan, Zichen Chang, Haipeng Zou, Guanghao Chen, Yan Jiang, Hongwen Zhang","doi":"10.1134/S0965545X26600456","DOIUrl":"10.1134/S0965545X26600456","url":null,"abstract":"<p>This paper reports triple-scale raspberry-like composite microspheres synthesized via hydrosilylation, achieving tunable surface roughness. Hierarchical assembly of Dual-Particle-Size SiO<sub>2</sub> particles (220 and 84 nm) on silicone rubber microspheres enabled systematic investigation of SiO<sub>2</sub> size ratio effects on the wettability of composite. Composite coatings were characterized by FTIR, SEM and contact angle measurements. When the 80 : 20 ratio of 220 nm SiO<sub>2</sub> and 84 nm SiO<sub>2</sub>, the surface of composite achieved maximum water contact angle (157° ± 1°) with robust Cassie–Baxter stability, showing promise for self-cleaning, anti-icing and related applications.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613240","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}
{"title":"Influence of Expanded Perlite Surface Treatment on the Thermal and Mechanical Properties of Rigid PVC Composites","authors":"Linda Gouissem","doi":"10.1134/S0965545X2560125X","DOIUrl":"10.1134/S0965545X2560125X","url":null,"abstract":"<p>Expanded perlite is a promising lightweight filler for rigid poly(vinyl chloride) (PVC) composites; however, its inherently hydrophilic surface and weak interfacial affinity limit its reinforcing efficiency. This work investigates the role of surface chemistry in controlling the thermo-mechanical behavior and degradation of PVC containing 3–10 vol % untreated (UnExP) and stearic-acid-treated (TExP) perlite. Owing to the filler’s very low bulk density, these volumetric fractions correspond to ultra-low weight contents (<3.4 wt %), significantly affecting thermal residue levels. Thermogravimetric analysis shows that perlite does not alter PVC’s intrinsic multistep degradation mechanism. Nevertheless, surface modification systematically delays the onset of dehydrochlorination and reduces first-stage mass loss across all compositions. At 3 vol %, even UnExP slows degradation, suggesting a transient barrier effect via HCl adsorption within its porous network. The enhanced stability of TExP-filled systems is attributed to improved filler–matrix interactions at the perlite surface, promoting dispersion, reducing interfacial friction, and enhancing thermal stability and ductility. Mechanically, stearic acid treatment shifts the composite response from reinforcement-dominated to lubrication-driven behavior. TExP decreases stiffness and strength while markedly enhancing ductility, indicating increased interfacial mobility. In contrast, UnExP at 3 vol % improves stiffness and impact resistance, although this reinforcing effect diminishes at higher loadings due to morphological heterogeneity. Overall, surface-engineered perlite acts as an interfacial regulator capable of tuning both degradation kinetics and mechanical performance in lightweight rigid PVC systems.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148613348","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}
G. N. Gubanova, G. K. Lebedeva, N. V. Zakharova, M. E. Vylegzhanina, E. V. Kruchinina, E. N. Vlasova, E. N. Popova, V. K. Lavrentiev, K. V. Danilova, S. V. Kononova
{"title":"Effect of Hydroxyl-Containing Fragments on the Structure and Properties of Copoly(amide-imides) for Membrane Technologies","authors":"G. N. Gubanova, G. K. Lebedeva, N. V. Zakharova, M. E. Vylegzhanina, E. V. Kruchinina, E. N. Vlasova, E. N. Popova, V. K. Lavrentiev, K. V. Danilova, S. V. Kononova","doi":"10.1134/S0965545X25601121","DOIUrl":"10.1134/S0965545X25601121","url":null,"abstract":"<p>Novel aromatic copoly(amide-imides) have been synthesized using 2-(4-carboxyphenyl)-1,3-dioxoisoindoline-5-carboxylic acid and two diamines, 3,3'-dihydroxy-4,4'-diaminodiphenylmethane and metaphenylenediamine, taken at molar ratios of 7 : 3, 1 : 1, and 3 : 7. The structure, thermal, mechanical, morphological, and transport properties of copoly(amide-imide) nonporous membranes have been studied in comparison with similar copoly(amide-imides) containing carboxyl-containing fragments. It has been shown that films of poly(amide-imides) and copoly(amide-imides) with carboxyl groups –COOH in the diamine fragment exhibit higher permeability compared to similar polymers containing metaphenylenediamine fragments in macrochains and are characterized by more pronounced hydrophilicity. This effect is determined by the occurrence of intra- and intermolecular interactions, with the latter predominating for the copolymers containing carboxyl groups, and their virtual absence in copoly(amide-imides) with metaphenylenediamine fragments, as confirmed by thermal analysis and molecular hydrodynamics.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148060806","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}
A. V. Plutalova, I. O. Solomin, N. S. Serkhacheva, R. V. Toms, N. I. Prokopov, E. A. Lysenko, E. V. Chernikova
{"title":"Novel Poly(4-vinylpyridine)-Based Amphiphilic Copolymers for Reinforcement of Sandy Soils","authors":"A. V. Plutalova, I. O. Solomin, N. S. Serkhacheva, R. V. Toms, N. I. Prokopov, E. A. Lysenko, E. V. Chernikova","doi":"10.1134/S0965545X26600250","DOIUrl":"10.1134/S0965545X26600250","url":null,"abstract":"<p>RAFT polymerization was applied for the synthesis of poly(4-vinylpyridine) and copolymers of 4‑vinylpyridine, containing 5 or 10 mol % of hydrophobic monomers of methyl methacrylate or methyl acrylate. The influence of chemical nature of hydrophobic comonomer and the copolymer composition on physico-chemical properties of polymers and their ability to strengthen sandy soils was systematically studied. It is shown that introduction of MMA or MA units does not affect the glass transition temperature of P4VP, its dispersibility in aqueous media and has minor effects on wettability of polymer films. At the same time, surface activity of P4VP was increased, especially for the samples, containing 10 mol % of comonomer units. P4VP itself as well as its copolymers demonstrate good mechanical and structural stabilizing properties towards sandy soils, if the sand was soak by polymer aqueous dispersions at pH 3. The sand, stabilized by the copolymer from 90% of 4VP units and 10% of MA units, demonstrated the best mechanical strength and durability towards both dynamic and static perturbations.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"68 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148060798","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}