Polymer Science, Series A最新文献_第5页

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}

引用次数: 0

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

引用次数: 0

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}

引用次数: 0

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}

引用次数: 0

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

引用次数: 0

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

Influence of Non-Activated and Activated Biochar on Properties of Flexible Poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) Bioplastic 非活化和活化生物炭对柔性聚（l -丙交酯）-b-聚（乙二醇）-b-聚（l -丙交酯）生物塑料性能的影响

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-12-09 DOI: 10.1134/S0965545X2560022X

Theeraphol Phromsopha, Prasong Srihanam, Yodthong Baimark

{"title":"Influence of Non-Activated and Activated Biochar on Properties of Flexible Poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) Bioplastic","authors":"Theeraphol Phromsopha, Prasong Srihanam, Yodthong Baimark","doi":"10.1134/S0965545X2560022X","DOIUrl":"10.1134/S0965545X2560022X","url":null,"abstract":"In this work, flexible poly(L-lactide)-b-poly(ethylene glycol)-b-poly(L-lactide) (PLA-PEG-PLA) composites incorporated with non-activated coconut-shell biochar (BC) and activated coconut-shell biochar (ABC) were successfully prepared through melt blending. Scanning electron microscopy (SEM) indicates that all the composites showed good phase compatibility, suggesting strong interfacial adhesion between the PLA-PEG-PLA matrix and both the biochar types. Differential scanning calorimetry (DSC) demonstrated that the composites containing 0.5 wt % biochar exhibited the highest crystallinity for both BC and ABC. When the biochar content exceeded 0.5 wt %, the effectiveness of biochar as a nucleating agent diminished due to the restriction of chain mobility in PLA-PEG-PLA. Thermal stability from thermogravimetric analysis (TGA) and mechanical properties from tensile tests of the composites were improved by the addition of these biochars. The 0.5 wt % biochar yielded the highest maximum tensile strength and Young’s modulus values of the composites. The DSC, TGA, and tensile results indicate that BC has a high potential to be used as nucleating, thermal stabilizing, and reinforcing agents for PLA-PEG-PLA compared to the ABC.","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":"145730062","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

Swelling Behavior and Metformin HCl Release from Thermoresponsive Hydrogels of Poly((sulfobetaine methacrylate)-co-N-isopropylacrylamide) 聚甲基丙烯酸亚砜甜菜碱-co- n -异丙基丙烯酰胺热响应水凝胶的溶胀行为及二甲双胍释放

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-10-27 DOI: 10.1134/S0965545X25600772

Noverra Mardhatillah Nizardo, Fauziah Damayanti, Kayla Aliya, Maria Lucia Ardhani Dwi Lestari

{"title":"Swelling Behavior and Metformin HCl Release from Thermoresponsive Hydrogels of Poly((sulfobetaine methacrylate)-co-N-isopropylacrylamide)","authors":"Noverra Mardhatillah Nizardo, Fauziah Damayanti, Kayla Aliya, Maria Lucia Ardhani Dwi Lestari","doi":"10.1134/S0965545X25600772","DOIUrl":"10.1134/S0965545X25600772","url":null,"abstract":"Poly((sulfobetaine methacrylate)-co-N-isopropylacrylamide) (P(SPE-co-NIPAM)) is a hydrogel with LCST and UCST types of thermoresponsive behavior that can be used as a drug delivery system. The hydrogel has been successfully synthesized via free radical polymerization, using the N,N'-methylene-bisacrylamide (MBA) as the crosslinker and ammonium persulfate (APS) as the initiator. The hydrogel was then characterized using Fourier transform infrared (FTIR), which showed the disappearance of the C=C vinyl group from both monomers in the hydrogels which confirmed the success of the synthesis. The gel content showed that increasing the concentration of MBA caused the increase of gel content of the hydrogel, while the ESR was decreased. The swelling test was conducted to study the thermoresponsive behavior of the hydrogels and revealed that the swelling decreases as the temperature increases. Additionally, increasing the concentration of APS and the composition of NIPAM would lead to a higher swelling ratio. The deswelling test indicated that a greater SPE monomer composition resulted in a lower deswelling rate. The P(SPE-co-NIPAM) hydrogel was investigated for its performance as an active agent delivery. It was found that the P(SPE20-co-NIPAM80) with sample code S20N80-4-1 and S20N80-2-2, were able to load 2.75 and 4.8% of the metformin-HCl, respectively. The in vitro release test of these hydrogels showed the cumulative release from metformin-HCl of 26.33 and 19.34% in phosphate buffer solution pH 7.4 at 37°C within 15 h.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145371682","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

Synthesis and Characterization of Gelatin-Based Nanoparticles for Potential Drug Delivery in Neurodegenerative Disease Treatment 用于神经退行性疾病治疗的潜在药物递送的明胶纳米颗粒的合成和表征

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-10-27 DOI: 10.1134/S0965545X25600760

Oscar Ruiz-Galindo, Ana Castro-Ceseña, Mirian A. González Ayon, Angel Licea-Claverie, Arturo Zizumbo-López, Sergio A. Aguila

{"title":"Synthesis and Characterization of Gelatin-Based Nanoparticles for Potential Drug Delivery in Neurodegenerative Disease Treatment","authors":"Oscar Ruiz-Galindo, Ana Castro-Ceseña, Mirian A. González Ayon, Angel Licea-Claverie, Arturo Zizumbo-López, Sergio A. Aguila","doi":"10.1134/S0965545X25600760","DOIUrl":"10.1134/S0965545X25600760","url":null,"abstract":"Gelatin-core/poly(ethyleneglycol)-shell structured nanoparticles were synthesized via soap-free emulsion polymerization, gelatin and poly(ethylene glycol) were modified with methacrylic anhydride into methacrylated gelatin (GelMA) and poly(ethyleneglycol) dimethacrylate (PEGDMA), characterized by different techniques and used as macro-comonomers. Nanoparticles were prepared using different macro-comonomer ratios which translated into different sizes as revealed by dynamic light scattering measurements. Nanoparticles were then loaded with clioquinol as model drug for Alzheimer’s treatment, and their drug release behavior was studied, finding that nanogels impart a controlled release directly correlated with the amount of PEGDMA in relation to GelMA in them. Nanoparticles were found to be biocompatible when tested by the MTT assay on human skin fibroblasts. These characteristics make the synthesized nanogels prime candidates for their potential use as drug carriers for neurodegenerative disease treatment.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145371677","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

Influence of Different Type of Compatibilizers on Structural Features and Physical-Mechanical Properties of Nanocomposites Based on Polypropylene Random Copolymer 不同类型增容剂对聚丙烯无规共聚物纳米复合材料结构特征和物理力学性能的影响

IF 1.1 4区化学

Polymer Science, Series A Pub Date : 2025-10-27 DOI: 10.1134/S0965545X24601163

Fatima Mustafayeva, Najaf Kakhramanov, Ismayil Ismayilov, Nazim Sadikhov

{"title":"Influence of Different Type of Compatibilizers on Structural Features and Physical-Mechanical Properties of Nanocomposites Based on Polypropylene Random Copolymer","authors":"Fatima Mustafayeva, Najaf Kakhramanov, Ismayil Ismayilov, Nazim Sadikhov","doi":"10.1134/S0965545X24601163","DOIUrl":"10.1134/S0965545X24601163","url":null,"abstract":"The article shows the influence of the type and composition of commercial grade compatibilizers on the degree of compatibility difficult mix polypropylene random copolymer/aluminum hydroxide (PP‑R/Al(OH)3) systems. The influence of the compatibilizer type and the aluminum hydroxide content on the properties of the PP-R/Al(OH)3 composite was investigated. For this purpose, PP-R/Al(OH)3 and PP‑R/compatibilizer /Al(OH)3 composites were obtained by mixing them on hot rollers in the melt mode. Three kinds of compatibilizer were used: maleic anhydride functionalized polypropylene copolymer, maleic anhydride functionalized homopolypropylene, blend of fatty acid metal soap and amide. The influence of compatibilizers on the properties and compatibility of PP-R/Al(OH)3 composites was studied. Compatibilization was compared from the physical and mechanical properties, morphology, and melt properties of the blends. The morphology and dispersion of Al(OH)3 in PP-R composites evaluated using scanning electron microscope (SEM). It was shown that relatively uniform dispersion of Al(OH)3 in the PP-R matrix was achieved in the presence of compatibilizers. Studies showed that the compatibilizers not only improved the compatibility of the mixed components of the mixture but also the interfacial adhesion between Al(OH)3 and PP-R. Composites with a compatibilizer showed a more homogeneous morphological structure, which has a positive effect on improving their main physical and mechanical characteristics.","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"67 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145371678","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