Polymer Science, Series B最新文献_第10页

A New Approach to the Synthesis of Poly[Pyrrole-co-Vanillin] Semiconductor Polymer Doped with FeCl3 掺杂FeCl3的聚吡咯-共香兰素半导体聚合物的合成新方法

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-08-09 DOI: 10.1134/S156009042370104X

Anas Abderrahmane Lahouel, Nabahat Sahli

{"title":"A New Approach to the Synthesis of Poly[Pyrrole-co-Vanillin] Semiconductor Polymer Doped with FeCl3","authors":"Anas Abderrahmane Lahouel,  Nabahat Sahli","doi":"10.1134/S156009042370104X","DOIUrl":"10.1134/S156009042370104X","url":null,"abstract":"Conductive polymer-based applications offer several advantages, such as low cost, simple manufacturing procedures, flexibility, and other desirable properties. However, the low viscosity and solubility of these polymers make it challenging to produce layers using industrial techniques. Some commonly used conjugated conductive organic polymers include polyacetylene, polythiophene, polypyrrole, and polyaniline, among others. To expand their potential in further applications, new copolymers of vanillin and pyrrole were synthesized and characterized using various techniques, such as NMR, FTIR, UV, TGA, and electrical characterization. The optical properties of these copolymers were studied after doping using oxidation-reduction reactions with FeCl3 to understand their redox behavior. The energy gap of the studied polymers was calculated and found to increase with the oxidation agent doping according to their oxidation potential. The cationic copolymer with Maghnite-H+ had an energy gap of 0.92 eV, while the copolymer doped with FeCl3 had an energy gap of 1.13 eV. This analysis clearly demonstrates that PPHMB is a semiconducting polymer.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73112950","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

Model Free Thermal Degradation Kinetics of Bisphenol-Z Based Polymers Containing Substituted Cyclohexane Group: Syntheses and Spectral Characterization 含取代环己烷基双酚- z基聚合物的无模型热降解动力学:合成和光谱表征

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-10 DOI: 10.1134/S1560090423701026

Govindraj Latha, Madesh Priyanka, Appasamy Subasri, Arumugam Hariharan, Krishnasamy Balaji, Salem Chandrasekaran Murugavel

引用次数: 0

Synergistic Effects of Psyllium/Okra Hybrid Backbone Based Bio-Sorbent for Efficient Sequestration of Toxic Uranyl(VI) Ions from Aqueous Media 车前草/秋葵杂化骨架基生物吸附剂对水中有毒铀酰(VI)离子的协同效应

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-10 DOI: 10.1134/S1560090423701002

Anjali Singh, Balbir Singh Kaith, Rohit Mehra, Sreejay CS, Balram Lohan, Manpreet Singh Bhatti

{"title":"Synergistic Effects of Psyllium/Okra Hybrid Backbone Based Bio-Sorbent for Efficient Sequestration of Toxic Uranyl(VI) Ions from Aqueous Media","authors":"Anjali Singh, Balbir Singh Kaith, Rohit Mehra, Sreejay CS, Balram Lohan, Manpreet Singh Bhatti","doi":"10.1134/S1560090423701002","DOIUrl":"10.1134/S1560090423701002","url":null,"abstract":"In order to effectively utilize the okra mucilage and psyllium husk fibre based natural polysaccharides we have prepared acrylamide based semi-interpenetrating network by using citric acid and ammonium persulphate as the cross-linker-initiator system. This paper also discusses the swelling response of the crosslinked networks with respect to time, temperature and pH with maximum swelling percentage of 355%. This smart material designed was further explored for rapid elimination of uranyl(VI) ions from aqueous media. Response surface methodology (RSM) optimized sample showed excellent uptake efficiency via removal of uranyl(VI) ions which showed 97.1% uptake efficiency with an adsorbent dose of 1.0 g, initial concentration of 100 ppb and time duration of 1 h at room temperature. The synthesized sample was further characterized and compared with its respective backbones through techniques like FTIR, SEM-EDAX and PXRD. Thermogravimetric studies revealed the thermal stability of the bio-sorbent. Freundlich adsorption isotherm and pseudo first-order kinetics were favored in both cases. Thus, adsorption studies indicated that the synthesized semi-IPN prepared from natural blends effectively treats industrial waste commercially. The synthesized adsorbent hence proved to be an efficient device with an innovative approach towards environmental remediation.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4422448","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

Two-Photon Stereolithography—Optical Nanolithography 双光子立体光刻-光学纳米光刻

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-10 DOI: 10.1134/S1560090423700999

E. R. Zhiganshina, M. V. Arsenyev, S. A. Chesnokov

引用次数: 0

Synthesis of Antibacterial Hydrogel Nanocomposite Adsorbents Based on Carboxylated RAFT Agent/Ag Nanoparticles for Effective Dye Adsorption 基于羧化RAFT /Ag纳米颗粒的抗菌水凝胶复合吸附剂的合成及其对染料的有效吸附

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-10 DOI: 10.1134/S1560090423701014

Hossein Hosseinzadeh, Neda Khoshnood

{"title":"Synthesis of Antibacterial Hydrogel Nanocomposite Adsorbents Based on Carboxylated RAFT Agent/Ag Nanoparticles for Effective Dye Adsorption","authors":"Hossein Hosseinzadeh,  Neda Khoshnood","doi":"10.1134/S1560090423701014","DOIUrl":"10.1134/S1560090423701014","url":null,"abstract":"In this study, a novel hydrogel nanocomposite was synthesized via surface reversible addition fragmentation chain transfer polymerization of acrylic acid onto chitosan in the presence of silver nanoparticles. The structure and composition of the as-prepared nanocomposites were identified by FTIR, XRD, UV–Vis, SEM and TEM techniques. The prepared nanocomposite was used as an excellent product for the adsorption of crystal violet cationic dye. The experimental results depicted that the solution pH, dye concentration and temperature had high effect on dye adsorption capacities. The isotherm and kinetics models of the dye adsorption of nanocomposites were investigated. Moreover, the thermodynamic data demonstrated that the adsorption behavior of dyes were spontaneous and endothermic. Furthermore, the synthesized nanocomposites showed an antibacterial effect on Gram-negative E. coli bacterium. In summary, the obtained results depicted that the prepared dye adsorbents with unique properties of high adsorption capacities, easy recovery and antibacterial properties can be used as ideal candidates for many applications such as wastewater treatment, biological systems and wound dressing.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4421802","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

Polyelectrolyte Complexes of Poly(N,N-diallyl-N,N-dimethylammonium Chloride) and Drug Microparticles on Their Basis 基于聚(N,N-二烯丙基-N,N-二甲基氯化铵)和药物微粒的聚电解质配合物

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-03 DOI: 10.1134/S1560090423700677

L. A. Badykova, R. Kh. Mudarisova, S. V. Kolesov

{"title":"Polyelectrolyte Complexes of Poly(N,N-diallyl-N,N-dimethylammonium Chloride) and Drug Microparticles on Their Basis","authors":"L. A. Badykova, R. Kh. Mudarisova, S. V. Kolesov","doi":"10.1134/S1560090423700677","DOIUrl":"10.1134/S1560090423700677","url":null,"abstract":"Formation of dispersions of microparticles of polyelectrolyte complexes based on poly(N,N-diallyl-N,N-dimethylammonium chloride) and carboxylated arabinogalactan as well as their complexes with amino acids (histidine, arginine, and lysine) has been investigated by means of laser light scattering. Chemical modification of the polyelectrolytes with amino acids, inducing the decrease in the content of the ionic groups in the macromolecules, has led to the increase in the size of the polyelectrolyte complexes microparticles. The conditions for the polyelectrolyte complex systems preparation have been optimized in view of the aggregative stability and the particles size. It has been stated that mean size of the polyelectrolyte complex particles is increased linearly with the increase in the polyanion : polycation molar ratio in the complex. It has been shown that the sediments of the polyelectrolyte complexes isolated from the aqueous dispersions are stable in the form of dry particles and afford the microparticles with size comparable to this of the initial complexes upon dispersion in water. This feature opens the possibility to resolve the issue of prolonged storage of physiologically active microparticles.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4125923","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

Self-Organizing Particles of Polymer–Colloid Complexes Based on Various Molecular Weight Copolymers of N,N'-Diallyl-N,N'-dimethylammonium Chloride with Sulfur Dioxide 基于不同分子量N,N'-二烯丙基-N,N'-二甲基氯化铵与二氧化硫共聚物的聚合物-胶体配合物的自组织粒子

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-03 DOI: 10.1134/S1560090423700665

M. S. Babaev, S. V. Kolesov

引用次数: 0

Manifestation of the Supramolecular Effect in the Enzymatic Hydrolysis of Sodium Carboxymethyl Cellulose 羧甲基纤维素钠酶解过程中的超分子效应

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-03 DOI: 10.1134/S1560090423700744

V. V. Chernova, R. Yu. Lazdin, E. I. Kulish

{"title":"Manifestation of the Supramolecular Effect in the Enzymatic Hydrolysis of Sodium Carboxymethyl Cellulose","authors":"V. V. Chernova, R. Yu. Lazdin, E. I. Kulish","doi":"10.1134/S1560090423700744","DOIUrl":"10.1134/S1560090423700744","url":null,"abstract":"Manifestation of the supramolecular effect in reactions of the enzymatic hydrolysis of sodium carboxymethyl cellulose is studied. The occurrence of enzymatic hydrolysis under the action of nonspecific enzyme hyaluronidase is confirmed by the method of reducing sugars. The supramolecular structure of the polymer in solution is controlled using the approach including the use of cosolvents (modifiers), with a number of alcohols (ethanol, propylene glycol, and glycerol) being used as modifiers. It is shown that as polymer concentration in solution increases above 0.3 g/dL the rate of enzymatic hydrolysis almost ceases to raise with increasing concentration. This finding is associated with diffusion hindrances arising in interaction of the polymer with the enzyme due to an increase in the degree of aggregation of macromolecules in solution and formation of the entanglement network. In the presence of the modifiers in solution, the rate of enzymatic hydrolysis slows down. This effect can be explained by several factors: first, a decrease in the sizes of the macromolecular coil and an earlier formation of the entanglement network and, as a consequence, reduction in the accessibility of polymer units for interaction with the enzyme. Second, the modifying additives decrease the total β-glycosidase activity of hyaluronidase. It is demonstrated that the features of enzymatic hydrolysis in solution persist in the case of film samples.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4125177","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

Effect of Drug Substances of the Electrolyte Nature on the Conformational and Supramolecular State of Pectin Macromolecules in Solution 电解质性质的原料药对溶液中果胶大分子构象和超分子状态的影响

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-03 DOI: 10.1134/S1560090423700653

M. A. Afanas’eva, A. S. Shurshina, E. I. Kulish

{"title":"Effect of Drug Substances of the Electrolyte Nature on the Conformational and Supramolecular State of Pectin Macromolecules in Solution","authors":"M. A. Afanas’eva, A. S. Shurshina, E. I. Kulish","doi":"10.1134/S1560090423700653","DOIUrl":"10.1134/S1560090423700653","url":null,"abstract":"Effect of a number of low-molecular-weight drug substances on the viscous and rheological behavior of pectin solutions in dilute and semidilute solutions regimes is studied. It is shown that the introduction of a drug substance, which is a low molecular weight electrolyte, into a dilute pectin solution leads to a change in the intrinsic viscosity of the polymer and the degree of aggregation of its macromolecules. Upon introduction of the drug substance into a semidilute pectin solution the rheological behavior of the solution changes. Presence of a drug substance of the nonelectrolyte nature in pectin solution has almost no effect on the conformational and supramolecular state of pectin and, accordingly, the viscosity characteristics of solution. It is demonstrated that the electrolyte drug substances, especially polyvalent cations, affect some practically important properties of liquid and soft dosage forms produced from pectin solutions, specifically the yield stress and the rate of drug substance release. The results obtained are explained by the polyelectrolyte nature of pectin.","PeriodicalId":739,"journal":{"name":"Polymer Science, Series B","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4126227","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

Periodic Donor-Acceptor (Co)polyarylenephthalides with Tunable Photoluminescent Parameters 具有可调谐光致发光参数的周期性给受体(Co)聚苯二甲酸盐

IF 1.2 4区化学

Polymer Science, Series B Pub Date : 2023-07-03 DOI: 10.1134/S1560090423700719

V. A. Kraikin, A. A. Fatykhov, N. G. Gileva, T. A. Yangirov, S. S. Ostakhov, R. R. Kayumova, A. V. Mamykin, S. N. Salazkin

引用次数: 0