Polymer Bulletin最新文献

{"title":"Fabricate of one-dimensional structure poly (vinyl alcohol)- polyethylene glycol: calcium fluoride nanocomposites via electrospinning technique: characterization and antibacterial application","authors":"Akeel Shakir Alkelaby,&nbsp;Mohammad Taghi Ahmadi,&nbsp;Asghar Esmaeili,&nbsp;Hassan Sedghi,&nbsp;Khalid Haneen Abass","doi":"10.1007/s00289-024-05503-7","DOIUrl":"10.1007/s00289-024-05503-7","url":null,"abstract":"<div><p>The one-dimensional structure preparation by electrospinning method is one of the most important especially since it can get fine diameters of fibers. Poly (vinyl alcohol) and (PVA)/polyethylene glycol (PEG) were mixed to get the blend and doped with different ratios (0.001, 0.002, 0.003) wt.% of calcium fluoride (CaF₂) to get nanocomposite were fabricated using the electrospinning method at RT and voltage of 23 kV. Structural and optical properties were studied and the antibacterial activity was examined. The result of SEM analysis showed that the polymer blend and doped samples produced a random distribution with fine fibers at an average diameter range before CaF₂ addition to be 68.97 nm and after CaF₂ addition for each sample to be 45.76, 68.71, and 98.45 nm with a smooth surface. XRD analysis confirmed the existence of semi-crystalline PVA and PEG aggregates, and the CaF₂ cubic crystalline phase appears when an additive of CaF₂ nanoparticles up to 0.003 g. Absorbance spectra were recorded in the wavelength range of (200–800) nm. Absorption increased by two times when doping of CaF₂ increased to 0.003 wt.%. The optical energy gap of fabricated films decreased with increasing CaF₂ nanoparticles from (3.6–3.3) eV, while the refractive index increased. Increasing the content of NPs for the (PVA-PEG:CaF₂) nanofibers mixture leads to an increase in the diameter of the inhibition zone for Escherichia coli for antibacterial activity.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17377 - 17391"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation and kinetics of hydrogel scaffold with sustained release ciprofloxacin hydrochloride","authors":"A. Abou-Okeil,&nbsp;Ghada M. Taha","doi":"10.1007/s00289-024-05495-4","DOIUrl":"10.1007/s00289-024-05495-4","url":null,"abstract":"<div><p>Controlled drug delivery is the mechanism that determines the frequency of the drug as well as the side effect that can be occurred. Many approaches studied the encapsulation of the drug in a polymer matrix to achieve a controlled released drug by the effect crosslinking network. In this work, a loaded hydrogel with ciprofloxacin hydrochloride has been prepared as an incremental effect on the antibacterial properties. So, four formulations named, hydrogel 1, hydrogel 2, hydrogel 3, and hydrogel 4 were prepared using different polymers concentrations (chitosan, gelatin, iota carrageenan (IC), and glutaraldehyde as crosslinking agents) ciprofloxacin hydrochloride was used as a drug model. The obtained data revealed that the hydrogels prepared from chitosan/gelatin/IC hydrogels are porous and have interconnected microstructures. The hydrogels structure was evaluated by ATR-IR spectroscopy, EDX, Swelling rate, SEM, porosity, antibacterial properties as well as drug release and kinetics. The hydrogels fractured at stresses of 0.1665 to 0.0358 Kgf / mm². The swelling rates (SR %) after 24 h. were 412%, 362%, 383%, 375% and 407% for of hydrogel 1, hydrogel 2, hydrogel 3, hydrogel 4 and ciprofloxacin hydrochloride loaded hydrogel 1, respectively. The porosity of the prepared hydrogels was increased as the concentration of IC increased from 72.4 to 78%. Loading of ciprofloxacin hydrochloride was confirmed by the presence of fluorine in the EDX measurement. The ciprofloxacin hydrochloride loaded hydrogel 1 has a sustained release of ciprofloxacin hydrochloride over a time of about 10 h. The first-order kinetic model is the best model for the release of ciprofloxacin hydrochloride from the prepared ciprofloxacin hydrochloride loaded hydrogel 1 with a regression coefficient (R²) of 0.9814. The unloaded samples of hydrogels had almost the same antibacterial properties regardless of the amount of IC. Loading the hydrogel with ciprofloxacin hydrochloride has an incremental effect on the antibacterial properties.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17393 - 17411"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-024-05495-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of glass/epoxy and hemp/epoxy honeycomb core with MWCNT filler on its comprehensive performance in buckling, static and dynamic behaviors of sandwich composite plates","authors":"Arulmurugan Raju,&nbsp;Krishnaraj Chandrasekaran","doi":"10.1007/s00289-024-05506-4","DOIUrl":"10.1007/s00289-024-05506-4","url":null,"abstract":"<div><p>The non-biodegradable nature of synthetic composites has driven the composite manufacturing industry and researchers to explore biodegradable materials. To utilize these biodegradable composites, which often have compromised properties, in static and dynamic load-bearing applications as alternatives to synthetic composites, a comprehensive comparison is essential. This study compares the buckling, vibration, and deflection characteristics of four types of honeycomb sandwich composites: glass fiber-reinforced epoxy (GFRE), multiwalled carbon nanotube (MWCNT)-reinforced GFRE, hemp fiber-reinforced epoxy (HFRE), and MWCNT-reinforced HFRE with MWCNT/GFRE skin. MWCNTs were added to both GFRE and HFRE honeycombs to enhance core characteristics. The effects of adding MWCNTs to the skins of these sandwich composites on all characteristics were investigated numerically. The elastic constants required for the numerical simulations were determined using the alternative dynamic approach. A finite element model based on higher-order deformation theory was used to perform the simulations under various boundary conditions. The findings reveal that the HFRE honeycomb sandwich composite with added MWCNTs exhibits compromised but competitive static and dynamic characteristics compared to the GFRE honeycomb sandwich composite with added MWCNTs. Additionally, the inclusion of MWCNTs in the skin results in superior performance for the HFRE honeycomb sandwich compared to the GFRE counterpart. This study demonstrates the potential of MWCNT-reinforced biodegradable composites in applications traditionally dominated by synthetic composites.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17317 - 17345"},"PeriodicalIF":3.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the impact from incorporation of fatty acid in nitrile-based synthetic rubber: film properties and biodegradability","authors":"Zhen Hern Boon,&nbsp;Yin Yin Teo,&nbsp;Fauziah Shahul Hamid,&nbsp;Desmond Teck-Chye Ang","doi":"10.1007/s00289-024-05497-2","DOIUrl":"10.1007/s00289-024-05497-2","url":null,"abstract":"<div><p>Adverse environmental impacts from the increasing volume of synthetic rubber waste and the overexploitation of fossil fuels have heightened the awareness on sustainability in the synthetic rubber industry. The current use of synthetic rubbers is not sustainable, as they are primarily produced from fossil-derived monomers, are non-biodegradable, and are difficult to recycle. In this study, poly(isoprene-<i>co</i>-acrylonitrile) incorporated with oleic acid (XNIR OL) was synthesized using free radical emulsion polymerization. Oleic acid, a prevalent fatty acid in various vegetable oils, was used in the XNIR OL formulation instead of the typical fossil-derived acids found in carboxylated nitrile rubber. The incorporation of oleic acid in the synthetic rubber was confirmed through spectroscopic analyses and acid value test. Characterizations were conducted on the rubber film to investigate the effects of oleic acid incorporation on the mechanical properties, thermal properties, oil resistance and biodegradability. The vulcanized XNIR OL film exhibited rubbery behaviour at ambient temperature, with a glass transition temperature of − 21.9 °C and satisfactory thermal stability. XNIR OL demonstrated an elongation at break of 379% but subpar tensile strength of 0.53 MPa, attributed to the presence of bulky oleic acid pendant groups. Conversely, XNIR OL showed less than 5% swelling in mineral oil, indicating that the incorporation of 5 mol% oleic acid did not adversely affect its superior oil resistance. Additionally, XNIR OL exhibited significantly improved biodegradability, with a 28.2% mass loss after 180 days of soil burial, a level comparable to natural rubber.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17347 - 17376"},"PeriodicalIF":3.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chitosan: modification and biodegradability of by-products","authors":"Great Iruoghene Edo,&nbsp;Emad Yousif,&nbsp;Mohammed H. Al-Mashhadani","doi":"10.1007/s00289-024-05510-8","DOIUrl":"10.1007/s00289-024-05510-8","url":null,"abstract":"<div><p>Chitosan has so far been the only identified naturally occurring cationic polymer that is alkaline of alkaline origin; it is derived from chitin. Along with having excellent biological activities like hemostasis, antioxidant and antibacterial activity, it also has tremendous properties like cell affinity, good biodegradability and biocompatibility. Chitosan’s limited water solubility limits its broad applicability. Nonetheless, its range of applications can be increased by enhancing its solubility and biological activity via chemical adjustments of the composition of its matrix. Different ways that chitosan can be chemically modified, as well as its primary functions and the advancement of application research, were examined. Electrospun chitosan nanofibers with random or aligned fiber structure can further be cross-linked by physical, chemical and ionic crosslinking methods. Chitosan-based materials are suitable inks for 3D/4D (bio)printing and their applicability in creating advanced drug delivery platforms and tissue-engineered constructs. Overall, there has been significant advancement in modifying chitosan as well as the use of its by-products, including the synthesis of numerous unique multifunctional chitosan derivatives, new synthetic pathways and optimization of conditions. Because modified chitosan typically has better chemical properties than unaltered compound, its by-products (modified) showing greater potential for biological properties are more widely utilized. In order to lay the groundwork for future chitosan development and application, this paper will examine the recent advancements in technologies that chemically modify chitosan as well as the applications of the compound and its by-products in a variety of industries, such as textiles and pharmaceuticals.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"16457 - 16507"},"PeriodicalIF":3.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of triple modification on structure and properties of sesbania gum","authors":"Hongbo Tang,&nbsp;Wen Zhang,&nbsp;Yanping Li,&nbsp;Xiaojun Liu","doi":"10.1007/s00289-024-05513-5","DOIUrl":"10.1007/s00289-024-05513-5","url":null,"abstract":"<div><p>Sesbania gum (SG), as a natural polymer, was modified by combining acidolysis, hydroxypropylation and esterification of chlorosulfonic acid to well adjust its properties. The acidolysis and esterification lowered the swelling capacity of SG; while, the hydroxypropylation increased the swelling capacity of SG. The peak intensity of CH₂ groups was evidently influenced by the esterification, but was hardly affected by the acidolysis and hydroxypropylation. SG was a strip-shaped semi-crystalline polymer. The acidolysis and esterification were mainly accomplished on large particles. The effect of acidolysis and esterification on the key thermodynamic parameters was contrary to that of hydroxypropylation. The hydroxypropylation decreased the thermal stability of SG; while, the acidolysis and esterification raised its thermal stability. The onset decomposition temperature and melting enthalpy were distinctly reduced by the esterification. The removal rate of Zn²⁺ by sulfonated hydroxypropyl acidolysis sesbania gum (SHASG) could reach 75.5%.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17299 - 17316"},"PeriodicalIF":3.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00289-024-05513-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"NaOH-treated rice husk, a lignocellulosic biomaterial for removal of Cr(VI) from polluted water","authors":"Parminder Kaur,&nbsp;Kalpana Raghuvanshi,&nbsp;Sandeep Kumar,&nbsp;Atul Kumar","doi":"10.1007/s00289-024-05523-3","DOIUrl":"10.1007/s00289-024-05523-3","url":null,"abstract":"<div><p>Rice husk is an inexpensive and readily available adsorbent for heavy metal ions, though its natural form lacks sufficient adsorption capacity. This study focuses on improving its ability to adsorb Cr(VI) by treating it with NaOH. After treatment with 1N NaOH at 90 °C for 4 h, the adsorption efficiency of rice husk for Cr(VI) increased by almost 30%. Field emission scanning electron microscopy and energy dispersive X-ray spectroscopy revealed an increase in the cellulosic content of the treated rice husk, while X-ray diffraction indicated the formation of new polymorphs and enhanced crystallinity of the cellulose fraction. Among the applied isotherms, the Redlich-Peterson and Langmuir models best described the adsorption, suggesting both monolayer and multilayer adsorption. The maximum monolayer adsorption capacities were determined to be 18.9, 21.1, and 22.9 mg g⁻¹ at 303 K, 313 K, and 323 K, respectively. The kinetic data fit well with pseudo-second-order and Elovich models, confirming the chemical nature of the adsorption process. Activation energy, along with other kinetic and thermodynamic parameters, showed that the process is endothermic, involving both physical and chemical interactions. FT-IR analysis identified various functional groups involved in the chemical interaction with chromium, while XPS confirmed that all adsorbed chromium was in the + 3 oxidation state. The presence of interfering anions reduced the adsorption efficiency of NaOH-treated rice husk for Cr(VI), regardless of the anion type, while regeneration studies showed that the adsorbent could be reused for up to five adsorption–desorption cycles.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17265 - 17298"},"PeriodicalIF":3.1,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and properties of carboxyl-modified polyether block silicone surfactants","authors":"Zhijie Liang,&nbsp;Jiayu Peng,&nbsp;Yang Xu,&nbsp;Haifeng Wang","doi":"10.1007/s00289-024-05518-0","DOIUrl":"10.1007/s00289-024-05518-0","url":null,"abstract":"<div><p>A series of carboxyl-modified polyether block silicone (CPES) surfactants were synthesized by the polymerization of 1,1,3,3-tetramethyldihydrodisiloxane, D4, allyl polyoxyethylene and sodium chloroacetate. The structures of the surfactants were characterized by IR and ¹H-NMR. Furthermore, the surface tension, wetting properties, foam properties, emulsifying properties and cleansing properties of the synthesized products were investigated. The results show that these compounds have high surface activity and good foaming stability. The wetting properties are general, but increasing temperature can improve the wetting ability of the product. Besides, CPES surfactants exhibit good emulsifying and cleaning ability.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17253 - 17264"},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neopterin imprinted nanofilm decorated SPR sensors: Sensitive neopterin detection from human serum","authors":"Burcu Eren Yüngeviş,&nbsp;Gözde Baydemir Peşint","doi":"10.1007/s00289-024-05516-2","DOIUrl":"10.1007/s00289-024-05516-2","url":null,"abstract":"<div><p>Neopterin (Np) is a valuable marker for monitoring infectious diseases and predicting prognosis. This study developed Np-imprinted surface plasmon resonance (SPR) sensors, specifically designed to detect Np in human serum. Characterization of the Np-imprinted (Np-MIP) and non-imprinted (NIP) SPR sensors was carried out using various techniques. The contact angle measurements revealed increased hydrophilicity of the gold sensor with the nanofilm covering, reducing the contact angles from 60.5° to 45.87° and 32.7° for NIP and Np-MIP SPR sensors, respectively. The nanofilm thickness was determined as approximately 14 nm through AFM studies. Real-time Np detection was successfully achieved with the Np-MIP SPR sensors at different concentrations. The selectivity of Np-MIP was confirmed by testing against pterin and glucose, with Np recognition being 11 and 8.25 times higher than those of pterin and glucose, respectively. Np detection from human serum yielded a detection limit of 3 ng/mL. Furthermore, the synthesized Np-MIP SPR sensors demonstrated reusability over 10 cycles without any loss in Np binding capacity. These findings indicate that Np-MIP SPR sensors possess selective detection capabilities for Np in aqueous solutions and human serum.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"17233 - 17252"},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comprehensive review of polyacrylonitrile membranes: modifications and applications","authors":"Varad A. Maske,&nbsp;Anand M. Kokate,&nbsp;Pushkar A. More,&nbsp;Ritesh S. Salunkhe,&nbsp;Aarti P. More","doi":"10.1007/s00289-024-05508-2","DOIUrl":"10.1007/s00289-024-05508-2","url":null,"abstract":"<div><p>Polyacrylonitrile (PAN) membranes have garnered significant due to their exceptional properties and versatility. PAN membranes are synthesized via fabrication techniques such as phase inversion and electrospinning and possess PAN qualities of excellent mechanical strength, thermal stability, and chemical resistance. Modifications like surface treatment, fabrications of composites, blends, and grafting are quite popular in adapting PAN membranes to diverse applications and improving their performance and qualities. These modifications provide incredible membrane customizability and help tailor specific properties according to performance requirements. As such, PAN membranes have found applications in multiple areas like oil–water separation, heavy metal ion removal, water purification, hemodialysis, lithium-ion batteries, and many more. The paper throws light on various fabrication techniques for PAN membranes and comprehensively reviews various modifications of PAN membranes along with their diverse applications. Additionally, recent advancements and emerging trends in PAN membrane research are discussed, providing insights into future directions for innovation and development.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"81 18","pages":"16415 - 16455"},"PeriodicalIF":3.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}