Polymer Bulletin最新文献

{"title":"A novel polymer nanocomposite system for rapid dimethyl phthalate toxicity removal","authors":"K. Anju,&nbsp;Libu K. Alexander","doi":"10.1007/s00289-024-05500-w","DOIUrl":"10.1007/s00289-024-05500-w","url":null,"abstract":"<div><p>Industrial manufacturing processes using Dimethyl Phthalate (DMP) based plasticizers contribute significantly to the growing issue of water pollution. The processes that can remove DMP at lower concentrations (~ 1 ppm) are seriously lacking for real-world application. The study aims for efficient adsorptive removal of DMP using a facilely synthesized zinc oxide incorporated polypyrrole (PPy_ZnO) polymer nanocomposites. A high-yield synthesis of PPy_ZnO was achieved through the oxidative polymerisation method. XRD, FESEM, and BET-BJH characterized the synthesized samples. The study found PPy_ZnO composite with 0.03 g of ZnO as a novel adsorbent for DMP. The PPy_ZnO removed 91.84% of DMP from a 1 ppm aqueous solution in 10 min—a rarity with lower concentrations of phthalate. Also, the results demonstrate that PPy_ZnO is an attractive and feasible material for removing higher and lower DMP concentrations. The enhanced adsorption phenomena are explained based on the synergetic effect of slit-like micropores and conjugated benzene rings in the PPy_ZnO. The DMP molecules become trapped inside the pores and are held there primarily by electrostatic attraction, H-bonding, and π–π interactions. This research shows that engineered surface functional groups of polymer nanocomposites could be used to make high-performance phthalate adsorbents.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"147 - 163"},"PeriodicalIF":3.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184722","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":"Crystal violet removal from waste water by sulfonated poly (glycidyl methacrylate) nano-adsorbent: optimization by response surface methodology, isotherms, kinetics, and thermodynamics studies","authors":"Randa E. Khalifa,&nbsp;Mortaga M. Abou-Krisha,&nbsp;Ahmed M. Omer,&nbsp;Abdulrahman G. Alhamzani,&nbsp;Mohamed E. Youssef,&nbsp;Tarek A. Yousef,&nbsp;Tamer M. Tamer,&nbsp;Mostafa E. Salem,&nbsp;Mohamed S. Mohy-Eldin","doi":"10.1007/s00289-024-05511-7","DOIUrl":"10.1007/s00289-024-05511-7","url":null,"abstract":"<div><p>The removal of crystal violet (CV), from wastewater contaminated with dyes, was achieved by employing sulfonated poly (glycidyl methacrylate) (SPGMA) nano-adsorbent. Plackett–Burman design was utilized for screening the various sorption parameters. Optimal adsorption conditions were obtained by utilizing response surface methodology applying the Box–Behnken design in this respect. The adsorption was quite successful, reaching 255.5 mg/g under the optimum conditions, according to a second-order polynomial model. The data obtained indicated that the adsorption process adhered to the Freundlich isotherm, which suggests that the SPGMA adsorbent had a heterogeneous surface with varying energy sites and that many layers of CV sorption occurred. Furthermore, the adsorption kinetics of CV molecules onto SPGMA nanoparticles can be accurately characterized by the second-order equation. In order to understand the diffusion mechanism, various adsorption models were examined, specifically the film and intraparticle diffusion models. Additionally, the Boyd model was utilized to determine the precise step that controls the rate of adsorption for the CV ions. The Boyd diffusion model determines that the process rate is limited by film diffusion. The adsorption behavior at various temperatures demonstrates the endothermic nature of the CV adsorption process, the lack of order at the solid/liquid interface during adsorption, and confirms the feasibility of the method. Furthermore, the adsorption process was confirmed using FTIR, SEM, and EDAX analysis, respectively, of the SPGMA adsorbent before and after the CV removal process.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"165 - 196"},"PeriodicalIF":3.1,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184721","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":"Multifunctional conductive composite hydrogel facilitated by high-functionality crosslinker strategy for strain sensing applications","authors":"Xianglei Du,&nbsp;Kiran Shahzadi,&nbsp;Lai Wei,&nbsp;Tongfei Shi,&nbsp;Sajjad Haider,&nbsp;Salah Uddin Khan,&nbsp;Muhammad Faizan Nazar,&nbsp;Zaka Ullah","doi":"10.1007/s00289-024-05528-y","DOIUrl":"10.1007/s00289-024-05528-y","url":null,"abstract":"<div><p>The inferior mechanical performance and low conductivity limit the applications of hydrogels particularly in flexible electronics and tissue engineering. In this study, a highly robust and conductive hydrogel is fabricated through unique strategy of high-functionality crosslinker. The reduced graphene oxide (RGO) and chitosan (CS) act as the high-functionality crosslinker and bridge the polymers without involving any organic crosslinker. Chitosan (CS) is added for the reduction of graphene oxide (GO), while the ionic liquid (IL) facilitates the dispersion of RGO. Compared to the conventional PAA and CS hydrogels that use organic crosslinkers, the as-prepared composite hydrogel exhibits a significantly improved tensile strength. Interestingly, this technique can be used for application of coating on cotton fabric to improve its characteristics. Moreover, the sensing ability of high-strength hydrogel was also evaluated for applied strain. Based on this strategy, the mechanical properties and conductivity of the gel can be decoupled and separately tuned. The fabrication method in this work is facile and cost-effective, broadening its application in producing robust deformable electronics on bulk scale.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"245 - 262"},"PeriodicalIF":3.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184821","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":"Optimized production and comparative analysis of microcrystalline cellulose particles from jute and viscose fiber wastes","authors":"Gizem Ceylan Türkoğlu,&nbsp;Ümit Halis Erdoğan,&nbsp;Aylin Ziylan,&nbsp;Ayşe Merih Sarıışık","doi":"10.1007/s00289-024-05524-2","DOIUrl":"10.1007/s00289-024-05524-2","url":null,"abstract":"<div><p>This study aims to prepare and characterize microscale cellulose particles from waste for potential use as a reinforcement material in composites. Thus, cellulose particles were obtained using a two-stage chemical–mechanical acid hydrolysis method involving, a nitric acid (HNO₃)-acetic acid (HAc) solution followed by mechanical grinding. Morphological properties of the cellulose particles were investigated using optical microscopy, scanning electron microscopy, and a particle size distribution analyzer. The crystallography, thermal stability, and chemical structure were examined using X-ray diffraction analysis, thermogravimetric analysis, and Fourier transform infrared spectroscopy, respectively. Additionally, degree of polymerization and moisture content were determined. Morphological analyses revealed that cellulose particles from wastes of jute (JC-125-30) and viscose fibers (VC-125-30) treated at 125 °C for 30 min have very low span values with average particle sizes of 28.9 µm and 28.4 µm, respectively. In addition, the samples had higher moisture uptake, lower degrees of polymerization, smaller sizes, and a more uniform particle distribution compared to commercial cellulose particles. This paper proposes an improved method to produce microsized cellulose with small particle sizes and homogeneous distribution for industrial reuse of cellulosic textile waste.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"127 - 146"},"PeriodicalIF":3.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184822","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 of three-dimensional Mott’s VRH conduction mechanism in core–shell structured polyaniline/zinc oxide nanocomposites for sensing applications","authors":"Manoj Kumar,&nbsp; Supreet,&nbsp;Smriti Sharma,&nbsp;Sneh Lata Goyal,&nbsp;Sanjeev Kumar,&nbsp; Asha,&nbsp;Jasvir Dalal,&nbsp;Rishi Pal","doi":"10.1007/s00289-024-05512-6","DOIUrl":"10.1007/s00289-024-05512-6","url":null,"abstract":"<div><p>The electrical conductivity in polyaniline/zinc oxide (PANI/ZnO) nanocomposites possess core–shell structures has been reported in present research work and Mott’s variable range hopping (VRH) conduction mechanism to explain the reason behind increased conductivity. The core–shell structured pristine and ZnO nanoparticles (NPs) embedded polyaniline nanocomposite samples have been synthesized through chemical oxidative polymerization synthesis route with different doping concentrations of ZnO NPs, i.e., 0, 5, 10, 15, and 20 wt% in polyaniline (PANI) matrix. The formation of desired samples has been inveterate through Fourier transform infrared spectra (FTIR) which show the existence of required various fundamental bands in the samples. The enhancement in ratio of area under the curves of bipolaronic to polaronic band from 1.2742 to 1.5496 with the enhancement in ZnO NPs concentration in the PANI matrix indicates an increase in electrical conductivity. The prepared samples have electrical conductivity in semi-conducting range, i.e., 0.28 × 10^–4, 1.01 × 10^–4, 2.22 × 10^–4, 4.96 × 10^–4 and 6.29 × 10^–4 S/cm for the samples Z0, Z1, Z2, Z3 and Z4, respectively. This observed enhancement in electrical conductivity with the increase in operating temperature suggests the semi-conducting nature of prepared samples. Due to the constraints of the Arrhenius and Kivelson model, the charge transport properties were investigated systematically through Mott’s variable range hopping (VRH) model. In the given temperature range, the electrical conductivity of all the pristine and nanocomposite is well followed with a three-dimensional VRH model. In addition, results suggest that the material can be beneficial in their utilization as sensing applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"111 - 125"},"PeriodicalIF":3.1,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184823","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":"Functionalization of chitosan/alumina nanoparticles with carboxylic groups using phthalic anhydride for adsorption of methylene blue dye via response surface methodology","authors":"Hassan Alshahrani,&nbsp;Ahmed Saud Abdulhameed,&nbsp;Mohammad K. A. Khan,&nbsp;Rima Heider Al Omari,&nbsp;Sameer Algburi","doi":"10.1007/s00289-024-05522-4","DOIUrl":"10.1007/s00289-024-05522-4","url":null,"abstract":"<div><p>The application of polymer-based nanocomposites for the removal of organic dyes from water bodies presents a relevant approach. In the present study, a chitosan/alumina nanoparticles were chemically modified with carboxylic groups using phthalic anhydride to develop an effective adsorbent of chitosan-phthalic anhydride/alumina nanoparticles for methylene blue dye adsorption. The physicochemical characteristics of the developed adsorbent (carboxylated chitosan-phthalic anhydride/alumina nanoparticles, CHI-PHA/ANPs) have been thoroughly examined using various methods such as pH_pzc, CHN–O, XRD, FTIR, BET, and FESEM–EDX. The study thoroughly investigated the modeling of adsorption using response surface methodology. It carefully examined the various factors that influence adsorption, such as the dose of CHI-PHA/ANPs (0.02–0.08 g), the duration of time (10–140 min), and the pH level (4–10). The Freundlich isotherm exhibits the equilibrium behavior of MB by CHI-PHA/ANPs. The kinetics results of MB adsorption by CHI-PHA/ANPs were accurately explained using a pseudo-second-order model. The adsorption process was shown to be endothermic by the positive value of enthalpy (∆<i>H</i>°, 5.002 kJ/mol), spontaneous by the negative values of Gibbs free energy (Δ<i>G</i>°, 4.706–5.683 kJ/mol), and more random at the adsorbate/adsorbent contact by the positive value of entropy (∆<i>S</i>°, 0.032 kJ/molK). The Langmuir’s maximum adsorption capacity of CHI-PHA/ANPs is 207.7 mg/g. The efficient adsorption of MB on the CHI-PHA/ANPs can be attributed to various interactions (electrostatic forces, π–π, n–π, and H-bond interactions). This study highlights the significant potential of CHI-PHA/ANPs as a promising adsorbent for effectively removing cationic dyes from wastewater.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"87 - 109"},"PeriodicalIF":3.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184747","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":"Preparation and chromatographic properties of ordered macroporous polymer monoliths by colloidal crystal templating method","authors":"Mingao Li,&nbsp;Huidan Zhang,&nbsp;Wenlin Zhong,&nbsp;Jiming Ou,&nbsp;Jianfeng He,&nbsp;Quanzhou Wu","doi":"10.1007/s00289-024-05529-x","DOIUrl":"10.1007/s00289-024-05529-x","url":null,"abstract":"<div><p>The ability to control the homogeneous morphology and tune the macropore size is of great significance for tailoring monolithic columns with ideal separation performance. In this paper, the preparation of three-dimensionally ordered macroporous polymer monoliths (OMMC) by a colloidal crystal templating method is reported. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), nitrogen adsorption and thermal analysis were used to characterize the chemical composition, pore structure and thermal stability of the OMMC. The results demonstrated that ordered macroporous carboxyl-functionalized polyester monolithic column (OEMC) and ordered macroporous carboxyl-functionalized polystyrene monolithic column (OSMC) could be successfully prepared by using SiO₂ colloidal crystals as porogen. Both OEMC and OSMC had a three-dimensionally ordered macroporous structure with high porosity, submicron-scale pore walls and macropores. Their macropore diameters were easily controlled from 192 to 772 nm by using different monodisperse SiO₂ beads. Compared to OEMC, OSMC had higher mechanical strength and showed greater solvent resistance to water and methanol. The permeability of OSMCs was 1.33 ~ 3.59 × 10^–15 m². Depending on the electrostatic force, a 4.6 × 10 mm short column had an ability to distinguish between lysozyme (LYZ) and bovine serum albumin (BSA). The highest column efficiencies (<i>n</i>) corresponding to LYZ and BSA were 5494 and 1992 N·m⁻¹, respectively. This study will provide valuable guiding suggestions for the development of 3DOM monolithic columns.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"69 - 85"},"PeriodicalIF":3.1,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184746","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":"Banana pseudo-stem supported polymeric adsorbent material for the treatment of wastewater contaminated with dyes","authors":"S. Shruthi,&nbsp;B. Vishalakshi","doi":"10.1007/s00289-024-05517-1","DOIUrl":"10.1007/s00289-024-05517-1","url":null,"abstract":"<div><p>A polymer adsorbent material has been developed via microwave-assisted free radical copolymerization of 4-acryloylmorpholine (AcM) and N, N’-methylene bisacrylamide (MBA) in the presence of banana pseudo-stem (BPS) as the supporting material. Grafting of poly (AcM-co-MBA) occurs on polysaccharide units of BPS, resulting in a mechanically stable hydrogel, which is characterized by FTIR, TGA, SEM, EDS, XRD, and Zeta potential measurement techniques. The swelling behavior of adsorbent material in aqueous buffer solutions of pH 4.0, 7.1, and 9.0 was studied. The swelling process is observed to be governed by second-order kinetics, and the water transport appears to be non-Fickian. The material was evaluated for adsorptive removal of dyes from the aqueous solution. Maximum adsorption of 73.69 mgg⁻¹ and 67.70 mgg⁻¹ of methylene blue (MB) and crystal violet (CV), respectively, was observed. Kinetic and isotherm studies indicated the adsorption to be a pseudo-second-order kinetic process, fitting well with the Freundlich adsorption isotherm model. Further, the adsorption was found to be a spontaneous and endothermic process as indicated by thermodynamic studies. Nearly complete desorption of dyes was observed in acidic medium, indicating the potential reuse of this material as an adsorbent for the treatment of effluents contaminated with dyes.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"41 - 67"},"PeriodicalIF":3.1,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184700","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":"Characterization of PLA/PCL biocomposite food packaging film using orange peel essential oil bio-plasticizer and lignin biocompatibilizer","authors":"C. Aravindhan,&nbsp;T. Thendral Thiyaku","doi":"10.1007/s00289-024-05526-0","DOIUrl":"10.1007/s00289-024-05526-0","url":null,"abstract":"<div><p>This study presents an innovative approach for developing biocomposite food packaging films by blending polylactic acid (PLA) and polycaprolactone (PCL) with orange (<i>Citrus reticulata</i>) peel essential oil (OEO) as a bio-plasticizer and lignin as a biocompatibilizer. The utilization of OEO, derived through steam distillation, enhances the antimicrobial, antioxidant, and flexible properties of the films, while lignin from grape stalks improves polymer compatibility and mechanical performance. The biodegradable PCL and PLA granules were sourced from Metalon Marketing, India, and were combined with chloroform, lignin, and varying concentrations of OEO to form the biocomposite films. The prepared films underwent a comprehensive set of tests, including opacity, thermal stability (TGA), barrier properties, hydrophobicity (contact angle), mechanical testing, and antimicrobial effectiveness. Among the tested samples, specimen M5, containing 15 wt.% OEO, exhibited the most favorable results across all evaluations. M5 achieved the highest opacity (28.7%), making it suitable for light-sensitive packaging applications. It showed the highest decomposition temperature (305 °C) and TG% (91%) in TGA, indicating enhanced thermal stability due to better interaction between OEO and the polymer matrix. M5 also had the lowest water vapor transmission rate (WVTR) of 110 g/m²/day, demonstrating superior moisture barrier properties, which can be attributed to the hydrophobic nature of OEO creating a more compact structure. The contact angle of M5 was the highest (79°), confirming improved hydrophobicity, while its mechanical properties showed optimal flexibility with an elongation at break of 43.21% and a moderate Young’s modulus of 0.97 GPa, balancing flexibility and stiffness. The antimicrobial test results for M5 showed the largest inhibition zones of 20.5 mm against Staphylococcus aureus and 19.7 mm against Escherichia coli, highlighting its superior antimicrobial activity due to higher release of bioactive compounds from OEO. Scanning electron microscopy (SEM) analysis further supports these findings by revealing a more homogeneous and refined structure for M5, with fewer visible voids compared to other samples. The fine dispersion of OEO within the PLA/PCL matrix in M5 resulted in a well-integrated and compatible polymer network, reducing microstructural flaws and enhancing overall material properties. This study not only meets the demand for sustainable and functional food packaging but also promotes the creative repurposing of agricultural byproducts, presenting a significant advancement in environmentally friendly packaging solutions.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 1","pages":"21 - 39"},"PeriodicalIF":3.1,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143184672","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":"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}