{"title":"Development of natural organic acid cross-linked PVA/starch films with enhanced physicochemical and antioxidant properties for extending the shelf life of Malus domestica","authors":"Janvi Rani, Saurav Kumar Maity, Uplabdhi Tyagi, Shagun Singh, Debolina Roy, Krishna Kumar, Sidhharth Sirohi, Gulshan Kumar, Balaram Pani","doi":"10.1007/s00289-026-06659-0","DOIUrl":"10.1007/s00289-026-06659-0","url":null,"abstract":"<div><p>Biodegradable food packaging materials with improved barrier, antioxidant, and mechanical properties are promising sustainable alternatives to petroleum-based plastics. The present study demonstrated the performance and efficacy of a novel combination of PVA/starch crosslinked films using organic acids, namely, gallic acid (GA) and malic acid (MA), at varying concentrations (5–20 wt%), followed by a comparative evaluation of their structural, physicochemical, mechanical, antioxidant, antibacterial, and biodegradation properties for food packaging performance. Cross-linking reduced water vapor permeability by up to 44.5% and oxygen permeability by up to 41.1%, while water solubility and swelling ratio decreased by up to 47.5% and 39.4%, respectively, compared to the uncrosslinked PS film. FTIR and XRD analyses confirmed successful intermolecular interactions and structural reorganization after cross-linking. At equivalent crosslinker concentration, GA-cross-linked films outperformed MA-cross-linked films, showing 24.8% lower WVP, 15.7% lower OP, 17.6% lower water solubility, and 16.0% lower swelling, attributed to the formation of a dense hydrogen-bonded network. The optimized PS-GA15 film showed good properties, achieving a tensile strength of 8.75 MPa, water vapor permeability of 2.76 × 10<sup>− 11</sup> g·mm/m<sup>2</sup>·s·Pa, oxygen permeability of 3.49 × 10<sup>− 14</sup> cc·mm/m<sup>2</sup>·d·atm, 73.69% DPPH radical scavenging activity, and enhanced antibacterial activity against <i>Escherichia coli</i> and <i>Staphylococcus aureus</i>. Furthermore, in real-time packaging studies on fresh-cut <i>Malus domestica</i>, PS-GA15 delayed the onset of enzymatic browning by at least 48 h relative to uncovered and PS-covered samples, reduced weight loss to 10.2% compared to 15.4% (uncovered) and 13.3% (PS) at 96 h, and better preserved pH (16.0% rise against 32.3% in uncovered controls) and titratable acidity (38.1% loss compared to 71.4% in uncovered controls) over 96 h of storage. The developed GA-cross-linked PVA/starch films therefore demonstrate strong potential as sustainable active packaging materials for preserving quality and enhancing the shelf life of highly perishable fruits such as <i>Malus domestica</i>.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926371","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 of modified chitosan microspheres for the removal of Sc(III)","authors":"Xiaoqi Liu, Renyun Zhang, Ting Chen, Luodan Xiang, Jing Wang, Guozhi Lv, Yan Liu, Ting’an Zhang","doi":"10.1007/s00289-026-06638-5","DOIUrl":"10.1007/s00289-026-06638-5","url":null,"abstract":"<div><p>Chitosan modified with polyethylene glycol-200 and crosslinked with glutaraldehyde (MCS) was synthesized for the recovery of Sc(III) ions from aqueous solutions. The prepared adsorbents were characterized by FT-IR, TGA, BET, XRD, XRF, and SEM. The effects of solution pH, adsorbent dosage, contact time, initial concentration, and temperature on the adsorption performance were systematically investigated. The characterization results confirmed the successful fabrication of MCS, and the PEG-200-assisted pore-forming strategy improved the accessible pore structure and Sc(III) adsorption performance of MCS relative to glutaraldehyde-crosslinked chitosan (GCS). A working pH of 5, an adsorbent dosage of 50 mg, a contact time of 100 min, and a temperature of 30 °C were selected for the subsequent adsorption experiments. The adsorption kinetics, isotherms, and thermodynamics of Sc(III) onto MCS were further investigated. The adsorption data were best described by the pseudo-second-order kinetic and Langmuir isotherm models, and the Langmuir model predicted a maximum monolayer adsorption capacity of 55.28 mg·g<sup>−1</sup> at 30 °C. The adsorption of Sc(III) was mainly associated with coordination interactions, electrostatic attraction, and hydrogen bonding involving the N/O-containing functional groups of MCS. The synergistic combination of PEG-200-assisted pore formation and GA crosslinking helped balance acid stability and pore accessibility, indicating that MCS has potential as an adsorbent for Sc(III) recovery from acidic aqueous media.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926602","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}
Polymer BulletinPub Date : 2026-09-03DOI: 10.1007/s00289-026-06673-2
Muhammad Taqi-uddeen Safian, Pandian Bothi Raja, Mohamad Nasir Mohamad Ibrahim
{"title":"Bio-based lignin-acrylamide corrosion inhibitor for water-based mud: Taguchi -RSM optimization, and API-aging validation","authors":"Muhammad Taqi-uddeen Safian, Pandian Bothi Raja, Mohamad Nasir Mohamad Ibrahim","doi":"10.1007/s00289-026-06673-2","DOIUrl":"10.1007/s00289-026-06673-2","url":null,"abstract":"<div><p>Corrosion control in water-based mud (WBM) remains essential for protecting drilling equipment and minimizing cost and energy losses during drilling operations. However, many conventional corrosion inhibitors raise concerns related to sustainability and chemical burden, creating a need for effective bio-based alternatives that can function under high-temperature WBM conditions. Here, soda lignin (SL) was polymerized with acrylamide (AA) to produce a lignin–acrylamide composite (LAA) with improved solubility for use as a corrosion inhibitor (CI) additive in WBM. LAA yield was optimized using two complementary statistical approaches, namely the Taguchi method and response surface methodology (RSM) based on a central composite design (CCD). Taguchi analysis ranked the influence of factors as temperature > reaction time > AA ratio > catalyst concentration and predicted a maximum yield of 4.893 g, while CCD–RSM provided refined optimization through ANOVA and predicted a maximum yield of 4.653 g. Both models converged on a consistent optimum region near 90 °C, about 4 h, and AA:SL around 2. The novelty of this study lies in the direct comparison of Taguchi and CCD-RSM optimization coupled with drilling-fluid-relevant validation. The optimized LAA achieved a maximum corrosion inhibition efficiency of 73.5% at 500 ppm in carbon steel weight-loss testing after WBM aging at 90 °C for 16 h under API-type conditions.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926475","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}
Polymer BulletinPub Date : 2026-09-03DOI: 10.1007/s00289-026-06677-y
Maamon A. Farea, N. Yusof, Mohammad N. Murshed, Hamed Y. Mohammed, A. Al Ojeery, Doaa Abdelhameed, Ahmad Ashrif A. Bakar
{"title":"Publisher Correction: Rapid and sensitive carbon monoxide detection using novel SnO2/PEDOT-PSS nanocomposite gas sensors","authors":"Maamon A. Farea, N. Yusof, Mohammad N. Murshed, Hamed Y. Mohammed, A. Al Ojeery, Doaa Abdelhameed, Ahmad Ashrif A. Bakar","doi":"10.1007/s00289-026-06677-y","DOIUrl":"10.1007/s00289-026-06677-y","url":null,"abstract":"","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926474","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, characterization, and assessment of the antimicrobial activity of ZnO/borneol-based polymer composites","authors":"Wen-Qiang Shi, Xiao-Rui Liu, Ting-Ting Zhao, Bo-Jiang Chen, Jia-hui Jin, Xunshan Liu, Yong-Miao Shen","doi":"10.1007/s00289-026-06678-x","DOIUrl":"10.1007/s00289-026-06678-x","url":null,"abstract":"<div><p>Using a borneol-based polymer as a supporting material, a straightforward method was adopted to prepare a series of ZnO/borneol-based polymer composite materials with varying sizes. The FTIR, XRD, TGA, SEM, contact angle goniometer, and TEM techniques were employed to characterize the composites. Successful dispersion of nano-ZnO on the uniform surface of the borneol-based polymer was demonstrated by the XRD patterns, as well as the XPS survey scan. In addition, the introduction of nano-ZnO onto the borneol-based polymer showed significant improvement of the antimicrobial properties of the composites. The 2–8 nm ZnO QDs composite displayed the best antibacterial performance with broad-spectrum that against B. subtilis (> 99%), P. aeruginosa (98.38%), C. albicans (87.83%), and A.niger (> 99%), which is comparable to a commercialized standard Norfloxacin, demonstrating great promise as effective antibacterial agents.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148926452","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}
Polymer BulletinPub Date : 2026-08-31DOI: 10.1007/s00289-026-06679-w
Abdulaal Zuhayr Al-Khazaal, Mahmoud G. A. Saleh, Amal. F. Abd El-Gawad, S. A. Fayek, Foziah F. Al-Fawzan, Basmah H. Allehyani, A. I. Sharshir
{"title":"Studying the Electrical properties of PVA reinforced by in situ Calcium Manganese oxide nanocomposite for flexible electronic devices","authors":"Abdulaal Zuhayr Al-Khazaal, Mahmoud G. A. Saleh, Amal. F. Abd El-Gawad, S. A. Fayek, Foziah F. Al-Fawzan, Basmah H. Allehyani, A. I. Sharshir","doi":"10.1007/s00289-026-06679-w","DOIUrl":"10.1007/s00289-026-06679-w","url":null,"abstract":"<div><p>The novelty of integrating calcium manganite (CaMnO₃, a transition-metal perovskite) into a polyvinyl alcohol (PVA) polymer matrix lies in its ability to transform an insulating polymer into a highly tunable, flexible dielectric material with a narrow, tailorable optical band gap and pronounced nonlinear optical susceptibility for advanced optoelectronics. To identify CaMnO<sub>3</sub>-doped PVA polymer materials as superior capacitive elements, their structural characteristics, surface morphology, grain arrangement, surface texture, and frequency-dependent electrical properties have been evaluated. The materials were synthesized using the casting approach. An X-ray diffraction study indicates an orthorhombic perovskite structure with a Pnma space group. Polycrystalline grains with an average diameter of 0.3 μm, exhibiting a regularly oriented grain structure and alignments as depicted in the polar histogram, can be detected via SEM topography. Complex impedance spectroscopy has been utilized to reveal resistance (related to grain boundaries), semiconducting characteristics (attributable to short-range charge carrier hopping), various conduction mechanisms via the Arrhenius equation, the electric modulus spectrum (approaching zero as the movement of charge is limited under a constant electric field), and frequency-dependent relaxation. The material with low CaMnO<sub>3</sub> concentration has been shown to be suitable for innovative mining device applications, as evidenced by scientific studies of high-frequency dielectric permittivity and low dielectric loss at elevated frequencies, indicating minimal energy dissipation.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148927967","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}
Polymer BulletinPub Date : 2026-08-30DOI: 10.1007/s00289-026-06675-0
Yuanwen Liu, Jianlei Qi, Zheng Pan, Yu Qiao, Lei Dong, Jianyu Wu, Yanping Wang
{"title":"Influences of stress amplitude and stress loading rate on the ratcheting response of nitrile rubber: experimental and numerical modeling","authors":"Yuanwen Liu, Jianlei Qi, Zheng Pan, Yu Qiao, Lei Dong, Jianyu Wu, Yanping Wang","doi":"10.1007/s00289-026-06675-0","DOIUrl":"10.1007/s00289-026-06675-0","url":null,"abstract":"<div><p>The ratcheting effect caused by dynamic loading can cause excessive plastic deformation of nitrile rubber (NBR), reducing the performance of rubber products. Hence, research on how loading level affects the NBR ratcheting effect is necessary to improve rubber service life. This work examines the impact of mean stress, stress amplitude, loading rate, and loading history on the NBR ratcheting effect. Within the tested parameter range, the stress amplitude and stress loading rate were discovered to have a major effect on the rubber ratcheting strain, with the mean stress having a more significant effect on ratcheting behavior when the peak stress is the same or when the loading sequence is considered. In the study of the evolutionary law of ratcheting behavior in rubber materials, it was found that because the metal ratcheting model does not apply to large deformation materials, the introduction of a deformation correction parameter, denoted as γ, has enhanced the applicability of the metal ratcheting model, and facilitated the successful fitting of NBR’s ratcheting effect under the regulation of mean stress. Thus, this work proposes a phenomenological modeling framework that effectively captures the ratcheting evolution of NBR under the studied conditions, which could inform future analysis of highly elastic materials.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148928051","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}
Polymer BulletinPub Date : 2026-08-29DOI: 10.1007/s00289-026-06669-y
Rahul, Rajeev Jindal
{"title":"pH-Responsive carboxymethyl cellulose-pullulan/montmorillonite composite adsorbent for the removal of methylene blue and safranin-O from aqueous solution","authors":"Rahul, Rajeev Jindal","doi":"10.1007/s00289-026-06669-y","DOIUrl":"10.1007/s00289-026-06669-y","url":null,"abstract":"<div><p>The adsorption of dye pollutants from contaminated water using biopolymers remains a significant environmental challenge due to the poor structural stability and limited adsorption capacity. To address these limitations, a novel pH-responsive PA-CMC@MMT hydrogel was successfully synthesized via epichlorohydrin-mediated crosslinking of Pullulan (PA) and Carboxymethyl Cellulose (CMC) incorporated with Montmorillonite (MMT) under microwave-assisted conditions. The incorporation of MMT and chemical crosslinking significantly improved the structural integrity and functional performance of the hydrogel network. Key synthesis parameters, including microwave power, irradiation time, crosslinker, solvent volume, polymer ratio, montmorillonite content and pH, were systematically optimized to achieve the maximum swelling percentage. Various characterization techniques, including FTIR, XPS, XRD, SEM, TGA and EDX, were used to verify the successful formulation of the prepared hydrogels. Zeta potential measurements provided insight into the surface charge characteristics of the material. The adsorption performance of the hydrogel was evaluated using various dyes, and it shows maximum removal efficiencies of 96.17 ± 0.57% for Safranin-O at a contact time of 280 min and 92.24 ± 0.33% for Methylene Blue at a contact time of 210 min. The adsorption followed the Langmuir isotherm, indicating monolayer adsorption on a homogeneous surface, whereas the kinetics were best described by the pseudo-second-order model, suggesting chemisorption. The PA-CMC@MMT hydrogels demonstrated enhanced reusability over five successive cycles, making it an efficient and sustainable material for removing pollutants from wastewater.</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":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838318","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}
Polymer BulletinPub Date : 2026-08-28DOI: 10.1007/s00289-026-06665-2
M. Nanthini, R. Ganesan, Joseph Raj Xavier
{"title":"Retraction Note: Experimental and theoretical investigation of the influence of graphene oxide/nanozirconia on the mechanical and durability properties of geopolymer concrete","authors":"M. Nanthini, R. Ganesan, Joseph Raj Xavier","doi":"10.1007/s00289-026-06665-2","DOIUrl":"10.1007/s00289-026-06665-2","url":null,"abstract":"","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838225","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}
Polymer BulletinPub Date : 2026-08-28DOI: 10.1007/s00289-026-06676-z
Aasia Farrukh, Muhammad Arslan, Ammarah Batool, Ahmed Usman Yasir, Muhammad Zubair Farrukh, Tahoor Qadeer
{"title":"A review of PBS based green composites reinforced with organic and biodegradable materials","authors":"Aasia Farrukh, Muhammad Arslan, Ammarah Batool, Ahmed Usman Yasir, Muhammad Zubair Farrukh, Tahoor Qadeer","doi":"10.1007/s00289-026-06676-z","DOIUrl":"10.1007/s00289-026-06676-z","url":null,"abstract":"<div><p>Poly butylene succinate (PBS) is an emerging biodegradable polyester that can be synthesized from both petroleum-derived and renewable feedstocks. Due to its excellent processability, biodegradability, and balanced mechanical properties, PBS has attracted considerable attention as a sustainable alternative to conventional petroleum-based polymers. However, the relatively low stiffness, limited thermal resistance, and moderate mechanical strength of neat PBS restrict its wider industrial applications. To overcome these limitations, PBS is frequently reinforced with natural fibers, agricultural residues, and other biodegradable fillers to produce environmentally friendly green composites. This review comprehensively summarizes recent developments in PBS-based biocomposites reinforced with organic and biodegradable materials such as natural fibers, wood flour, fruit pomace, nutshell powder, agricultural residues, and thermoplastic starch. The synthesis routes of PBS, its fundamental mechanical, thermal, and morphological properties, and various fabrication techniques for PBS composites are first discussed. Subsequently, the effects of different natural reinforcements on the structural, mechanical, and thermal performance of PBS composites are critically analyzed. Emphasis is placed on interfacial compatibility, filler dispersion, and the role of compatibilizers in improving fiber–matrix adhesion. The reviewed studies indicate that natural reinforcements can enhance the stiffness and hardness of PBS composites, although their effects on thermal stability vary, and excessive filler loading may reduce ductility and impact resistance. In addition, bio-based waste and residues such as rice husk, cassava pulp, wood flour, and fruit pomace show strong potential as sustainable fillers for producing low-cost biodegradable composites. The potential applications of PBS-based biocomposites in packaging, automotive components, agriculture, and biomedical materials are also discussed. Overall, PBS-based green composites represent a promising class of sustainable materials capable of reducing dependence on fossil-based plastics while enabling the valorization of agricultural and bio-waste resources. Future research should focus on improving interfacial compatibility, optimizing processing conditions, and evaluating long-term degradation behavior to facilitate large-scale industrial adoption.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"83 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148838226","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}