Maryem Oubella, Sana Ben Jadi, Khadija Bahend, Mina El Fazdoune, El Arbi Bazzaoui, José Inácio Martins, Rongguang Wang, Mohammed Bazzaoui
{"title":"Enhancing polymethyl methacrylate (PMMA) surfaces: Taguchi optimization of PPy coating synthesis and surface modification strategies","authors":"Maryem Oubella, Sana Ben Jadi, Khadija Bahend, Mina El Fazdoune, El Arbi Bazzaoui, José Inácio Martins, Rongguang Wang, Mohammed Bazzaoui","doi":"10.1007/s10965-025-04275-6","DOIUrl":"10.1007/s10965-025-04275-6","url":null,"abstract":"<div><p>Polymethyl methacrylate (PMMA) is commonly used in many industries because of its lightweight and optical clarity. However, its weak adhesion properties and low electrical conductivity limit its use in advanced electronic and functional devices. This study introduces a new method to overcome these issues by using both mechanical sanding and chemical etching, combined with the deposition of polypyrrole (PPy) coatings on PMMA surface (PPy/PMMA). This method is being applied to PMMA substrates for the first time, making this work distinct from previous studies. Sanding enhances surface roughness of PMMA surface by creating micro-scale features that improve adhesion, as shown by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Meanwhile, chemical etching with piranha solution (H<sub>2</sub>O<sub>2</sub>/H<sub>2</sub>SO<sub>4</sub>) introduces functional groups on PMMA surface, which improve wettability and bonding with PPy. This enhancement is confirmed by X-ray photoelectron spectroscopy (XPS), contact angle measurements, and adhesion tests. On the other hand, this study optimized the synthesis of PPy using Taguchi design, showing the pyrrole concentration as a critical factor for achieving high PPy yield. Additionally, various methods were explored to increase the electrical conductivity of PPy/PMMA coatings. Dodecyl sulfate as doping anions (DS/PPy/PMMA) and silver particles incorporated into the PPy backbone (Ag/PPy/PMMA) were synthesized by electrochemical and chemical techniques, respectively. These changes resulted in notable improvements in both conductivity and Raman scattering characteristics of the PPy coatings. This efficient and scalable approach addresses important challenges in PMMA surface modification, increasing its suitability for advanced electronic and functional applications.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04275-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rabeya Akter, Md. Monarul Islam, Md. Wahidul Islam, Taslima Akter, Trisha Paul, Mohammad Mahbubur Rahman, Md. Tushar Uddin, Shofiur Rahman, Abdullah N. Alodhayb, Paris E. Georghiou
{"title":"Extraction procedure and theoretical studies of chitin from black soldier fly","authors":"Rabeya Akter, Md. Monarul Islam, Md. Wahidul Islam, Taslima Akter, Trisha Paul, Mohammad Mahbubur Rahman, Md. Tushar Uddin, Shofiur Rahman, Abdullah N. Alodhayb, Paris E. Georghiou","doi":"10.1007/s10965-025-04276-5","DOIUrl":"10.1007/s10965-025-04276-5","url":null,"abstract":"<div><p>The black soldier fly (BSF) is an efficient converter of residual biomasses into valuable product molecules and biomolecules. It has attained significant consideration for sustainable resource recovery and waste management. Chitin was extracted, isolated and purified from BSF (Yield 15%) and was characterized using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Two fractions were obtained by sieving and the 100-mesh sample showed a crystallinity index of 9.32% which indicates that this BSF chitin sample falls into the amorphous category. Thermogravimetric analysis (TGA) evaluated chitin's thermal properties, scanning electron microscopy (SEM) examined its surface morphologies, and energy-dispersive X-ray spectroscopy (EDX) performed elemental analysis. Moreover, density functional theory (DFT) calculations were conducted to investigate the molecular geometry and infrared vibrational properties of <i>N</i>-acetyl-D-glucosamine monomer and its conceptual dimeric and trimeric chitin sub-units.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04276-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yunsheng Chong, Jinming Liu, Jingchen Chu, Liyan Wang, Yanming Chen, Qing Liu, Hao Meng, Jin Bai
{"title":"Preparation of maleic anhydride/methyl methacrylate double monomer grafted poe and its effect on the properties of pa610 alloys","authors":"Yunsheng Chong, Jinming Liu, Jingchen Chu, Liyan Wang, Yanming Chen, Qing Liu, Hao Meng, Jin Bai","doi":"10.1007/s10965-025-04277-4","DOIUrl":"10.1007/s10965-025-04277-4","url":null,"abstract":"<div><p>Two monomers, maleic anhydride (MA) and methyl methacrylate (MM), were used with ethylene-octene copolymer elastomer (POE) to prepare a highly efficient toughening agent (POE-g-MA/MM) by melt grafting method in a twin-screw extruder, which had a relative grafting rate of 0.93%. Then, a series of PA610 alloys with different contents of POE-g-MA/MM were prepared by melt blending of POE-g-MA/MM and PA610 (PA610/POE-g-MA/MM), and their microstructure, mechanical properties, molding shrinkage, water absorption and thermal properties were studied. The results showed that the SEM photos of the alloys obvious 'sea-island' structure, the interfacial compatibility between the two phases was good, and the phase domain size was 0.15–0.35 μm. When the content of POE-g-MA/MM was 20%, the room-temperature impact strength and low-temperature impact strength of the alloys were 78.9 kJ/m<sup>2</sup> and 72.6 kJ/m<sup>2</sup>, which were increased by 13.15 and 14.81 times, respectively. Even though the strength decreased slightly, the retention rate was still higher than 66.5%. The water absorption rate was 1.18%, which was reduced by 42.4%, and the molding shrinkage rate increased slightly. Moreover, the hot deformation temperature was slightly reduced, and the retention rate could reach 93.5%. The research work of this paper improves the added value of PA610 products, broadens its application fields, and provides a reference for subsequent toughening modification research and industrialization.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110166","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}
{"title":"In-situ reaction compatibilization modification of biodegradable poly (lactic acid)/poly (3-hydroxybutyrate-co-4-hydroxy-butyrate) blends by multifunctional epoxy compound","authors":"Chuang Sun, Liang Ren, Yixuan Qin, Xiangpeng Liu, Mingliang Shao, Guangming Mu, Yutong Gao, Mingyao Zhang","doi":"10.1007/s10965-025-04270-x","DOIUrl":"10.1007/s10965-025-04270-x","url":null,"abstract":"<div><p>Thanks to their remarkable combination of good strength and high modulus, Poly (lactic acid) (PLA) is mixed with P34HB to enhance its strength, and the chain extender ADR-4370F is selected to modify PLA/P34HB blend via in-situ reaction compatibilization. The incorporation of 0.7 phr ADR into the 70/30 wt% PLA/P34HB blend results in a significant increase of 60%, 20% and 22% in Izod impact strength, tensile strength and modulus, respectively, compared with the 70/30 wt% PLA/P34HB blend. Rheological results demonstrate that storage modulus, loss modulus, and complex viscosity enhance evidently with the elevation of ADR dosage, indicating that the improvement of melt strength is beneficial to the processing and forming of the materials. The compatibilization mechanism is investigated by infrared spectroscopy, and the epoxy groups in ADR is the most important factor to improve the compatibility and the mechanical properties of the blends.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04270-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yue Cheng, Tao Ai, Huang Pang, Ying Liu, kaiJie Liu
{"title":"Preparation and properties of retarded cellulose-based polycarboxylic superplasticizers","authors":"Yue Cheng, Tao Ai, Huang Pang, Ying Liu, kaiJie Liu","doi":"10.1007/s10965-025-04271-w","DOIUrl":"10.1007/s10965-025-04271-w","url":null,"abstract":"<div><p>The use of biomaterials instead of petrochemical materials is a direction for the development of green chemical industry. This study adopts sustainable cellulose materials, as an alternative to Polyhydroxyl compound, and modifies it by hydrolysis and grafting of functional monomers, and then prepares green retarding cellulose-based polycarboxylic acid water reducing agent (CBPCS) with monomers such as AA and TPEG-2400 through aqueous solution free-radical polymerization reaction and discusses its performance and role. We also investigated the performance and mechanism of CBPCS. It was found that CBPCS could improve the cement hydrate strength in addition to its good slow-release and water-reducing properties. Adding 0.5% of this water reducing agent to cement, the water reduction rate reached 28.3%, the setting time was prolonged by 69 min, and the compressive and flexural strengths of cementitious sand at 3d, 7d and 28d were improved compared with that of unadulterated water reducing agent. XRD and SEM analyses also showed that CBPCS suppressed the hydration of C<sub>3</sub>S, which confirmed its retardation property. In this study, the hydrolyzed cellulose greatly solved the problems of its poor water solubility and application limitations, and providing a low-cost and sustainable raw material for the development of green concrete water reducing agents in the future.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04271-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of a constitutive law for the prediction of the mechanical behavior of WEEE recycled polymer blends","authors":"Anissa Eddhahak, Alain Gaudy","doi":"10.1007/s10965-025-04272-9","DOIUrl":"10.1007/s10965-025-04272-9","url":null,"abstract":"<div><p>This research focuses on a mechanical study of an acrylonitrile–butadiene–styrene (ABS)/ polycarbonate (PC) blend totally derived from Waste Electrical and Electronic Equipment (WEEE) recycling. First, an experimental work was developed in laboratory for the preparation of different mixtures of ABS/PC blend. Then, mechanical tensile tests were performed on the injected specimens and the stress/strain experimental data were gathered to be used in the modelling part. In order to enable the prediction of the mechanical response of the blend, G’Sell and Jonas constitutive law was considered for this purpose. An optimization method based on the Generalized Reduced Gradient (GRG) nonlinear algorithm was developed to identify the input parameters governing the mechanical model. In addition, an uncertainty parametric study was assessed to qualitatively and quantitatively evaluate the constitutive law sensitivity versus the parameter uncertainty. Monte Carlo simulations were performed and the convergence of the numerical model was proved in terms of means and standard deviation statistical data. The results showed an excellent agreement between the numerical approach and the experiments. Besides, it was highlighted the crucial role of coupling uncertainty parametric study with modelling for accurately describing the mechanical behavior of the blend.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04272-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Dynamic ester bond cross-linking network based on isomannitol","authors":"Yanna Zhao, Yuqi Wang, Ting Zhang, Xiaowei Bai, Yingying Zhang","doi":"10.1007/s10965-025-04255-w","DOIUrl":"10.1007/s10965-025-04255-w","url":null,"abstract":"<div><p>This paper presents the development of recyclable and repairable dynamic ester cross-linked network bio-based Vitrimer (IMT-PER-COO). Pentaerythritol (PER) is used as the crosslinking agent in IMT-PER-COO to form a topological network through hydroxyl groups in PER and isocyanate groups in 1,6-hexamethylene diisocyanate (HDI). At 150 ℃, the carbamate bond is simultaneously broken and associated, and the topological network is remapped to achieve the goal of material self-repair. The results showed that the successful synthesis of IMT-PER-COO was confirmed by FTIR, XRD and XPS. The DMA test confirmed the movement of the polymer chain segment at high temperature. In addition, with the increase of PER content, the glass transition temperature (Tg) of the material increased, and the thermal stability and mechanical properties were improved. The repairability of the IMT-PER-COO material has also been confirmed. This technology introduces bio-based IMT into the covalent adaptive network, which has great potential for the further development of environmentally friendly materials.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04255-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of itaconic acid and ammonium itaconic acid on cyclization and thermal stabilization of narrow polydispersity polyacrylonitrile terpolymers synthesized in continuous flow","authors":"Chaoying Wang, Zhong Xin","doi":"10.1007/s10965-025-04267-6","DOIUrl":"10.1007/s10965-025-04267-6","url":null,"abstract":"<div><p>In this work, polyacrylonitrile (PAN) homopolymer, poly(acrylonitrile-methyl acrylate)[P(AN-MA)], poly(acrylonitrile-methyl acrylate-itaconic acid)[P(AN-MA-IA)] and poly(acrylonitrile-methyl acrylate-ammonium itaconic acid)[P(AN-MA-AIA)] with narrow polydispersity were successfully produced in continuous flow. The compositions, molecular weights, molecular weight distributions and crystalline structures of these PAN polymers were measured and the influence of IA and AIA on cyclization reactions, structural transformation and thermal stability during the stabilization process was also explored. The incorporation of IA and AIA into polymer chains reduces the initial temperatures of cyclization reactions, broadens the exothermic peaks, eases the concentrated heat through an ionic mechanism and exhibits better stabilization at lower temperatures. Furthermore, AIA effectively promotes dehydrogenation reaction. Among these four PAN polymers, P(AN-MA-AIA) terpolymer presents the best stabilization since COO<sup>−</sup>NH<sub>4</sub><sup>+</sup> has the strongest nucleophilicity towards nitrile groups that are close to carbon atoms.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109633","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}
{"title":"Microstructure-property relationships in piezoelectric-polymer composites: a review","authors":"Zhihao Chen, Fulin Chen, Zinan Tu, Qichang Jiang, Yuanqing Wang, Xinyu Liu, Su Sheng","doi":"10.1007/s10965-025-04264-9","DOIUrl":"10.1007/s10965-025-04264-9","url":null,"abstract":"<div><p>Piezoelectric-polymer composites, which integrate piezoelectric ceramic phases with elastic polymer matrices, have emerged as promising materials for applications in smart structures, particularly as sensors and actuators. Their appeal stems from attributes such as low density, high flexibility, robust plasticity, and straightforward performance tunability. The microstructure of these composites, intricately influenced by processing conditions, comprises diverse phases and components with varying compositions and architectures. To harness their full potential, it is imperative to control the evolution of their microstructures and unravel the complex interplay between their structure and properties. This paper reviews key micromechanical models that elucidate the microstructure-property relationship in piezoelectric-polymer composites. Furthermore, it delves into interface theories that explore the influence of surface and interface effects on heterogeneous nanostructured materials. The article also outlines methods for interface design in composite systems, tailored to various filler types and morphologies. Lastly, strategies are proposed to uncover the local structure–property correlations at the interface of piezoelectric-polymer nanocomposites, thereby advancing our comprehension of these advanced materials.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109210","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}
Hind Bennis, Rabiaa Elkori, Abdelilah Hachim, Khalid El Had, Anas El Maliki, Sara Sandabad
{"title":"Determining the impact of accelerated hydrothermal aging on the mechanical properties of polyvinyl chloride and chlorinated polyvinyl chloride","authors":"Hind Bennis, Rabiaa Elkori, Abdelilah Hachim, Khalid El Had, Anas El Maliki, Sara Sandabad","doi":"10.1007/s10965-025-04266-7","DOIUrl":"10.1007/s10965-025-04266-7","url":null,"abstract":"<p>In this work, chlorinated polyvinyl chloride (CPVC) and polyvinyl chloride (PVC) pipes underwent accelerated hydrothermal aging at various temperatures to simulate long-term environmental exposure. The research aimed to investigate how these conditions affect the degradation of CPVC and PVC materials over time. Through meticulous observation and rigorous tensile testing, the study evaluated the decline in mechanical properties such as tensile strength and flexibility. The data obtained from these experiments were pivotal in formulating a novel static damage law specifically tailored for CPVC and PVC. This analytical framework was crucial for quantifying the extent of material degradation and predicting their fractional lifetimes under accelerated aging conditions. The findings underscored a significant deterioration in the mechanical integrity of both CPVC and PVC, highlighting the effectiveness of static damage calculations in assessing polymer durability. This research contributes valuable insights into understanding the long-term performance and reliability of CPVC and PVC materials under adverse environmental conditions.</p>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143109226","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}