Reactive & Functional Polymers最新文献

{"title":"Preparation of ZIF-8 modified PAN/PU superhydrophobic-superoleophilic composite nanofiber membranes for oil/water separation and dye adsorption","authors":"Shaokang Fang,&nbsp;Yanan Li,&nbsp;Huizi Yu,&nbsp;Huirong Li,&nbsp;Shida Feng,&nbsp;Shuai Wang,&nbsp;Xiaoyu Chen,&nbsp;Jintong Li,&nbsp;Yushan Yuan,&nbsp;Xue Wang,&nbsp;Yue Yu,&nbsp;Hong Zhang","doi":"10.1016/j.reactfunctpolym.2025.106160","DOIUrl":"10.1016/j.reactfunctpolym.2025.106160","url":null,"abstract":"<div><div>It is still a great challenge to treat oily wastewater and organic dyes in a complex and variable water environment. In this study, polyacrylonitrile (PAN)/polyurethane (PU) was modified by the synthesis of porous nano-zeolite imidazolium skeleton (ZIF-8), and PAN/PU@ZIF-8 composite nanofiber membranes with high hydrophobicity were prepared by electrospinning technology. After the synergistic effect of ZIF-8 and PU, the prepared fibrous membranes showed excellent superhydrophobic properties with a contact angle of 150.5° to water in air. The prepared PAN/PU@ZIF-8 composite nanofiber membranes showed good separation effects on different oil/water mixtures and water-in-oil (W/O) emulsions, with oil fluxes of up to 6391.01 L·m⁻²·h⁻¹ for different oil/water mixtures and the separation efficiencies were all above 99.15 %. Meanwhile, the separation fluxes of several different W/O emulsions were up to 943.47 L·m⁻²·h⁻¹, and the separation efficiencies were all above 98.6 %. Not only that, the PAN/PU@ZIF-8 composite nanofiber membrane possessed good adsorption effect on common organic dyes such as rhodamine B (RhB) and methylene blue (MB), and the maximum adsorption amount was up to 93.80 mg/g. Meanwhile, the removal of MB and RhB by the prepared nanofiber membrane was 96.84 % and 83.66 % within 3 h, respectively. In conclusion, we prepared a ZIF-8 doped superhydrophobic PAN/PU@ZIF-8 composite nanofiber membrane by electrospinning technology, which is capable of separating W/O emulsions. It is capable of separating W/O emulsion and adsorbing organic dyes at the same time, which provides a new vision and direction for the treatment of oily wastewater and organic dyes in the complex and variable water environment.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"209 ","pages":"Article 106160"},"PeriodicalIF":4.5,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143166189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of a chitosan derivative via conjugate addition-elimination with diethylethoxymethylenemalonate and its physicochemical properties","authors":"Samir Leite Mathias ,&nbsp;Robson Valentim Pereira ,&nbsp;Aparecido Junior de Menezes ,&nbsp;Alain Dufresne","doi":"10.1016/j.reactfunctpolym.2025.106167","DOIUrl":"10.1016/j.reactfunctpolym.2025.106167","url":null,"abstract":"<div><div>Chitin, the second most abundant natural polymer after cellulose, is mainly sourced from fungal waste and crustacean exoskeletons. It can be deacetylated to yield chitosan, a biocompatible and renewable material with versatile applications due to its reactive amino groups, allowing modifications like the one presented here, namely the synthesis of a novel chitosan derivative (ChDEEM) through a conjugate addition-elimination reaction with diethylethoxymethylenemalonate (DEEM). The reaction was conducted under various conditions to optimize the degree of substitution (DS) of the chitosan derivative (ChDEEM). Stoichiometry (1:1.5, 1:1.75, 1:2 Ch:DEEM), temperature (60, 70, and 80 °C), and reaction time (1, 2, and 3 h) were varied. ChDEEM was characterized by a range of techniques including Fourier Transform Infrared Spectroscopy (FTIR), Carbon-13 Nuclear Magnetic Resonance (¹³C NMR), Thermogravimetric analysis (TGA), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Zeta Potential, Contact Angle (CA) and Elemental Analysis (EA). FTIR confirmed the successful modification, with a sharp peak at 805 cm⁻¹ corresponding to the C<img>C bond stretch. ¹³C NMR analysis showed new chemical shifts (158, 166, 87 and 11 ppm), and in combination with EA, was used to estimate the degree of substitution (DS) as 0.225 and 0.291, respectively. While SEM revealed no significant morphological changes, TGA indicated a decrease in thermal stability and Zeta Potential suggested reduced colloidal stability. Conversely, contact angle measurements showed increased hydrophobicity and decreased surface energy. Finally, XRD analysis revealed a decrease in the crystallinity index (from 79 % to 38 %) of ChDEEM compared to chitosan, likely due to the incorporation of methylenemalonate groups.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106167"},"PeriodicalIF":4.5,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HASc-responsive dual-drug nano-particles for co-delivery of Pt(II) and BAI for combination therapy of tumors","authors":"Yifan Zhao ,&nbsp;Tong Qiu ,&nbsp;Chige Zhuang ,&nbsp;Dan Li ,&nbsp;Zimin Wan ,&nbsp;Hua Zheng ,&nbsp;Xueqiong Zhang","doi":"10.1016/j.reactfunctpolym.2025.106165","DOIUrl":"10.1016/j.reactfunctpolym.2025.106165","url":null,"abstract":"<div><div>In this study, ascorbic acid (HASc)-responsive nano-particles were designed to co-deliver the ferroptosis inducer Baicalin (BAI) and the chemotherapeutic drug cisplatin (Pt(II)) to tumor sites, aiming for a synergistic effect of chemotherapy(CT) and ferroptosis. Using CMCS as the carrier, the small-molecule pro-drug cis-Pt(IV)-COOH was grafted onto the carrier to create an amphiphilic polymer pro-drug. Single-drug nano-particles M(Pt) and dual-drug nano-particles M(BAI/Pt) were obtained by ultrasonically self-assembling BAI encapsulated in hydrophobic cores. The M(BAI/Pt) exhibited an average diameter of 211.37 <span><math><mo>±</mo></math></span> 3.01 nm, a polydispersity index (PDI) of 0.196 <span><math><mo>±</mo></math></span> 0.015, and a surface charge of −14.93 <span><math><mo>±</mo></math></span> 0.72 mV, demonstrating excellent stability. Given that cis-Pt(IV)-COOH is sensitive to HASc, the nanoparticles could quickly release Pt(II) with 83.22 % efficiency in simulated tumor cells. Meanwhile, the nanoparticles disintegrated and released BAI with 84.35 % efficiency as well. BAI can induce the accumulation of lipid peroxides by down-regulating GPX4, while Pt(II) contributes to iron ion accumulation. The combined treatment strategy aims to achieve an effective synergistic approach between chemotherapy and ferroptosis. <em>In vitro</em> toxicity studies indicated that the M(BAI/Pt₁_–₁) exhibited significant cytotoxicity, synergistic impact (CI = 0.94) and strong selectivity (SI = 1.60) against 4 T1 cells. Mitochondrial membrane potential assessments and intracellular ROS and MDA analyses indicated that the M(BAI/Pt₁_–₁) generated substantial ROS, causing mitochondrial structural damage and lipid peroxidation in 4 T1 cells. The M(BAI/Pt₁_–₁) induced ferroptosis in 4 T1 cells by downregulating GPX4 expression and decreasing GSH levels, ultimately inhibiting <em>in vitro</em> tumor cell proliferation effectively. Consequently, these nano-particles provide fresh strategy to cancer treatment by combining chemotherapy with ferroptosis.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106165"},"PeriodicalIF":4.5,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and application of ion-imprinted chelating polymer for selective adsorption of silver ion","authors":"Majed S. Aljohani ,&nbsp;Rua B. Alnoman ,&nbsp;Hussam Y. Alharbi ,&nbsp;M. Monier ,&nbsp;Ibrahim Youssef","doi":"10.1016/j.reactfunctpolym.2025.106162","DOIUrl":"10.1016/j.reactfunctpolym.2025.106162","url":null,"abstract":"<div><div>A polymeric sorbent material that could selectively capture silver ions (Ag⁺) from aqueous solution was prepared by an ion-imprinting method. First, maleimide-pyridyl-thiosemicarbazide (MATCH), a chelating ligand with a polymerizable maleimide moiety, was synthesized by reacting 1-amino-1H-pyrrole-2,5-dione with 2-pyridyl isothiocyanate. The complex of Ag⁺/MATCH ([Ag(MATCH)(H₂O)₂]) was incorporated into a free radical polymerization with styrene-divinylbenzene to produce an Ag-imprinted polymeric adsorbent (Ag-IIP). The Ag-IIP showed high selectivity for Ag⁺ over Hg²⁺, Cd²⁺, Cu²⁺, Pb²⁺, and Zn²⁺ after acidified thiourea chemical elution. The maximum uptake capacity reached 296 ± 1 mg/g. The adsorption behavior followed the Sips isotherm and pseudo-second-order kinetics, confirming a chemisorption mechanism. The Ag-IIP was further tested on real wastewater from Ag<img>Zn batteries and achieved an impressively high Ag⁺ removal efficiency of 97 %, far outstripping the uptake of Zn²⁺. Superior selectivity results from the ability of imprinted binding sites for strong Ag<img>S and Ag<img>N coordination. Conversely, the non-imprinted polymer or NIP has much lower efficiencies of removal simply because there are no specified binding sites for the analytes.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106162"},"PeriodicalIF":4.5,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digital light processing 3D printing of molecularly imprinted polymers for antibiotic removal","authors":"Elena Camilli ,&nbsp;Valentina Bertana ,&nbsp;Francesca Frascella ,&nbsp;Matteo Cocuzza ,&nbsp;Simone Luigi Marasso ,&nbsp;Ignazio Roppolo","doi":"10.1016/j.reactfunctpolym.2025.106164","DOIUrl":"10.1016/j.reactfunctpolym.2025.106164","url":null,"abstract":"<div><div>Molecularly Imprinted Polymers (MIPs) as artificial receptors have received considerable scientific attention in the past few decades, as material for biomimetic molecular recognition. This paper explores the fabrication of MIPs by Additive Manufacturing (AM), which appears mostly as an unexplored field. Specifically Digital Light Processing (DLP) technology was employed to fabricate 3D-printed MIPs, imprinted with Oxytetracycline (OTC), a widespread antibiotic, whose presence in food and water must be controlled. The optimized MIP formulation also includes Methacrylic Acid as the functional monomer, Dipropylene Glycol Diacrylate as the crosslinker, and Dimethyl Sulfoxide as the solvent. The study demonstrates the recognition properties of the printed MIPs, showing enhanced binding performance with higher concentrations of the target molecule. The results underscore the potential of 3D-printed MIPs for a multitude of applications, including biomedical and environmental monitoring.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106164"},"PeriodicalIF":4.5,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of size-controlled poly(vinyldiaminotriazine) nanoparticles for enhanced hydrogen bonding adsorption of horseradish peroxidase","authors":"Xiaotao Wang ,&nbsp;Chuan Xu ,&nbsp;Feiyang Xiao ,&nbsp;Xiangning Yan ,&nbsp;Chak-Yin Tang ,&nbsp;Huiling Guo ,&nbsp;Wing-Cheung Law","doi":"10.1016/j.reactfunctpolym.2025.106156","DOIUrl":"10.1016/j.reactfunctpolym.2025.106156","url":null,"abstract":"<div><div>Physically adsorbing proteins through functional polymeric nanoparticles hold great potential for a variety of applications. Achieving strong and stable adsorption via hydrogen bonding in aqueous phases is challenging due to the interference from water molecules. The monomer 2-vinyl-4,6-diamino-1,3,5-triazine (VDAT) not only provides donor and receptor sites for hydrogen bonding but also possesses an apolar nature that can help prevent water molecules from interfering with these bonding sites. In this work, poly(vinyldiaminotriazine) nanoparticles (PVDAT) with sizes ranging from approximately 50 nm to 240 nm were synthesized through semi-continuous precipitation polymerization in water. The formation mechanism of PVDAT, including particle nucleation and growth stages, was investigated. VDAT oligomers aggregated to form a core and subsequently grew by adsorbing additional VDAT oligomers. Adsorption studies of PVDAT on horseradish peroxidase (HRP) demonstrated stable physical adsorption facilitated by hydrogen bonding between PVDAT and the enzyme in the aqueous phase. The adsorption of HRP by PVDAT followed the Langmuir model of single-layer adsorption, with a maximum adsorption capacity of 13.80 mg/g and a retention of enzymatic activity of ∼74.99 %. This innovative approach aims to enhance the precision and efficacy of protein separation and extraction, as well as the efficiency of enzyme immobilization.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106156"},"PeriodicalIF":4.5,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paradoxical adhesion and polyethylene based plastic/plastic laminated composite improvement of polyphenols modified polyacrylate latex pressure-sensitive adhesives","authors":"Chunyuan Jiang ,&nbsp;Xinrui Zhang ,&nbsp;Xinyue Zhang ,&nbsp;Yudong Wang ,&nbsp;Zhizhong Ma ,&nbsp;Xingjian Li ,&nbsp;Yinwen Li","doi":"10.1016/j.reactfunctpolym.2025.106158","DOIUrl":"10.1016/j.reactfunctpolym.2025.106158","url":null,"abstract":"<div><div>Protective films are widely welcomed for its excellent flexibility, good foldability, and ease of use, etc. However, they are often accompanied with low adhesive performance, moreover, there are also a pressing critical issue about poor laminated composite efficiency for polyacrylate latex type pressure-sensitive adhesives (PSAs) especially in low surface energy polyethylene (PE) based plastic/plastic laminated composite process of protective films. Polyacrylate latex type PSAs were prepared by using glycidyl methacrylate (GMA) as functional comonomer, and then novel polyphenols modified polyacrylate latex PSAs (PPSAs) were further obtained by grafting dopamine (DOPA) with epoxy groups in PSAs structures. The effects of functional monomer dosages (GMA and DOPA) on the viscosity, particle size and distribution, adhesion, and water resistance of PPSAs were investigated. The results showed that, compared with traditional polyacrylate latex type PSAs, functional GMA monomer improved the crosslinking density and cohesion of PPSAs but also accompanied with negative impact on initial adhesion; Nevertheless, while by the further introduction of functional DOPA component with significant adhesive property also improved the initial and holding tack for PPSAs. Precisely because of the introduction of GMA and DOPA effectively realized the unity of the adhesive force and cohesive force of PPSAs, and thus when the amount of GMA and DOPA were 5.0 wt% and 0.5 wt%, PPSA₅ behaved with good stability, average particle size (196.4 nm) and distribution (PDI, 0.12), and best adhesive properties with initial tack (5.17 N/25 mm), 180° peel strength (6.62 N/25 mm) and holding power (&gt;72 h/25 mm). When PPSAs further used as laminated composite adhesives for plastic/plastic laminated composite of PE based protective films. The simulated PE based protective films and improved 180° peel strength measurement results showed PPSAs behaved with tremendously tearproof laminated composite efficiency which differed from traditional polyacrylate latex type PSAs, and just by utilizing the polyphenols and epoxy groups to form effective chemical bonding bridges with functional groups introduced by corona treatment at PE based plastic/plastic lamination interface, and synergistically improving the laminated composite efficiency of PPSAs. Thus, this work presents a highly promising and broad strategy for utilization of PPSAs as laminated composite adhesives in low surface energy plastic/plastic lamination field.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106158"},"PeriodicalIF":4.5,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facile fabrication and characterization of double network starch/PVA/NaCl composite hydrogel for flexible strain sensor","authors":"Yongzhu Zhou ,&nbsp;Zhenbang Xie ,&nbsp;Fuqi Wu ,&nbsp;Jilong Qin ,&nbsp;Xiaohan Zhang ,&nbsp;Jie Zhang ,&nbsp;Xiaosi Ma ,&nbsp;Lirong Fan ,&nbsp;Xi Wang ,&nbsp;Juanjuan Wang ,&nbsp;Tingfeng Tan ,&nbsp;Conghua Lu","doi":"10.1016/j.reactfunctpolym.2025.106163","DOIUrl":"10.1016/j.reactfunctpolym.2025.106163","url":null,"abstract":"<div><div>Starch-based conductive hydrogels are promising for flexible electronics due to their cost-effectiveness, renewability, biocompatibility, and degradability. Herein, dual crosslinked starch/poly(vinyl alcohol)/NaCl composite hydrogels with enhanced properties have been prepared by a facile two-step method involving blending and freezing-thawing cycle. The effects of NaCl on structures and properties of the composite hydrogel were systematically studied. The structural characterizations show that the addition of NaCl results in denser network structures by strengthening the hydrogen bonding and promoting the crystallization of the polymer chains. Moreover, thermal stability, mechanical and electrical performance of the composite hydrogel have been remarkably improved. The temperature of maximum weight loss rate of the hydrogel increases by up to 17.5 °C. At 2 % (w/w) NaCl content, the hydrogel reaches a maximum tensile strength of 2.9 MPa and a break elongation of 429.8 %, while also exhibiting the highest storage modulus of 22.4 kPa and loss modulus of 5.3 kPa. The incorporation of NaCl endows the composite hydrogel with high conductivity (up to 4.2 S/m), which has been demonstrated to work as a strain sensor with superior sensing performance (gauge factor is 1.7 at 0–100 % strain) to monitor diverse human activities precisely and reliably.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106163"},"PeriodicalIF":4.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of amino acid-derived silicones as durable and biocompatible antibacterial finishing agents for cotton fabric","authors":"Guanwu Yin ,&nbsp;Xiaoyue Yang ,&nbsp;Quanbo Xu ,&nbsp;Xiaofan Chen ,&nbsp;Haiyan Wang","doi":"10.1016/j.reactfunctpolym.2025.106157","DOIUrl":"10.1016/j.reactfunctpolym.2025.106157","url":null,"abstract":"<div><div>Antibacterial cotton fabric has attracted significant attention due to its widespread applications in clinical and medical supplies. However, many of these fabrics suffer from inadequate antibacterial durability and biocompatibility, which not only limit their practical application but also pose potential risks to human health. Herein, a series of aminoethylaminopropyl polydimethylsiloxane (AEAPS) with various amino acids were successfully synthesized, then the corresponding silicone oil emulsions were obtained via phase inversion emulsification and a durable and biocompatible antibacterial cotton fabric was achieved. The influence of various amino acid residues on antibacterial efficacy was investigated and L-Tryptophan (Trp) graft silicone oil (L-Trp-AEAPS) exhibits the best antibacterial performance. In addition, the resulting antibacterial cotton fabric (L-Trp-AEAPS-CF) shows good antibacterial activity against <em>E. coli</em> and <em>S. aureus</em>, excellent biocompatibility, and low toxicity owing to the amino acid residue. Finally, after 50 laundering cycles, the L-Trp-AEAPS-CF retained an antibacterial efficiency exceeding 98 %, indicating excellent washing durability. The L-Trp-AEAPS-CF with antibacterial durability and biocompatibility exhibited broad application prospects in biomedical materials.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106157"},"PeriodicalIF":4.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-drawn PVDF piezoelectric film for linear and large-range pressure sensing","authors":"Zhiwei Ye ,&nbsp;Juan Yi ,&nbsp;Yibo Zhang,&nbsp;Chuanxi Xiong","doi":"10.1016/j.reactfunctpolym.2025.106159","DOIUrl":"10.1016/j.reactfunctpolym.2025.106159","url":null,"abstract":"<div><div>Research on the piezoelectricity of poly(vinylidene fluoride) (PVDF) has primarily concentrated on the β phase content, with comparatively little attention paid to the crystallization morphology of the β phase and the crystalline and amorphous interfaces. Herein, we prepared piezoelectric PVDF films with pure β phase, high crystallinity, and rich crystalline-amorphous interface through ultra-drawing and high-pressure thermal annealing. The solution casting PVDF films exhibited similar to thermotropic glass transition behavior (steps in the DSC curves, Tg-like), resulting in stretching multiplicities up to 12, much higher than previous studies. Meanwhile, the refinement of oriented fiber crystals was visually shown in the AFM force mapping images. Furthermore, the WAXD and SAXS results demonstrated that the PVDF exhibited a smaller grain size following ultra-drawing. The piezoelectric coefficient of the PVDF film subjected to ultra-drawing is superior to that of the commercial PVDF film. Self-powered sensor devices based on PVDF film exhibit excellent linear sensing characteristics over a large stress range (20 MPa). The work presents a straightforward approach for the fabrication of flexible piezoelectric PVDF films, facilitating the commercialization of a vast array of self-powered sensing films.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"208 ","pages":"Article 106159"},"PeriodicalIF":4.5,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}