Reactive & Functional Polymers最新文献

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Closed-loop chemical recycling of polymer networks via reversible Aza-Michael addition 通过可逆Aza-Michael加成的聚合物网络闭环化学回收
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-11 DOI: 10.1016/j.reactfunctpolym.2025.106451
Changjuan Guo , Hao Ding , Mei Zhang , Lei Zhai , Ke Zhang
{"title":"Closed-loop chemical recycling of polymer networks via reversible Aza-Michael addition","authors":"Changjuan Guo ,&nbsp;Hao Ding ,&nbsp;Mei Zhang ,&nbsp;Lei Zhai ,&nbsp;Ke Zhang","doi":"10.1016/j.reactfunctpolym.2025.106451","DOIUrl":"10.1016/j.reactfunctpolym.2025.106451","url":null,"abstract":"<div><div>A new type of closed-loop recyclable polymer network material was developed based on a reversible aza-Michael addition reaction between 2,6-di-<em>t</em>-butyl-7-phenyl-<em>p</em>-quinone methide (<em>p</em>QM) and secondary amine group. The polymer networks could be conveniently prepared at ambient conditions using the efficient aza-Michael addition to crosslink the difunctional monomers with <em>p</em>QM end groups and trifunctional crosslinker of tris[2-(methylamino)ethyl]amine (TMEN). By virtue of the reversible reaction property, the crosslinked polymer networks could be easily degraded using di-<em>tert</em>-butyl dicarbonate to trap the released secondary amine groups to stimulate the reverse aza-Michael addition reaction. The <em>p</em>QM monomers and TMEN crosslinkers could be recovered with high yields above 85 % and 75 % by this degradation approach, respectively. The thermal and mechanical properties of the resultant polymer network materials could be flexibly tuned ranging from elastomers to plastics, by simply manipulating the chemical structure of the <em>p</em>QM monomers.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106451"},"PeriodicalIF":5.1,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860696","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}
引用次数: 0
Post-functionalizable and reusable biobased polyhydroxyurethane adhesives with pendant furyl groups 后功能化和可重复使用的生物基聚羟基聚氨酯粘合剂
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-11 DOI: 10.1016/j.reactfunctpolym.2025.106450
Gorakh Hiraman Ghuge , Kiran Sukumaran Nair
{"title":"Post-functionalizable and reusable biobased polyhydroxyurethane adhesives with pendant furyl groups","authors":"Gorakh Hiraman Ghuge ,&nbsp;Kiran Sukumaran Nair","doi":"10.1016/j.reactfunctpolym.2025.106450","DOIUrl":"10.1016/j.reactfunctpolym.2025.106450","url":null,"abstract":"<div><div>Polyurethane hot melt adhesives (PU-HMAs) are essential in various industries due to their fast-setting properties, strong adhesion, and versatility across a wide range of substrates. However, conventional fossil-based PU-HMAs face significant challenges, including reliance on non-renewable resources, high environmental impact, and the use of hazardous isocyanates, which pose health and safety concerns. To address these issues, this study focuses on developing sustainable, high-performance PHU-HMAs containing pendant furyl groups for metal bonding. A series of adhesives were developed utilizing varying proportions of two biobased dicarbonates derived from lignin and sugar: one featuring a pendant furyl group (BGF-PF-DC) and another without the pendant group (BGF-DC), in conjunction with Priamine 1074. The study comprehensively examined the effects of these formulations on the physio-mechanical, thermal, and adhesive properties. The results demonstrated an impressive renewable carbon content of 89–90 %, high adhesion strength of up to 9.27 MPa on aluminum and 9.43 MPa on stainless steel, excellent underwater adhesion, and outstanding reusability. Furthermore, the post-modifiability of pendant furyl in PHU6-PF100 was evaluated through cross-linking via the Diels-Alder reaction with bismaleimides (BMI). This study also examined the effects of these modifications on both the adhesive performance and thermal characteristics of the modified PHUs. However, the postmodified PHU/BMI network showed a decrease in adhesion but exhibited a higher glass transition temperature and improved adhesion stability at 50 °C compared to PHU6-PF100. This study emphasizes the sustainable and high-performance potential of PHU-based hot melt adhesives, establishing them as a viable alternative to traditional isocyanate-based systems. Furthermore, it introduces new opportunities for incorporating Diels-Alder (DA) chemistry into PHU adhesives, which allows for stable adhesion at elevated temperatures and broadens their applicability across various industries. Additionally, this research can serve as a foundation for future studies to investigate thermoreversibility in thermosetting PHUs, potentially expanding their range of applications even further.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106450"},"PeriodicalIF":5.1,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864220","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}
引用次数: 0
Synthesis and characterization of DOPO-derived curing agent and lignin-epoxy system dopo固化剂及木质素-环氧树脂体系的合成与表征
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-09 DOI: 10.1016/j.reactfunctpolym.2025.106447
Yunpeng Ma, Haowen Tang, Xinjie Liu, Xinyu Lu, Xiaoli Gu
{"title":"Synthesis and characterization of DOPO-derived curing agent and lignin-epoxy system","authors":"Yunpeng Ma,&nbsp;Haowen Tang,&nbsp;Xinjie Liu,&nbsp;Xinyu Lu,&nbsp;Xiaoli Gu","doi":"10.1016/j.reactfunctpolym.2025.106447","DOIUrl":"10.1016/j.reactfunctpolym.2025.106447","url":null,"abstract":"<div><div>In response to the urgent need for sustainable alternatives to petroleum-based resources, particularly in the production of traditional thermosetting epoxy resins, this study introduces a pioneering approach using alkali lignin as a renewable substitute for phenol and glyoxal for formaldehyde. By synthesizing a lignin-based epoxy resin and combining it with a DOPO-diamine compound (DDC), we have developed a novel bio-based epoxy resin that not only aligns with eco-friendly principles but also exhibits intrinsic flame retardancy. The DDC-cured lignin-based epoxy resin (DDC-LER) stands out for its exceptional thermal stability, with a high char yield of 38.78 % in nitrogen at 800 °C, outperforming the DDM-cured counterparts. The glass transition temperature (Tg) of DDC-LER, as measured by DMA, is elevated to 145.2 °C, surpassing the 112.3 °C of DDM-LER, a result corroborated by DSC assessments. The flame retardancy of the DDC-cured materials is further highlighted by their high Limiting Oxygen Index values of 37.5 % and 35.3 %, earning them UL-94 <em>V</em>-0 rating. The DDC-LER system also demonstrates a significant reduction in heat release rate (HRR) and total smoke production (TSP), showcasing its superior safety profile. Through a comprehensive analysis of both condensed and gas phases, the underlying flame retardancy mechanism of DDC-LER is elucidated. In conclusion, the bio-based epoxy materials synthesized in this study represent a significant step towards environmentally responsible materials science, offering a compelling combination of properties that suggest a wide range of potential applications across various sectors.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106447"},"PeriodicalIF":5.1,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831582","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}
引用次数: 0
Preparation and evaluation of enoxaparin-imprinted polymer via precipitation polymerization using microwave irradiation and conventional stirring methods 微波辐照沉淀聚合法制备依诺肝素印迹聚合物及其性能评价
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-08 DOI: 10.1016/j.reactfunctpolym.2025.106444
Engrid Juni Astuti , Slamet Ibrahim , Muhammad Ali Zulfikar , Sophi Damayanti
{"title":"Preparation and evaluation of enoxaparin-imprinted polymer via precipitation polymerization using microwave irradiation and conventional stirring methods","authors":"Engrid Juni Astuti ,&nbsp;Slamet Ibrahim ,&nbsp;Muhammad Ali Zulfikar ,&nbsp;Sophi Damayanti","doi":"10.1016/j.reactfunctpolym.2025.106444","DOIUrl":"10.1016/j.reactfunctpolym.2025.106444","url":null,"abstract":"<div><div>In this investigation, a series of enoxaparin-imprinted polymers were prepared, and their molecular recognition properties were assessed. Itaconic acid (ITA) was utilized as the functional monomer, while <em>N</em>, <em>N</em>′-methylenebisacrylamide (MBAA) functioned as the cross-linker, with water serving as the solvent in the synthesis of both molecularly imprinted polymers (MIPs) and non-imprinted polymers (NIPs). The MIPs were produced through precipitation polymerization, employing both microwave irradiation and conventional stirring methods. Following polymer formation, the MIPs were characterized and their adsorption capacities were evaluated. In the final stage, a method for enoxaparin sample preparation in a biological matrix —specifically, blood plasma—was developed using the MIPs. The adsorption capacity of MIPM was 43.47 ± 0.40 mg g<sup>−1</sup>, exceeding that of MIPS, which was 40.77 ± 0.75 mg g<sup>−1</sup>. The imprinting factors (IF) for MIPM and MIPS were 1.21 and 0.71, respectively. The evaluation of adsorption kinetics revealed that all synthesized MIPs adhered to the pseudo-second-order kinetic model, as indicated by correlation coefficients approaching one. Additionally, the adsorption isotherm analysis showed that all MIPs were consistent with the Freundlich isotherm model. BET analysis showed that MIPM exhibited the largest surface area, measuring 20.186 m<sup>2</sup>/g. The selectivity test demonstrated that MIPM possessed greater selectivity for enoxaparin compared to MIPS. The application results demonstrated that MIPM was more effective than MIPS in extracting enoxaparin from the blood plasma matrix. Using 20 mg of MIPM as the sorbent, enoxaparin was extracted from blood plasma with a recovery rate of 100.31 ± 0.21 %.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106444"},"PeriodicalIF":5.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887083","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}
引用次数: 0
Design of flexible cardanol-derived poly (benzoxazines) for advanced coatings: Superhydrophobicity, self-cleaning, oil–water separation and corrosion resistance 用于高级涂料的柔性腰果酚衍生聚苯并恶嗪的设计:超疏水、自清洁、油水分离和耐腐蚀
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-08 DOI: 10.1016/j.reactfunctpolym.2025.106428
Janapriya Mathimani , Latha Govindraj , Devaraju Subramani , Kumaravel Ammasai , Alagar Muthukaruppan
{"title":"Design of flexible cardanol-derived poly (benzoxazines) for advanced coatings: Superhydrophobicity, self-cleaning, oil–water separation and corrosion resistance","authors":"Janapriya Mathimani ,&nbsp;Latha Govindraj ,&nbsp;Devaraju Subramani ,&nbsp;Kumaravel Ammasai ,&nbsp;Alagar Muthukaruppan","doi":"10.1016/j.reactfunctpolym.2025.106428","DOIUrl":"10.1016/j.reactfunctpolym.2025.106428","url":null,"abstract":"<div><div>In the present work, an attempt has been made to develop flexible, partially bio-based polybenzoxazine matrices with superhydrophobic behaviour for improved oil-water separation, self-cleaning and anti-corrosive properties. A new type of card-bisphenol (COBP) has been synthesized using cardanol and octanaldehyde as eco-friendly, natural precursors to substitute fossil-based materials to maintain environmental sustainability. Four distinct benzoxazines (COBP-oa, COBP-dda, COBP-oda, and COBP-fa) were synthesized using COBP and different types of amines viz., octylamine (oa), dodecylamine (dda), octadecyl amine (oda) and furfurylamine (fa) with paraformaldehyde through Mannich condensation reaction. The non-polar nature of these long aliphatic chains present in the benzoxazine molecules contributes to an enhanced superhydrophobic behaviour. Structural characterization of the synthesized monomers was confirmed through FT-IR and <sup>1</sup>H NMR spectroscopic analyses. DSC analysis infers that the curing temperature of benzoxazine monomers is increased with increasing the aliphatic chain length. Data from TGA ascertain that the poly (COBP-fa) exhibited the highest thermal stability and char residue, among the synthesized polybenzoxazines (PBZs). The COBP-oda possesses a higher value of water contact angle of 155° which in turn contributes to superhydrophobic behaviour. The superhydrophobic behaviour also contributes to superior corrosion resistance, with an inhibition efficiency of 95.87 %. Further, it was also observed that the PBZ-coated cotton fabric achieved an oil-water separation efficiency of &gt;90 %. The oil-absorption properties of the PBZ-modified foams showed 96–99 % oil absorption efficiency. Data obtained from different studies ascertain the versatility of the developed materials and suggest their utility towards high-performance coating applications, under adverse environmental conditions.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106428"},"PeriodicalIF":5.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144864219","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}
引用次数: 0
Preparation and properties of UV-cured highly hydrophobic organosilicon composites 紫外光固化高疏水性有机硅复合材料的制备及性能研究
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-08 DOI: 10.1016/j.reactfunctpolym.2025.106442
Yue Wu, Chenchen Li, Shusen Wei, Shaopei Xie, Jiafeng Lu, Hong Dong, Yanjiang Song, Zhirong Qu, Chuan Wu
{"title":"Preparation and properties of UV-cured highly hydrophobic organosilicon composites","authors":"Yue Wu,&nbsp;Chenchen Li,&nbsp;Shusen Wei,&nbsp;Shaopei Xie,&nbsp;Jiafeng Lu,&nbsp;Hong Dong,&nbsp;Yanjiang Song,&nbsp;Zhirong Qu,&nbsp;Chuan Wu","doi":"10.1016/j.reactfunctpolym.2025.106442","DOIUrl":"10.1016/j.reactfunctpolym.2025.106442","url":null,"abstract":"<div><div>This study focuses on the synthesis and characterization of silicone-based composite materials. Four <em>α</em>-(<em>n</em>-butyldimethyl)-<em>ω</em>-(acryloxybutyldimethyl)-terminated polydimethylsiloxanes (BATP) with varying molecular weights were prepared through anionic living polymerization, hydrosilylation, hydroxyl protection/deprotection, and esterification reactions. These BATP oligomers were blended with either a tetrafunctional acryloxy polysiloxane (DBABP) or a difunctional fluorinated polysiloxane (DAFP). The mixtures were subsequently UV-cured using a hybrid photoinitiator. The effects of UV curing time, blend composition, and structure on the structure and properties of the cured materials were investigated. Notably, all blends achieved cross-linking within 40 s of UV exposure. Composites prepared using BATP-3 oligomer with a number-average molecular weight of 3800 g/mol exhibited the highest gelation yield, approximately 70 %. Among the composites, the BATP-3@DAFP material demonstrated the lowest water absorption at 1.4 %, while the BATP-3@DBABP composite showed the highest water contact angle of 124.62°, indicating excellent hydrophobicity. This research highlights the potential of these silicone composites for applications requiring tunable surface and interface properties.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106442"},"PeriodicalIF":5.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842655","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}
引用次数: 0
Tuning the properties of gelatin films through crosslinking and addition of ionic liquids 通过交联和离子液体的加入调整明胶薄膜的性能
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-08 DOI: 10.1016/j.reactfunctpolym.2025.106445
Alaitz Etxabide , Estela O. Carvalho , Nelson Pereira , Daniela Correia , Pedro Guerrero , Carlos M. Costa , Koro de la Caba , Senentxu Lanceros-Mendez
{"title":"Tuning the properties of gelatin films through crosslinking and addition of ionic liquids","authors":"Alaitz Etxabide ,&nbsp;Estela O. Carvalho ,&nbsp;Nelson Pereira ,&nbsp;Daniela Correia ,&nbsp;Pedro Guerrero ,&nbsp;Carlos M. Costa ,&nbsp;Koro de la Caba ,&nbsp;Senentxu Lanceros-Mendez","doi":"10.1016/j.reactfunctpolym.2025.106445","DOIUrl":"10.1016/j.reactfunctpolym.2025.106445","url":null,"abstract":"<div><div>The exploration into biopolymer applications has experienced fast growth in recent years due to the ever-growing environmental and societal demand for a greener and safer environment. In this study, fish gelatin-based films with fructose and different choline-based ionic liquids, such as choline dihydrogen phosphate, choline acetate, and choline serinate, were prepared to assess the effect of Maillard reaction and the inluence of the ionic liquids on the film properties. Overall, the presence of physical and chemical interactions enhanced UV–Vis light absorption capacity, reduced the solubility, improved film flexibility and conductivity. These changes were related to the formation of Maillard reaction products, the plasticising effect of ionic liquids and the increase in ionic mobile species associated with the ionic liquids within the films. This study shows the possibility of tailoring the properties of bio-based materials via Maillard reaction and the addition of ionic liquids.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106445"},"PeriodicalIF":5.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831581","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}
引用次数: 0
Exploiting epoxy-based monomers from biobased ferulic acid and furfuryl amine for a new set of bio-derived materials 从生物阿魏酸和糠胺中提取环氧基单体制备一套新的生物衍生材料
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-08 DOI: 10.1016/j.reactfunctpolym.2025.106443
Lorenzo Pezzana , Giuseppe Melilli , Eva Malmström , Mats Johansson , Marco Sangermano , Nicolas Sbirrazzuoli , Nathanael Guigo
{"title":"Exploiting epoxy-based monomers from biobased ferulic acid and furfuryl amine for a new set of bio-derived materials","authors":"Lorenzo Pezzana ,&nbsp;Giuseppe Melilli ,&nbsp;Eva Malmström ,&nbsp;Mats Johansson ,&nbsp;Marco Sangermano ,&nbsp;Nicolas Sbirrazzuoli ,&nbsp;Nathanael Guigo","doi":"10.1016/j.reactfunctpolym.2025.106443","DOIUrl":"10.1016/j.reactfunctpolym.2025.106443","url":null,"abstract":"<div><div>This study investigates the thermal curing behavior and thermo-mechanical properties of bio-based thermosets generated from epoxy monomers derived from furfuryl amine and ferulic acid, in conjunction with the bio-based carboxylic acid, PRIPOL 1017. The synthesis involves use of furfuryl amine and ferulic acid to develop epoxy monomers, enhancing the potential use of these bio-based platform molecules. The thermal curing process was thoroughly examined to understand the kinetics and mechanisms involved. Differential scanning calorimetry (DSC) and Fourier-transform infrared spectroscopy (FTIR) and rheology were employed to monitor the progress of the curing reaction and to characterize the chemical changes occurring during the process. The influence of curing parameters such as temperature and time on the curing kinetics of the cured networks was systematically investigated. Furthermore, the thermo-mechanical properties of the cured epoxy networks were comprehensively evaluated. Dynamic mechanical analysis (DMA) and DSC were conducted to assess the relationship between the chemical structure of the monomers and the resulting thermo-mechanical properties of the cured networks. This provided a valuable insight into structure-property relationships of the bio-based thermosetting materials. Overall, this study highlights the potential of ferulic acid diepoxy and diglycidyl furfurylamine for the development of sustainable thermosetting materials.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106443"},"PeriodicalIF":5.1,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887082","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}
引用次数: 0
Fabrication of alginate-carboxymethyl chitosan hydrogel granules for achieving anti-photolysis and controlled release of spinosad 海藻酸-羧甲基壳聚糖水凝胶颗粒的制备及其抗光解控释的研究
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-06 DOI: 10.1016/j.reactfunctpolym.2025.106430
Hong-Guang Zhang , Peng Zhu , Guo-Bin Li , Wei-Kun Li , Jin-Ling Liu , Chen-Yang Xu , Xiang-Ping Kong , Juan Wang
{"title":"Fabrication of alginate-carboxymethyl chitosan hydrogel granules for achieving anti-photolysis and controlled release of spinosad","authors":"Hong-Guang Zhang ,&nbsp;Peng Zhu ,&nbsp;Guo-Bin Li ,&nbsp;Wei-Kun Li ,&nbsp;Jin-Ling Liu ,&nbsp;Chen-Yang Xu ,&nbsp;Xiang-Ping Kong ,&nbsp;Juan Wang","doi":"10.1016/j.reactfunctpolym.2025.106430","DOIUrl":"10.1016/j.reactfunctpolym.2025.106430","url":null,"abstract":"<div><div>The development of long-acting and controlled-release systems is an effective way to improve the efficacy of pesticides, especially those that are highly effective but susceptible to photodegradation. Herein, hydrogel granules of sodium alginate and carboxymethyl chitosan were successfully prepared for the controlled release of biological insecticide spinosad. The obtained formulation displayed an excellent encapsulation efficiency of 91.5 % and a good loading content of 22.3 %. Instrument characterization (SEM, FT-IR, TGA, and DSC) demonstrated that the spinosad was encapsulated by hydrogel via physical adsorption and adhesion without chemical bonding. Compared with unformulated spinosad, the photodegradation rate of spinosad in the controlled-release granules was reduced by more than 50 %, indicating the excellent UV-shielding ability of the formulation. Moreover, the in vitro release profile and swelling behavior exhibited dual-sensitivity to pH and temperature, with the release dynamics following the Fickian diffusion mechanism of Ritger-Peppas model. Within the simulated intestinal environment of lepidopteran pests (pH 8.0 to 10.0), spinosad was observed to be released rapidly from the granules, which helps to improve its targeting efficacy. This work contributes to the development of insecticide controlled-release systems using natural polymers as carriers, with a good potential in sustainable pest control.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"216 ","pages":"Article 106430"},"PeriodicalIF":5.1,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831580","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}
引用次数: 0
In situ confinement of Fe3O4 nanocrystalline in millimeter-sized anion exchange resin for enhanced bisphenol A adsorption 纳米Fe3O4在毫米级阴离子交换树脂中的原位约束增强双酚A吸附
IF 5.1 3区 工程技术
Reactive & Functional Polymers Pub Date : 2025-08-05 DOI: 10.1016/j.reactfunctpolym.2025.106426
Mingjin Hu , Guqing Xiao , Qiudong Meng
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