Journal of Polymer Research最新文献_第2页

Pyrolysis kinetics of polyethylene terephthalate (PET) plastic bottle waste with coal fly ash zeolite 粉煤灰沸石对聚对苯二甲酸乙二醇酯（PET）废塑料的热解动力学研究

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-07 DOI: 10.1007/s10965-025-04582-y

Ryo Hua Ho, Ju Won Ri, Jong Ryul Ri, Songchol Hong

{"title":"Pyrolysis kinetics of polyethylene terephthalate (PET) plastic bottle waste with coal fly ash zeolite","authors":"Ryo Hua Ho, Ju Won Ri, Jong Ryul Ri, Songchol Hong","doi":"10.1007/s10965-025-04582-y","DOIUrl":"10.1007/s10965-025-04582-y","url":null,"abstract":"<div><p>The PET bottle waste consists of PET bottle and PP plug. We investigated the catalytic pyrolysis kinetics of PET bottle waste using HY-FAZ obtained by activating CFA with acid and alkali. The catalytic effect of coal fly ash was investigated by thermal analysis of PET bottle waste with and without HY-FAZ of 20%, respectively, and comparison of degree of decomposition. Pyrolysis occurred in a temperature range of 623–753 K, and it was confirmed that HY-FAZ accelerated the pyrolysis process of waste, increasing the yield of volatile gas by 14.2% and decreasing the yield of solid residue by 14.14%. The pyrolysis with the HY-FAZ was characterized using TG and DTG in a temperature range of 313–923 K in N<sub>2</sub> atmosphere at four different heating rates (5, 10, 15 and 20 K·min<sup>−1</sup>). The pyrolysis kinetics was investigated with five methods (FR, FWO, KAS, STK and DAEM). The pyrolysis reaction of PET bottle waste with HY-FAZ catalyst was carried out in two stages, the activation energies (E<sub>a</sub>) of which were 177.3 kJ·mol<sup>−1</sup> and 182.9 kJ·mol<sup>−1</sup>, respectively.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256299","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}

引用次数: 0

Impact of polyethylene glycol on the thermal properties of PVA-Fe2.5Mn0.5O4-PEG ferrogels and its potential application in hyperthermia therapy 聚乙二醇对PVA-Fe2.5Mn0.5O4-PEG铁凝胶热性能的影响及其在热疗中的潜在应用

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-07 DOI: 10.1007/s10965-025-04609-4

Kormil Saputra, Sunaryono Sunaryono, Ahmad Taufiq, Chusnana Insjaf Yogihati, Wida Puteri Agista

{"title":"Impact of polyethylene glycol on the thermal properties of PVA-Fe2.5Mn0.5O4-PEG ferrogels and its potential application in hyperthermia therapy","authors":"Kormil Saputra, Sunaryono Sunaryono, Ahmad Taufiq, Chusnana Insjaf Yogihati, Wida Puteri Agista","doi":"10.1007/s10965-025-04609-4","DOIUrl":"10.1007/s10965-025-04609-4","url":null,"abstract":"<div><p>Cancer is currently one of the most lethal diseases, and numerous studies have been conducted to develop effective treatments. One such treatment involves hyperthermia therapy, which is performed by applying heat to cancer cells at approximately 113 °F (45 °C). There are several methods for performing hyperthermia therapy, including a method that utilizes ferrogel. The present study focuses on the thermal study of ferrogel with Fe<sub>2.5</sub>Mn<sub>0.5</sub>O<sub>4</sub>-PEG magnetic filler and PVA hydrogel matrix. The Fe<sub>2.5</sub>Mn<sub>0.5</sub>O<sub>4</sub>-PEG filler was synthesized by coprecipitation method, and ferrogels were prepared by freezing-thawing method, which was repeated up to five times. The characterization of Fe<sub>2.5</sub>Mn<sub>0.5</sub>O<sub>4</sub>-PEG powder was performed using XRD, FTIR, UV-VIS, TEM, and SAXS, respectively, to ascertain the particle size, functional groups, bandgap, morphology, and particle size distribution. Concurrently, the ferrogel was subjected to a magnetothermal test to determine the SAR value. The XRD characterization results revealed the presence of pure Fe<sub>3</sub>O<sub>4</sub> phase in the form of cubic structure with particle sizes ranging from 3.43 nm to 5.64 nm. These results were corroborated by TEM and SAXS characterization, which revealed a particle size distribution of approximately 3–6 nm. Furthermore, the FTIR characterization results indicated the presence of primary functional groups on tetrahedral and octahedral sites. UV-VIS characterization results of FM1-FM4 yielded an average bandgap value of 2.1 eV. Magnetothermal characterization of PVA-Fe<sub>2.5</sub>Mn<sub>0.5</sub>O<sub>4</sub>-PEG 6000 ferrogel revealed that the sample exhibited the highest SAR value at a 5% filler concentration, with a value of 7.351 W/g.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256230","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}

引用次数: 0

Electrospinning optimization for enhanced hydrophilicity and surface functionality of Poly(ε-caprolactone)/Polyethyleneimine nanofibers with embedded Fe3O4 nanoparticles 电纺丝优化包埋Fe3O4纳米粒子聚（ε-己内酯）/聚乙烯亚胺纳米纤维的亲水性和表面功能

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-07 DOI: 10.1007/s10965-025-04505-x

Fereshteh Amini, Hamid Delavari H., Shahrokh Ghovvati, Reza Poursalehi

{"title":"Electrospinning optimization for enhanced hydrophilicity and surface functionality of Poly(ε-caprolactone)/Polyethyleneimine nanofibers with embedded Fe3O4 nanoparticles","authors":"Fereshteh Amini, Hamid Delavari H., Shahrokh Ghovvati, Reza Poursalehi","doi":"10.1007/s10965-025-04505-x","DOIUrl":"10.1007/s10965-025-04505-x","url":null,"abstract":"<div><p>To address the poor hydrophilicity and limited functionality of poly(ε-caprolactone) (PCL) nanofibers, polyethyleneimine (PEI) was incorporated into the electrospinning solution. The process was optimized using response surface methodology (RSM), resulting in nanofibers with an average diameter of 227 nm. Additionally, PEI-coated Fe<sub>3</sub>O<sub>4</sub> nanoparticles, synthesized via a one-step hydrothermal method, were embedded into the PCL/PEI nanofibers, producing magnetic nanofibers with a uniform diameter of 197 nm and a saturation magnetization of 22.6 emu/g. The inclusion of Fe<sub>3</sub>O<sub>4</sub>@PEI nanoparticles reduced the water contact angle by over 50%, significantly enhancing hydrophilicity. To evaluate the nanocomposite’s ability to adsorb negatively charged molecules, the adsorption capacity of Congo red (CR) was tested, achieving 378.88 mg/g for PCL/PEI and 397.43 mg/g for PCL/PEI/Fe<sub>3</sub>O<sub>4</sub>@PEI. The adsorption followed pseudo-second-order kinetics and Langmuir isotherm models. Reusability tests showed > 90% removal efficiency over five cycles. These results highlight the potential of PCL/PEI-based nanofibers for wastewater treatment and dye removal, making them promising for sustainable environmental remediation.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256330","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}

引用次数: 0

Temperature–concentration conditions for the formation of liquid crystalline structures in solutions of cellulose and its derivatives 在纤维素及其衍生物溶液中形成液晶结构的温度-浓度条件

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-06 DOI: 10.1007/s10965-025-04605-8

Aleksandr Igorevich Shutov, Oleg Alekseevich Khanchich

引用次数: 0

Enhanced antimicrobial properties of colored PET fibers through the synergistic effects of cerium phosphate and silver nanoparticles 磷酸铈和纳米银的协同作用增强了有色PET纤维的抗菌性能

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-06 DOI: 10.1007/s10965-025-04599-3

Qian Ma, Kezheng Gao, Pinghou Sheng, Shilong Wang, Zhicheng Zhang, Mingshuo Liu, Xia Sun, Mingqian Li, ZhongZhen Yu, Yun Ding

{"title":"Enhanced antimicrobial properties of colored PET fibers through the synergistic effects of cerium phosphate and silver nanoparticles","authors":"Qian Ma, Kezheng Gao, Pinghou Sheng, Shilong Wang, Zhicheng Zhang, Mingshuo Liu, Xia Sun, Mingqian Li, ZhongZhen Yu, Yun Ding","doi":"10.1007/s10965-025-04599-3","DOIUrl":"10.1007/s10965-025-04599-3","url":null,"abstract":"<div><p>Public health emergency of international concern has greatly attracted consumers’ attention to textiles with sustainable personal health protection functions. Although there have been many valuable advances in the research of antibacterial textiles, there is still a slight lack of emphasis on the protective ability against fungi. Herein, an antimicrobial agent (CePO<sub>4</sub>@Ag) composed of cerium phosphate (CePO<sub>4</sub>) and silver nanoparticles (AgNPs) is reported. The antimicrobial agents and pigment are pre-dispersed using a green and facile masterbatch method, followed by melt spinning to produce colored PET multifunctional fibers. The synergistic effect between CePO<sub>4</sub> and AgNPs in the fibers not only ensures efficient silver ion release for antimicrobial activity but also utilizes the inherent antimicrobial properties of CePO<sub>4</sub>, thereby achieving outstanding antifungal effects with inhibition rates exceeding 99%. Importantly, the PET multifunctional fibers maintained satisfactory color-indicating properties after the incorporation of CePO<sub>4</sub>@Ag, possessing a tinctorial strength of 102.2%. Therefore, the fabricated PET fibers combine amazing antimicrobial, color-indicating properties, and substantial mechanical strength. This work provides a facile preparation method for the colored antimicrobial textiles.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256590","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}

引用次数: 0

Management of bioplastic waste: a critical analysis of biodegradation and recycling approaches 生物塑料废物的管理：生物降解和回收方法的关键分析

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-06 DOI: 10.1007/s10965-025-04561-3

Mansoor Sultan, Nisar Ali, Muhammad Naseem, Mazharul Islam, Abdul Kareem, Yong Yang, Fawad Khan, Saba Gul, Adnan Khan, Farman Ali, Rayya Ahmed Al Balushi, Mohammad M. Al-Hinaai, Thuraya Al-Harthy

{"title":"Management of bioplastic waste: a critical analysis of biodegradation and recycling approaches","authors":"Mansoor Sultan, Nisar Ali, Muhammad Naseem, Mazharul Islam, Abdul Kareem, Yong Yang, Fawad Khan, Saba Gul, Adnan Khan, Farman Ali, Rayya Ahmed Al Balushi, Mohammad M. Al-Hinaai, Thuraya Al-Harthy","doi":"10.1007/s10965-025-04561-3","DOIUrl":"10.1007/s10965-025-04561-3","url":null,"abstract":"<div><p>Switching from traditional plastics to bioplastics—those made from biological sources and/or designed to be biodegradable—does not inherently solve the problems of resource depletion and the buildup of plastic waste. Creating a fully sustainable plastics value chain requires that the increasing production of bioplastics be accompanied by effective strategies for managing the ultimate disposal and breakdown of bioplastic waste, irrespective of whether these bioplastics are biodegradable. There is broad agreement on the importance of recycling bio-based non-biodegradable bioplastics, such as bio-polyethylene terephthalate (bio-PET), polytrimethylene Terephthalate (bio-PTT), Polylactic Acid (PLA), bio-polyethylene (bio-PE), and bio-polypropylene (bio-PP). However, the approach is less straightforward for biodegradable bioplastics, where biodegradation is frequently considered the only viable end-of-life option. In contrast, recycling processes specifically target the recovery of plastic materials or monomers for reuse in the production cycle; biodegradation generally does not serve this purpose. These recycling processes, both mechanical and chemical, not only manage waste but also help preserve fundamental resources. As the production of bioplastics continues to expand, and these materials are expected to coexist with traditional plastics for a significant time, it is essential to identify the most appropriate end-of-life pathways for each type of commonly used bioplastic.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256227","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}

引用次数: 0

Incorporatıon of carob pod powder on polyvınyl alcohol-based bıocomposıte hydrogel fılm Incorporatıon在polyvınyl醇基bıocomposıte水凝胶fılm上添加角豆荚粉

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-04 DOI: 10.1007/s10965-025-04590-y

Büşra Mutlu, Murat Eroğlu

{"title":"Incorporatıon of carob pod powder on polyvınyl alcohol-based bıocomposıte hydrogel fılm","authors":"Büşra Mutlu, Murat Eroğlu","doi":"10.1007/s10965-025-04590-y","DOIUrl":"10.1007/s10965-025-04590-y","url":null,"abstract":"<div><p>Carob pod powder (CP), a neglected agro-waste material, provides a sustainable, cheap substitute for synthetic fillers, meeting the global demand for eco-friendly materials. In this context, this study investigates the incorporation of CP into polyvinyl alcohol (PVA)-based biocomposite hydrogel films to enhance their mechanical, structural, physicochemical, physical, and optical properties. The hydrogel films were prepared by dissolving PVA in distilled water, followed by the addition of CP powder at varying concentrations (5%, 10%, and 20% by weight). The mixtures were crosslinked using 6 M NaOH solution. Characterization of the prepared hydrogel samples was carried out by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), mechanical and optical testing. The results showed the addition of CP powder considerably improves the tensile strength and elongation at break of the hydrogel films, being most effective at 10% CP concentration. Hydrogel samples experienced decreasing moisture content and swelling ratios with increasing CP content, producing a more compact and hydrophobic structure. Optical properties, such as color and clarity, were affected by increased CP loadings, with darker films and reduced transparency at these higher CP levels. Thus, it can be stated that CP powder is a viable natural filler to enhance the properties of PVA-based hydrogel films for various biomedical and packing applications. We demonstrate the applicability of CP as a natural filler to facilitate sustainable hydrogel film design for biomedical and packaging applications. The work addresses both performance challenges and environmental concerns.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145210260","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}

引用次数: 0

Nitrile-functionalized covalent organic framework aerogels: dual-role components for high-performance lithium-sulfur batteries 腈功能化共价有机框架气凝胶：高性能锂硫电池的双作用组件

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-04 DOI: 10.1007/s10965-025-04611-w

Tianrui Liu, Quanqi Zhang, Kaibo Wang, Xiufeng Xu, Yulin Li, Wen Wen, Yongpeng Li, Zhuyin Sui

{"title":"Nitrile-functionalized covalent organic framework aerogels: dual-role components for high-performance lithium-sulfur batteries","authors":"Tianrui Liu, Quanqi Zhang, Kaibo Wang, Xiufeng Xu, Yulin Li, Wen Wen, Yongpeng Li, Zhuyin Sui","doi":"10.1007/s10965-025-04611-w","DOIUrl":"10.1007/s10965-025-04611-w","url":null,"abstract":"<div><p>Lithium-sulfur batteries have garnered substantial attention in the energy field owing to the remarkably high theoretical capacity of sulfur. Nevertheless, several inherent drawbacks, including the poor electrical conductivity of sulfur, its significant volumetric expansion during cycling, and the notorious shuttling effect caused by the dissolution of lithium polysulfides, have severely restricted their widespread practical application. In this research endeavor, nitrile-functionalized covalent organic framework (COF-CN) aerogels and their corresponding functionalized polypropylene separators were successfully synthesized and applied to lithium-sulfur batteries. The Boc protection synthesis strategy played a pivotal role in the preparation of COF-CN aerogels. These aerogels demonstrated remarkable ability to efficiently load sulfur while still maintaining their characteristic porous structure. Electrochemical tests further revealed that the lithium-sulfur battery equipped with the COF-CN modified separator exhibited distinct advantages over the unmodified version in terms of rate performance (595 mA h g<sup>–1</sup> at 2.0 C) and cycling stability (656 mA h g<sup>–1</sup> after 200 cycles at 0.5 C). This enhanced performance can be mainly attributed to the strong interaction between the nitrile functional groups present in the COF-CN aerogels and the polysulfides, which effectively suppressed the polysulfide shuttling effect.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256572","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}

引用次数: 0

Research on the Preparation and properties of biphenol liquid crystal epoxy resin 双酚液晶环氧树脂的制备及性能研究

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-04 DOI: 10.1007/s10965-025-04600-z

Kaijie Yang, Jiachun Zhong, Zejun Pu, Jiahong Pang, Yuhao Yang, Mengjie Yue

{"title":"Research on the Preparation and properties of biphenol liquid crystal epoxy resin","authors":"Kaijie Yang, Jiachun Zhong, Zejun Pu, Jiahong Pang, Yuhao Yang, Mengjie Yue","doi":"10.1007/s10965-025-04600-z","DOIUrl":"10.1007/s10965-025-04600-z","url":null,"abstract":"<div><p>Various liquid crystal epoxy resins with liquid crystal properties are widely used as electronic packaging materials. However, most liquid crystals have specific molecular structures, and the synthesis methods and processes used are complicated and costly. In this study, 4,4′-biphenol and epichlorohydrin were used as synthetic monomers to synthesize oligomeric 4,4′-diglycidyloxybiphenyl (BP) epoxy resin containing biphenyl moieties. Moreover, the synthesis method was optimized to obtain a higher-quality product. The thermodynamic properties of the new product and the cured product of E51 epoxy resin were compared to highlight the advantages of liquid crystal epoxy resins. The results showed that the epoxy equivalent of the liquid crystal epoxy resin obtained by the optimized synthesis method was 184.4 g/eq, which was lower than that of the liquid crystal epoxy resin synthesized by the traditional one-step method (200.2 g/eq). Compared with the cured sample of Epoxy resin 51 (E51), its glass transition temperature (Tg) reached 277.2 °C, the initial storage modulus was 2308 MPa, and the initial decomposition temperature reached 389.85 °C. Therefore, it can be concluded that optimizing the synthesis steps can improve the performance of liquid crystal epoxy resins. And compared with ordinary epoxy resins, liquid crystal epoxy resins have more excellent performance. The research results provide an optimization idea for the synthesis method of liquid crystal epoxy resins and provide data support for its application through the study of curing kinetics.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256571","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}

引用次数: 0

Sealants with low viscosity based on polysulfide rubber obtained through thiol-disulfide metathesis 以聚硫橡胶为基料，经硫醇-二硫化复分解制得低粘度密封胶

IF 2.8 4区化学

Journal of Polymer Research Pub Date : 2025-10-03 DOI: 10.1007/s10965-025-04601-y

Bihe Jiang, Zhihui Zhang, Jianze Shi, Siyuan Liu, Dazhen Li, Zengwen Cao

{"title":"Sealants with low viscosity based on polysulfide rubber obtained through thiol-disulfide metathesis","authors":"Bihe Jiang, Zhihui Zhang, Jianze Shi, Siyuan Liu, Dazhen Li, Zengwen Cao","doi":"10.1007/s10965-025-04601-y","DOIUrl":"10.1007/s10965-025-04601-y","url":null,"abstract":"<div><p>In this study, a mercaptan-disulfide exchange mechanism was used to modify liquid polysulfide rubber through the reaction between JLY155 and 1,6-hexanedithiol to reduce the viscosity of the liquid polysulfide. The results indicated a decrease in the viscosity and molecular weight of JLY155 and a notable improvement in the peeling strength of the prepared polysulfide sealant, demonstrating an approach to facilitating sealant preparation without sacrificing mechanical performance. Compared to JLY155, the modified liquid polysulfide rubber exhibited a reduction in viscosity, and the reduction extent could be modulated by adjusting the ratio of JLY155 and 1,6-hexanedithiol. The mechanical properties of the prepared polysulfide sealant demonstrated optimal results at a molar ratio of 4:1 between the reactants and Tris(dimethylaminomethyl)phenol (DMP30) catalyst at a loading of 0.05 wt%. The tensile strength of the prepared polysulfide sealant reached 2.38 MPa with an elongation at break of 119.68%, and the sealant exhibited excellent peel performance, undergoing substrate failure rather than adhesion failure. This was associated with a slightly lowered storage modulus (E’) in dynamic mechanical analysis. However, increasing the amount of DMP30 catalyst increased the efficiency of the thiol-disulfide bond exchange reaction and accelerated the sealant’s curing process in later stages, consequently reducing the elongation at break.</p></div>","PeriodicalId":658,"journal":{"name":"Journal of Polymer Research","volume":"32 10","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10965-025-04601-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145210666","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}

引用次数: 0