Polymer Bulletin最新文献_第10页

Enhancing natural rubber properties: a comprehensive study on the synergistic effects of wood sawdust and carbon black as fillers in rubber composites 增强天然橡胶性能：木屑和炭黑作为橡胶复合材料填料的协同效应的综合研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-08 DOI: 10.1007/s00289-024-05602-5

İlyas Kartal, İdris Karagöz

{"title":"Enhancing natural rubber properties: a comprehensive study on the synergistic effects of wood sawdust and carbon black as fillers in rubber composites","authors":"İlyas Kartal, İdris Karagöz","doi":"10.1007/s00289-024-05602-5","DOIUrl":"10.1007/s00289-024-05602-5","url":null,"abstract":"<div><p>Rubber products, especially in the automotive industry, play a vital role in manufacturing. However, natural rubber initially has relatively low mechanical properties. To enhance these properties, various additives and fillers are incorporated, including inorganic and organic options. This study focused on investigating the mechanical and thermomechanical properties of natural rubber composites filled with wood sawdust and carbon black. Tests such as hardness, density, tensile strength, viscosity, tear resistance, rebound resilience, accelerated aging, rubber process analysis, and dispersion were conducted to assess the viability of using wood sawdust as a filler material. The results indicate that wood sawdust, in combination with carbon black, can effectively serve as a filler in natural rubber when the appropriate filling ratio and size are carefully selected to achieve the desired properties. These findings underscore the potential of utilizing wood sawdust as a sustainable and cost-effective filler option in the production of rubber materials, especially in the automotive industry. Further research and optimization efforts have the potential to contribute significantly to the development of high-performance rubber composites with enhanced mechanical characteristics.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2091 - 2109"},"PeriodicalIF":3.1,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic effect of hybrid fillers on the thermal degradation of natural rubber: stability and kinetic studies 杂化填料对天然橡胶热降解的协同效应：稳定性和动力学研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-08 DOI: 10.1007/s00289-024-05596-0

V. S. Abhisha, K. S. ‬Sisanth, P. Selvin Thomas, Sabu Thomas, Ranimol Stephen

{"title":"Synergistic effect of hybrid fillers on the thermal degradation of natural rubber: stability and kinetic studies","authors":"V. S. Abhisha, K. S. ‬Sisanth, P. Selvin Thomas, Sabu Thomas, Ranimol Stephen","doi":"10.1007/s00289-024-05596-0","DOIUrl":"10.1007/s00289-024-05596-0","url":null,"abstract":"<div><p>The present study discusses the thermal degradation behavior of natural rubber (NR) reinforced with hybrid fillers. Effect of different combinations of carbon-based conductive fillers on the thermal properties of NR is analyzed, and its degradation mechanisms are evaluated. The fillers used for preparing the composites were conductive carbon black (CCB), multi-walled carbon nanotubes (MWCNT) and reduced graphene oxide (RGO). The fillers were treated with an ionic liquid, 1-ethyl-3-methylimidazolium chloride in order to improve the interaction between the fillers and matrix in the composites. Two step processing method was adopted for the preparation of the composites: rubber and filler mixing using an internal mixer at 100 °C with specified time and rotation followed by compounding in a two-roll mill. The composites were characterized using various techniques and the thermal degradation was studied using Thermogravimetric analyzer in different heating rates. Delayed thermal degradation of NR is observed in the presence of modified hybrid fillers. The thermograms of NR- hybrid filler systems at the heating rate of 20 °C min<sup>−1</sup> showed the dominant weight loss percentage in the temperature range of 380–400 °C. Kinetics of the thermal degradation is investigated using the models such as Coats–Redfern, Kissinger, Kissinger–Akahira–Sunose, and Flynn–wall–Ozawa. Furthermore, the activation energy derived from the kinetic models revealed the better thermal degradation stability of NR in the presence of ionic liquid-modified fillers and hybrid filler system of CCB–MWCNT–RGO. Among the different models used, Kissinger is the more appropriate model for calculating the activation energy of the degradation of NR in the presence of carbonaceous fillers because the calculation is based on the maximum degradation temperature.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 7","pages":"2111 - 2128"},"PeriodicalIF":3.1,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and theoretical investigation of the influence of graphene oxide/nanozirconia on the mechanical and durability properties of geopolymer concrete 氧化石墨烯/纳米氧化锆对地聚合物混凝土力学性能和耐久性影响的实验和理论研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-06 DOI: 10.1007/s00289-024-05607-0

M. Nanthini, R. Ganesan, Joseph Raj Xavier

{"title":"Experimental and theoretical investigation of the influence of graphene oxide/nanozirconia on the mechanical and durability properties of geopolymer concrete","authors":"M. Nanthini, R. Ganesan, Joseph Raj Xavier","doi":"10.1007/s00289-024-05607-0","DOIUrl":"10.1007/s00289-024-05607-0","url":null,"abstract":"<div><p>This study investigates the enhancement of geopolymer concrete (GPC) through the synergistic incorporation of graphene oxide (GO) and nanozirconia (NZ), aiming to improve its mechanical and functional properties for various construction applications. GPC is known for its high durability, excellent thermal stability, low shrinkage, and low permeability, contributing to its longevity and resistance to environmental factors. It also offers sustainability by utilizing industrial by-products like fly ash. The research explores how GO and NZ can further enhance these properties. Graphene oxide improves the microstructural integrity and mechanical strength of GPC due to its high surface area and load-bearing capacity. Nanozirconia increases thermal stability and chemical resistance, creating a denser and more durable matrix. Response surface methodology (RSM) was employed to optimize the incorporation of these nanomaterials. At optimal concentrations of 0.3% NZ and 0.3% GO with 49.201% fly ash, the GPC/NZ/GO composite exhibited a 50% increase in compressive strength compared to the control mix. Additionally, significant improvements were observed in flexural and splitting tensile strengths. The novelty of this research lies in the innovative combination of GO and NZ to develop a multifunctional geopolymer concrete with enhanced properties. By leveraging nanomaterial synergies and employing RSM for optimization, the study advances the understanding of high-performance geopolymer composites and offers valuable insights for their engineering in diverse applications.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"2025 - 2057"},"PeriodicalIF":3.1,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of energy absorption in epoxy-based Aramid fabrics -Basalt hybrid composites under oblique high velocity impact 斜向高速冲击下环氧基芳纶织物-玄武岩杂化复合材料吸能研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-05 DOI: 10.1007/s00289-024-05603-4

Hossein Rahmani, Amir hossein Kazemian, Mohammad Imanparast

{"title":"Investigation of energy absorption in epoxy-based Aramid fabrics -Basalt hybrid composites under oblique high velocity impact","authors":"Hossein Rahmani, Amir hossein Kazemian, Mohammad Imanparast","doi":"10.1007/s00289-024-05603-4","DOIUrl":"10.1007/s00289-024-05603-4","url":null,"abstract":"<div><p>In this paper, the effect of projectile impact angle on energy absorption of epoxy-based Aramid fabrics 200GSM -Basalt hybrid composites investigated experimentally under high velocity oblique impact (HVI). The specimens contain non-hybrid and intercalated hybrid that were manufactured by hand lay-up process in 9 layers. The projectile was sharp-tipped (tip angle: 36.90) with a conical head and with length of 30 mm. Experimental analysis was performed using a high velocity impact (ballistic) apparatus at velocity of 213 m/s (more than the ballistic limit of all specimens at different angles). Angles of impact are considered as normal, 15°, 30° and 45°. The results show that the energy absorption in hybrid composites is higher than pure specimens. In hybrid composites, when the Aramid fabrics is subjected to the projectile, energy absorption is increased 33.8% relative to pure Aramid fabrics 200GSM and 42.9% to pure basalt. On the other hand, when basalt is exposed to projectile, increment in energy absorption compared to pure Aramid fabrics and Basalt is 28.8% and 37.5%, respectively. Also, energy absorption at impact angles 15o, 30o and 45o are on average increased 14%, 22% and 37% compared to normal impact, respectively.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"2011 - 2023"},"PeriodicalIF":3.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rheological study of natural fiber biocomposites: a review 天然纤维生物复合材料流变学研究进展

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-05 DOI: 10.1007/s00289-024-05612-3

Durul Huda, Md Rezaur Rahman, Muhammad Khusairy Bin Bakri, Kuok King Kuok, Jehan Y. Al-Humaidi, Mohammed Muzibur Rahman

{"title":"Rheological study of natural fiber biocomposites: a review","authors":"Durul Huda, Md Rezaur Rahman, Muhammad Khusairy Bin Bakri, Kuok King Kuok, Jehan Y. Al-Humaidi, Mohammed Muzibur Rahman","doi":"10.1007/s00289-024-05612-3","DOIUrl":"10.1007/s00289-024-05612-3","url":null,"abstract":"<div><p>Rheological properties are pivotal determinants across the materials range, spanning solids, liquids, and gases, elucidating their nuanced deformation responses under applied stresses. This knowledge assumes paramount significance in biocomposite material development, guiding the strategic formulation of these advanced materials. The intricate landscape of rheology unfolds through the exploration of diverse properties, including viscosity, yield stress, and relaxation times, employing multifaceted testing procedures such as dynamic and time–temperature assessments. In biocomposite material research, the seamless integration of matrix and reinforcement materials is a critical focal point. Rheological testing is an indispensable tool, proficiently gauging these distinct materials' complex interactions and binding nature. This paper intricately compiles the literature, explaining diverse testing methodologies and providing a nuanced explanation and guide for method selection, thereby contributing substantively to the ongoing advancements in biocomposite material science.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1755 - 1776"},"PeriodicalIF":3.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manganese–cobalt ferrite and polyaniline core–shell nanocomposite as an efficient shielding material against electromagnetic interference under X-band frequency 锰钴铁氧体和聚苯胺核壳纳米复合材料在x波段有效屏蔽电磁干扰

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-05 DOI: 10.1007/s00289-024-05599-x

Chandra Shekhar Joshi, R. C. Srivastava, Amit Joshi, Harendra Kumar Verma

{"title":"Manganese–cobalt ferrite and polyaniline core–shell nanocomposite as an efficient shielding material against electromagnetic interference under X-band frequency","authors":"Chandra Shekhar Joshi, R. C. Srivastava, Amit Joshi, Harendra Kumar Verma","doi":"10.1007/s00289-024-05599-x","DOIUrl":"10.1007/s00289-024-05599-x","url":null,"abstract":"<div><p>Manganese–cobalt ferrite and polyaniline (MCF@PANI) core–shell nanocomposites with varying weight percentage of MCF (10, 20 and 50) were synthesized through chemical oxidative <i>in</i> situ polymerization of aniline in the presence of MCF NPs. Law of approach method was used to analyze saturation magnetization and anisotropy constant for synthesized nanocomposites. Saturation magnetization was found to be increased with increasing weight percentage of MCF NPs in core–shell nanocomposites. The shielding effectiveness (SE) of core–shell nanocomposites showed strong dependency on MCF NP concentration in PANI matrix. Maximum SE through reflection and absorption as well as total SE was shown by PANI@MCF50% core–shell nanocomposite for the sample thickness of 3 mm. The <i>in</i> situ polymerization of aniline-coated MCF NPs leads to enhanced interfacial polarization and contributes to higher microwave absorption. The PANI@MCF50% core–shell nanocomposite showed excellent SE (45%) in the X-band frequencies. The overall electromagnetic interference shielding effectiveness in the core–shell composites was found to be absorption dominant. Hence, these core–shell composite materials are potential candidate for EMI shielding applications in X-band frequencies because of their low cost, improved conductivity, better thermal stability, light weight and excellent EMI SE.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1985 - 2010"},"PeriodicalIF":3.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tuning the rheological and mechanical properties of biodegradable PHBH/PLA/PVAc ternary blends via PVAc content control 通过控制聚乳酸含量调节可生物降解PHBH/PLA/PVAc三元共混物的流变学和力学性能

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-04 DOI: 10.1007/s00289-024-05594-2

Yi Li, Jing Guo, Haopeng Wang, Hongda Cheng, Changyu Han, Lijia Zhao

{"title":"Tuning the rheological and mechanical properties of biodegradable PHBH/PLA/PVAc ternary blends via PVAc content control","authors":"Yi Li, Jing Guo, Haopeng Wang, Hongda Cheng, Changyu Han, Lijia Zhao","doi":"10.1007/s00289-024-05594-2","DOIUrl":"10.1007/s00289-024-05594-2","url":null,"abstract":"<div><p>Poly(3-hydroxybutyrate-<i>co</i>-3-hydroxyhexanoate) (PHBH) is a biodegradable and sustainable copolymer that has garnered attention as a suitable alternative to certain types of single-use plastics. Herein, PHBH/poly(lactic acid) (PLA)/poly(vinyl acetate) (PVAc) ternary blends were initially melt compounded in an effort to obtain novel biodegradable materials with balanced properties. The effect of PVAc content on the miscibility, phase morphology, crystallization, rheological and mechanical properties was investigated. The results showed that PVAc component was selectively dispersed in the PLA dispersed phase at low content and migrated into the PHBH matrix when its content increased to 20 wt%. With the increase in PVAc content, the blends melts showed the improved viscosity and elasticity. The interesting aspect was that the mechanical properties of the ternary blends were enhanced by the introduction of PVAc. The increases of 33%, 38%, 54% were achieved in the elongation at break, tensile strength and Young’s modulus of ternary blend containing 20 wt% PVAc compared with neat PHBH. Such combination of increased rheological and mechanical properties would contribute to expanding the practical applications of the biodegradable and sustainable PHBH materials.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1949 - 1972"},"PeriodicalIF":3.1,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of preparation for reactive halloysite loading ZDMA and its thermo-oxidative resistance on the HNBR/FKM composites 负载ZDMA的活性高岭土的制备及其在HNBR/FKM复合材料上的耐热性研究

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-04 DOI: 10.1007/s00289-024-05605-2

Shikun Li, Zhengpeng Du, Fengling Wang, Rongqiang Cai, Daozhuang Li, Hongzhen Wang, Zaifeng Li

{"title":"Investigation of preparation for reactive halloysite loading ZDMA and its thermo-oxidative resistance on the HNBR/FKM composites","authors":"Shikun Li, Zhengpeng Du, Fengling Wang, Rongqiang Cai, Daozhuang Li, Hongzhen Wang, Zaifeng Li","doi":"10.1007/s00289-024-05605-2","DOIUrl":"10.1007/s00289-024-05605-2","url":null,"abstract":"<div><p>Improvement of thermo-oxidative resistance of rubber composite has not been solved well so far, it has always been a focus of research and attracts the great interest of scientists. In this work, a novel reactive halloysite nanotubes (RHNTs) loading zinc methacrylate (ZDMA) as chemical antioxidant were prepared via in situ preparation of zinc methacrylate (ZDMA) in the lumen of halloysite nanotubes (HNTs). The presence of ZDMA in the lumen of halloysite nanotubes was characterized and confirmed by FTIR, TEM, and TGA. The effect of RHNTs on the mechanical properties and thermo-oxidative resistance for HNBR/FKM-blended rubber composites was investigated, respectively. Especially, the RHNTs modified by silane coupling agent exhibited the best dispersibility in HNBR/FKM polymer matrix, and the tensile strength of HNBR/FKM/m<sub>1</sub>-RHNTs composites was much higher than that of blank sample. During thermo-oxidative aging at 150 ℃, all the HNBR/FKM/RHNTs composites did not exhibit extreme value phenomenon of tensile strength due to aging reinforcement within the first 72-h period. The data of DSC curves showed that the HNBR/FKM/m<sub>1</sub>-RHNTs exhibited the minimum Δ<i>Tg</i> among all the samples. Based on the above results, obviously, it was verified that RHNTs showed better reinforcement and thermal oxygen aging resistance effect.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1935 - 1948"},"PeriodicalIF":3.1,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermoresponsive properties of acenaphthylene-labelled chitosan-graft-poly(N-isopropylacrylamide) copolymers 乙烯标记壳聚糖接枝聚n-异丙基丙烯酰胺共聚物的热响应性能

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-04 DOI: 10.1007/s00289-024-05608-z

Migle Savicke, Laura Peciulyte, Joana Bendoraitiene, Volodymyr Samaryk, Ramune Rutkaite

{"title":"Thermoresponsive properties of acenaphthylene-labelled chitosan-graft-poly(N-isopropylacrylamide) copolymers","authors":"Migle Savicke, Laura Peciulyte, Joana Bendoraitiene, Volodymyr Samaryk, Ramune Rutkaite","doi":"10.1007/s00289-024-05608-z","DOIUrl":"10.1007/s00289-024-05608-z","url":null,"abstract":"<div><p>Acenaphthylene-labelled chitosan-<i>graft</i>-poly(<i>N</i>-isopropylacrylamide) (CS-<i>g</i>-PNIPAAm-ACE) copolymers of different composition were synthesized by free-radical polymerization of chitosan (CS), <i>N</i>-isopropylacrylamide (NIPAAm) and acenaphthylene (ACE) in aqueous solution using potassium persulfate (PPS) as an initiator. By changing the molar ratio of CS:NIPAAm:ACE from 1:0.25:0.0125 to 1:10:0.11 the ACE-labelled copolymers with different content of poly(N-isopropylacrylamide) (PNIPAAm) grafts were prepared. The chemical structure of the obtained CS-<i>g</i>-PNIPAAm-ACE copolymers was confirmed by FT-IR and <sup>1</sup>H NMR spectroscopy. In addition, <sup>1</sup>H NMR spectra were also used to calculate the content of CS and NIPAAm in the synthesized copolymers. The introduction of ACE label into PNIPAAm grafts was also achieved as confirmed by UV spectroscopy. Moreover, the lower critical solution temperature (LCST) behaviour of synthesized copolymers was assessed by cloud point, differential scanning calorimetry (DSC) analysis, particle size, zeta potential and steady-state fluorescence measurements. The aqueous solutions of copolymers containing ≥ 26.5 molar percent of PNIPAAm side chains demonstrated LCST behaviour with the phase separation at around 29.3–31.3 °C. The intensity of thermoresponsiveness depended on the composition of copolymers and was higher for the copolymers with higher content of poly(N-isopropylacrylamide) moieties. Moreover, ACE chromophore attached to PNIPAAm grafts served as a fluorescent marker in the steady-state fluorescence investigation of thermoresponsive behaviour of synthesized copolymers.</p></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1893 - 1914"},"PeriodicalIF":3.1,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and physical–chemical characterization of chitosan grafted with hyaluronic acid as potential application in biomaterials 透明质酸接枝壳聚糖的合成及其在生物材料中的应用前景

IF 3.1 3区化学

Polymer Bulletin Pub Date : 2024-12-04 DOI: 10.1007/s00289-024-05595-1

Winicius Ruis de Souza, Bruna V. Quevedo, Pâmela Soto Garcia, Lucas Camargo Soares Carvalho da Silva, Daniel Komatsu, Eliana Aparecida de Rezende Duek

{"title":"Synthesis and physical–chemical characterization of chitosan grafted with hyaluronic acid as potential application in biomaterials","authors":"Winicius Ruis de Souza, Bruna V. Quevedo, Pâmela Soto Garcia, Lucas Camargo Soares Carvalho da Silva, Daniel Komatsu, Eliana Aparecida de Rezende Duek","doi":"10.1007/s00289-024-05595-1","DOIUrl":"10.1007/s00289-024-05595-1","url":null,"abstract":"<div><p>Chitosan (Chit) is a naturally derived polymer with significant potential for applications in medicine and pharmacology. Despite its biological activity, biocompatibility, cost-effectiveness, biodegradability, and low toxicity, Chit limited water solubility at pH < 6, restricts its use in biological fields, especially in medicine. To overcome this limitation, the study proposes the graphitization of Chit with hyaluronic acid (HA) (Chit-HA). The graphitization was confirmed by Fourier Transform Infrared Spectroscopy (FTIR) and Hydrogen Nuclear Magnetic Resonance Spectroscopy (<sup>1</sup>H NMR) analysis. In this work the grafting yield percentage was 75.2%<i>.</i> Thermogravimetric Analysis (TGA) showed an increasing stage of mass loss for Chit-HA, attributed to the decomposition of HA in the Chit chain. Differential Scanning Calorimetry (DSC) revealed a new exothermic peak at 256.9 °C for Chit-HA, indicating the thermal degradation of HA grafted onto the Chit chain. Solubility assay demonstrated an increase in water solubility for Chit-HA compared to Chit. In contrast to the Chit sample, the Zeta Potential measurements of Chit-HA exhibited negative charge throughout the analyzed pH range. Therefore, the results confirm the successful grafting of Chit with HA, resulting in a new material with potential application in the biomedical field.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":737,"journal":{"name":"Polymer Bulletin","volume":"82 6","pages":"1915 - 1933"},"PeriodicalIF":3.1,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143594640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0