Journal of Polymer Science最新文献_第10页

Synthesis of Ferrocene-Containing Schiff Bases Based on 3-Aminopropyltriethoxysilane Oligomers for Covalent Modification of Glass Surfaces and Creation of Soft Magnetic Materials 基于 3-氨基丙基三乙氧基硅烷低聚物的含二茂铁席夫碱的合成，用于共价改性玻璃表面和创建软磁材料

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-13 DOI: 10.1002/pol.20240629

Raisa Dvorikova, Galy Markova, Anton Shulgin, Ludmila Komarova, Oleg Baranov, Igor Shchetinin, Dmitry Bagrov, Mikhail Buzin, Zinaida Klemenkova, Yaroslav Mezhuev

{"title":"Synthesis of Ferrocene-Containing Schiff Bases Based on 3-Aminopropyltriethoxysilane Oligomers for Covalent Modification of Glass Surfaces and Creation of Soft Magnetic Materials","authors":"Raisa Dvorikova, Galy Markova, Anton Shulgin, Ludmila Komarova, Oleg Baranov, Igor Shchetinin, Dmitry Bagrov, Mikhail Buzin, Zinaida Klemenkova, Yaroslav Mezhuev","doi":"10.1002/pol.20240629","DOIUrl":"10.1002/pol.20240629","url":null,"abstract":"<div>\u0000 \u0000 <p>A ferrocene-containing oligoorganosiloxane with a number-average degree of polymerization of 8.8 and a number-average molecular weight of 3200 is synthesized by hydrolytic condensation of 3-aminopropyltriethoxysilane followed by chemical modification of the resulting oligomer with acetylferrocene. Its structure is characterized by MALDI-TOF, NMR and IR spectroscopy. <sup>1</sup>H NMR spectroscopy shows the predominance of more thermodynamically stable units containing <i>anti</i>-configuration Schiff bases. Using IR spectroscopy as well as experimental determination of surface energy and its polar (acid–base) and dispersion components, the covalent immobilization of ferrocene-containing oligoorganosiloxane on a glass surface after heating at 110°C is shown. The formed coating provides hydrophobization, acid–base indifference of the glass surface and serves as a precursor for the formation of magnetically soft materials after pyrolysis in argon already at 350°C. The main stages of ferrocene-containing oligoorganosiloxane thermal destruction in an inert atmosphere and the formation of a mixture of iron and silicon oxides during its thermal oxidative destruction are established by combination of TGA/DTA, IR spectroscopy and elemental analysis. The proposed approach opens up new possibilities for functionalizing silicates surfaces, creating magnetic glasses, as well as regulating surface energy and its components.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"429-442"},"PeriodicalIF":3.9,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637030","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

Regulation of Glass Transition Temperature in Thermo-Responsive Epoxy Shape Memory Polymers: The Roles of Chemical Crosslinking Density and Chain Flexibility 热响应环氧形状记忆聚合物玻璃化温度的调节：化学交联密度和链柔性的作用

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-11 DOI: 10.1002/pol.20240728

Yijia Guan, Hui Guo, Xiaofeng Jia, Jieyi Qin, Yue Yang, Kun Cao, Tao Li, Jianguo Liao, Yanru Zhang

{"title":"Regulation of Glass Transition Temperature in Thermo-Responsive Epoxy Shape Memory Polymers: The Roles of Chemical Crosslinking Density and Chain Flexibility","authors":"Yijia Guan, Hui Guo, Xiaofeng Jia, Jieyi Qin, Yue Yang, Kun Cao, Tao Li, Jianguo Liao, Yanru Zhang","doi":"10.1002/pol.20240728","DOIUrl":"10.1002/pol.20240728","url":null,"abstract":"<div>\u0000 \u0000 <p>Shape memory polymers (SMPs) are novel kinds of smart materials whose shape can be changed in external conditions such as heat stimulus. Due to their excellent structural versatility and high elastic strain, they have important applications in the field of biomaterials. Here, a series of amorphous shape memory polymer materials are prepared and their shape memory properties and glass transition temperature (<i>T</i>\u0000 <sub>g</sub>) are also investigated. A special kind of epoxy polymer, whose shape can be changed at around physiological temperature, is synthesized by regulating the crosslinking density and introducing flexible aliphatic epoxy chains. The shape memory function of this epoxy polymer is studied by deformation test. In addition, to explore their application in the field of biomedical materials, the biocompatibility of the materials are evaluated, including the effects on the erythrocyte hemolysis rate and cell activity. The experimental results show that this kind of epoxy polymer has good shape memory function and biocompatibility.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"406-416"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637032","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

Non-Isocyanate Carbamate Acrylates: Synthesis, Characterization, and Applications in UV 3D Printing

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-11 DOI: 10.1002/pol.20240727

Jiangdi Yin, Xinqi Zhang, Xinxin Zan, Jiaxi Wang

{"title":"Non-Isocyanate Carbamate Acrylates: Synthesis, Characterization, and Applications in UV 3D Printing","authors":"Jiangdi Yin, Xinqi Zhang, Xinxin Zan, Jiaxi Wang","doi":"10.1002/pol.20240727","DOIUrl":"https://doi.org/10.1002/pol.20240727","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, two synthetic routes for non-isocyanate carbamate acrylates (CAs) were explored. Four amino alcohols reacted with ethylene carbonate respectively forming carbamate alcohols. Additionally, carbamate amines were synthesized through the reaction of diethylene glycol with dimethyl carbonate, followed by the reaction of 4-methylcyclohexane-1,3-diamine. Five kinds of CAs were synthesized via <i>oxa</i>-Michael addition of carbamate alcohols and <i>aza</i>-Michael reactions of carbamate amines with neopentyl glycol diacrylate (NPGDA), respectively. The resulting intermediates and final CAs were characterized by electrospray ionization high-resolution mass spectrometry (ESI-HRMS), <sup>1</sup>H NMR, and FT-IR spectroscopy. The photopolymerization kinetics of the CAs were investigated using FT-IR spectroscopy. Under UV irradiation and initiation by 1 wt% 2-isopropylthioxanthone (ITX) for 30 s, the double bond conversion of the CAs synthesized by <i>oxa</i>-Michael addition were over 95%. The resulting CAs can be UV cured to form a transparent film with a gel content of 90%–95%, a hardness of 4–5 H, and a flexibility of 1 mm. A formulation consisting of 79 wt% CA2, 20 wt% NPGDA, and 1 wt% ITX was applied for 3D printing to produce various models with smooth surfaces, high precision, and excellent flexibility.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"417-428"},"PeriodicalIF":3.9,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114283","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

Localized Thermoresponsive Behavior in P(NIPAm-co-AAc) Copolymers: Structural Insights From Rheology and Small Angle X-Ray Scattering P(NIPAm-co-AAc)共聚物的局部热致伸缩行为：流变学和小角 X 射线散射的结构启示

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-10 DOI: 10.1002/pol.20240799

S. P. Fernandez Bordín, E. Rufeil Fiori, J. M. Padró, V.M. Galván Josa, T. S. Plivelic, M. R. Romero

{"title":"Localized Thermoresponsive Behavior in P(NIPAm-co-AAc) Copolymers: Structural Insights From Rheology and Small Angle X-Ray Scattering","authors":"S. P. Fernandez Bordín, E. Rufeil Fiori, J. M. Padró, V.M. Galván Josa, T. S. Plivelic, M. R. Romero","doi":"10.1002/pol.20240799","DOIUrl":"10.1002/pol.20240799","url":null,"abstract":"<p>Stimuli-responsive polymers stand out for their ability to respond to small environmental changes. One of the most representative thermo-sensitive materials is poly(<i>N</i>-isopropyl acrylamide) (PNIPAm), which presents reversible phase transitions close to the human body temperature. However, previous studies observed that the copolymerization of NIPAm with small quantities of different monomers like acrylic acid (AAc) results in copolymers with reduced or lost thermo-responsivity. In this study, thermo-sensitive PNIPAm, pH-sensitive poly(acrylic acid) (PAAc), and various proportions of their copolymers P(NIPAm-<i>co</i>-AAc) were obtained by free radical polymerization and thoroughly characterized. Rheological and structural studies reveal the remaining thermosensitivity of the copolymers manifested at short molecular ranges. These alterations in short-range interactions are observed in all samples containing NIPAm, and they are evidenced by changes in the fractality of their structure and flow index behavior of the Viscosity Ostwald–de Waele Model. Particularly, when the copolymer proportion of NIPAm/AAc is about 40/60, the Beaucage model reveals two structural levels, ~200 and ~10 nm. Furthermore, the model exhibits a thermal response of the lower-size substructures, indicating possible segregation of NIPAm-rich regions from copolymer chains. The evidence found in this work could contribute to the development of nanosystems, in which local thermoresponsive effects are sought, such as for active drug targeting.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"393-405"},"PeriodicalIF":3.9,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20240799","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Preparation of Lipid–Polymer Conjugates by Photoiniferter Polymerization and Application to Cell Surface Modification 通过光iferter 聚合法制备脂质聚合物共轭物并将其应用于细胞表面修饰

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-10 DOI: 10.1002/pol.20240850

Wenjin Wang, Shengjie Liu, Yijia Yu, Wenjuan Xia, Zhaoqiang Wu, Hong Chen

{"title":"Preparation of Lipid–Polymer Conjugates by Photoiniferter Polymerization and Application to Cell Surface Modification","authors":"Wenjin Wang, Shengjie Liu, Yijia Yu, Wenjuan Xia, Zhaoqiang Wu, Hong Chen","doi":"10.1002/pol.20240850","DOIUrl":"10.1002/pol.20240850","url":null,"abstract":"<div>\u0000 \u0000 <p>The growing demand for lipid–polymer conjugates (LPCs) in biomedicine highlights the need for efficient synthesis methods. This study presents a novel Y-type photoiniferter reagent (Lipid-PIT) with a diethyldithiocarbamate group and a diacylglycerol group. Lipid-PIT efficiently initiated the polymerization of vinyl monomers such as oligo(ethylene glycol) methacrylate (OEGMA), <i>N</i>,<i>N</i>-dimethylacrylamide (DMA), <i>tert</i>-butyl acrylate (tBA), and <i>n</i>-butyl acrylate (<i>n</i>BA) under UV irradiation at room temperature, yielding LPCs. Proton NMR confirmed the presence of diethyldithiocarbamate and diacylglycerol moieties at the chain ends. The polymerization kinetics of DMA showed a linear increase in molecular weight (<i>M</i>\u0000 <sub>n</sub>) with time, with a polydispersity (Đ) below 1.50, demonstrating high controllability. Moreover, Lipid-PIT allows for the creation of block copolymers via secondary chain extension. In vitro assays revealed that LPCs synthesized from OEGMA monomers successfully modified L929 and HeLa cell surfaces and exhibited good biocompatibility. This study offers a rapid, efficient method for LPC synthesis with promising biomedical applications.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"383-392"},"PeriodicalIF":3.9,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637041","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

Efficient and Scalable Synthesis of CO2-Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-07 DOI: 10.1002/pol.20240621

Jingyao Yin, Xin Huang, Tingting Zhao, Min Xiao, Dongmei Han, Sheng Huang, Shuanjin Wang, Yuezhong Meng

{"title":"Efficient and Scalable Synthesis of CO2-Based Polycarbonate Diols With Difunctional Initiator and Proton Exchange Agent","authors":"Jingyao Yin, Xin Huang, Tingting Zhao, Min Xiao, Dongmei Han, Sheng Huang, Shuanjin Wang, Yuezhong Meng","doi":"10.1002/pol.20240621","DOIUrl":"https://doi.org/10.1002/pol.20240621","url":null,"abstract":"<div>\u0000 \u0000 <p>CO<sub>2</sub>-based polycarbonate diols (PPCDLs) are important raw materials. PPCDLs with high carbonate linkage (up to 99%) were controllably synthesized in high efficiency from CO<sub>2</sub> and propylene oxide (PO) by synchronously using tetrabutyl ammonium salt of succinic (ASA) as a difunctional initiator and 1,4-butanediol (BDO) as a difunctional proton exchange agent (PEA) in the presence of triethyl borane (TEB). In this system, the difunctional initiator (ASA) with two carboxylic anions accelerates the polymer chain propagation process, and the difunctional PEA with two active protons facilitates the proton exchange process. The molecular weight and production efficiency of PPCDL can be finely tailored by varying the feed molar ratios of PO to ASA, TEB, and BDO. Upon optimizing this scalable process, the PPCDLs with molecular weights between 1000 and 3000 Da are produced in high yields with a reaction time of 8–12 h, which is much faster than the monofunctional initiator in the presence of BDO (typically 20–36 h) or consumes much less amount of TEB and initiator in the absence of BDO. The synthesized PPCDLs possess a high 1<sup>o</sup>OH content of the terminal hydroxyl groups and a high carbonate content. Thermoplastic poly(carbonate urethane)s (PCUs) are synthesized by copolymerization of the title PPCDLs, 4,4′-dicyclichexylmethane diisocyanate (HMDI) and BDO. Due to their high transparency and excellent mechanical properties, PCUs have great potential in the polyurethane industry, such as coatings, adhesives, leather, and thermoplastics.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"372-382"},"PeriodicalIF":3.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143112822","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

Rapid Synthesis of Self-Healing, pH-Responsive IA-Based Hydrogels via Frontal Polymerization

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-04 DOI: 10.1002/pol.20240687

Muhammad Irfan, Jiang Zhai, Qing Li, Su Chen, Guo-Xing Li, Ji Jun Xiao

{"title":"Rapid Synthesis of Self-Healing, pH-Responsive IA-Based Hydrogels via Frontal Polymerization","authors":"Muhammad Irfan, Jiang Zhai, Qing Li, Su Chen, Guo-Xing Li, Ji Jun Xiao","doi":"10.1002/pol.20240687","DOIUrl":"https://doi.org/10.1002/pol.20240687","url":null,"abstract":"<div>\u0000 \u0000 <p>Self-healing polymeric gels have emerged as a promising class of materials due to their ability to repair damage autonomously, offering significant advantages for various applications. Nevertheless, a major hurdle to their widespread practical use lies in their often-compromised mechanical strength and long reaction time. Herein, we present the synthesis of a new type of self-healing hydrogels using poly(itaconic acid-co-hydroxypropyl alcohol-co-acrylic acid), also known as poly(IA-co-HPA-co-AAc), by a frontal polymerization (FP) method. The rapid reaction rate of FP facilitates the swift and energy-efficient synthesis of the hydrogels within 10 min, eliminating the need for prolonged reaction times. Additionally, the results revealed that the synthesized hydrogels exhibited pH-dependent responsiveness, robust mechanical integrity, and autonomous self-healing capabilities, obviating the requirement for external stimuli. The exceptional self-healing properties can be attributed to the extensive hydrogen bonding network between the polymer chains, enabling them to recover up to 80% of their original mechanical strength. Rheological analysis confirmed the presence of a robust and stable gel network, evidenced by high storage modulus (<i>G</i>′) values across the entire frequency and strain sweep tests. This research addresses a significant knowledge gap in IA-based hydrogels by introducing a rapid, optimized method for constructing self-healing materials through hydrogen bonding interactions.</p>\u0000 </div>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"342-357"},"PeriodicalIF":3.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111950","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

Physicochemical Mechanism of Flame-Retardant Enhancement for Elastomeric Polyurea: A Mini-Review

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-04 DOI: 10.1002/pol.20240453

Yuanzhe Li, Haoyi Yang, Xinze Chen, Diannan Liu

{"title":"Physicochemical Mechanism of Flame-Retardant Enhancement for Elastomeric Polyurea: A Mini-Review","authors":"Yuanzhe Li, Haoyi Yang, Xinze Chen, Diannan Liu","doi":"10.1002/pol.20240453","DOIUrl":"https://doi.org/10.1002/pol.20240453","url":null,"abstract":"<p>Polyurea coatings are widely used in various industries due to their excellent mechanical properties, such as high tensile strength, abrasion resistance, and chemical resistance. However, their lack of inherent flame retardancy limits their use in applications where fire safety is critical. Therefore, reinforcing the fire-retardant properties of traditional polyurea through various means can effectively protect the product while reducing the risk of fire. This paper provides a summary of several advanced methods for improving flame retardancy. It systematically analyzes the advantages and disadvantages of these methods and proposes improvement measures to enhance efficiency. Additionally, the paper proposes new methods to increase the fire resistance of polyurea. These include the addition of new flame-retardant additives and the substitution of the backbone of polyurea, making it suitable for more industrial applications. This mini-review can also serve as a valuable reference for future research on improving the flame retardancy of elastomeric polyurea materials.</p>","PeriodicalId":16888,"journal":{"name":"Journal of Polymer Science","volume":"63 2","pages":"358-371"},"PeriodicalIF":3.9,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/pol.20240453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

100th Anniversary Celebration of Sun Yat-sen University (SYSU): Polymer Research in SYSU 中山大学 100 周年庆典：中山大学的聚合物研究

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-01 DOI: 10.1002/pol.20240882

Yi Shi, Jun Fu, Yongming Chen

引用次数: 0

Cover Image, Volume 62, Issue 21 封面图片，第 62 卷第 21 期

IF 3.9 3区化学

Journal of Polymer Science Pub Date : 2024-11-01 DOI: 10.1002/pola.31366

Runcheng Tan, Guangqi Huang, Cong Wei, Zepeng He, Tianyu Zhao, Yi Shi, Zhijia Liu, Yongming Chen

引用次数: 0