Polymer最新文献

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Enhancing the impact resistance and damage tolerance of 3D fibre-reinforced thermoplastic composites through tri-block copolymers matrix toughening 通过三嵌段共聚物基体增韧提高三维纤维增强热塑性复合材料的抗冲击性和损伤容限

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-31 DOI: 10.1016/j.polymer.2026.129683

S.M. Hussnain, S.Z.H. Shah, M.Z. Hussain, P.S.M. Megat-Yusoff, Syed Zahid Hussain

引用次数: 0

Impact of Amino Functionalization on Gelation Properties of Random Terpolymer of Oligo(Ethylene Glycol) Methacrylates in Water and Physiological Media 氨基功能化对低聚（乙二醇）甲基丙烯酸酯无规三元共聚物在水和生理介质中胶凝性能的影响

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-30 DOI: 10.1016/j.polymer.2026.129652

D. Lipowska-Kur, Ł. Otulakowski, K. Filipek, K. Jelonek, A. Utrata-Wesołek, P. Groch

引用次数: 0

Brick-mud structured epoxy/boron nitride thermally conductive composites based on hot-pressing technology 基于热压技术的砖泥结构环氧/氮化硼导热复合材料

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-30 DOI: 10.1016/j.polymer.2026.129655

Xiaowei Lu, Zijian Wu, Yue Zhao, Zhaojun Wang, Yue Zhang, Mingpeng He, Mingqi Sun, Ning Guo, Hassan Algadi, Ling Weng, Juanna Ren, Renbo Wei, Junguo Gao

引用次数: 0

Manipulating the Miscibility of Epoxy/Bismaleimide Blends to Enhance High-Temprature Strength of GFR Composites 控制环氧树脂/双马来酰亚胺共混物的混相以提高GFR复合材料的高温强度

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-30 DOI: 10.1016/j.polymer.2026.129676

Sedigheh Irani, Mehrzad Mortezaei, S.Mahdiye Fathollahi, Hassan Fattahi

引用次数: 0

Molecular descriptor-driven machine learning for predicting polymer glass transition temperature 分子描述符驱动的机器学习预测聚合物玻璃化转变温度

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-29 DOI: 10.1016/j.polymer.2026.129612

Yan Zhou, Yue Zhao, Jiayi Li, Chunfa Miao, Hongru Zhang, Jianguang Qi, Yinglong Wang, Huairong Zhou, Yufeng Hu

引用次数: 0

Multistep Synthesis of Heterocyclic Schiff Base–Derived Polybenzoxazines for Direct Carbonization into N, O, S-Co-Doped Microporous Carbons with Dual CO2 Capture and Supercapacitor Performance 多步合成希夫碱衍生杂环聚苯并恶嗪直接碳化成N， O， s共掺杂微孔碳，具有双CO2捕集和超级电容器性能

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-29 DOI: 10.1016/j.polymer.2026.129674

Yun-Chien Zheng, Shimaa Abdelnaser, Yousra M. Nabil, Mostafa Sayed, Shiao-Wei Kuo, Chih-Feng Wang, Mostafa Ahmed, Ahmed F.M. EL-Mahdy

引用次数: 0

Polymeric micelles and hydrogels: Tailored synthesis strategies and biomedical applications 高分子胶束和水凝胶：定制合成策略和生物医学应用

IF 4.5 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-29 DOI: 10.1016/j.polymer.2026.129650

Kalipada Manna , Arpita Roy , Sagar Pal

The design and development of multifunctional polymers have advanced significantly, enabling precise responses specific to environmental and biological stimuli. This Feature Article highlights our group's contribution toward the design and development of various stimuli-responsive polymer micelles and hydrogels with precise structural and functional control. The amphiphilic copolymers have been designed using reversible addition-fragmentation chain transfer (RAFT) polymerization and have been characterized with controlled molecular weight and narrow dispersity (Đ≈1.3 or less), indicating controlled polymerization. These copolymers self-assemble into micelles with tunable sizes (80–200 nm), controlled drug release profiles, and responsiveness to stimuli, including pH, temperature, redox potential, and light. On the other hand, the hydrogel systems exhibit tunable physical properties such as porosity and strength, enabling applications in co-delivery, hemostasis, and bioelectronics. One of the hydrogels designed from β-cyclodextrin and poly(N-vinyl imidazole) demonstrates excellent hemostatic behavior, revealing less than 1.3 % hemolysis, which is comparable to or even better than that of commercially available hemostats. These materials have been found to be biocompatible and emphasize the potential of molecular-level control in developing adaptive systems for clinical and biomedical applications.

多功能聚合物的设计和开发取得了重大进展，能够对环境和生物刺激做出精确的反应。这篇专题文章强调了我们团队在设计和开发具有精确结构和功能控制的各种刺激响应聚合物胶束和水凝胶方面的贡献。采用可逆加成-破碎链转移（RAFT）聚合设计了两亲共聚物，其分子量可控，分散性窄（Đ≈1.3或更小），表明两亲共聚物是可控聚合。这些共聚物自组装成胶束，大小可调（80 - 200nm），药物释放曲线可控，对pH、温度、氧化还原电位和光线等刺激具有响应性。另一方面，水凝胶系统表现出可调节的物理特性，如孔隙度和强度，使其在共输送、止血和生物电子学方面的应用成为可能。其中一种由β-环糊精和聚（n -乙烯基咪唑）设计的水凝胶表现出优异的止血性能，溶血率低于1.3%，与市售的止血剂相当甚至更好。这些材料已被发现具有生物相容性，并强调了分子水平控制在开发临床和生物医学应用的自适应系统中的潜力。

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引用次数: 0

Molecular dynamics unveils compatibility between aromatic ester-based liquid crystalline epoxy and diamine curing agent for enhanced intrinsic thermal conductivity 分子动力学揭示了芳香族酯基液晶环氧树脂和二胺固化剂之间的相容性，以增强固有导热性

IF 4.5 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-29 DOI: 10.1016/j.polymer.2026.129673

Pan Tian, Wanjing Liu, Yisen Huang, Weiyouran Hong, Junhua Zhang

Liquid crystal epoxy resins (LCERs) exhibit superior thermal conductivity compared to conventional epoxy resins due to their locally ordered thermal conduction networks. However, challenges remain in further enhancing structural ordering through molecular design. To gain a better understanding of the interplay between liquid crystal molecules and diamine curing agents, this study developed an integrated methodology combining molecular design, simulation verification, and experimental characterization. Three aromatic monomers: p-hydroxybenzoic acid (HBA), 2-hydroxy-6-naphthoic acid (HNA), and 4′-hydroxybiphenyl-4-carboxylic acid (HBPA)—were esterified with hydroquinone (HQ), respectively, under a concentrated sulfuric acid/boric acid catalytic system, then successfully synthesized with epichlorohydrin three LCE monomers (BEBDE, BENDE, and BEPDE). Molecular dynamics simulations and experimental analyses revealed two critical mechanisms: (1) Diamine curing agents feature low binding energy with LCE, high solubility parameter mismatch with LCE, and small molecular volume can significantly enhance thermal conductivity by preserving the liquid crystalline alignment. (2) Increasing the aspect ratio of mesogenic units can enhance molecular rigidity and increase the proportion of ordered phases in the system, thereby facilitating the improvement of thermal conductivity. As a consequence, the thermal conductivity of resin BEPDE cured with 1,5-naphthalene diamine (NDA) is 0.35 W/(m K). This study explores the molecular design strategies for high-intrinsic-thermal-conductivity aromatic ester-based epoxy resins, providing some theoretical insights and practical strategies.

液晶环氧树脂（lcer）由于其局部有序的热传导网络，与传统环氧树脂相比，表现出优越的导热性。然而，通过分子设计进一步提高结构有序性仍然存在挑战。为了更好地了解液晶分子与二胺固化剂之间的相互作用，本研究开发了一种结合分子设计、模拟验证和实验表征的综合方法。在浓硫酸/硼酸催化体系下，对羟基苯甲酸（HBA）、2-羟基-6-萘酸（HNA）和4′-羟基联苯-4-羧酸（HBPA）三种芳香单体分别与对苯二酚（HQ）酯化，然后与环氧氯丙烷三种LCE单体（BEBDE、BENDE和BEPDE）成功合成。分子动力学模拟和实验分析揭示了两个关键机理：(1)二胺类固化剂与LCE的结合能低，与LCE的溶解度参数高失配，小分子体积可以通过保持液晶排列而显著提高导热系数。(2)增加介系单元长径比可以增强分子刚性，增加体系中有序相的比例，从而有利于导热系数的提高。因此，用1,5-萘二胺（NDA）固化的BEPDE树脂的导热系数为0.35 W/(m K)。本研究探讨了高本征热导率芳香族酯基环氧树脂的分子设计策略，提供了一些理论见解和实践策略。

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引用次数: 0

Non-solvent preparation of polyurethane adhesive with capabilities of shape adaptive, harsh environment resistance and cryogenic durability 无溶剂制备具有形状适应性、耐恶劣环境和低温耐久性的聚氨酯胶粘剂

IF 4.5 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-29 DOI: 10.1016/j.polymer.2026.129621

Sisi Cheng , Xuequan Ma , Meishan Fu , Dongqi Wang , Zhihong Wang , Xiaojing Dai , Jiacheng Xu , Jianwei Chen , Lijing Han , Ruoyu Zhang

Adhesives that can be used in harsh environments are usually prepared via complicate synthesis route and using of organic solvents, and they usually lack immediate adhesion and shape adaptive. In this work, non-isocyanate polyurethane using PDMS as the sole soft segment is prepared via a non-solvent route, and it was then crosslinked by the dynamic boronic ester bonds. The shape of the resulting adhesive can be quickly molded by hand, which facilitate its usage in sealing irregular damages. It also demonstrates long-term effectiveness after in-situ adhesion on various substrate types under harsh environmental conditions, including exposure to simulated seawater, pH = 1 hydrochloric acid, pH = 10 sodium hydroxide solution, and ethylene glycol. Its in-situ adhesion strength in liquid nitrogen (LN) can reach 7.1 MPa. When adhered in air and then stored in LN for 15 days, the adhesion strength was as high as ∼14 MPa. Moreover, the adhesive exhibited remarkable toughness at approximately −90 °C, as shown by its ability to support a 200 g weight dropped from a height of 180 cm, corresponding to an impact energy of 3.5 J. These tough and adhesive UD-BAs show high potential in damage sealing and aerospace travelling etc.

能在恶劣环境下使用的胶粘剂通常是通过复杂的合成路线和使用有机溶剂制备的，通常缺乏即时附着力和形状适应性。本文通过非溶剂途径制备了以PDMS为底软段的非异氰酸酯聚氨酯，并通过动态硼酯键进行交联。所得到的胶粘剂的形状可以用手快速成型，这有利于它在密封不规则损伤的使用。在恶劣的环境条件下（包括暴露于模拟海水、pH = 1的盐酸、pH = 10的氢氧化钠溶液和乙二醇），在各种类型的基材上原位粘附后也显示出长期的有效性。其在液氮（LN）中的原位粘附强度可达7.1 MPa。在空气中粘附，然后在LN中保存15天，粘附强度高达~ 14 MPa。此外，粘合剂在约- 90°C时表现出显著的韧性，其能够支撑从180厘米高度下降的200克重量，相当于3.5 j的冲击能量。这些坚韧的粘合剂在损伤密封和航空航天旅行等方面显示出很高的潜力。

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引用次数: 0

A PDMS/m-PP Hybrid Membrane with High Oxygen Transmittance as a Potential Building Block for 3D Printing Applications 具有高氧透过率的PDMS/m-PP混合膜作为3D打印应用的潜在构建块

IF 4.6 2区化学 Q2 POLYMER SCIENCE

Polymer

Pub Date : 2026-01-28 DOI: 10.1016/j.polymer.2026.129665

Haoxin Fu, Zidi Hao, Xiaohan Qiao, Ruona Li, Lixue Liu, Lei Zhang, Xueting Zhao, Na Tang

引用次数: 0

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