最新刊期
- 摘要：Self-powered smart clothing requires conformable wearability, continuous energy harvesting, signal sensing, wash durability, and skin-contact safety. Polymer thermoelectric materials can convert the low-grade temperature difference between the human body and the environment into electrical energy or self-powered sensing signals. Their low thermal conductivity, mechanical flexibility, solution processability, and textile compatibility render them promising candidates for garment-integrated energy harvesters and passive sensors. This review summarizes recent progress in p-type poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) systems, polymer/carbon composites, n-type polymers, polymeric multi-heterojunctions, printed thermoelectrics, thermoelectric fibers, and three-dimensional textile-based heat-flow management, with an emphasis on key mechanisms, including polyamine-induced dedoping, interfacial energy filtering, defect suppression in n-type poly(benzodifurandione) (PBFDO) polymers, interfacial thermal scattering, and nanobinder-assisted printing. By comparing the low-temperature-gradient output, response time, recognition accuracy, mechanical cycling, wash durability, sweat stability, and biocompatibility, this review emphasizes that polymer thermoelectric smart clothing should be evaluated using an integrated “material parameter–device output–wearable reliability” framework rather than by power factor (PF) dimensionless thermoelectric figure of merit (ZT) alone. Future studies should focus on thermal-electrical transport decoupling, n-type polymer stability, three-dimensional heat-flow management, and standardized reliability testing to promote practical applications in self-powered smart clothing systems.关键词：Polymer thermoelectrics;Self-powered;Smart clothing;Poly(3,4-ethylenedioxythiophene): poly(styrene sulfonate);N-type polymer2|0|0更新时间：2026-10-13
- 摘要：This study addresses curriculum design for graduate education in polymer science within the New Engineering framework. Through in-depth analysis of the characteristics of the polymer discipline and the education objective, we propose a curriculum system structured around the “fundamental-frontier-practice” framework, emphasizing basic courses that integrate fundamental theories with cutting-edge technologies. The curriculum features foundational knowledge depth, interdisciplinary integration, and industry relevance. This study presents a strategic plan for graduate education in polymer science to support the independent innovation and sustainable development of the advanced materials industry in China.关键词：Graduate education;Curriculum design;Polymer;Basic course;New engineering5|4|0更新时间：2026-10-12
- 摘要：Ionogels overcome the environmental sensitivity of hydrogels, which are prone to evaporation and freezing. They exhibit excellent properties such as high ionic conductivity and thermal stability, showing great potential in flexible electronics, soft robotics, and energy storage. However, simple network structures often fail to simultaneously achieve mechanical robustness, ionic conductivity, and self-healing capability, which limits their practical applications. This review categorizes existing design strategies into molecular engineering and structural engineering based on the regulation scale and underlying mechanisms. Molecular engineering focuses on dynamic network design at the sub-nanometer to nanometer scale, including double networks, chain entanglement, sliding ring effects, hydrogen bonding, ionic interactions, metal coordination, dynamic covalent bonds, and synergistic effects. Structural engineering addresses spatial configuration regulation from the nanometer to micrometer scale, including microphase separation, nanocrystalline domains, nanocomposites, oriented structures, and gradient structures. Furthermore, this review summarizes the progress of ionogels in applications such as energy storage and conversion, flexible sensing, and soft robotics. This article systematically outlines the design approaches and application advances in ionogels, and discusses key challenges for future development, aiming to provide a reference for the rational design of high-performance ionogels and device integration.关键词：Ionogels;Mechanical properties;Electrical properties;Self-healing7|10|0更新时间：2026-10-10
- 摘要：With the rapid development of electrified transportation, aerospace, high-power power systems, and other fields, stringent requirements have been proposed for dielectrics used in high-energy-density capacitors to achieve stable service under high temperature and high electric fields. Polymer dielectrics possess the advantages of light weight, flexibility, and excellent processability, making them candidate materials with great application potential. However, existing polymer dielectric materials generally suffer from operating temperature limitations and cannot withstand thermo-electric coupling stress. However, the improvement of the dielectric constant is usually at the cost of reduced breakdown strength and increased dielectric loss, and this trade-off dilemma has become a core problem restricting their practical application. Therefore, developing intrinsic high-dielectric-constant polymers through molecular structure design to realize the collaborative optimization of dielectric and energy storage performances has become an important research direction in this field. This paper systematically reviews the latest research progress on the relationship between the molecular structure design and dielectric properties of dielectric polymers. This study emphasizes the regulation mechanism of molecular structure on dielectric response and energy storage behavior, and reveals the key structure-activity relationship. Finally, this review summarizes the existing challenges and future development opportunities in this field, aiming to provide guidance at the molecular design level for the exploitation of high-performance polymer dielectric materials with efficient and reliable energy storage performance under high temperatures and high electric fields.关键词：Intrinsic polymer dielectrics;High dielectric constant;Molecular structure design;Structure-property relationship5|10|0更新时间：2026-10-10
- 摘要：This study investigates the statistical fracture behavior of metallocene polyethylene films. The results indicate that mechanical parameters become more concentrated with increasing stretching temperature, due to enhanced microstructural uniformity from the annealing effect. In contrast, the dispersion of modulus and yield stress widens with increasing strain rate due to amplified crystalline differences at high strain rates. However, at high strain rates, molecular chains cannot fully relax, causing pronounced local stress concentration, which narrows the distribution of fracture-related parameters. Regarding statistical models, mechanical parameters approximately follow a Gaussian distribution. While the Weibull distribution may not suit for modulus and yield stress, it can effectively describe fracture-related parameters. The Weibull function effectively describes ductile fracture behavior, implying that, to some extent, ductile fracture also follows the “weakest-link theory”, i.e., the final fracture is governed by the most severe defect.关键词：Metallocene polyethylene film;Tensile temperature;Strain rate;Gaussian distribution;Weibull distribution6|9|0更新时间：2026-10-10
- 摘要：With the rapid development of artificial intelligence (AI) technology, higher education is facing unprecedented opportunities for transformation. As a core course in the field of materials science and engineering, “Composites” features strong interdisciplinarity, theoretical abstraction, and a significant engineering practice orientation. Traditional teaching methods have limitations in addressing students’ difficulties in understanding, designing, and practicing. This study explores the enabling paths of AI technology in the teaching of the “Composite Materials” course and constructs a new teaching model characterized by “virtual-real integration, human-machine collaboration, and data-driven approaches”. By introducing AI teaching assistants, generative AI-assisted design, virtual simulation experiment platforms, and intelligent evaluation systems, it effectively enhances students’ autonomous learning ability, engineering innovation ability, and problem-solving skills for complex engineering issues, providing new ideas for the cultivation of high-quality talents in the field of new materials.关键词：Artificial intelligence;“Composite Materials” course;Teaching mode;Integration of virtual and real6|12|0更新时间：2026-10-10
- 摘要：Transparent polyamide is a polyamide material with amorphous or microcrystalline structure, which is widely used, characterized by high transparency, excellent mechanical properties, and superior impact resistance. However, in practical applications, this type of material exhibits poor tolerance to alcoholic reagents. This study investigates the mechanism by which ethanol causes the surface whitening of PA PACM12 using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (1H-NMR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The results indicate that during immersion, ethanol penetrates the surface of PA PACM12 resin, preferentially dissolving and extracting low-molecular-weight amorphous components. The resulting powder detaches from the product surface, forming microporous structures that alter the refractive index of the board surface, leading to the whitening phenomenon. This research clarifies the interaction mechanism between long-chain transparent polyamide materials and ethanol from both structural and mechanistic perspectives, providing fundamental guidance for improving the alcohol resistance of industrial transparent polyamides.关键词：Transparent polyamide;Amorphous state;Aggregation structure;Ethanol;Solvent interaction0|0|0更新时间：2026-10-10
- 摘要：The polymerization of divinyl monomers has long been defined by the classical Flory-Stockmayer theory as an uncontrollable process that inevitably leads to gelation. This textbook conclusion remained unquestioned for decades. Centered around a fundamental question—“whether a controllable structural window could exist prior to gelation”—this article reviews a scientific journey spanning more than twenty years. By introducing controlled/living polymerization strategies, particularly deactivation-enhanced atom transfer radical polymerization (DE-ATRP), chain-growth kinetics were regulated in a manner that enabled, for the first time, the homopolymerization of divinyl monomers at high conversion without gelation, fundamentally challenging the conventional theoretical framework. The development, however, was far from linear progress. Early findings encountered persistent scepticism and criticism, while several experimental observations remained unexplained for years. Through continuous re-examination of the data and reinterpretation of the underlying mechanisms, it was eventually recognized that intramolecular cyclization, rather than intermolecular crosslinking, dominated the polymerization process under kinetically controlled conditions. This led to a new polymer topology—single-chain cyclized/knotted polymers—and revealed the limitations of the classical Flory–Stockmayer gelation theory in kinetically controlled polymerization systems. Furthermore, through precise regulation of kinetic chain length and reaction pathways, a universal strategy based on vinyl oligomer combination was developed, enabling the controllable transition from single-chain cyclized structures to veritable hyperbranched architectures. Beyond summarizing the evolution of these theories and methodologies, this article also seeks to present the human side of scientific discovery: the confusion, debates, unresolved questions, and long-term persistence required to pursue a fundamental scientific problem despite limited funding and the absence of broad recognition.关键词：Divinyl monomers;Flory-stockmayer theory;Controlled polymerization kinetics;Single-chain intramolecular cyclization;Hyperbranched polymer4|2|0更新时间：2026-09-21
- 摘要：To enhance the interlaminar toughness of carbon fiber/epoxy (CF/EP) composites, polyamide 66/polyamide 6 fiber veils (PA66/PA6V) with a “meltable/non-meltable” structure were fabricated using the wet-laid process. These toughening veils were subsequently interleaved between the layers of unidirectional carbon fiber fabrics, and CF/EP composites were manufactured via vacuum-assisted resin infusion (VARI). The Mode I and Mode Ⅱ interlaminar fracture toughness of the CF/EP composites before and after the incorporation of PA66/PA6V were investigated. The toughening mechanism of PA66/PA6V was explored through scanning electron microscopy (SEM) images of the fracture surfaces, and the effects of veil integration on other mechanical properties of the CF/EP composites were also studied. The results indicated that with the introduction of PA66/PA6V (with an areal density of 15 g/m2), the GⅠC and GⅡC of the CF/EP composites increased by 17.98% and 245.8%, respectively. The toughening mechanisms of the veils primarily include fiber bridging and pull-out of PA66 and PA6 fibers, crack deflection induced by the veils, and plastic deformation resulting from the partial melting of PA66 fibers, which collectively enhance the interlaminar toughness of the CF/EP composites. Moreover, the introduction of PA66/PA6V did not adversely affect the interlaminar shear strength or tensile properties of CF/EP composites. Interleaving PA66/PA6V between composite layers effectively improved the interlaminar toughness of CF/EP composites, providing an effective technical approach for the interlaminar toughening of composites.关键词：Carbon fiber composites;Interlaminar toughening;Polyamide 66;Polyamide 6;Fiber veil11|1|0更新时间：2026-09-03
- 摘要：Against the backdrop of rising anti-globalization sentiments and growing uncertainties in international exchanges, the internationalization of higher education has evolved from large-scale cross-border mobility to a new stage featuring high-quality and localized development. Based on the goals of China’s Double First-Class Initiative and outstanding talent cultivation, the Department of Polymer Science and Engineering at Zhejiang University has established a two-way integrated international training system. This system features “Bringing In” centered on the development of fully English-taught courses and “Going Out”, which is supported by overseas practice and joint training programs. The department offers a suite of English-taught courses, such as “Progress in Polymer Science and Engineering” delivered by professors from the University of Bayreuth, Germany, and “Cell-Biomaterial Interactions” taught by professors from the University of Porto, Portugal. Leveraging the “Zhiyuan Graduate Overseas Social Practice Program”, the department organizes students to participate in scientific research and cultural exchanges in Portugal. By leveraging national platforms, including the China–Portugal Belt and Road Joint Laboratory for Advanced Materials, the department has forged an integrated talent cultivation model that integrates international curricula, global faculty resources, overseas practical training, and collaborative scientific research. This innovative system has substantially strengthened students’ professional competence and cross-cultural communication capabilities, providing a replicable model for science and engineering departments to advance the internationalization of talent cultivation in a volatile global landscape.关键词：Talent cultivation;Polymer science and engineering;Internationalization at home;English-taught courses;Overseas social practice7|3|0更新时间：2026-08-26
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