GIANT最新文献

{"title":"Cation-π driven innovative gelatin-based hydrogels with ultrahigh adhesion and self-healing capabilities","authors":"Ruxin Zhang ,&nbsp;Zhiwei Chen ,&nbsp;Shuo Wang ,&nbsp;Bing Li ,&nbsp;Xiangyu Chen ,&nbsp;Wenhui Lu ,&nbsp;Deyi Zhu ,&nbsp;Fengchun Gao","doi":"10.1016/j.giant.2025.100361","DOIUrl":"10.1016/j.giant.2025.100361","url":null,"abstract":"<div><div>Tissue adhesives are critical for wound healing, facilitating tissue bonding and attachment to non-biological surfaces. Bio-based adhesives, such as gelatin, are attractive due to their inherent biocompatibility, biodegradability, and low immunogenicity. However, traditional gelatin-based adhesives suffer from limitations including low crosslink density, high hydrophilicity, and suboptimal surface adhesion, resulting in weak mechanical strength and inadequate adhesion. Drawing inspiration from the cation-π interaction observed in mussel adhesive proteins, a novel hydrogel with high mechanical strength and adhesion was synthesized developed by grafting N-Benzyloxycarbonyl-L-Glutaminylglycine (ZQG) onto the gelatin peptide chain and 3-(carboxypropyl)trimethyl-ammonium chloride (CPTA) onto the polylysine chain. The optimized hydrogel, designated Gel-Z-C(0.5), demonstrated exceptional performance, exhibiting impressive dry and adhesion on porcine skin strengths of 298.78 ± 36.24 kPa and 150.69 ± 9.34 kPa, respectively. Remarkably, Gel-Z-C(0.5) also displayed rapid self-healing within 70 min and excellent compressive strength (100 kPa at 85 % strain). These superior properties are attributed to the synergistic interplay of cation-π, π-π, and electrostatic interactions, fostering a robust multi-crosslinked network. Furthermore, this innovative hydrogel exhibits controlled swelling, appropriate biodegradability, and excellent biocompatibility. These findings strongly suggest the material’s potential as an effective biomedical tissue adhesive, driven by its robust adhesion, outstanding mechanical strength, and self-healing.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"23 ","pages":"Article 100361"},"PeriodicalIF":5.4,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144168546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Six-coordinated half-metallocene catalyst for ethylene polymerization and its mechanism study","authors":"Qian Li,&nbsp;Zifang Guo,&nbsp;Shuzhang Qu,&nbsp;Xinwei Li,&nbsp;Jian Chen,&nbsp;Yiming Wei,&nbsp;Cui Zheng,&nbsp;Zhihui Song,&nbsp;Yue Lan,&nbsp;Zhao Wen,&nbsp;Chaofan Yu","doi":"10.1016/j.giant.2025.100360","DOIUrl":"10.1016/j.giant.2025.100360","url":null,"abstract":"<div><div>The demand for catalysts capable of enabling olefin polymerization at elevated temperatures to meet industrial requirements continues to grow. Among emerging candidates, novel six-coordinated half-metallocene catalysts, which combine the advantages of both metallocenes and non-metallocenes, show promise due to their polymerization performance and thermal stability. Despite this potential, the polymerization mechanism of six-coordinated half-metallocenes with one chloride ligand has not been clarified yet and theoretical calculation of new catalysts in olefin polymerization is an indispensable means for catalyst design and mechanism research. Herein, we present the synthesis and application of a six-coordinated half-zirconocene catalyst that exhibits outstanding polymerization activity under high-temperature conditions. Besides, we elucidate the polymerization process through a combination of theoretical studies and experimental validations. Furthermore, the chain transfer reaction during the polymerization was analyzed by the characterization of polymer.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"23 ","pages":"Article 100360"},"PeriodicalIF":5.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amphiphlic polypropylene fibers with highly hydrophilic multi-grooved micro-structures through bicomponent melt spinning","authors":"Ruilong Liu ,&nbsp;Renhai Zhao ,&nbsp;Shunzhong Cai ,&nbsp;Fuyun Sun ,&nbsp;Kun Zhang ,&nbsp;Xin Ning ,&nbsp;George Hao","doi":"10.1016/j.giant.2025.100359","DOIUrl":"10.1016/j.giant.2025.100359","url":null,"abstract":"<div><div>Tunable surface amphiphilic polypropylene (PP) fibers and textiles with multi-grooved hydrophilic micro-structures have been prepared through a commercially scalable segmented pie bicomponent fiber melt spinning and post-treatment process. It was demonstrated that the molecular implantation of a modified polyvinyl alcohol (PVA) macromolecular chains onto the PP interface/interphase during the bicomponent melt-spinning process was responsible for the hydrophilicity inside the micro-channels (micro-groves) of the PP fibers. These hydrophilic channels brought about super capillary wicking effect through the PP fibers and fabrics that is much amplified than previous technologies to functional treatment of the fibers and fabrics via environmentally friendly aqueous processes. In aqueous dyeing treatment, for example, these multi-grooved novel amphiphilic fibers demonstrated a practical solution to the well-known dilemma that PP fiber is essentially impossible to dye due to its inherently low surface energy. Additionally, there is a great promise to expanded the amphiphilic PP to higher-value functionalities and wider-field applications.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"23 ","pages":"Article 100359"},"PeriodicalIF":5.4,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-assembled arginine-based eutectogel microneedles as novel transdermal delivery system for pigmentation treatment","authors":"Hui Ma ,&nbsp;Yier Li ,&nbsp;Qiufeng Yao ,&nbsp;Ruixiu Qin ,&nbsp;Yanan Wang ,&nbsp;Wenhui Wu ,&nbsp;Hui Luo ,&nbsp;Qi Zhao ,&nbsp;Hua Ye ,&nbsp;Kefeng Wu","doi":"10.1016/j.giant.2025.100357","DOIUrl":"10.1016/j.giant.2025.100357","url":null,"abstract":"<div><div>An efficient and patient-friendly strategy for administering skin pigmentation is achieved through microneedles (MNs) -mediated drug delivery into the dermal interstitium across the stratum corneum. In this work, we design a eutectogel to fabricate dissolving MNs delivery system, which were self-assembled from small molecules of arginine and sorbitol driven by hydrogen bonding interaction. The hydrogen bond-network structure conferred the arginine-sorbitol eutectogel (AsE) MNs with sufficient mechanical properties, which enable it easily pierce the thickened stratum corneum of the skin and directly deliver drugs into the deep skin lesions. Moreover, the unique eutectogel exhibits super hydrophilic properties and makes the AsE/MNs display completely dissolution and diffuse drugs rapidly. The AsE/MNs exhibit high biocompatibility and degradability in vivo and do not cause toxicity or irritation when being applied. AsE/MNs possesses remarkable drug loading capacity and stability, moreover, the permeated amounts of rutin on mice skin in the AsE/MNs was more than 15 times enhancement over that of the rutin solution group in vitro. Furthermore, the results of pharmacodynamic study in vivo demonstrated that AsE/MNs loading rutin could effectively prevent the skin pigmentation and tissue damage induced by UV irradiation. Overall, this work validated that AsE/MNs are a valuable platform for improving the transdermal bioavailability of drugs.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"23 ","pages":"Article 100357"},"PeriodicalIF":5.4,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Giant electro-viscous effects in polar fluids with paraelectric–modulated antiferroelectric–ferroelectric phase sequence","authors":"Hiroya Nishikawa ,&nbsp;Péter Salamon ,&nbsp;Marcell Tibor Máthé ,&nbsp;Antal Jákli ,&nbsp;Fumito Araoka","doi":"10.1016/j.giant.2025.100356","DOIUrl":"10.1016/j.giant.2025.100356","url":null,"abstract":"<div><div>The recently discovered ferroelectric nematic liquid-crystal material DIO exhibits an antiferroelectric (AF) phase, characterized by a sinusoidally modulated structure between the paraelectric (P) and ferroelectric (F) nematic phases. Although these sinusoidal modulated structures associated with the P–AF–F phase sequence is commonly observed in solid ferroelectrics, their presence in soft matter systems is scarce. This study is aimed at examining the macroscopic properties of DIO, identifying unique rheological properties, such as switching between shear thinning and shear thickening behaviors at certain shear rate in the ferroelectric nematic phase. Additionally, a significant electroviscous effect is observed, with the viscosity increasing by 70 times under an ultra-low electric field of 0.15 V µm⁻¹ at the AF–F transition.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"22 ","pages":"Article 100356"},"PeriodicalIF":5.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Miktoarm star polymers as templates for mesoporous phenolic materials: Enhancing microphase separation and expanding phase diagrams","authors":"Ting‐Chih Chou,&nbsp;Shiao‐Wei Kuo","doi":"10.1016/j.giant.2025.100355","DOIUrl":"10.1016/j.giant.2025.100355","url":null,"abstract":"<div><div>In the field of soft matter, designing different amphiphilic chemical structures could lead to the formation of ordered microphase-separated arrangements. Unlike linear block copolymers, miktoarm star polymers have been extensively utilized and inherently enhance the conformational asymmetry value (<em>ε</em>) in the microphase separation system through their branched chemical structure, allowing control over the interfacial curvature between microphase-separated domains and facilitating the formation of unique self-assembled structures, offering the potential to expand phase diagrams. In this study, we synthesized a common linear PEO-<em>b</em>-PCL diblock copolymer via ring-opening polymerization (ROP) and also prepared an AB₃-type block copolymer, PEO-<em>b</em>-PCL₃, by linking PEO to a branched PCL₃ block through a combination of ROP and click reactions with the similar volume fraction of PEO segment. Resol-type phenolic resin was synthesized by step-growth polymerization and used as the matrix, which was mixed with different weight fractions of linear PEO-<em>b</em>-PCL and miktoarm-type PEO-<em>b</em>-PCL₃ block copolymers as templates. FT-IR analysis of these blends at room temperature revealed that, under the similar volume fraction, the miktoarm-type star polymer forms the higher fraction of intermolecular hydrogen bonds with the phenolic resin in the PCL₃ block segment, and no crystallization was observed. Variable-temperature SAXS analysis demonstrated that upon thermal cross-linking, the blends exhibited improved stability and enhanced ordered microphase-separated structures. By heating to pyrolysis temperatures to remove the template, the resulting structures were characterized by using TEM and SAXS analyses. The systems constructed by two different templates creating mesoporous materials with different ordered structures such as lamellar, hexagonal columnar, spherical, BCC packing, and even the rare short-range order Frank-Kasper phase. Through phase diagram construction, we found that even with the similar weight fraction, the ordered mesoporous structures formed using the two different type of templates displayed significant differences. Additionally, the results indicated that when the branched segment of the miktoarm-type polymer is located at the core of the micelle, the interfacial curvature decreases. Overall, this study reveals the existence of the unique short-range order Frank-Kasper phase in systems with low χ values using wet-brush blending and validates the feasibility of employing miktoarm-type polymers as templates through analysis of molecular interaction and morphological characterization. This expands the phase diagram in the direction of tuning conformational asymmetry, providing a novel approach for designing innovative or specialized ordered mesoporous materials.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"22 ","pages":"Article 100355"},"PeriodicalIF":5.4,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure evolution of PVDF/PBSU interpenetrating crystal frameworks during deformation investigated by in-situ synchrotron radiation SAXS/WAXS","authors":"Jiayao Wang ,&nbsp;Xiaran Miao ,&nbsp;Jianrong Zeng ,&nbsp;Xuke Li ,&nbsp;Yufei Dong ,&nbsp;Yongjin Li ,&nbsp;Fenggang Bian ,&nbsp;Jichun You","doi":"10.1016/j.giant.2025.100354","DOIUrl":"10.1016/j.giant.2025.100354","url":null,"abstract":"<div><div>The structure evolution of interpenetrating crystal frameworks during deformation has been investigated with the help of in-situ small angle X-ray scattering (SAXS) and wide-angle X-ray scattering (WAXS) by taking poly(vinylidene fluoride)/poly(1,4-butylene succinate) (PVDF/PBSU) blend as an example. During deformation, crystal slip, fragmentation and recrystallization of PVDF occur, leading to the formation of its fibrillar structures and the newly-formed PVDF crystalline lamellae with their normal parallel to stretching direction. In this process, the enriched chains or crystals of PBSU are reorganized accompanying the structure evolution of PVDF and finally enrich among newly-formed PVDF fibrils. The phase segregation and consequent connection of crystalline lamellae, dominated by the composition in blends, play important roles in the structure evolution of PVDF/PBSU interpenetrating crystal frameworks. On the one hand, higher PBSU content in blend contributes to the poor connection and weakens stress transfer among neighboring PVDF crystalline lamellae, corresponding to the larger critical strains for lamellar-to-fibrillar transition and α-to-β transformation of PVDF. On the other hand, higher PBSU content also leads to its lamellar stack in PVDF crystal framework. The fragmentation and recrystallization of these well-connected PBSU crystals yield newly-formed PBSU crystalline lamellae with their normal parallel to the stretching direction. On the contrary, the well connection of PVDF crystalline lamellae in the case of lower PBSU content corresponds to the fast lamellar-to-fibrillar transition and α-to-β transformation of PVDF crystal framework. The PBSU crystalline lamellae in this case exhibits poor connection and results in its crystalline lamellae with <em>c</em>-axis perpendicular to the stretching direction. Our results are significant for the fundamental understanding of the deformation mechanism.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"22 ","pages":"Article 100354"},"PeriodicalIF":5.4,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D printable colloidal dispersions demonstrating sol-to-gel transition at low silica concentrations mediated by molecular weight distribution of polypropylene glycol oligomer","authors":"Sai Wu ,&nbsp;Qingxu Zhang ,&nbsp;Shihao Xiao ,&nbsp;Li'an Zhang ,&nbsp;Chaoyi Fan ,&nbsp;Jinpeng Wang ,&nbsp;Jian Wang ,&nbsp;Yijun Shen ,&nbsp;Yihu Song ,&nbsp;Qiang Zheng","doi":"10.1016/j.giant.2025.100353","DOIUrl":"10.1016/j.giant.2025.100353","url":null,"abstract":"<div><div>Thixotropic colloidal gels composed by hydrophilic silica and polypropylene glycol (PPG) oligomer fluidize upon shear and solidify upon cease of flow, facilitating their use in 3D printing. In this study, we present a novel approach to high-fidelity 3D printing that leverages a dual-stream mixing technique within the printer nozzle for the first time. This innovative method enables the precise fabrication of colloidal objects even at low volume fractions (<em>φ</em>) of filler. The printed gels, containing a pre-stored crosslinker, can be further processed into polyurethane nanocomposites, broadening their potential applications. Rheological studies demonstrate that the sol-gel transition in these systems can be effectively controlled by adjusting the molecular weight distribution of the polydisperse PPG oligomers. This investigation has led to the creation of a comprehensive polydispersity-molecular weight-<em>φ</em> phase diagram that characterizes the behavior of the gels under different conditions. Moreover, the mechanistic studies reveal that gelation of polydisperse oligomers occurs at significantly lower <em>φ</em> compared to monodisperse systems, which is attributed to the formation of thicker glassy layers surrounding the silica nanoparticles. Our findings provide valuable insights into the design and optimization of thixotropic gels, making them promising candidates for various applications requiring precise rheological control in materials science.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"22 ","pages":"Article 100353"},"PeriodicalIF":5.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143511736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Helically deployed Au nanoparticles using block copolymer templates as chiral plasmonic monoliths","authors":"Hsiu-Wen Tsai ,&nbsp;Sheng-Wei Shao ,&nbsp;Po-Ting Chiu ,&nbsp;Cheng-Yen Chang ,&nbsp;Yu-Chuan Sung ,&nbsp;Guan-Hong Li ,&nbsp;Yi-Ching Chen ,&nbsp;Akemi Kumagai ,&nbsp;Hiroshi Jinnai ,&nbsp;Yu-Chueh Hung ,&nbsp;Jing-Cherng Tsai ,&nbsp;Rong-Ming Ho","doi":"10.1016/j.giant.2024.100350","DOIUrl":"10.1016/j.giant.2024.100350","url":null,"abstract":"<div><div>This work aims to fabricate polymeric thin films with helically deployed gold (Au) nanoparticles by using self-assembled chiral block copolymers (BCPs*) with controlled helicity as templates, giving polymeric monolith with unique optical properties as chiral plasmonic thin film. Enantiomeric polylactide-based BCPs*, polystyrene-block-poly(<em>L</em>-lactide) (PS-<em>b</em>-PLLA) and poly-styrene-block-poly(<em>D</em>-lactide) (PS-<em>b</em>-PDLA) with disulfide junction are designed and synthesized, denoted as PS-ss-PLLA and PS-ss-PDLA, respectively. The helically deployed chemical junctions of the PS-ss-PLLA and PS-ss-PDLA thin films from the self-assembly of helix-forming BCPs* can give thiol end groups preferentially arranged in a one-handed helical fashion at the inner wall of nanoporous PS after hydrolysis of polylactide followed by reducing the disulfide into thiol. Au nanoparticles (Au NPs) with a size of 2-5 nm, resulting from reduction, can associate with the thiol end groups in the nanoporous PS, forming a helical disposition of Au NPs with specific handedness. As a result, circular dichroism (CD) signals of localized surface plasmonic resonance (LSPR) originating from the helical Au NP arrays with preferred chirality can be acquired from the polymeric monolith fabricated, giving appealing applications as chiroptical devices.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"21 ","pages":"Article 100350"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intrinsic low-dielectric Cardo polyimide with high heat resistance, high transparency, and low birefringence","authors":"Hong Li ,&nbsp;Weiyi Jin ,&nbsp;Weiyu Zhang ,&nbsp;Jie Li ,&nbsp;Jiaqi Ji ,&nbsp;Yi Tang ,&nbsp;Tianqi Yang ,&nbsp;Shujiang Zhang ,&nbsp;Haixia Yang ,&nbsp;Chenliang Gong","doi":"10.1016/j.giant.2024.100349","DOIUrl":"10.1016/j.giant.2024.100349","url":null,"abstract":"<div><div>Low-dielectric, transparent, and high-heat-resistant polyimide (PI) films are vital for flexible electronics and high-frequency communication devices. However, balancing these properties within intrinsic polyimides remains a significant challenge. In this work, a nonplanar diamine monomer, 2,7-bis(3,5-bis(trifluoromethyl)phenyl)-9,9-bis(4-nitrophenyl)-9H-fluorene (BTFDA), containing a Cardo structure and four trifluoromethyl groups, was synthesized and copolymerized with commercial monomers to produce a series of polyimides (CPI-X). These CPI-X exhibit exceptional heat resistance, with glass transition temperatures (<em>T</em>_g) exceeding 350 °C, decomposition temperatures (<em>T</em>_{d5 %}) above 530 °C, and low thermal expansion coefficients (CTE &lt; 20.8 ppm/K). Additionally, they have excellent optical properties with over 92 % transparency at 450 nm and low birefringence (Δ<em>n</em> = 0.00042). They also demonstrate good hydrophobicity with low water absorption (<em>M</em>_a% = 0.04 %) and high-water contact angles (<em>C</em>_a = 97.6°). Most importantly, the CPI-X films show excellent dielectric properties (<em>D_k</em> = 2.25, <em>D_f</em> = 0.00365 at 1 MHz, <em>D_k</em> = 2.13, <em>D_f</em> = 0.0065 at 10 GHz). Such intrinsic PI films with low <em>D</em>_k values may be ideal candidates for next-generation interlayer media.</div></div>","PeriodicalId":34151,"journal":{"name":"GIANT","volume":"21 ","pages":"Article 100349"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143098492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}