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学者姓名：卢振
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Abstract ：
Ultrahigh-resolution polymer materials with good thermal stability and high interface contrast have a wide range of application prospects in photolithography and nanomanufacturing processes. Here, we report a series of comb-like homopolymers based on polystyrene sulfonate imidazolium salts (PSSM-(i)imi), achieving efficient self-assembly under solvent-free conditions and obtaining sub-3 nm hexagonally packed cylinders and sub-4 nm lamellar nanopatterns with high interface contrast. The sulfonic acid groups in the main chain of the homopolymers are connected to imidazole groups containing hydrophobic alkyl side chains through acid-base mixed electrostatic interactions. The electrostatic interactions enhance the incompatibility between the two functional groups, while the alkyl side chain can precisely control the domain spacing and nanostructure of the pattern, regardless of their molecular weight. Through the effect of temperature fields, the thermal stability and spatial orientation of the homopolymer nanostructures were further studied, promoting the practical application of nanopatterned materials.
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| GB/T 7714 | Weng, Sen , Lu, Zhen , Cai, Jingyu et al. Ultrahigh-resolution, high interface contrast ionic homopolymers induced by acid-base mixed electrostatic interactions and nanopattern evolution [J]. | POLYMER CHEMISTRY , 2025 , 16 (21) : 2506-2513 . |
| MLA | Weng, Sen et al. "Ultrahigh-resolution, high interface contrast ionic homopolymers induced by acid-base mixed electrostatic interactions and nanopattern evolution" . | POLYMER CHEMISTRY 16 . 21 (2025) : 2506-2513 . |
| APA | Weng, Sen , Lu, Zhen , Cai, Jingyu , Xiao, Longqiang , Wang, Kairui , Zhao, Rui et al. Ultrahigh-resolution, high interface contrast ionic homopolymers induced by acid-base mixed electrostatic interactions and nanopattern evolution . | POLYMER CHEMISTRY , 2025 , 16 (21) , 2506-2513 . |
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Abstract ：
Covalent organic frameworks (COFs) are crystalline, porous semiconductors that have attracted significant interest in photocatalysis. The double chain edge structure of one-dimensional (1D) COFs enhances stability and minimizes energy loss, while varying linkage orientations create diverse optical band gaps and charge transfer properties. However, dimensional and isomeric COFs are rarely explored in photoinduced electron transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization, leaving their structure-activity relationships unclear. Herein, we synthesized 1D TA-COF, 1D TF-COF, 2D TA-COF, and 2D TF-COF to evaluate their behavior in oxygen-tolerant PET-RAFT polymerization. Notably, 1D TA-COF demonstrated optimal photocatalytic performance (79.4%, 16 h) owing to efficient charge separation, while isomeric 1D TF-COF exhibited lower productivity (41.5%) due to hindered electron transfer. Additionally, 2D TF-COF outperformed 2D TA-COF (51.0% vs. 36.7%, 16 h), highlighting the considerable impacts of dimension and isomerism on performance, with dimension playing a more dominant role due to the electron delocalization characteristics determined by topological structure.
Keyword ：
Covalent organic frameworks Covalent organic frameworks Dimension Dimension Isomeric Isomeric Oxygen-resistance Oxygen-resistance PET-RAFT polymerization PET-RAFT polymerization
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| GB/T 7714 | Tian, Kai , Zheng, Yiru , Lu, Zhen et al. Dimensional and Isomeric Effects of Pyrene-Based Covalent Organic Frameworks on PET-RAFT Polymerization [J]. | EUROPEAN POLYMER JOURNAL , 2025 , 232 . |
| MLA | Tian, Kai et al. "Dimensional and Isomeric Effects of Pyrene-Based Covalent Organic Frameworks on PET-RAFT Polymerization" . | EUROPEAN POLYMER JOURNAL 232 (2025) . |
| APA | Tian, Kai , Zheng, Yiru , Lu, Zhen , Zhao, Rui , Ge, Xin , Hou, Linxi . Dimensional and Isomeric Effects of Pyrene-Based Covalent Organic Frameworks on PET-RAFT Polymerization . | EUROPEAN POLYMER JOURNAL , 2025 , 232 . |
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The development of modern electronic devices necessitates the creation of materials that exhibit both excellent thermal conductivity and high electromagnetic wave absorption performance. This study focuses on the synthesis of a dual-functional composite material, Co-C@PDA@BN, by incorporating boron nitride (BN) onto a metal-organic framework (MOF)-derived Co-C core through the strong adhesion properties of polydopamine (PDA). The heterogeneous structural interface enhances interfacial polarization, thereby optimizing wave absorption. The thermal conductivity can be improved by adjusting the ratio of Co-C to BN. A composite with a Co-C to BN ratio of 1 : 5 shows a minimum reflection loss of -55.3 dB at 5 wt% and a thermal conductivity of 0.396 W m-1 K-1, while a ratio of 1 : 20 achieves a thermal conductivity value of 0.464 W m-1 K-1 with a minimum reflection loss of -44.9 dB, demonstrating the facile tunability of these two properties. This work provides a promising pathway via heterostructure design to balance thermal conductivity and wave absorption characteristics, which may offer guidance for advancing electronic device technology.
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| GB/T 7714 | Chen, Feng , Zhao, Hao , Xiao, Longqiang et al. Hierarchical Co-C@PDA@BN/PAM composites: synergistic enhancement of microwave absorption and thermal conductivity through heterostructure design [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2025 , 13 (24) : 12407-12419 . |
| MLA | Chen, Feng et al. "Hierarchical Co-C@PDA@BN/PAM composites: synergistic enhancement of microwave absorption and thermal conductivity through heterostructure design" . | JOURNAL OF MATERIALS CHEMISTRY C 13 . 24 (2025) : 12407-12419 . |
| APA | Chen, Feng , Zhao, Hao , Xiao, Longqiang , Yin, Xiangyu , Zhao, Yulai , Lu, Zhen et al. Hierarchical Co-C@PDA@BN/PAM composites: synergistic enhancement of microwave absorption and thermal conductivity through heterostructure design . | JOURNAL OF MATERIALS CHEMISTRY C , 2025 , 13 (24) , 12407-12419 . |
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To address the challenge of controllable and precise regulation of the phase behavior of block copolymers, this study proposes a novel strategy to regulate the self-organization behavior of PS-P2VP block copolymers through supramolecular self-assembly. PS-P2VP was synthesized via the RAFT method, and three POSS molecules with different non-covalent interactions were synthesized and used to form complexes with the PS-P2VP copolymers. Characterization techniques such as NMR, GPC, FT-IR, TGA, DSC, SAXS, and SEM, along with theoretical methods, were employed to analyze the impact of POSS on the phase behavior of PS-P2VP. The results demonstrate that POSS is particularly effective in modulating the self-assembled phase behavior in the lamellar phase of block copolymers, with BPOSS-Cl showing the most significant modulation, enabling the complexes to achieve third-order peaks in SAXS measurements. This conclusion is further supported by theoretical calculations. The study not only reveals the mechanism by which POSS regulates the self-assembly behavior of PS-P2VP but also provides a promising direction for advancing autonomous phase selection in block copolymers.
Keyword ：
Lamellar phase Lamellar phase POSS small molecules POSS small molecules PS-P2VP polymerization PS-P2VP polymerization Supramolecular assembly Supramolecular assembly
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| GB/T 7714 | Qiu, Caihong , Liao, Xiafeng , Zheng, Yiru et al. Synthesis of PS-P2VP modified by the POSS group and its self-assembly behavior [J]. | JOURNAL OF POLYMER RESEARCH , 2025 , 32 (4) . |
| MLA | Qiu, Caihong et al. "Synthesis of PS-P2VP modified by the POSS group and its self-assembly behavior" . | JOURNAL OF POLYMER RESEARCH 32 . 4 (2025) . |
| APA | Qiu, Caihong , Liao, Xiafeng , Zheng, Yiru , Zhang, Haowen , Lu, Zhen , Hou, Linxi . Synthesis of PS-P2VP modified by the POSS group and its self-assembly behavior . | JOURNAL OF POLYMER RESEARCH , 2025 , 32 (4) . |
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