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学者姓名:靳艳巧
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In order to overcome the performance barriers of polylactic acid (PLA), a multifunctional layered chitosan derivative, DAMC-Al, is synthesised and used as an intumescent flame retardant. The acid sources used in this work are 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and amino trimethylene phosphonic acid, which act synergistically to facilitate the conversion of chitosan to carbon. The combustion tests demonstrate that the PLA/ 5DAMC-Al exhibits excellent flame-retardancy with a limiting oxygen index of 30.3 % and a UL-94 flammability rating of V-0. The heat release rate and total heat release are significantly reduced compared to pure PLA, and the residual carbon expands rapidly. In addition, the composite has improved toughness while maintaining the stiffness of the PLA substrate, with a 31.0 % increase in elongation at break. DAMC-Al can also effectively block the transmission of 95 % of ultraviolet lights, protecting the PLA macromolecular chain from high-energy ultraviolet damage. Actually, the ultraviolet protection factor of PLA/5DAMC-Al is determined to be as high as 51.43. Furthermore, the soil degradation tests show that PLA/5DAMC-Al has the same excellent natural degradation properties as PLA.
Keyword :
Chitosan Chitosan Degradation Degradation Flame retardant Flame retardant PLA PLA UV Resistance UV Resistance
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GB/T 7714 | Li, Qian , Zheng, Jing , Huang, Zejie et al. A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid [J]. | POLYMER DEGRADATION AND STABILITY , 2025 , 234 . |
MLA | Li, Qian et al. "A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid" . | POLYMER DEGRADATION AND STABILITY 234 (2025) . |
APA | Li, Qian , Zheng, Jing , Huang, Zejie , Hu, Libo , Jin, Yanqiao , Xiong, Lei . A multifunctional layered chitosan derivative for overcoming the performance barriers of polylactic acid . | POLYMER DEGRADATION AND STABILITY , 2025 , 234 . |
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To improve the comprehensive properties of polybutylene furandicarboxylate (PBF), 2,5-furandicarboxylic acid (2,5-FDCA), and aliphatic chain diol 1,8-octanediol and 1,4-butanediol were used as monomers to synthesize a series of bio-based polybutylene glycol-octanediol 2,5-furandicarboxylate (PBOF). The results showed that the chemical composition of PBOF could be controlled through the molar ratio of monomers. Compared with PBF, as the proportion of octanediol segments gradually increased, PBOF could gradually transform from semi-crystalline thermoplastic to amorphous form, and the glass transition temperature (Tg) gradually decreased. The crystallization ability reduced but a part of the crystal area was still retained. The copolyesters still has a decomposition temperature above 370 degrees C, indicating excellent thermal stability. The introduction of the octanediol segment significantly improved the tensile mechanical properties and flexibility of the POBF copolyester. These meet the requirements for the preparation of bio-based engineering plastics. The water absorption rate of PBOF showed that it may have certain degradable potential. PBOF copolyesters have potential application prospects in bio-based medical plastics and biodegradable packaging polymer materials after copolymerization modification. A series of high-value bio-based copoyesters were prepared from a kind of sustainable raw material, 2,5-furandicarboxylic acid. image
Keyword :
bio-based polymers bio-based polymers biomass utilization biomass utilization copolyesters copolyesters furan dicarboxylic acid furan dicarboxylic acid polycondensation polycondensation
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GB/T 7714 | Xu, Jia , Zou, Haitao , Jin, Yanqiao et al. Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition [J]. | JOURNAL OF APPLIED POLYMER SCIENCE , 2024 , 141 (33) . |
MLA | Xu, Jia et al. "Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition" . | JOURNAL OF APPLIED POLYMER SCIENCE 141 . 33 (2024) . |
APA | Xu, Jia , Zou, Haitao , Jin, Yanqiao , Zheng, Qixi , Lei, Fanghui , Wu, Yuxin . Preparation and performance exploration of 2,5-furandicarboxylic acid-based copolyester bioplastics: Controlling thermal properties, tensile properties, and surface hydrophilicity through composition . | JOURNAL OF APPLIED POLYMER SCIENCE , 2024 , 141 (33) . |
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The design of a highly active Cu -Co catalyst for catalytic transfer hydrogenolysis of lignin without the use of external hydrogen remains highly challenging. In this work, Cu 2 O was initially encapsulated in ZIF-67, and subsequently Cu 2 O@ZIF-67 was utilized as a precursor and sacrificial template to prepare the unique double core-shell hollow nanocage CuO@Co 3 O 4 . Co and Cu, serving as Lewis acid sites and dehydrogenation sites for the hydrogen -donor solvent isopropanol, respectively, exhibited synergistic enhancement, further increasing the catalytic activity. Under the optimal conditions of 220 degrees C, 1 MPa N 2 , and 4 h, the catalyst achieved 100 % conversion of 2-phenoxy-1-phenylethanol and 100 % yield towards cyclohexanol and ethylbenzene. Furthermore, the catalyst remained stable and reusable after 5 cycles, providing a practicable guidance for the valueadded conversion of lignin.
Keyword :
C-O bonds cleavage C-O bonds cleavage CuCo-based catalyst CuCo-based catalyst Double core-shell hollow nanocage structure Double core-shell hollow nanocage structure Lignin Lignin
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GB/T 7714 | Chen, Feng , Lin, Xuebin , Chen, Wei et al. Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 491 . |
MLA | Chen, Feng et al. "Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen" . | CHEMICAL ENGINEERING JOURNAL 491 (2024) . |
APA | Chen, Feng , Lin, Xuebin , Chen, Wei , Wen, Na , Jin, Yanqiao . Double core-shell hollow nanocage CuO@Co 3 O 4 for the selective hydrogenolysis of C-O bonds of lignin without external hydrogen . | CHEMICAL ENGINEERING JOURNAL , 2024 , 491 . |
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为培养适应社会发展需要的应用型创新人才,文章针对高分子化学实验课程传统教学存在的问题,提出了一种虚拟仿真实验教学与传统实验教学相结合的实验教学模式.该教学模式的实施,有助于弥补传统实验教学的不足,激发学生的学习兴趣,锻炼学生的实践能力和创新思维,提高教学质量和效率,促进应用型创新人才的培养.
Keyword :
实验教学 实验教学 虚实结合 虚实结合 虚拟仿真 虚拟仿真 高分子化学实验 高分子化学实验
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GB/T 7714 | 张夏兰 , 吕秋丰 , 靳艳巧 et al. 虚实结合的高分子化学实验课程教学改革探索 [J]. | 化工高等教育 , 2024 , 41 (4) : 142-149 . |
MLA | 张夏兰 et al. "虚实结合的高分子化学实验课程教学改革探索" . | 化工高等教育 41 . 4 (2024) : 142-149 . |
APA | 张夏兰 , 吕秋丰 , 靳艳巧 , 林起浪 . 虚实结合的高分子化学实验课程教学改革探索 . | 化工高等教育 , 2024 , 41 (4) , 142-149 . |
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Conventional tumor therapeutic modalities, such as radiotherapy, chemotherapy, and surgery, involve low tumor inhibition efficiency, non-targeted drug delivery, and side effects. The development of novel and practical nano-drug delivery systems (DDSs) for targeted tumor therapy has become particularly important. Among various bioactive nanoparticles, chitosan is considered a suitable candidate for drug delivery due to its non- toxicity, good biocompatibility, and biodegradability. The amino and hydroxyl groups of chitosan endow it with the diverse function of chemical modification, thereby improving its physical and biological properties to meet the requirements of advanced biomedical applications. Therefore, it is necessary to review the property and applications of chitosan-based materials in biomedicine. In this review, the characteristics of chitosan related to its applications are first introduced, and then the preparation and modification of chitosan-based nanoparticles, including the function tailoring of chitosan-modified nanoparticles, are demonstrated and discussed. Finally, the opportunities and challenges of chitosan-based nanomaterials in this emerging field are proposed from the perspective of the rational and systematic design for the biomedicine field.
Keyword :
biocompatibility biocompatibility cancer treatment cancer treatment Chitosan Chitosan nano-drug delivery systems (DDSs) nano-drug delivery systems (DDSs) nanoparticles nanoparticles targeted delivery targeted delivery
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GB/T 7714 | Lai, Chunmei , Lin, Simin , Liu, Wei et al. Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy [J]. | CURRENT MEDICINAL CHEMISTRY , 2024 , 31 (21) : 3074-3092 . |
MLA | Lai, Chunmei et al. "Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy" . | CURRENT MEDICINAL CHEMISTRY 31 . 21 (2024) : 3074-3092 . |
APA | Lai, Chunmei , Lin, Simin , Liu, Wei , Jin, Yanqiao . Research Progress of Chitosan-based Multifunctional Nanoparticles in Cancer Targeted Therapy . | CURRENT MEDICINAL CHEMISTRY , 2024 , 31 (21) , 3074-3092 . |
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Lignin is continuously investigated by various techniques for valorization due to its high content of oxygencontaining functional groups. Catalytic systems employing hydrolysis-hydrogenolysis, leveraging the synergistic effect of redox metal sites and acid sites, exhibit efficient degradation of lignin. The predominance of either hydrolysis or hydrogenolysis reactions hinges upon the relative activity of acid and metal sites, as well as the intensity of the reductive atmosphere. In this study, the Pd-MoOx/TiO2 catalyst was found to primarily catalyze hydrolysis in the lignin depolymerization process, attributed to the abundance of moderate acidic sites on Pd and the redox-assisted catalysis of MoOx under inert conditions. After subjecting the reaction to 240 degrees C for 30 h, a yield of 48.22 wt% of total phenolic monomers, with 5.90 wt% consisting of diphenols, was achieved. Investigation into the conversion of 4-propylguaiacol (4-PG), a major depolymerized monomer of corncob lignin, revealed the production of ketone intermediates, a phenomenon closely linked to the unique properties of MoOx. Dehydrogenation of the propyl is a key step in initiating the reaction, and 4-PG could be almost completely transformed, accompanied by an over 97 % of 4-propylcatechol selectivity. This distinctive system lays a new theoretical groundwork for the eco-friendly valorization of lignin.
Keyword :
4-Propylguaiacol 4-Propylguaiacol Hydrogen-free Hydrogen-free Hydrogenolysis Hydrogenolysis Hydrolysis Hydrolysis Ketone Ketone Lignin Lignin
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GB/T 7714 | Tang, Daobin , Lin, Xuebin , Zhang, Qi et al. Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2 [J]. | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 267 . |
MLA | Tang, Daobin et al. "Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2" . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 267 (2024) . |
APA | Tang, Daobin , Lin, Xuebin , Zhang, Qi , Wang, Zhenni , Liu, Yuhang , Jin, Yanqiao et al. Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x /TiO 2 . | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES , 2024 , 267 . |
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Glasses-free three-dimensional (3D) displays are being regarded as the key to the future of display that will redefine the display industry. Inspired by the curved screen, liquid crystal micro-lens arrays (LC MLAs) on flexible PET substrate with a radius of curvature of 5 cm was achieved. For demonstration, an integral imaging-based 2D/3D convertible display system is proposed by using the flexible LC MLAs (FLC MLAs) to switch its operation mode between 2D and 3D modes. When the FLC MLAs with an applied voltage are in the system, the prototype renders a matched 3D image and works in 3D mode. When the FLC MLAs do not have an applied voltage, the FLC MLAs are equivalent to glass, and the display system works in 2D mode. In addition, we also demonstrated that the FLC MLAs have a wider viewing angle than the flat integral imaging 3D display system. The depth of field ranges from 6.78 to 210.12 mm under low operating voltages of 3.4 to 3.1 Vrms, respectively. With its low voltage, thin structure, and adjustable focal length form factors, the developed display system can be integrated with off-the-shelf purchased flat panels, making it a promising option for portable electronics.
Keyword :
2D 2D 3D convertible 3D convertible curved integral imaging curved integral imaging Flexible liquid crystal micro-lens array Flexible liquid crystal micro-lens array tunable focal length tunable focal length
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GB/T 7714 | Wang, Wen-Wen , Peng, Yu-Yan , Weng, Xu-Yang et al. Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display [J]. | LIQUID CRYSTALS , 2023 , 50 (11-12) : 1666-1678 . |
MLA | Wang, Wen-Wen et al. "Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display" . | LIQUID CRYSTALS 50 . 11-12 (2023) : 1666-1678 . |
APA | Wang, Wen-Wen , Peng, Yu-Yan , Weng, Xu-Yang , Jin, Yan-Qiao , Zhou, Xiong-Tu , Yan, Qun et al. Flexible liquid crystal micro-lens arrays for curved integral imaging 2D/3D convertible display . | LIQUID CRYSTALS , 2023 , 50 (11-12) , 1666-1678 . |
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本发明公开了一种次磷酸三聚氰胺改性木质素包覆次磷酸铝阻燃剂及其制备方法和应用。本发明以木质素、三聚氰胺、醛、次磷酸、次磷酸钠和可溶性铝盐为原料,采用胺甲基化反应、磷酰胺化反应和化学共沉淀法相结合,以三聚氰胺改性木质素聚合物为囊材,以原位生成的次磷酸铝为芯材,制得一种次磷酸三聚氰胺改性木质素包覆次磷酸铝阻燃剂。本发明制备的阻燃剂,原料来源广泛,合成工艺简单,热稳定性好,阻燃剂中的囊材次磷酸三聚氰胺改性木质素与高分子材料相容性好,可减少阻燃剂对PA66力学性能的影响,且囊材次磷酸三聚氰胺改性木质素与芯材次磷酸铝具有显著的阻燃协同效应,在PA66中使用时具有很高的阻燃效率,并能有效抑制PA66的熔滴。
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GB/T 7714 | 熊雷 , 唐伟钟 , 刘家宇 et al. 次磷酸三聚氰胺改性木质素包覆次磷酸铝阻燃剂及其制备方法和在PA66中的应用 : CN202111656132.6[P]. | 2021-12-31 00:00:00 . |
MLA | 熊雷 et al. "次磷酸三聚氰胺改性木质素包覆次磷酸铝阻燃剂及其制备方法和在PA66中的应用" : CN202111656132.6. | 2021-12-31 00:00:00 . |
APA | 熊雷 , 唐伟钟 , 刘家宇 , 靳艳巧 , 黄泽杰 . 次磷酸三聚氰胺改性木质素包覆次磷酸铝阻燃剂及其制备方法和在PA66中的应用 : CN202111656132.6. | 2021-12-31 00:00:00 . |
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本发明公开了一种DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用。本发明以壳聚糖、三聚氰胺、DOPO、ATMP和铝盐为原料,通过将缩醛化反应、羟甲基化反应、鳌合离子反应相结合,设计制备了一种DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂。本发明阻燃剂的制备工艺简单,原料来源绿色广泛,与聚合物相容性好,对复合材料机械性能影响小,对PBAT阻燃效率高,能够有效防止熔体熔滴和浓烟排放,有望促进PBAT应用于更高安全标准的领域。
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GB/T 7714 | 靳艳巧 , 黄泽杰 , 常万鹏 et al. DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843655.X[P]. | 2022-07-18 00:00:00 . |
MLA | 靳艳巧 et al. "DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用" : CN202210843655.X. | 2022-07-18 00:00:00 . |
APA | 靳艳巧 , 黄泽杰 , 常万鹏 , 胡礼波 , 熊雷 , 袁珮 . DOPO/ATMP改性壳聚糖负载铝基单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843655.X. | 2022-07-18 00:00:00 . |
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本发明公开了一种全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用。本发明利用壳聚糖、烟酰胺和植酸三种生物质为原料,通过层层自组装制得一种全生物质自组装单组份膨胀型阻燃剂,其制备工艺简单,原料来源广泛,绿色环保可再生,所得阻燃剂与聚合物相容性好,对复合材料机械性能影响较小,应用在PLA上具有较高的阻燃效率,能有效抑制其熔体熔滴和浓烟排放。
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GB/T 7714 | 熊雷 , 黄泽杰 , 向安娜 et al. 全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843654.5[P]. | 2022-07-18 00:00:00 . |
MLA | 熊雷 et al. "全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用" : CN202210843654.5. | 2022-07-18 00:00:00 . |
APA | 熊雷 , 黄泽杰 , 向安娜 , 靳艳巧 , 袁珮 , 吴红良 . 全生物质自组装单组份膨胀型阻燃剂及其制备方法和应用 : CN202210843654.5. | 2022-07-18 00:00:00 . |
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