A5050207470- Organometallic Complex Synthesis and Catalysis
- Carbon dioxide utilization in catalysis
- biodegradable polymer synthesis and properties
- Advanced Sensor and Energy Harvesting Materials
- Flame retardant materials and properties
- Polymer crystallization and properties
- Synthetic Organic Chemistry Methods
- Synthesis and characterization of novel inorganic/organometallic compounds
- MXene and MAX Phase Materials
- Polymer Nanocomposites and Properties
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supercapacitor Materials and Fabrication
- Dielectric materials and actuators
- Polymer composites and self-healing
- Catalytic Alkyne Reactions
- Electrospun Nanofibers in Biomedical Applications
- Conducting polymers and applications
- Advanced Materials and Mechanics
- Fire dynamics and safety research
- Acoustic Wave Resonator Technologies
- Organoboron and organosilicon chemistry
- Advanced Cellulose Research Studies
- Advanced battery technologies research
- Luminescence and Fluorescent Materials
Zhejiang University
2017-2025
Zhejiang A & F University
2021-2025
Zhejiang Medicine (China)
2025
Zhejiang Research Institute of Chemical Industry
2023-2024
Qingdao University of Science and Technology
2014-2015
Qingdao Center of Resource Chemistry and New Materials
2015
Changsha Mining and Metallurgy Research Institute (China)
1994
Abstract Advanced conductive hydrogels demonstrate substantial potential for wearable devices. Nevertheless, the transformative advance in soft electronics raises harsh requirements on hydrogel candidates, such as rapid and on‐site fabrication, mechanical flexibility, high sensitivity, wide use temperature. Here, this problem is overcome by incorporating a dual catalytic system based lignin‐modified MXene‐Fe 3+ into commercial hydrogels. This 1) can form composite time scale of min at...
Although recently developed hybrid zinc (Zn) batteries integrate the benefits of both alkaline Zn and Zn-air batteries, kinetics electrocatalytic oxygen reaction mass transfer electrolyte, which are limited by mismatched disordered multiphase reaction's interfacial channels, considerably inhibit performance batteries. In this work, novel, continuously oriented three-phase channels at cathode derived from natural structure pine wood to address these challenges. A chip is carbonized...
The past decade has witnessed an emerging and fast-growing field on mechanically soft systems, ranging from materials (e.g. hydrogels) to devices flexible electronics), functional systems robotics). It is envisioned that will continue thrive in the coming decades academia industrial communities. launch of Soft Science provide first dedicated platform for publishing research findings share knowledge among
Abstract Preparing bio‐based epoxy resins with high performance is crucial to sustainable development. However, seeking renewable and flame‐retardant mechanical properties are still challenging. Here, we reported a facile way transform lignin derivatives intrinsic satisfactory properties. Two guaiacol‐based novolac (i.e., GTEP/DDM GPEP/DDM) were prepared as alternatives for petroleum‐based DGEBA/DDM. The cured product showed T g of 209.5°C, tensile modulus 3.13 GPa, LOI 28.6% UL‐94 V‐1...
ABSTRACT Developing epoxy resin (EP) with satisfactory comprehensive properties has significant prospects in high‐tech industries, but achieving this goal remains a challenge. In work, macromolecular flame retardant (PSi) was synthesized using vanillin, phenylphosphonic dichloride (PPDC), 9,10‐dihydro‐9‐oxa‐10‐phospha‐phenanthrene 10‐oxide (DOPO), and 1,3‐bis(aminopropyl)tetramethyldisiloxane (DAPTMS). PSi subsequently utilized to fabricate high‐performance EP. The EP 2 wt% (i.e., EP/PSi )...
External donor (De) modification is an effective way to enhance the stereoselectivity of propylene polymerization with supported Ziegler–Natta catalysts. Aminosilane as a novel type external has been found have excellent ability enhancing isoselectivity polymerization. In this work, dipiperidyldimethoxysilane (Donor-Py) was compared cyclohexyl(methyl)dimethoxysilane (Donor-C) and dicyclopentyldimethoxysilane (Donor-D) for in presence or absence hydrogen. By analyzing effects donors on...
Concomitant double crystallization processes widely occur in semicrystalline polymers and their blends because of structural morphological heterogeneity. In this work, a generalized kinetics model was established for the isothermal presence concomitant processes, based on Avrami theory single process. The different situations including independent, competitive, composite types, are considered by introducing concept "domains". This applied to triblock terpolymer with defects, polymorphic...
Preparing biobased epoxy resins with intrinsic flame retardancy, excellent mechanical properties, and high heat resistance has the potential to be used in flame-retardant fields (e.g., aerospace industry, electrical, electronic areas). However, seeking renewable those goals is still challenging. In this work, we prepare a precursor (PGE) derived from phloretin via one-step epoxidizing reaction then solidified by 4,4′-diaminodiphenyl sulfone (DDS) obtain target resin (PGE/DDS). The molecular...
The union of experimental and computational methods can accelerate the development polymerization catalysts for industrial applications. Herein, we report complementary studies thermal stability α-diimine nickel complexes by using thermally stable Cat. 1 a typical Brookhart catalyst (B-Cat) as models. Experimentally, found that many more atoms could be activated at elevated temperature during ethylene process compared to those B-Cat. Computationally, first-principle calculations showed...
ABSTRACT Two TiCl 4 /Di/MgCl 2 type supported Ziegler–Natta catalysts were prepared by loading dibutylphthalate or dicyclopentyldimethoxysilane (DCPDMS) (internal donor, Di) and on activated δ‐MgCl in sequence, a blank catalyst was the same without adding Di. These have similar specific surface area pore size distribution, thus form suitable base for comparative studies. Propylene polymerization with conducted n ‐heptane slurry using triethylaluminum (TEA) as cocatalyst, effects of Di well...
Abstract Kinetics of propylene polymerization with two TiCl 4 /MgCl 2 model catalysts different Ti load (Cat‐1: 0.1 wt%; Cat‐2: 1.0 wt%) was investigated in this work. Time‐dependent variations active centers fraction ([C * ]/[Ti]) and center distribution the were compared. In Cat‐1, [C ]/[Ti] only 7.8 % initial stage, but increased for more than three times reaction period 600 s. Propylene Cat‐2 had much lower ]/[Ti]. Active distributions markedly different. Cat‐1 has evidently higher...
Muhammad Adnan Akram, Xiaoyu Liu, Baiyu Jiang, Biao Zhang, Amjad Ali, Zhisheng Fu & Zhiqiang Fan*MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department Polymer Science Engineering, Zhejiang University, Hangzhou, China
A crystalline/crystalline iPP/iPB alloy was synthesized to illustrate the sequential two-stage polymerization mechanism and active site distribution during this process.
The kinetic behaviors of ethylene and propylene polymerizations with the same MgCl₂-supported Ziegler⁻Natta (Z⁻N) catalyst containing an internal electron donor were compared. Changes polymerization activity active center concentration ([C*]) time in first 10 min determined. Activity was only 25% that propylene, rate (Rp) quickly decayed (tp) former system, contrast to stable Rp latter. system showed a very low [C*]/[Ti] ratio (<0.6%), much higher (1.5%⁻4.9%) polymerization. two systems...
Abstract As for cellulose‐based aerogels, a feature of inadequate mechanics and easy‐flammability seriously restricts their practical applications. To address this issue, herein lightweight, mechanical elastic flame‐retardant phosphorylated lignin‐based cellulose nanofiber (PLCNF‐B) aerogel with the aid boric acid was successfully obtained by freeze‐drying method. Due to uniform tough network structure benefitting strong hydrogen bond between fibers acid, resultant showed excellent...