Polymers
·
2019
·Vol. 11
·期 5
·803
·
IF 3.164
Feng Bao,Fengfeng Zhang,Chenghao Wang,Yuanyuan Song,Nan Li,Jinyan Wang,Xigao Jian
The application of poly(phthalazinone ether ketone)s (PPEKs) resin containing phthalazinone moiety is limited, due to its poor thermoforming processability. To investigate the effects of the phthalazinone’s side-group on the thermal stability and processability of the resin, a series of PPEKs resins with different side-group (–H/–CH3/–Ph) were prepared by nucleophilic aromatic substitution polymerization. The properties of the obtained resins were investigated by differential scanning calorimetry analysis (DSC), thermogravimetric analysis (TGA), dynamic thermomechanical analysis (DMA), and rheogoniometer. The results show that the introduction of methyl or phenyl into the PPEKs resin, significantly reduced the melting viscosity of the resin, but resulted in a slight decrease in the thermal stability of it. This might be due to the presence of methyl or phenyl, which enhanced the free volume of the molecule and reduced the entanglement between the chains; the results of the computer simulation confirmed it. Moreover, the resin films displayed excellent tensile strength with the introduction of methyl or phenyl. In a word, a novel poly(phthalazinone ether ketone)s resin with thermal resistance, easy processing and excellent mechanical properties could be obtained by introducing appropriate bulk-rigid side-groups into the phthalazinone moiety.Keywords:phthalazinone;side-group;thermal properties;processability
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Polymers
·
2018
·Vol. 10
·期 7
·708
·
IF 2.935
Liwei Wang,Jinyan Wang,Yu Qi,Fengfeng Zhang,Zhihuan Weng,Xigao Jian
Most polymer-based adhesives exhibit some degree of degradation at temperatures above 200 °C, and so there is a need for the development of adhesives that can be used at high temperatures. A series of poly(phthalazinone ether nitrile sulfone ketone)s terminated with epoxy (E-PPENSK) and amine (A-PPENSK) groups have been prepared, which have been used as precursors can be applied for high-temperature resistant epoxy adhesives. The structured of these E-PPENSK (epoxy resin) and A-PPENSK (curing agent) components have been characterized by1H nuclear magnetic resonance (NMR) and Fourier transform–infrared spectroscopy (FT–IR) studies, with the effects of molecular weights and molar ratios on the gel content of their polymers being determined. Cured epoxy resins derived from E-PPENSK and A-PPENSK showed good thermal stability, with an optimal resin retaining 95% of its weight at 484 °C, which gave a char yield of 62%. This adhesive was found to exhibit good mechanical strength, with a single-lap adhesive joint (A-3000/E-6000) exhibiting a shear strength of 48.7 MPa. Heating this adhesive at 450 °C for 1 h afforded a polymer that still exhibited good shear strength of 17.8 MPa, indicating that these adhesives are potentially good candidates for high-temperature applications.Keywords:poly(aryl ether);phthalazinone;epoxy adhesive;high-temperature resistant
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
HIGH PERFORMANCE POLYMERS
·
2025
·
IF 1.6
Zeyuan Liu,Qian Liu,Peiqi Xu,Zhaoqi Wang,Danhui Wang,Xigao Jian,Shouhai Zhang
Novel polyarylates containing phthalazinone moieties (PAR-PH) were synthesized and characterized by co-solvent interfacial polymerization based on 4-(4′-hydroxyphenyl)-2,3-phthalazin-1-one (DHPZ) and isophthaloyl chloride (IPC). Effects of inorganic bases, monomer concentration, phase transfer catalysts and co-solvents on the interfacial polymerization reaction were investigated. When the organic phase solvent was cyclohexane with 3% butanone and 18-crown-6 was the phase transfer catalyst, PAR-PH achieved a maximum intrinsic viscosity (ηint) up to 0.52 dL/g. For some organic phase solvents of alkanes and chlorinated hydrocarbons, the addition of co-solvents increased the ηint of the polymer. PAR-PH exhibit excellent thermal resistance due to the introduction of rigid twisted phthalazinone moieties into the polymer main chains, with glass transition temperature (Tg) of 275°C. The 5% thermal weight loss temperature of PAR-PH was 463°C in N2 and residual mass ratios at 800°C of 52.0%, demonstrating excellent thermal stability.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yi Zhao,Lina Liu,Jiahui Li,Jing Zhao,Chengwen Gu,Beitao Liu,Danhui Wang,Shouhai Zhang,Xigao Jian,Zhihuan Weng
Metal corrosion protection is particularly important when marine power systems and exhaust pipes are exposed to high temperatures and salt spray for long periods of time. The key to solving the problem lies in the development of a corrosion resistant coating that is resistant to high temperatures and salt spray. The unique twisted non-coplanar structure of poly(phthalazinone ether nitrile ketone) (PPENK) provides excellent temperature resistance, further improved by adding fillers. The PPENK is used as a resin matrix, combined with inorganic fillers such as silicon carbide, zirconium dioxide and aluminum triphosphate to develop an anticorrosive coating for the surface of steamship in high-temperature environments. This study involved a detailed investigation of the composite coating’s anti-corrosion properties with various formulations, aiming to assess its engineering properties. The results demonstrated that adding silicon carbide and aluminum triphosphate results in a coating with superior abrasion resistance. Notably, aluminum triphosphate significantly enhanced abrasion resistance, regardless of the quantity added. Assessment of temperature and decay resistance was conducted using high-temperature oxidation tests, salt spray tests, and electrochemical impedance spectroscopy, and the resultant coating maintained performance for over 3000 h at 250℃ and offered protection against salt spray for at least 2400 h. Conducting this study on polyaryl ether coatings with phthalazinone structures under high-temperature salt spray conditions establishes a robust basis for protecting maritime operational systems against corrosion, aiming to reduce economic losses and prevent casualties from equipment damage.
研究领域:
材料科学
·
腐蚀与防护工程
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2018
·Vol. 23
·期 7
·1643
·
IF 3.098
Chengde Liu,Yizheng Li,Jinyan Wang,Cheng Liu,Wentao Liu,Xigao Jian
Copoly(phthalazinone biphenyl ether sulfone) (PPBES) as a commercially available polyarylether is a promising orthopaedic implant material because its mechanical properties are similar to bone. However, the bioinert surface of polyarylether causes some clinical problems after implantation, which limits its application as an implant material. In this study, the surface of PPBES was modified by a biomineralization method of polydopamine-assisted hydroxyapatite formation (pHAF) to enhance its cytocompatibility. Polydopamine (PDA) coating, inspired by the adhesion mechanism of mussels, can readily endow PPBES with high hydrophilicity and the ability to integrate via the bone-like apatite coating. PPBES and PDA-coated PPBES were evaluated by scanning electronic microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and contact angle measurement. The water contact angles were reduced significantly after coating with PDA. PDA was successfully synthesized on PPBES and more PDA was obtained by increasing the temperature. Bone-like apatite on PPBES (apatite-coated PPBES) was confirmed by SEM and transmission electron microscopy (TEM). The cytotoxicity of pristine PPBES and apatite-coated PPBES were characterized by culturing of NIH-3T3 cells. Bone-like apatite synthesized by pHAF could further enhance cytocompatibility in vitro. This study provides a promising alternative for biofunctionalized PPBES with improved cytocompatibility for bone implant application.Keywords:polydopamine;bone-like apatite;phthalazinone;PPBES;coating;cytocompatibility
研究领域:
生物医学工程
·
材料科学
·
骨科
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Peiqi Xu,Shouhai Zhang,Hailong Li,Shugang Xu,Qian Liu,Zeyuan Liu,Danhui Wang,Han Jiang,Lin Zhuo,Xigao Jian
Chlorine-resistant membranes play a pivotal role in achieving high membrane durability and stable separation efficiency. Inspired by the high oxidative stability of esters, polyarylate nanofiltration (NF) membranes are fabricated using phthalazinone-containing bisphenol monomer, 2,4-(4-hydroxyphenyl)-2,3-phthalazin-1-one (BPPZ), and trimesoyl chloride on the porous substrate via interfacial polymerization. The polyarylate NF membrane exhibits good water flux (51.3 ± 0.9 L m −2 h −1 ) and Na 2 SO 4 rejection (93.6 ± 1.6%), even after exposure to a harsh chlorine environment (200000 ppm h sodium hypochlorite solution). Membrane oxidative stability arose due to ester linkages and strong steric hindrance in the polymeric separative layer, with enhanced chlorine resistance than state-of-the-art chlorine-resistant modified NF membranes. Meanwhile, the polyarylate NF membrane exhibits excellent thermal resistance, achieving a steady operation at 95 °C. This study provides a promising NF membrane with great application potential for treating oxidant-rich water and high-temperature separations.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
POLYMER COMPOSITES
·
2024
·
IF 4.8
Bing Wang,Nan Li,Jiale Li,Shan Cheng,Qingguang Bao,Ning Wang,Xigao Jian
Nine poly(phthalazinone ether ketone) resins were designed and synthesized using three bisphenol and four halogenated monomers. Poly(phthalazinone bisphenol ether ketone) (PPBEK) and poly(phthalazinone ether sulfone ketone) (PPBESK) demonstrated liquid oxygen compatibility (LOC), with PPBEK maintaining its LOC even after 20 days of immersion in liquid oxygen. The liquid oxygen compatibility mechanism of the polymers in the presence of force-thermal-chemical multi-energy fields was analyzed using techniques such as thermal analysis-infrared-gas chromatography (TGA-IR-GC), thermogravimetric analysis (TGA), and x-ray photoelectron spectroscopy (XPS). Carbon fiber (CF) reinforced composites were fabricated using PPBEK and PPBESK as matrices, with CF-PPBEK composites successfully achieving LOC. The microcracking resistance and mechanical properties of the composites were investigated in liquid oxygen at 90 K. The interaction mechanism between the composites and liquid oxygen was elucidated, providing theoretical guidance and an experimental foundation for the application of resin matrix composites in liquid oxygen storage tanks. Highlights Poly(phthalazinone ether) resins were meticulously designed and synthesized. ·PPBEK and PPBESK exhibited excellent liquid oxygen compatibility. Composites exhibited excellent liquid oxygen compatibility. Composites exhibited excellent low-temperature performance and heat resistance.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
THERMOCHIMICA ACTA
·
2018
·
IF 2.189
Feng Bao,Lishuai Zong,Nan Li,Yuanyuan Song,Yunxing Pan,Jinyan Wang,Xigao Jian
In this study, a series of poly(phthalazinone fluorenyl ether ketone ketone) (PPFEKK) copolymers were designed and synthesized via nucleophilic aromatic substitution polymerization of 1,4-bis(4-fluorobenzoyl)benzene (BFBB), 4-(4-hydroxyphenyl)(2 H)-phthalazin-1-one (DHPZ) and 9,9-bis(4-hydroxyphenyl)fluorene (BHPF) to investigate the effects of bulky fluorene units on the processability and thermal degradation behavior of the polymers. The structures of the PPFEKKs were investigated and confirmed by FTIR, 1 H NMR, wide-angle X-ray diffraction (WAXD) and gel permeation chromatography (GPC) techniques. Traditional thermal measurements showed that the T d 5% and T d 10% values of the copolymers increased as the content of BHPF units increased from 0 to 100 mol%, while their glass transition temperatures gradually decreased. The rheological measurements showed that the processability of the copolymers significantly improved upon incorporation of BHPF units; the poly(aryl ether)s were less viscous and thus more processable. The thermal degradation kinetics were clarified using TGA with Kissinger’s method. The copolymer undergoes two thermal degradation processes: as the content of BHPF units in the copolymers increased from 0 to 100 mol%, the activation energy of the first degradation reaction increased from 228 to 254 kJ mol −1 , and the activation energy of the second degradation reaction increased from 271 to 298 kJ mol −1 . The resulting films displayed excellent tensile strength (higher than 76 MPa), and their Young’s modulus values were inversely proportional to their BHPF contents. Dynamic mechanical analysis showed storage modulus values at 30 °C of approximately 2662, 2826, 2698, 2791 and 2830 MPa for the prepared polymers. Furthermore, the PPFEKKs were soluble in a variety of organic solvents, making them suitable for film casting.
研究领域:
高分子化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
HIGH PERFORMANCE POLYMERS
·
2020
·
IF 1.568
Dalin Dong,Yuezhen Bin,Xigao Jian
Meta-poly(phthalazinone ether ketone ketone) copolymers with 4,4′-dihydroxybiphenyls (meta-PPBEKK) was synthesized with 4,4′-dihydroxybiphenyls (BP), 1,3-bis(4-fluorobenzoyl)benzene (meta-DFKK) and 4-(4-hydroxyphenyl)-2,3-diazaphthalene-1-one (DHPZ). The copolymers are high-temperature resistant and have good solubility in many solvents. With increasing molar ratio of BP to meta-DFKK from 0 to 0.2, the addition of BP improves number-average molecular masses, intrinsic viscosity, mechanical properties and fluidity of meta-PPBEKKs. When the molar ratio of BP to meta-DFKK is 0.2, the intrinsic viscosity reaches 1.14 dL g−1, the number-average molecular mass reaches 44700 g mol−1, the maximum thermal elongation ratio reaches 14 with strength of 127.1 MPa and Young’s modulus of 2.4 GPa. With increasing molar ratio of BP to meta-DFKK from 0 to 0.2, meta-PPBEKKs have improved comprehensive properties, and make sense in many fields.
研究领域:
材料科学
·
高分子化学
✓ 已验证
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2025
·
IF 14.2
Xingyao Liu,Xiaoqing Sun,Peifeng Feng,Xinyu Fan,Zhongwei Yan,Xigao Jian,Yujie Song,Jian Xu
Carbon fiber-reinforced thermoplastic resin composites (CFRTPs) have gained significant recognition in industries such as rail transportation, aerospace, and wind power generation. Among these composites, carbon fiber/poly(phthalazinone ether nitrile ketone) (CF/PPENK) composite is considered to be a high potential CFRTP because of the exceptional thermal stability and solubility of its matrix. However, due to the smooth surface of CF and the limited number of reactive groups in PPENK, the CF/PPENK composite demonstrated poor interfacial properties. In this study, drawing inspiration from the strong adhesive properties of barnacle structures, three different interfacial phases were fabricated on the CF surface. In these composites, polydopamine (PDA) particles acted as “barnacle glue” and three types of polyhedral oligomeric silsesquioxane (POSS) acted as “barnacles”. The practicality and effectiveness of the design was initially verified by molecular dynamics simulations, which predicted optimal interfacial properties of the composite with PDA and 3-glycidyloxypropyl-POSS (EP) on the fiber surface (CF-PDA-EP/PPENK). X-ray photoelectron spectroscopy and scanning electron microscopy analyses confirmed the successful combination between the “barnacle structure” and CF. The experimental results aligned well with the simulation outcomes, validating that the interfacial properties of CF-PDA-EP/PPENK were optimal. Compared to the composites with unmodified fibers, the interlaminar shear strength and interfacial shear strength of CF-PDA-EP/PPENK were enhanced by 55.56 % and 210.73 %, respectively. This method offers an efficient and straightforward approach to the interfacial modification of the composites.
研究领域:
材料科学
·
复合材料工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
·
IF 13.273
Wentao Liu,Chengde Liu,Cheng Liu,Yizheng Li,Liang Pan,Jinyan Wang,Xigao Jian
Failure of poly(aryl ether ketone) (PAEK) bone implants results mainly from poor osteogenesis and bacterial infection. One promising strategy for enhancing osteointegration involves developing a bioactive surface of PAEK implants through chemical modification. Poly(phthalazinone ether nitrile ketone) (PPENK) is considered a potential PAEK bone implant because it possesses mechanical properties similar to those of natural bone and its cyano group has high reactivity which provides a surface modification strategy. In this work, recombinant human bone morphogenetic protein-2 (rhBMP-2) and newly synthesized cationic antimicrobial polypeptides (AMPs) were chemically conjugated to a PPENK substrate surface to enhance osteogenic and antibacterial activities. The molecular structures of AMP-1 and AMP-2 containing PEG segments were confirmed by nuclear magnetic resonance spectroscopy. The surface roughness of each substrate was reduced by rhBMP-2 and AMP immobilization. In situ, real-time quartz crystal microbalance with dissipation studies revealed that the loading amount increased with the successive immobilization of rhBMP-2 and AMPs. In vitro antibacterial assay confirmed that the AMP-modified PPENK surfaces provided an effective antibacterial effect and the number of residential bacteria remaining on the substrate was reduced by the PEG segments in AMP-2. In vitro osteogenic properties of the rhBMP-2-modified PPENK surface presented favorable cytocompatibility and osteo-inductive activity. In vivo studies confirmed that the rhBMP-2 and AMP immobilization led to decrease amounts of fibrous tissues around the implant and improved bone regeneration. This study provides a strategy for surface modification that enhances the antibacterial and osteogenic activities to develop a bone implant material with considerable potential for clinical application.
研究领域:
材料科学
·
生物材料
·
组织工程
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 6
·1531
·
IF 5
Guangsheng Zhang,Chenghao Wang,Lingmei Jiang,Yibo Wang,Bing Wang,Xiaoxu Wang,Haoran Liu,Lishuai Zong,Jinyan Wang,Xigao Jian
The photosensitive resins for 3D printing technology have been widely applied throughout the advanced communication field due to their merits of high molding accuracy and fast processing speed. Regardless, they, in particular, should have better mechanical properties, heat resistance, and dielectric properties. Herein, photocurable fluorinated poly (phthalazinone ether) (FSt-FPPE) was utilized as a prepolymer to improve the performance of photosensitive resin. A series of UV-curable inks named FST/DPGs were prepared with FSt-FPPE and acrylic diluents of different mass fractions. The FST/DPGs were cured into films by UV curing and post-treatment. After curing, their properties were characterized in detail. In terms of heat resistance, glass transition temperature (Tg) could reach 233 °C and the 5% thermal decomposition temperature (Td5%) was 371 °C. The tensile strength surprisingly reached 61.5 MPa, and the dielectric constant (Dk) could be significantly reduced to 2.75. Additionally, FST/DPGs were successfully employed in UV-assisted direct writing (DIW) to print 3D objects that benefited from their commendable fluidity and rapid curing speed. A stiff cylinder sample with a smooth surface and distinct pattern was ultimately obtained, indicating their remarkable 3D printing adaptation. Such photosensitive resin for UV-assisted DIW exhibits tremendous potential in the electronic industry.
研究领域:
材料科学
·
聚合物化学
·
3D打印技术
·
电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）